433 results about "Sludge settling" patented technology

PCT No. PCT / DK96 / 00063 Sec. 371 Date Nov. 19, 1997 Sec. 102(e) Date Nov. 19, 1997 PCT Filed Feb. 8, 1996 PCT Pub. No. WO96 / 25216 PCT Pub. Date Aug. 22, 1996A method and a basin serve the purpose of sedimenting sludge in waste water, which in a flow is supplied to the basin via an inlet and in clarified condition is removed via an outlet placed opposite to the inlet. In the inlet there has been built in resistances of flow which create a heavy turbulence in the water flowing and transform a substantial part of the energy of flow from the water into energy in the whirls which create the turbulence. Thereby there are created flow conditions which increase the creation of sludge flocs and the succeeding sedimentation of these.

The invention discloses a conditioner for dewatering of a domestic sludge, a formula of the conditioner includes a polyacrylamide being 0.3%-0.9% of the sludge to be processed, a bamboo charcoal being 5%-20% of dry weight of the sludge to be processed, a quaternary ammonium salt being 2%-1% of dry weight of the sludge to be processed, a quick lime being 2%-5% of dry weight of the sludge to be processed, and a polymeric aluminum sulfate being 5%-20% of dry weight of the sludge to be processed; and the method comprises the following steps of: at normal temperature and normal pressure, orderly adding the polymeric aluminum sulfate, the quick lime and the bamboo charcoal into the sludge to be processed, stirring the sludge for reaction for at least 5 minutes, further orderly adding the polyacrylamide and the quaternary ammonium salt, stirring the sludge for at least 3 minutes, finally, performing a filter pressing step. The conditioner and the conditioning method for dewatering of the domestic sludge have the advantages of being short in conditioning reaction time, fast in sludge depositing speed, good in dewatering effect and protective for environment without pollution.

The invention discloses a system and a method for deeply treating chemical wastewater and biochemical tail water, belonging to the technical field of wastewater treatment. The system comprises a physicochemical treatment system and a biochemical treatment system, wherein a distribution reservoir, a coagulating reaction tank, a sedimentation tank, an ozone oxidation reactor and a buffering tank in the physicochemical treatment system are connected in sequence; and the biochemical treatment system comprises a biological activated carbon filter, a drain tank and a sludge thickening tank. In the method, the pH value of the wastewater is regulated, and then, effluent is obtained after being sequentially subjected to coagulation, sedimentation, ozone oxidation and biological filter treatment, wherein part of sludge can be used as a catalyst to be recycled. Potassium permanganate and aluminum salt are used as a pre-oxidant and a coagulant, and manganese dioxide generated through reaction is used as an oxidant, an adsorbent, a catalyst and a reaction crystal nucleus, so that organic matters are further degraded, and the sludge settleability is improved. The effluent obtained through treating the wastewater by using the method disclosed by the invention can completely conform to the grade-A discharge standard of a wastewater treatment plant.

The invention belongs to waste water treatment equipment, especially relating to an improved aeration settling tank. The improved aeration settling tank comprises a tank body, a water inlet pipe arranged in front of the side wall of the tank body, a slope tilting downwards from end to beginning and arranged on the bottom of the tank body, an aerator arranged on the bottom of the tank, a water tank arranged at the inner side of a tank wall on the tail end of the tank body and inclined plates distributed at interval and in parallel in front of the water tank; the front side and the back side of the inclined plate are respectively provided with a first partition wall and a second partition wall; the first partition wall and the second partition wall divide the tank body into an aerobic zone, a pre-settling zone and a clean water zone which are arranged from front to back at interval; the pre-settling zone is communicated with the aerobic zone through water inlet holes and sludge returning holes arranged on the first partition wall; a perforated water collector pipe is arranged in parallel on the upper portion of the second partition wall; the inlet of the perforated water collector pipe is arranged in the pre-settling zone above the inclined plate, and the outlet thereof is arranged in the clean water zone; a sludge pipe is arranged on the bottom of the tail end of the clean water zone; the bottom of the water tank is communicated with the exterior of a water pipe. The improved aeration settling tank overcomes the technical defect that the degradation rate of pollutants is low in the prior art and has the advantages of good sludge settling effect, high degradation rate of the pollutants and so on.

The invention discloses an AOA coupled anaerobic ammonia oxidation deep nitrogen and phosphorus removal process, which comprises an anaerobic zone for internal carbon source storage and phosphate release, an aerobic zone for aerobic excessive phosphorus uptake and short-cut nitrification-anaerobic ammonia oxidation, and an anoxic zone for internal carbon source short-cut denitrification-anaerobic ammonia oxidation, wherein an active biological filler is added into the aerobic zone and the anoxic zone to enrich main functional bacteria, the anaerobic zone has long hydraulic retention time and can store an internal carbon source, the anoxic zone is located at the rear end of the aerobic zone and does not need nitrification liquid backflow, and an aeration zone is added at the rear end of the anoxic zone to improve sludge settleability. The AOA coupled anaerobic ammonia oxidation deep nitrogen and phosphorus removal process solves the problems of insufficient carbon source and incapability of synchronously and deeply removing nitrogen and phosphorus in the nitrogen and phosphorus removal process, reduces the loss of the carbon source, improves the utilization rate of the carbon source, reduces the operation energy consumption of a sewage treatment system, and bring a better application prospect to deep nitrogen and phosphorus removal of urban sewage.

The present invention discloses one kind of efficient anaerobic ammoxidation reactor comprising a reactor body and support legs. The reactor body has a sludge settling chamber with triphase separator, overflow weir, liquid sealing groove, liquid seal water level controller and liquid seal groove slag exhaust pipe; a flaring chamber with conic baffle; an upward flow reactor with stuffng; a cyclonic water distributor; said a four-way pipe comprising a water inlet pipe, a sludge exhaust pipe and an outer circulating pipe. The present invention has capacity of efficiently remaining anaerobic ammoxidation bacteria, great anaerobic ammoxidation capacity, high impact resistance and other advantages.

The invention discloses a method and a reaction system for reducing sludge by using endogenous denitrification biological denitrification and dephosphorization, belonging to the field of sewage treatment. It solves the problems that the existing sludge reduction technology will increase the energy consumption of sewage treatment, deteriorate the sludge settling performance, weaken the removal effect of nutrients such as nitrogen and phosphorus, and easily cause secondary pollution. The invention utilizes the soluble COD produced in the sludge thickening anaerobic process as the carbon source for the anaerobic phosphorus release by the phosphorus accumulating bacteria to realize nitrogen and phosphorus removal. The sludge multiplied in the sewage treatment process is anaerobic-aerobic coupled and the sludge return section is inserted into the sludge anaerobic tank, and the concentrated sludge is anaerobically treated to achieve sludge reduction. The sludge yield of the invention can be reduced by 40-60%, the removal rate of organic matter is stable above 90%, and the removal rates of total nitrogen and total phosphorus are respectively above 86% and 72%. The invention has the advantages of low investment and operation cost, high denitrification and dephosphorization effect, effective realization of sludge reduction and low secondary pollution. The reaction system of the invention has a simple structure and is easy to operate.

The invention discloses a sewage treatment system comprising a treatment tower body, a muddy water outlet, a muddy water outlet, a muddy water inlet, a clean water outlet and a biogas outlet, wherein an anaerobic fluidized bed reaction zone, a sludge settling zone and a membrane separation zone are sequentially defined in the treatment tower body from bottom to top; carrier particles attached with anaerobic microorganisms are contained in the anaerobic fluidized bed reaction zone which is provided with a vertical flow guide cylinder; a solid-liquid separator is arranged at the upper end of the flow guide cylinder; the membrane separation zone is provided with a rotary membrane component; the sewage inlet is formed in the lower part positioned on the side wall of the anaerobic fluidized bed reaction zone; the muddy water outlet is formed in the upper part positioned on the side wall of the anaerobic fluidized bed reaction zone; the muddy water inlet is formed in the lower part positioned on the side wall of the anaerobic fluidized bed reaction zone and is communicated with the flow guide cylinder; the clean water outlet is formed in a side wall positioned in the membrane separation zone; and the biogas outlet is formed in the top part positioned in the membrane separation zone. The system not only can realize purification of sewage but also can generate a lot of high-caloric-value biogas, and is compact in structure and low in running cost.

The invention discloses an electrophilic suspended bio-carrier and a preparation method thereof. The electrophilic suspended bio-carrier comprises the following raw materials in parts by mass: 100-250 parts of high-molecular interstitial substance, 2-15 parts of electrophilic functional material, 2-20 parts of auxiliary material 1; 2-20 parts of auxiliary material 2 and 1-10 parts of auxiliary material 3. The electrophilic suspended bio-carrier is formed by the raw materials through mixing, granulation, screw extrusion, cooling and cutting. The electrophilic suspended bio-carrier provided by the invention is convenient to prepare, and the density of the electrophilic suspended bio-carrier is controllable within 0.91-0.97 g / cm<3>; according to the property that microbes have negative electricity in water, the electrophilic suspended bio-carrier is mixed with the positively charged functional material to endow the surface of the electrophilic suspended bio-carrier with positive charge to enhance the compatibility between the microbes and the electrophilic suspended bio-carrier. The electrophilic suspended bio-carrier is favorable for apposition growth of microbes and easy for biofilm culturing, has a short period, large biomass, high ammonia nitrogen removal efficiency and good effluent quality; the sludge settling property is good, and equipment operation is free from a sludge blockage phenomenon; the service life of the electrophilic suspended bio-carrier is long and manual replacement and maintenance are not needed.

The invention discloses a closed-loop control system for treating landfill leachate in cooperation with partial nitrosation and denitrification and a denitrifying and decarburizing method for treating the landfill leachate. A programmable logic controller in the system is connected with a water inlet pump, a water outlet valve, a mud valve, a stirrer, a fan, a water inlet / outlet and an alarm floating ball switch, a sensor automatically controls the process of a reactor such as water charging, stirring, aerating, depositing, mud discharging, and water discharging, and the system is provided with a constant temperature system to control the reaction temperature. The denitrifying and decarburizing method comprises the following steps of: firstly stirring in an anaerobic way to denitrify partial nitrite nitrogen and nitrate in the reactor after the water charging, and aerating to degrade the residual organic matter and carry out partial nitrosation, so that the most degradable organic matters can be removed, and about 53% of ammonia nitrogen can be converted into nitrite nitrogen, therefore, a condition can be created for the anaerobic ammonia oxidation treatment. The system can carry out the stable denitrification treatment and the partial nitrosation treatment on the landfill leachate, can further effectively remove the organic mattes, and is high in mud settleability, high in activity, full-automatic in control, convenient and reliable.

The invention provides a method and device for measuring the low concentration sludge settling rate at turbulent motion. The image of sludge is processed to obtain sludge measuring data. The image acquiring device is connected with the measuring computer by the data line. The measuring computer comprises: an image acquiring module, an image processing module and an image measuring module. The image measuring module operates based on the acquired data from the image processing module to obtain the data of the tested sludge and comprises a sludge grain size measuring sub-module for calculating the average diameter of the sludge image based on the acquired sludge image from the image processing module to calculate the real average diameter of the sludge image based on the scaling proportion; a sludge settling rate measuring sub-module for calculating the rate of the sludge on the image based on the two frame image obtained from the processing module and calculating the real sludge settling rate based on the scaling proportion. The invention has features: high precision of measuring result, quick measurment, easy usage and automatization.

The invention discloses an integrated recycled water treatment device. The device comprises a regulating tank, an aeration grille, an air floating tank, an anaerobic tank, an aerobic tank, a settling tank, a filter tank, a disinfection tank and a siphonic mud discharge pipe, wherein the aeration grille is arranged at a water inlet of the regulating tank; the air floating tank is arranged at the upper end of the regulating tank; one end of the siphonic mud discharge pipe is arranged in the regulating tank, and the other end of the siphonic mud discharge pipe is arranged at the bottom of the settling tank; and the sewage to be treated firstly flows through the aeration grille, then is pumped to the air floating tank by a lifting pump, and sequentially flows through the air floating tank, the anaerobic tank, the aerobic tank, the settling tank, the filter tank and the disinfection tank of which the highest liquid level differences are successively reduced. Sludge settled at the bottom of the settling tank in the integrated recycled water treatment device can be pumped to the inside of the regulating tank by the siphonic mud discharge pipe, thereby ensuring the quality of the water discharged from the integrated recycled water treatment device. According to the integrated recycled water treatment device disclosed by the invention, the backflow of sludge in the settling tank is realized through the siphonic mud discharge pipe, and the sewage treatment load of the device is improved.

The invention relates to a sewage and sludge treatment device with a reciprocating scraping plate mechanism, and belongs to the technical field of garbage compression equipment. The sewage and sludgetreatment device comprises a sewage collection tank, a flow guiding oblique tank, a filtering tank, a filtering screen, a scraping plate assembly used for scraping settled sludge off the sewage collection tank, and driving assemblies used for driving the scraping plate assembly to move; the sewage collection tank is formed in the bottom of a garbage compression box, a sewage and sludge discharge hole is formed in a bottom plate area of a garbage compression box body, and the bottom of the flow guiding oblique tank is connected with the filtration tank; the middle of the filtration tank is connected with the filtration screen, and a scraping plate of the scraping plate assembly pushes sewage and sludge in the sewage collection tank to the flow guiding oblique tank under driving of the driving assembly. According to the sewage and sludge treatment device, in cooperation with the box body, complete-sealing sewage discharge can be achieved, the work environment in a station is effectivelyimproved, and the sewage and sludge treatment device is provided with the reciprocating scraping plate so that the sludge settled in the sewage collection tank can be removed; a stable sludge and sewage discharge function is ensured, secondary filtration can also be conducted by a drawer-type filtering screen on the tail portion of the device, cleaning is conveniently conducted, and the subsequentsewage and sludge discharge system is effectively prevented from being blocked.

The invention belongs to the technical field of environmental protection processing devices, and relates to an air flow and machinery double-boosting internal circulation-type high suspension solid anaerobic digestion device. The device comprises a material charging pipe, an internal cylinder section, an external cylinder section, a three-phrase separation section, a mixing section, a water discharging pipe, a sludge discharging pipe, a methane collecting pipe, a sampling detection port and the like. The material charging pipe sends suspension solid to the internal cylinder section directly; in the internal cylinder section, anaerobic sludge and the suspension solid are mixed and elevated through double power actions of generated rising methane air flow after reaction and mechanical blade boosting; then the mixed liquid goes into the three-phrase separation section; in the three-phrase separation section, waste water overflows and is discharged by the water discharging pipe, methane rises up and goes into the methane collecting pipe, the sludge settles and goes into the mixing section through the external cylinder section, part of the sludge goes into the internal cylinder section under the action of the above thrust and forms internal circulation, and the excess sludge is discharged by the sludge discharging pipe. The device can be used for processing of waste water containing high suspension solid, residual sludge, household garbage and the like. The device has remarkable social, environmental and economic benefits.

The invention discloses a green-ecological river channel desilting treatment system and a treatment method thereof. The system comprises an environment friendly cutter suction dredger, a sludge conveying pipeline, a high speed stirring device and a sludge drying bed, wherein a desilting device, a mud hold and a sludge pump are arranged on the environment friendly cutter suction dredger; an environment friendly suction cutter head is arranged at the bottom end of the desilting device and used for sucking sludge in a stirring manner; the mud hold is used for storing sludge; the sludge pump is used for pumping sludge into the high speed stirring device through the sludge conveying pipe; the high speed stirring device is communicated with the sludge conveying pipeline and used for uniformly stirring sludge with a high performance hydrophobic agent SHJ and a polymeric flocculant XNJ that are added in sludge; the sludge drying bed comprises a primary sludge settling tank, a process formulation tank, a sludge-water separation solidification facility, a tail water treatment tank and a loading depot. According to the green-ecological river channel desilting treatment system and the treatment method thereof, the sludge removal rate is improved, secondary pollution to the environment is avoided, and technical reference is provided for desilting of large, middle-sized and small-sized river channels.

Wastewater and sewage filtering and adsorbing unit includes sewage reservoir, clean water reservoir, active coke powder storage, filtering and adsorbing tank, control cabinet, saturated active coke sludge settling tank, filtering and adsorbing material. The sewage reservoir and the clean water reservoir are on one side, and the filtering and adsorbing tank and the active coke powder storage are on other side. Active coke powder storage is above and connected to filtering and adsorbing tank by conduits; inlet pipes in rows and an outlet branch pipe are mounted into the filtering and adsorbing tank. Filtering and adsorbing material is active coke powder. The sewage reservoir is connected with the filtering and adsorbing tank. An active coke sludge discharge port and an active coke sludge conveyor, which are connected to the saturated active coke sludge settling tank by transporting pipelines, are at the bottom of the filtering and adsorbing tank.

The invention provides quick analysis equipment for monitoring operating states of sewage treatment plants. The quick analysis equipment comprises a sampling unit, a monitoring unit, a data processing unit and a power unit. The sampling unit comprises a sample pipeline and a sampling pump; the monitoring unit comprises a monitoring barrel, a sludge monitoring device and a biological monitoring device, the monitoring barrel is used for accommodating to-be-monitored fluid, and samples in the monitoring barrel can be monitored by the sludge monitoring device and the biological monitoring device; the data processing unit is provided with stored databases, data in the databases include diversified sludge settling behavior parameters and diversified microorganism data under different natural conditions and process operating conditions, data from the sludge monitoring device and the biological monitoring device can be acquired by the data processing unit, the acquired data and the data in the stored databases are compared and processed by the data processing unit, and state reports related to the operating states of the sewage treatment plants can be generated by the data processing unit. The invention further provides a method for monitoring the operating states of the sewage treatment plants by the aid of the quick analysis equipment.

The invention belongs to the technical field of environmental protection, and particularly relates to a device and a treatment method for digesting sludge with microorganism and microfauna. The device mainly comprises a sewage degradation reactor, a sludge digestion reactor, a sludge settling pond and the like. Microorganism combined packing and a plurality of deflection baffles are fixed in the sludge digestion reactor, and tubificidaes are inoculated on the surface of the combined packing. Sewage and sludge generated in the sewage degradation reactor enter the sludge digestion reactor, the tubificidaes in the reactor utilize the sludge as a growing substrate to maintain metabolism, and the deflection baffles are used for increasing flow paths, so that the sludge is reduced. The undigested sludge subjected to settling flows to the sewage degradation reactor or the sludge digestion reactor, the excess sludge is drained from a sludge discharging port, and water which is up to the standard by means of treatment is drained via the drainage port. The device has the advantages of low energy consumption, low cost, no secondary pollution and high pollution discharge capacity.

The invention relates to a tri-phase separator used for an up flow type anaerobic reactor, which consists of a reflection cone, a cone-shaped guide cylinder arranged on the reflection cone, a cylindrical guide cylinder arranged at the center of the cone-shaped guide cylinder, and a gas shield arranged at the upper end of the cone-shaped guide cylinder, wherein a vent pipe is arranged at the outside below the top part of the cone-shaped guide cylinder, and the top part of the gas shield is provided with a vent pipe, an annular passage is arranged between the cone-shaped guide cylinder and the cylindrical guide cylinder, and an annular overflow passage is arranged between the cone-shaped guide cylinder and the upper-end gas shield. In the invention, the cylindrical guide cylinder is added in the cone-shaped guide cylinder to separate the influx inlet from the reflux inlet of muddy water, thus having simple structure, solving the problem that the influx inlet and reflux inlet of the tri-phase separator are overlapped, improving the separating effect of gas, liquid and solid, keeping stable liquid flow of sludge settling areas, and improving waste water removal efficiency of the anaerobic reactor.

The invention provides a bore cleaning device for cast-in-place bored piles, which comprises a drill stem and an externally hung steel wire rope disposed on the same. The bore cleaning device enables the steel wire rope on the drill stem to rotate with the drill stem, such as an impeller to rotate, so that firstly, large mud pies in a cast-in-place bored pile can be broken to facilitate sludge settling and bore cleaning, and the efficiency of hole cleaning can be improved greatly; and secondly, under rotation of the impeller, such as the steel wire rope, the mud is mixed fully and generates impact to sweep the wall of a bore, the effect of mud wall protection is improved greatly, and bore forming quality and pile forming quality are improved. The bore cleaning device is simple to operate and saves construction period, so that the pile forming quality can be improved, and considerable economic benefit and social benefit are created for engineering.

The invention provides a turnover type oblique plate precipitation tank, which aims at solving the problems of sludge settling and inconvenience in sludge discharging in the existing oblique plate precipitation tank. The turnover type oblique plate precipitation tank comprises a casing 1, a water inlet passage 2, a precipitation area 3, an oblique plate 4, a clean water area 5, a water outlet groove 6, a sludge hopper 7, a sludge discharge pipe 8, a left fixed hole 9, a right fixed hole 10, and a fixing long nail 11, wherein holes are formed in the left and right outermost sides of the oblique plate 4; when the oblique plate 4 is inclined to the left and fixed, the fixing long nail 11 penetrates through the hole in the oblique plate 4 at the leftmost side, and is inserted into the left fixed hole 9, and then the oblique plate 4 is fixed; when the oblique plate 4 is inclined to the right and fixed, the fixing long nail 11 penetrates through the hole of the oblique plate 4 at the rightmost side, and is inserted into the right fixed hole 10, and then the oblique plate 4 is fixed. The turnover type oblique plate precipitation tank has the advantages that the oblique plate can be adjusted into a vertical angle, so as to favorably discharge the sludge; after sludge is discharged, the oblique plate can be turned over and used; after turning over, the upper surface with sludge settling previously is changed into the lower surface, the settled sludge is flushed away by water flow and falls down.

The invention discloses a sludge settlement ratio monitoring system and a monitoring method thereof, and relates to the field of sewage treatment. The system comprises a shell, an automatic sampling device, an image acquisition device and a data processing and storage device. The automatic sampling device comprises a measuring cylinder; the image acquisition device comprises a camera, the camera is arranged on the shell, the camera and the measuring cylinder are oppositely arranged, the horizontal plane where a scale corresponding to one half of a sampling volume in the measuring cylinder is located is a first horizontal plane, and the central axis of a camera lens is located in the first horizontal plane; and the data processing and storage device is used for analyzing and calculating theimages acquired by the image acquisition device. According to the arrangement, the camera shoots the form of the water sample in the measuring cylinder more clearly and completely, and the accurate numerical value of the sludge settlement ratio is obtained by analyzing and calculating the shot image. Through the automatic monitoring and control of the monitoring system, the detection is accurateand efficient, and the labor cost is low.

The invention relates to a method for increasing the forming speed of anaerobic ammonia oxidation granule sludge. The method comprises the steps that practical industrial wastewater with low C / N is taken as a culturing nutrient source of the anaerobic ammonia oxidation granule sludge, and the mass concentration ratio of NH4<+>-N to NO2<->-N of inflow water is controlled to be (1.05-1.42) to 1; a mixture of anaerobic sludge and livestock breeding faeces is taken as inoculated sludge, by means of the modes of changing the substrate concentration of the inflow water, shortening the hydraulic retention time, controlling the granule size, the granule sludge settling speed and MLVSS / MLSS of the anaerobic ammonia oxidation granule sludge and the like, a nitrogen load of anaerobic ammonia oxidation inflow water is changed, the retention and amplification problems of anaerobic ammonia oxidation bacteria can be effectively solved, and by means of granulation of anaerobic ammonia oxidation sludge, the influence of nitrogen removal efficiency dropping caused by environmental changes can be weakened to some extent.

The invention relates to the technical field of sewage treatment, and in particular relates to a circular settling tank which comprises a tank body, water inlets, water outlets, sludge settling plates and a sludge settling barrel, wherein a plurality of layers of sludge settling plates are available, the water inlet and the water outlet are respectively formed at the upper side of each sludge settling plate, and the water inlets and the water outlets are formed along the tangential direction of the tank body. According to the circular settling tank, water passes into and out of the circular settling tank along the tangential direction, so that sewage can circulate in the circular settling tank, the standing time of the sewage in the circular settling tank can be prolonged, and the sedimentation effect of the sludge can be improved; furthermore, the plurality of layers of sludge settling plates are available, equivalently, a plurality of groups of settling tanks are additionally arranged, so that the sludge settling area is enlarged under the condition of the same occupied land area, and the settling efficiency is greatly increased; furthermore, the vertical distance between every two layers of sludge settling plates is shorter, so that particles with smaller particle sizes can be settled, and the sedimentation effect is improved.

The invention provides a method for removing toluene in water by utilization of aerobic granular sludge. The method comprises the following steps: measuring the COD value; extracting extracellular polymers; calculating the sludge settling ratio; calculating the sludge concentration; using a microscope for microscopical examination, using an acid-base meter to measure the pH value, and using a dissolved oxygen meter to measure the DO value; and using a common thermometer to measure the room temperature and the water temperature. The method has the advantages that culture of the aerobic granular sludge is favorable for realizing improvement of the prior sewage treatment technology, and is beneficial in the aspects of treatment of water pollution, control of eutrophication of water bodies, protection of water resources and ecology, and so on. The method combines actual sewage and simulated sewage to culture the aerobic granular sludge, has better removal effect on pollutants in wastewater, has simple preparation technology, simple and convenient operation, low energy consumption and low cost, provides novel technology suitable for industrialization for the water treatment industry, and simultaneously provides technical support for releasing water resource shortage and improving the water environmental pollution condition.

The invention provides a sludge treatment method, which includes the steps of: using secondary sludge in the sewage treating apparatus, adding a certain mount of fly ash in the mud sedimentation stage, adding 250-350g of fly ash for 1L of mud water, and then stirring and mixing mud water and fly ash, standing still, causing mud to subside rapidly, and then pumping mud water after sedimentation into sludge dewatering workshop by pump, dewatering by filter press for obtaining mud water with moisture percentage 40-50%. Then the treated mud is used for burning building material product brick and fertilizer for agriculture. The methods provided by the invention have the advantages that: produced fly ash from electric power plant is added into a certain amount of mud water, without adding other materials, thereby improving dewatering performance of water plant mud significantly, reducing mud moisture percentage greatly, and the treated mud can be used for sintering building material product and applying in agriculture directly.

The invention provides an anaerobic acclimation-culturing process for sludge, which comprises the following steps of: a) settling aerobic sludge; b) putting the settled aerobic sludge into an anaerobic acclimation-culturing device and settling the settled aerobic sludge continually; and c) introducing water into the anaerobic acclimation-culturing device to perform anaerobic acclimation culturing on the settled sludge. The invention also provides the anaerobic acclimation-culturing device for the sludge, which comprises a sludge settling device and an anaerobic sludge acclimating device connected with the sludge settling device. The anaerobic acclimation-culturing process and the anaerobic acclimation-culturing device for the sludge provided by the invention well solve the problems of an acclimation-culturing process in which aerobic active sludge is taken as an anaerobic technical sludge source and realize successful and rapid startup of an anaerobic process.

The invention relates to sludge treatment in sewage treatment, including a method for settling, concentrating and dehydrating sludge and a method for settling, concentrating and dehydrating sludge in a similar lake and river desilting process. In the process of settling, concentration and dehydrating the sludge, the sludge is uniformly distributed in the water to form a relatively stable state, so the mud-water separation is hard to happen. The method adopted by the invention comprises that: a vibration source for generating vibration on the sludge is added to the sludge in the process of natural settlement and concentration of the sludge and mechanical concentration and dehydration of the sludge; and a vibration force with the same direction as the gravity or the extrusion force is generated by a vibration device and breaks the relatively stable state of the sludge and water in the mixture of the sludge and water so as to accelerate the mud-water separation and speed up the sludge settlement, concentration and dehydration.

The invention discloses a sewage treatment device. The sewage treatment device comprises a tank body and a water inlet, wherein the water inlet is mounted at the top end of the right side of the tankbody; a condensation pipe is mounted on the right side inside the tank body; a first baffle is mounted on the left side of the condensation pipe; a second sliding block is mounted on the left side ofthe first baffle; a second sleeve is mounted at the bottom end of the tank body; a second baffle is mounted at the top end inside the second sleeve. According to the sewage treatment device, the condensation pipe is flushed with sewage by matching the water inlet with the condensation pipe, so that water vapor can be cooled and liquefied; distilled water is collected and utilized; meanwhile, a cooling device and pouring of a coolant are also omitted, and the sewage is preheated by heat released by liquefying water vapor, so that heat loss is reduced and energy is saved; a brush rod is driven to rotate by matching a first sliding block with a first compression spring and taking the water vapor as power; heavy metal sludge settled on a heating plate is cleaned, and further demands of customers are met.

The invention discloses an advanced treatment method of industrial waste water by combining catalysis internal electrolysis, coupling, oxidization and flocculation, which relates to the technology of the advanced treatment of industrial waste water. The method comprises the following steps of adjusting the pH value of the biologically treated industrial waste water with CODCr of 200 to 300 mg / L and chroma of 100 to 400 times to be 5, then adding iron and carbon (the volume rate is 1:1) Pall ring filling, and aerating for two hours; filling the mixed solution of white lime, 30% peroxide solution and water in the mass rate of 2:1:17 to adjust the pH value of the waste water to be 8 to 9; adding anion polyacrylamide so that the content of PAM in the waste water is kept to be about 0.5ppm, standing and depositing for 30min after stirring the waste water with water force for 15min, and measuring and making sure that the CODCr of the supernatant liquor is less than 100mg / L and the chrom is less than 50 times, and then discharging water which reaches the national primary standard Synthetical Draining Standard of Sewage. The invention is completed by the synergistic effect of catalysis internal electrolysis, oxidization and flocculation, has the advantages of high treating efficiency, short staying time of water force, fast sedimentation of sewage, less sewage production and low operation cost, and is widely suitable for the advanced treatment of different industrial waste water.