1026results about How to "Improve the coagulation effect" patented technology

The invention relates to a high efficiency water treatment flocculant for drinking water and water treatment comprising a metal cation flocculant which is characterized in that the high efficiency water treatment flocculant also comprises a high efficiency adsorption component and an assistant medicament to be remixed, inwhich the weight ratio is: the high efficiency adsorption component 5-15%, the metal cation flocculant 50-85%, the assistant medicament 5-15%. The obvious characteristics of the invention are that each component can play the advantages of high intensity of the flocs of the inorganic flocculant and large flocs of the polymeric flocculant, overcomes the drawback of small flocs of the inorganic flocculant and low intensity of the flocs of the organic flocculant. The existence of the high adsorption component plays the action of adsorption of the organic compounds and heavy metal ion which are difficult to flocculat and precipitate, also plays the role of aid-coagulation, decoloration and deflavour. Thus the flocculant of the invention has advantages of good coagulation effect, large alum blossom, rapid settling velocity, good effluent quality and few dosage or the like.

An ultrasonic surgical device for the coagulation of animal tissue having an ultrasonic applicator and a movable jaw with a jaw surface adjacent the distal portion of the ultrasonic applicator for movement toward the applicator to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters from the applicator. The device may also include a mechanical cutting element that can be extended into the clearance to cut the tissue and means to vary the predefined clearance without removing the applicator from the patient. Tissue coagulating and cutting can be maximized and performed separately and can be easily monitored by the surgeon.

A preparation method of bentonite phosphorus removal water purifying agent comprises the steps of drying calcium bentonite or sodium bentonite, pulverizing, sieving with 200 mesh sieve, adding a lanthanum salt solution, stirring in a water bath with room temperature to 60 DEG C for 2-12 hours, washing, and preparing into 5-10 wt% slurry; adding inorganic polymeric flocculant into the above slurry, and stirring; filtering; and drying the filter cake at 70-90 DEG C, and pulverizing to 40-200 mesh powder as bentonite phosphorus removal water purifying agent. The inventive method modifies bentonite with inorganic polymeric flocculant and lanthanum salt, so as to enhance the precipitation, coagulation and flocculation action of the bentonite phosphorus removal water purifying agent through the synergism among the inorganic polymeric flocculant, lanthanum salt and bentonite. The inventive method is simple; and the obtained bentonite phosphorus removal water purifying agent has high efficiency and good safety, and has important application value in environmental protection and controlling of water bodies such as river, lake and water reservoir.

The invention relates to a method for coagulating coal-bed gas produced water, which is realized in a way that: coal-bed gas produced water is coagulated by combining a chemical compounded from an inorganic coagulant and an organic flocculant with a coagulation assistant, or combining an inorganic coagulant, an organic flocculant and a coagulation assistant; a pretreatment pool is arranged at the outlet of the coal-bed gas produced water, a coagulation assistant dissolving box is arranged at the water inlet of the pretreatment pool, and the amount of the coagulation assistant is controlled by using a measuring pump or flowmeter; and the coal-bed gas produced water is firstly conditioned by the coagulation assistant, and then treated by the chemical compounded from the inorganic coagulant and the organic flocculant, or treated by combining the inorganic coagulant and organic flocculant. The amounts of the compounded or combined inorganic coagulant and organic flocculant are controlled by using the measuring pump or flowmeter, thereby effectively removing suspended matters in the coal-bed gas produced water, being beneficial to removing oil, multiple soluble ions, other organic substances and the like, reducing the consumption of chemicals and relieving the treatment load of the subsequent technique, so that the treated produced water can be discharged under the standard or can be conveniently recycled.

The invention discloses efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing and a preparation method thereof. The packing is prepared from the following raw materials in parts by weight: 45-65 parts of pure iron powder, 10-25 parts of cast iron powder, 2-8 parts of graphite powder, 5-15 parts of active carbon powder, 2-10 parts of copper powder, 2-10 parts of manganese powder, 2-10 parts of aluminum powder, 2-10 parts of fine wood bits, 1-6 parts of sodium silicate, 1-6 parts of sodium borate, 2-6 parts of pyrite dust and 5-15 parts of an adhesive. The efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing disclosed by the invention is prepared by taking heterogeneous metal alloy with high potential difference as a catalyst and using a high-temperature micropore roasting technology and has the characteristics of heterogeneous metal and ferric-carbon integration, micropore framework type alloy structure, large specific surface area, low density, strong activity, high current density and the like; organic wastewater is treated so that COD, ammonia nitrogen and total phosphorus can be efficiently removed, the chroma can be reduced, the biodegradability can be improved, the treatment effect is extremely stable, and the phenomena of packing passivating, hardening and the like caused in the operation process can be avoided.

The invention discloses a low-cost domestic sewage treatment agent. The low-cost domestic sewage treatment agent contains polymerized ferric chloride, polyacrylamide, polyethyleneimine, bentonite, sodium chloride, lime, an adsorbate, sodium carbonate and a pH regulator. The treatment agent has the advantages that domestic sewage can be treated effectively, the cost is low, the effect is good, the pollution to ecological environment caused by the domestic sewage is alleviated, the removal ratio of suspended solids in the sewage reaches 98.3%, the BOD (Biochemical Oxygen Demand) removal ratio is 95.2%, the COD (Chemical Oxygen Demand) removal ratio is 96.8%, and the chroma is 5.

The invention discloses a composite flocculant and a preparation method and application thereof. The flocculant is prepared from rare-earth carbonate, sodium silicate and ferric sulfate / aluminum sulfate serving as raw materials by a composite copolymerization method. The effect of the composite flocculant of the invention is superior to that of the conventional polymeric ferric / aluminum silicate sulfate; the chroma removal rate of wastewater reaches over 90 percent; the COD Cr removal rate reaches over 65 percent; the removal rate of total phosphorus reaches over 88 percent; and the expense of a wastewater treatment medicament is reduced by 10 to 20 percent compared with PASS. The composite flocculant has rapid, large and solid alumen ustum, reduces the use amount of a single dye wastewater coagulating agent by over one half compared with PAC and by over 20 percent compared with PASS, improves the chroma removal rate of the wastewater by about 10 percent, has low processing cost, and improves the processing effect.

The invention mainly discloses a middle-set type high density sediment water purification tank and a purification technology thereof. The middle-set type high density sediment water purification tank comprises a reaction region, a clarification region and a sludge transfer tank. The reaction region comprises a mixing tank and a flocculation tank; the clarification region comprises a pre-sedimentation region, a sludge concentration region, an inclined pipe sedimentation region and a clear water canal, wherein the sludge concentration region is arranged at the bottom of the clarification region, the inclined pipe sedimentation region is arranged above the clarification region, and the clear water canal is connected with a water outlet pipe through a finger type water collecting tank positioned above the inclined pipe sedimentation region. A plurality of conical sludge collecting pits are arranged at one side of the bottom surface of the clarification region, and a sludge scraper is arranged on the bottom surface of the clarification region; a gas stripping device which lifts sludge in the sludge collecting pit to a sludge discharging groove at the upper part of the clarification region is arranged in each sludge collecting pit; the gas stripping sludge discharging groove is connected to the sludge transfer tank; the sludge transfer tank is connected with a water inlet pipe through a reflux pump; and simultaneously, the sludge transfer tank is connected with a sludge pump. The middle-set type high density sediment water purification tank has the advantages of having simple tank shape, compact structure and water outlet quality, being beneficial to the control on a sedimentation tank and the concentration and number of returned sludge, ensuring the stability of operation conditions and being low in operating cost.

The invention discloses a PAC-PDMDAAC compound coagulant, a corresponding preparation method and an application method. The PAC-PDMDAAC compound coagulant is prepared as the following steps: the PAC dry powder or solution is arranged in a mixing reactor, and water is added to obtain a PAC solution which is stirred under normal temperature and a PDMDAAC colloid is added into the solution; the mixed solution is stirred under normal temperature till the PDMDAAC colloid is completely dissolved to obtain a stable PAC-PDMDAAC. The application of the PAC-PDMDAAC compound coagulant is to adopt the PAC-PDMDAAC compound coagulant for the coagulation treatment to raw water and waste water and sewage and the dehydration treatment to sludge or silt directly or after dilution with water by any proportion. The component structure and content scope of the invention are distinct to guarantee the capability and stability of the obtained PAC-PDMDAAC compound coagulant, and the materials on industrial manufacturing are available. The various functions of the PAC-PDMDAAC compound coagulant can be adjusted during water treatment with high adaptability so as to reduce cost, reinforce coagulation effect and dramatically enhance the quality of obtained water.

The invention relates to high-strength cold asphalt crack-pouring waterproof adhesive and a preparation method thereof. The waterproof adhesive comprises the following components in portion by weight: 15 to 20 portions of modifier polymer, 2.0 to 3 portions of dispersant, 0.5 to 2.0 portions of stabilizing agent, 50 to 60 portions of heavy rubber asphalt, 1.5 to 2.0 portions of emulsifying agent, 15 to 18 portions of purified water, and 4 to 16 portions of curing agent. The waterproof adhesive has the advantages of simple preparation, reliability and excellent properties, can be widely applied to crack pouring for large traffics in cities and countryside, heavy loading high-grade roads, stress absorbing structural layers, waterproof and mist sealing layers or layer sealing mat coats and the like, and remarkably improves water proofing, skid resistance, flatness and abrasion resistances of the roads.

The invention discloses a PFS-PDMDAAC compound coagulant, a corresponding preparation method and an application method. The PFS-PDMDAAC compound coagulant is prepared as the following steps: the PFS dry powder or solution is arranged in a mixing reactor, and water is added to obtain a ferric-salt PFS solution which is stirred under normal temperature and a PDMDAAC colloid is added into the solution; the mixed solution is stirred under normal temperature till the PDMDAAC colloid is completely dissolved to obtain a stable PFS-PDMDAAC. The application of the PFS-PDMDAAC compound coagulant is to adopt the PFS-PDMDAAC compound coagulant for the coagulation treatment to raw water and waste water and sewage and the dehydration treatment to sludge or silt directly or after dilution with water by any proportion. The component structure and content scope of the invention are distinct to guarantee the capability and stability of the obtained PFS-PDMDAAC compound coagulant, and the materials on industrial manufacturing are available. The various functions of the PFS-PDMDAAC compound coagulant can be adjusted during water treatment with high adaptability so as to reduce cost, reinforce coagulation effect and dramatically enhance the quality of obtained water.

The invention discloses a method for preparing waste water processing materials of organic-inorganic composite bentonite which comprises, (1) disintegrating the alta-mud, passing through 100 mesh sieve, charging into the solution of cationic surface active agent, stiring 1-2 hours in water-bath, (2) charging AlCl3 solution into the suspending liquid, stirring 5-10 minutes, (3) while water-bath stirring, charging NaOH or Na2CO3 solutions into the suspending liquid, stewing for over 10 hrs at room temperature, (4) multitime washing, filtering, drying and grinding.

An oxidized polysilicate iron coagulating agent and its production are disclosed. The process is carried out by mixing activating silicic acid with low-polymerization degree with acid ferrous sulfate solution, adding into oxidant, additive and stabilizer, aging to obtain liquefied product or curing to obtain product. Its advantages include short period, better stability, simple process and good coagulating effect.

The invention discloses a high-stability sewage treating agent and a preparation method thereof. The sewage treating agent comprises following materials by weight: 10-15 parts of citric acid, 50-70 parts of sodium carbonate, 10-15 parts of magnesium carbonate, 8-20 parts of ferric trichloride, 7-20 parts of calcium oxide and 10-15 parts of polyacrylamide. The preparation method includes uniformly mixing the materials in sequence and stirring. Compared with the prior art, the sewage treating agent and the preparation method has characteristics of multifunction, high efficiency, environment protection, high sewage treating speed, short treating time, capability of efficiently removing various pollutants and toxic materials with broad spectrum, high adaptability to high dirty concentration, wide pH value range and wide temperature change range of sewage, capability of effectively reducing odour of various types of sewage, high degree of alkalization, low corrosion, convenience for production, no pollution in production processes, simple product package, convenience for transportation, and low comprehensive cost.

The invention provides an alkali-free liquid accelerator and a preparation method thereof and belongs to the technical field of concrete admixtures. The alkali-free liquid accelerator is prepared fromthe following raw materials: aluminum sulfate, ferrous sulfate, sodium fluoride, magnesium fluosilicate, precipitated hydrated magnesium silicate, diethanol amine and water. The alkali-free liquid accelerator has a good rapid hardening effect, can effectively shorten the coagulating and final setting time of concrete, and effectively improves the early strength and the later strength of concrete.The preparation method of the alkali-free liquid accelerator comprises the following steps: stirring water and precipitated hydrated magnesium silicate for 15-20 min at 40 DEG C; then adding ferroussulfate and sodium fluoride, and performing mixing and stirring for 8-15 min; after that, adding aluminum sulfate; performing heating up to 75-85 DEG C; after a reaction for 1 h, adding magnesium fluosilicate, and performing stirring for 20-40 min; and at last, adding diethanol amine, performing stirring for 18-25 min to prepare the alkali-free liquid accelerator. The preparation method is simple,the reaction is safe, and the prepared accelerator has good dispersibility.

The invention discloses a treatment method of wastewater containing grease. The pH value of the wastewater is adjusted to 7.0-8.5 by adding a pH regulator, a wastewater treatment agent is added and then evenly stirred and mixed, and supernate is recovered after precipitation. The treatment agent can effectively process the wastewater containing grease, and is low in cost and good in effect, and pollution to an ecological environment caused by the wastewater containing grease is relieved. The grease content of the wastewater after being processed by the method disclosed by the invention can be up to below 12mg / L.

The invention discloses a sampling and collecting system of SO3 in wet method desulphurization system tail flue gas. The system includes a probe for acquiring wet flue gas, a heating device connected with the probe and used for heating the wet flue gas, a dedusting device connected with the heating device and used for removing solid particles comprising dusts and the like in the flue gas, a condensing device connected with the dedusting device and used for condensing sulfuric acid steam in the flue gas, an examining device connected with the condensing device and used for examining whether the sulfuric acid steam collected in the condensing device reaches saturation and collecting the sulfuric acid steam in the flue gas when the saturation is realized, a drier connected with the examining device and used for removing water in the flue gas, an adjusting valve connected with the drier and used for adjusting the flow velocity of the flue gas to ensure that sampling is constant speed sampling, a vacuum pump connected with an outlet of the adjusting valve and used for pumping the flue gas, and a wet gas meter connected with an outlet of the vacuum pump and used for determining the flow, temperature and pressure of the flue gas and discharging the flue gas.

The invention relates to polyaluminum ferric chloride-paper mill sludge based polymer composite flocculant and a preparation method thereof. The preparation method includes the steps that a paper mill sludge raw material is directly subjected to dissolution and crude extraction through alkali liquor so that lignin can be obtained, a cation-type paper mill sludge based polymer is prepared through graft modification to be reacted with polyaluminum ferric chloride in a mixed mode, and accordingly the novel efficient composite flocculant is prepared. When the obtained flocculant is used for treating a simulated dye water sample and the dosing quantity is 5 mg / L, the chroma removing rate of disperse yellow water samples is stabilized to be above 95%, and meanwhile a good coagulation effect is achieved on both the water samples under the different acidity-alkalinity conditions and other various water samples. The process is simple, the number of needed devices is small, industrialized production and application can be facilitated, and waste recycling is achieved; moreover, the prepared flocculant is high in flocculation efficiency and wide in application range, and a good treatment effect can be achieved on common water body pollutants.

The invention discloses a reparation method of quartz fiber / chrome aluminum phosphate-based high temperature wave-transmitting material, characterized by comprising the following steps of: heating quartz fiber cloth at a temperature of 200-800 DEG C, cooling the quartz fiber cloth, and coating a protection coating on the surface of the quartz fiber cloth; mixing the chrome aluminum phosphate, curing agent, composite stuffing and water to prepare a chrome aluminum phosphate binding material; coating the chrome aluminum phosphate binding material on the surface of the quartz fiber cloth having the protection coating, drying at a temperature of 80-100 DEG C, and flatly laying the quartz fiber cloth; and processing more than two pieces of flatly laid and overlapped high temperature wave-transmitting material monomers by a mould press forming technique to obtain the product, namely, quartz fiber / chrome aluminum phosphate-based high temperature wave-transmitting material. The preparation method of the invention has the advantages of simple technique, good availability of raw materials and convenience for operation; besides, the prepared quartz fiber reinforced chrome aluminum phosphate-based high temperature wave-transmitting material has excellent moisture resistance, heat-resisting stability, mechanical property and dielectric property, so that the material is suitable for the use as a high temperature resistant wave-transmitting material.

The invention discloses a method for improving the carbon steel solidification structure by adopting high voltage electrical pulse. The method is that in a continuous casting tundish and a continuous casting mould or a moulded casting mould, a selected high voltage electrical pulse is applied to the carbon steel solidification process or before carbon steel solidifying; the high voltage electrical pulse has the following parameters: the pulsed voltage is from 1000V to 3900V, the pulse rate is from 0.50Hz to 1.5Hz, and the pulse capacitor is from 100 microfarad to 500 microfarad. The method is especially suitable for steel grades to improve large coarse grains in the solidification structure, developed dendrite and easy generation of composition segregation, can increase the nucleation rate of metal solidification, reduce dendrite, increase equiaxed grains, reduce the internal cracks, the shrinkage holes and the loose of the solidification structure, and improve the composition segregation; and the mechanical properties of the processed steel are improved.

An early-strengthening grouting material for the back liner of tunnel to resist against dispersing in water and denudation is proportionally prepared from powdered coal ash, slag, steel dregs, meta-kaolin, sodium fluorosilicate, stellite, hydroxyethyl methylcellulose, sand, water, and water glass solution. Its preparing process is also disclosed.

The invention discloses a composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion: 5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

The invention relates to a sewage treatment agent and a preparation method. The sewage treatment agent is prepared from the following raw materials in parts by weight: 10-15 parts of ferric trichloride, 5-10 parts of polyacrylamide, 10-15 parts of sodium chloride, 20-35 parts of bentonite, 10-15 parts of adsorbate, 10-15 parts of corn starch and 3-8 parts of sugar. The preparation method comprises the following steps: preparing the components according to parts by weight, grinding the bentonite and the adsorbate into powder, and uniformly mixing and stirring the ferric trichloride, the polyacrylamide, the sodium chloride, the bentonite, the adsorbate, the corn starch and sugar according to parts by weight. The sewage treatment agent is high in sewage treatment speed and relatively thorough in sewage treatment; the treated sewage can reach an effluent standard.

The invention relates to polluted air purification treatment technique field, which is an oil field wastewater treatment method. The steps of the method are firstly oxidation treatment then regular coagulation treatment. The method employs the synergic functions of ozone and ultrasonic to treat emulsion oil extraction wastewater, and then takes emulsion-breaking treatment to the oil, thus improving the coherence of pollutants and benefiting the subsequent coagulation treatment.

The invention relates to a high-early-strength-type alkali-free liquid accelerator and a preparation method and application thereof, and belongs to the technical field of additives of building materials. The accelerator is prepared from, by weight, 40-50% of polyaluminium sulfate, 5-10% of metakaolin, 5-15% of nanometer colloidal silica, 3-6% of alcohol amine, 1-4% of organic acid, 0.01-0.05% of athickening agent, 0.01-0.05% of a dispersion agent and the balance water. On the basis of meeting the national standard of <accelerators used for shotcrete> (GB / T35159-2017), the accelerator can effectively improve the compressive strength of cement mortar after one day, the compressive strength reaches 20 MPa or above, and the compressive strength of partial cement mortar can even reach 25 MPa or above after one day.

The invention relates to a compound type slurry curing agent for conducting curing treatment on waste slurry generated in geotechnical engineering (for example, investigation drilling, cast-in-place pile, anchorage engineering, trenchless construction and the like), as well as the sludge at the bottom of reservoirs, ditches, ponds, pools and the like. In the invention, the compound type slurry curing agent is prepared by adding and mixing fine sand, lime, industrial waste gypsum, fly ash and super absorbent resin in cement curing agent evenly according to a certain proportion. The slurry curing agent greatly improves the curing effect of slurry, reduces the use amount of cement and lowers the cost. Besides, by doping industrial wastes such as waste gypsum, fly ash and the like in cement, the pollution to the environment is abated, the recycle of wastes is promoted and favorable economic and social benefits are available.

The invention belongs to the field of motors, and discloses a bidirectional cooling oil-cooling motor which comprises a motor casing and a stator assembly. The stator assembly comprises a stator iron core and a stator winding. A cooling oil inlet is arranged in the motor casing. An annular oil groove runs through the yoke of the stator iron core. An axial cooling oil pipe is arranged between two adjacent coil groups. Each axial cooling oil pipe is provided with a cooling oil inlet and a cooling oil outlet. End caps are arranged on two ends of the motor casing. An oil discharge cavity is arranged in each end cap. Each end cap is provided with a cooling oil outlet. Heat-conducting glue is arranged on both ends of the stator iron core and a position corresponding to the annular oil groove. According to the invention, the axial cooling oil pipes are arranged in the motor groove; cooling oil comes into the motor from the middle of the motor casing and flows to the end parts of the stator winding; the end parts of the stator winding and the inner part of the groove can be cooled at the same time; and the whole stator winding is cooled.

The invention discloses a crystal nucleal procoagulant early strength agent for concrete and a preparation method thereof. The crystal nucleal procoagulant early strength agent is prepared from calcium nitrate, sodium silicate and a 18# early strength polycarboxylate water reducing agent, and is characterized in that the parts of the materials used during preparation by weight are as follows: 1.55parts of calcium nitrate, 1.24 parts of sodium silicate and 1 part of 18# early strength polycarboxylate. The crystal nucleal procoagulant early strength agent has the beneficial effects as follows:a hydration nucleation barrier of cement is greatly reduced, the procoagulant effect is obvious, and the early strength increase is better than that of the conventional early strength agent; on one hand, a templating agent in the synthesis process is provided for controlling the growth and the morphology of crystals, and on the other hand, together with C-S-H crystal nuclei in concrete, the crystal nucleal procoagulant early strength agent achieves a synergistic effect on early strength; the crystal nucleal procoagulant early strength agent not only can effectively improve the early strength of the concrete, has no negative effect on late strength, but also can effectively avoid corrosion on steel bars and the concrete, can avoid efflorescence and an alkali-aggregate reaction, and has theadvantages of good cement adaptability, small dosage sensitivity and the like; the preparation process is simple, and the cost is low.