32results about How to "No other pollution" patented technology

The invention relates to the technical field of surface treatment, in particular to an electrochemical burring device and a burring process thereof. The invention mainly performs the burring of a casting through the electrochemical process, and the burring device comprises an operating platform and a tool fixture capable of moving freely. The operating platform comprises an operating window for fetching the tool fixture, and an electrode connected with an anode. The tool fixture comprises a base fixture and a top cap fixture capable of being buckled with the base. Due to that the tool fixture is connected with a cathode, the top of the operating platform is connected with the anode, the end top of the red copper electrode is of 0.2-1 mm lower than the top surface of the through hole on the side deviated from a conducting device of the top cap fixture, the invention can greatly enhance the work efficiency, save the labor cost, and the alloy-steel casting is hardly of electric breakdown during the burring of the alloy-steel casting, thereby protecting the integrity of the alloy-steel casting.

The invention relates to a method for comprehensively utilizing chlor-alkali salt sludge, which comprises the following steps: mixing and filtering the chlor-alkali salt sludge and water to obtain a first filter cake and first filter liquor; adding alkali liquor to the first filter liquor, and filtering to obtain a second filter cake and second filter liquor; adding the alkali liquor to the second filter cake, and filtering to obtain a third filter cake and third filter liquor; calcining the third filter cake; adding hydrochloric acid to the third filter liquor, and filtering to obtain a fourth filter cake and fourth filter liquor; drying the fourth filter cake; adding the alkali liquor to the second filter liquor, and filtering to obtain a fifth filter cake and fifth filter liquor; calcining the fifth filter cake; adding the alkali liquor to the fifth filter liquor, and filtering to obtain a sixth filter cake and sixth filter liquor; mixing the sixth filter cake and the water into slurry, and carrying out the spray drying on the slurry; introducing CO2 into the sixth filter liquor, and filtering to obtain seventh filter liquor and a seventh filter cake; and calcining the seventh filter cake. The method respectively extracts various materials by adding acid and alkali to the chlor-alkali salt sludge and successively filtering, and has the advantages of simple production process flow, low equipment requirement and no other pollution after the treatment is finished.

The invention discloses a preparation method for magnesium nano-particles, which belongs to the technical field of nano-material preparation. The invention is characterized in that the MgO nano-particles are prepared by adopting the method of arc discharge in liquid nitrogen medium, consumable pure magnesium anode under the non-vacuum condition, wherein, an inner hole is opened at the end face of a cathode, and an anode is arranged in the inner hole at the end part of the cathode. Under the action of air flow, air is involved in a reaction zone of arc discharge, oxygen atoms are supplied for the generation of MgO, and the nano-particles of the MgO are synthesized by the arc discharge. The preparation method has the advantages of simple equipment and controllable process parameters. The industrial pure magnesium stick which is taken as raw material in preparation is abundant and the cost of the raw material is low. Mg nano-particles with the shapes such as non-regular flake, hexagonal flake, hexagonal lantern, nearly hexagonal structure or nearly spherical shape can be prepared, and the particles have no other pollutions.

The invention belongs to the technical field of biochemistry, and concretely relates to a hemolytic agent used for detecting glycosylated hemoglobin and a preparation method and an application thereof. The hemolytic agent comprises a phosphatic buffer solution, sodium chloride, phosphoric acid and an aqueous medium; and content of the phosphatic buffer solution in the hemolytic agent is 6-30 g / L.According to the hemolytic agent, the detection accuracy after sample processing is high, the sample processing time is 10-30 s, and compared with same kind reagents, the processing time is short; thehemolytic agent can directly substitute an imported original product hemolytic agent, same detection capability with the imported reagent can be achieved, medical cost is reduced, and medical cost isreduced for patients.

The invention relates to a method for leaching heavy metal contaminated soil by ultrasonic strengthening organic acid. The method comprises the steps of firstly, mixing organic acid and the heavy metal contaminated soil, and then leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid, wherein the ultrasonic frequency is 20-40kHz, the ultrasonic sound energy density is 20-50W / L, and the time for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is 5-20 minutes. After the method is used, the leaching effect of the heavy metal contaminated soil is improved, and the morphology distribution of the heavy metal is changed; the repair for leaching the heavy metal contaminated soil by the ultrasonic strengthening organic acid is an environment-friendly repair method; the method is simple in technology, short in leaching time and good in repairing effect.

The invention relates to quality grading water supply reforming method and system with a roof water tank and a building water supply pipe network. The reforming method comprises five steps of prophase preparation stage, metaphase water tank reforming stage, metaphase building water supply pipe network reforming stage, metaphase individual indoor water supply pipe network reforming stage and anaphase running management stage. The reforming system comprises a water chamber, a gas chamber, a purifying chamber and a building quality grading water supply pipe network system, wherein the water chamber comprises direct drinking, living and washing water source rooms; a building quality grading water supply main pipe network for direct drinking, living and washing is correspondingly connected with a quality grading water terminal and a water tank quality grading water discharging total opening respectively according to same function; the gas chamber comprises a unit modularized assembly type breathing bladder bag group; and the purifying chamber is provided with an assembly type unit modularized quality grading purification water supply unit. The invention prevents the secondary pollution of water and volatile waste of residual chlorine and has the effects of no cleaning, no water stop, full utilization, no waste, energy saving, emission reduction and quality grading water supply as required.

The invention relates to titanium gypsum used in cement, and a treatment method thereof by using stalk black ash. The method comprises processes that: 1, raw materials of titanium gypsum and stalk black ash with an ignition loss higher than 1% are adopted and mixed according to a weight ratio of 75:25; 2, the materials are blended and molded, wherein one part of the titanium gypsum with a pH value reaching 9 or higher than 9 is manufactured into brick-shaped blocks by using a brick machine, and the other part of the titanium gypsum is manufactured into balls by using a disc granulator; 3, thematerial is roasted by using a brick firing kiln or a rotary kiln, wherein a sintering temperature of the material reaches 760-860 DEG C. The method is advantaged in that: when the material is used independently as a cement coagulant or used in combination with dihydrate gypsum as a cement coagulant, the hydration strength of the cement can be improved, and the setting time of the cement can be appropriately shortened. At the respect of cement setting time shortening and strength improving, in terms of a blending ratio of the treated titanium gypsum and dihydrate gypsum, the higher the proportion of the treated titanium gypsum, the higher the improving extent of the strength, and the higher the shortening extent of the setting time. No secondary pollution is caused during a production procedure.

The invention belongs to the field of organic synthesis and discloses a method for catalyzing the etherification of benzyl alcohol compounds. The benzyl alcohol compounds are mixed with an alcohol compound A, and a solvent and tripentafluorophenylborane serving as a catalyst are added for a reaction at 60-120 DEG C for 4-6 hours to obtain benzyl alcohol etherified products; the alcohol compound Ais shown in the description, and R3 and R4 are aryl groups or alkyl groups or hydrogen atoms. In the reaction, tripentafluorophenylborane is utilized as the catalyst to achieve a dehydration etherification reaction for a series of benzyl alcohols, different alcohols can be subjected to mutually cross coupling to obtain ethers in the reaction, the same type of alcohol compounds can also be dehydrated by themselves to obtain ethers, and a stable and fast route is provided for synthesis of ether compounds. According to the method, the operation is simple, the reaction is highly efficient, and noother pollution is caused.

The invention provides a device and method for preventing blockage of a spray gun coke oven gas pipe of a blast furnace. An ultrasonic generator is connected with three ultrasonic probes loaded with ultrasonic transducers through a signal transmission line, and the ultrasonic probes extend into a gas pipe from the bottom of the spray gun coke oven gas pipe respectively. The ultrasonic probes are inserted into the spray gun coke oven gas pipe; the ultrasonic generator sends out a high-frequency signal, and the high-frequency signal is converted into ultrasonic waves through the ultrasonic transducers; the probes are in contact with the attachment liquid on the inner wall of a spray gun pipeline to perform ultrasonic irradiation so as to generate an ultrasonic cavitation effect and an ultrasonic calorifics effect; the ultrasonic generator is started once at an interval of certain time and runs for 10-15 minutes after each start. By adopting the device and method provided by the invention, organic matters in the pipe wall attachments can be degraded to volatilize some organic matters, thus the deposition of toxic and harmful organic substances in the pipeline is reduced, the blockage of the spray gun coke oven gas pipe is effectively prevented, and the discharge of industrial pollutants is reduced.

The invention discloses a modular water heating floor structure and a construction process thereof. The modular water heating floor structure comprises a first floor board and a second floor board, wherein the first floor board comprises first board bodies and first water pipes, the two ends of the first water pipes extend out of two adjacent sides of the first board bodies correspondingly, and afirst groove is formed in the side, corresponding to one extension end of each first water pipe, of each first board body; the second floor board comprises second board bodies and second water pipes,the two ends of the second water pipes extend out of two opposite sides of the second board bodies, one side of the second floor board is provided with first grooves, the other side of the second floor board is provided with second grooves in parallel, conceding grooves are formed in the first grooves and the second grooves, and the first water pipes and the second water pipes communicate throughconnecting pipes; the bottoms of the seams between the first floor board and the second floor board and the bottoms of the seams between the two adjacent second floor boards are detachably connected with waterproof belts correspondingly, and leveling assemblies are connected to the first floor board and the second floor board; and matched seam cover plates are arranged at the splicing positions between the first grooves and the second grooves in a covering closing mode. The modular water heating floor structure and the construction process thereof have the effect of improving the indoor floorheating decoration construction efficiency.

The invention discloses environment-friendly self-cleaning nano wall paint. The paint is prepared from nano titanium dioxide, silicon-fluorine materials, titanium dioxide, kaolin, epoxy resin, methyl cellulose, hydroxyethyl cellulose, a silane coupling agent, an emulsifying agent, a surfactant, a dispersing agent, an additive and purified water. The wall paint has good effects of adsorbing and decomposing pollutants, is not easy to adsorb dust, is convenient to clean and achieves the self-cleaning effect. Moreover, the invention further provides a preparation method of the environment-friendly self-cleaning nano wall paint, a special preparation process is adopted, the technical problems that nano titanium dioxide is easy to agglomerate and flocculate in a coating system are solved, the stability and anti-interference performance of the purification function of the nano titanium dioxide coating is significantly improved, an organosilicon fluorine material is used for coating the surface of nano titanium dioxide, and the prepared wall paint is excellent in hydrophobic property.

The invention provides a method for preparing battery-grade nickel sulfate by deeply removing sodium from refined nickel salt, which comprises the following steps: dissolving refined sodium-containingnickel salt, adding an ammonium sulfate solution, and carrying out freezing crystallization to obtain ammonium nickel sulfate crystals and a crystallization mother solution; respectively carrying outdifferent treatments on ammonium nickel sulfate crystals, washing the ammonium nickel sulfate crystals by using an ammonium sulfate solution, calcining and decomposing to form nickel sulfate, mixingand dissolving the nickel sulfate, water and an acid solution, and carrying out freeze drying to obtain the battery-grade nickel sulfate. According to the method, sodium can be effectively removed from the nickel salt, the recovery rate of nickel is high, and the obtained product is battery-grade nickel sulfate.

The invention provides a method for preparing MgO nanometer granular materials, belonging to the technical field of granular material preparation. The method is characterized in that under a non-vacuum condition, MgO nanometer granules are prepared by adopting methods of arc discharge and pure magnesium anode self-consumption in a liquid nitrogen medium, wherein the end face of a cathode is provided with an inner hole; an anode is arranged in the inner hole of the end part of the cathode for starting arc and discharging electricity, so as to gasify a magnesium rod to obtain magnesium atoms; moreover, the MgO nanometer granules are synthesized by utilizing a gaseous magnesium environment formed in the inner hole of the cathode after the anode is placed in the liquid nitrogen solution and by utilizing a low-temperature environment provided by liquid nitrogen. The method has the advantages of simple equipment and controllable technological parameters. As raw materials needed in the preparation are industrial pure magnesium rods, the method is rich in the raw materials and low in cost. A MgO nanometer granule prepared is in a spherical body, a spherical-like body, a cubic body or a cubic-like body, and causes no other pollution.

The invention provides a novel cement kiln semi-dry desulfurization system. The system comprises a No.1 cement kiln cyclone and a No.2 cement kiln cyclone, which are vertically arranged in sequence and are connected together by a pipeline, wherein a discharge pipe is arranged at the bottom of the No.2 cement kiln cyclone; the lower part of the discharge pipe is connected with a raw material silo, a lime slurry wet digestion tank, a lime slurry storage tank and a slaked lime water atomized spray system by a pipeline in sequence; the tail end of the slaked lime water atomized spray system is connected with a preheater arranged on the No.1 cement kiln cyclone by a pipeline. The novel cement kiln semi-dry desulfurization system has the beneficial effects that the system can achieve more than or equal to 70% of desulfurization efficiency, belongs to the semi-dry desulfurization technology, combines the advantages of a dry reactant injection method and the spray drying desulfurization technology, overcomes the defects of the dry reactant injection method and the spray drying desulfurization technology and can not cause other pollution; meanwhile, reactants are derived from hot raw materials, thus reducing the investment costs and operating costs of traditional desulfurization processes.

The invention provides a preparation method for hydrophobic nanometer titanium dioxide. The preparation method comprises the following steps: 1) adding nanometer titanium dioxide into distilled water accounting for 0.1 to 2% of the mass of nanometer titanium dioxide, uniformly mixing the above-mentioned components with stirring, then adding a silane coupling agent accounting for 0.1 to 0.5% of the mass of nanometer titanium dioxide, heating to a temperature of 80 to 100 DEG C and carrying out uniform mixing with stirring so as to obtain a mixture I; 2) adding a silicon-fluorine material accounting for 10 to 30% of the mass of the mixture I with slow stirring and continuing stirring until uniform mixing is realized so as to obtain a mixture II; and 3) adding an emulsifier accounting for 3 to 5% of the mass of the mixture II into the mixture II, carrying out high-speed emulsification at a temperature of 80 to 100 DEG C for 90 to 120 min and then carrying out cooling so as to obtain viscous nanometer titanium dioxide slurry, i.e., hydrophobic nanometer titanium dioxide. The invention further provides a nanoparticle super-hydrophobic self-cleaning wall paint containing hydrophobic nanometer titanium dioxide and a preparation method thereof. The nanoparticle super-hydrophobic self-cleaning wall paint has a good hydrophobic function, forms a stable contact angle of 150 DEG with water and a rolling contact angle of less than 5 DEG and has powerful and long-lasting self-cleaning capability.

The invention provides a method for preparing MgO nanometer granular materials, belonging to the technical field of granular material preparation. The method is characterized in that under a non-vacuum condition, MgO nanometer granules are prepared by adopting methods of arc discharge and pure magnesium anode self-consumption in a liquid nitrogen medium, wherein the end face of a cathode is provided with an inner hole; an anode is arranged in the inner hole of the end part of the cathode for starting arc and discharging electricity, so as to gasify a magnesium rod to obtain magnesium atoms; moreover, the MgO nanometer granules are synthesized by utilizing a gaseous magnesium environment formed in the inner hole of the cathode after the anode is placed in the liquid nitrogen solution and by utilizing a low-temperature environment provided by liquid nitrogen. The method has the advantages of simple equipment and controllable technological parameters. As raw materials needed in the preparation are industrial pure magnesium rods, the method is rich in the raw materials and low in cost. A MgO nanometer granule prepared is in a spherical body, a spherical-like body, a cubic body or a cubic-like body, and causes no other pollution.

The invention discloses a preparation method for magnesium nano-particles, which belongs to the technical field of nano-material preparation. The invention is characterized in that the MgO nano-particles are prepared by adopting the method of arc discharge in liquid nitrogen medium, consumable pure magnesium anode under the non-vacuum condition, wherein, an inner hole is opened at the end face ofa cathode, and an anode is arranged in the inner hole at the end part of the cathode. Under the action of air flow, air is involved in a reaction zone of arc discharge, oxygen atoms are supplied for the generation of MgO, and the nano-particles of the MgO are synthesized by the arc discharge. The preparation method has the advantages of simple equipment and controllable process parameters. The industrial pure magnesium stick which is taken as raw material in preparation is abundant and the cost of the raw material is low. Mg nano-particles with the shapes such as non-regular flake, hexagonal flake, hexagonal lantern, nearly hexagonal structure or nearly spherical shape can be prepared, and the particles have no other pollutions.

The invention relates to quality grading water supply reforming method and system with a roof water tank and a building water supply pipe network. The reforming method comprises five steps of prophase preparation stage, metaphase water tank reforming stage, metaphase building water supply pipe network reforming stage, metaphase individual indoor water supply pipe network reforming stage and anaphase running management stage. The reforming system comprises a water chamber, a gas chamber, a purifying chamber and a building quality grading water supply pipe network system, wherein the water chamber comprises direct drinking, living and washing water source rooms; a building quality grading water supply main pipe network for direct drinking, living and washing is correspondingly connected with a quality grading water terminal and a water tank quality grading water discharging total opening respectively according to same function; the gas chamber comprises a unit modularized assembly type breathing bladder bag group; and the purifying chamber is provided with an assembly type unit modularized quality grading purification water supply unit. The invention prevents the secondary pollution of water and volatile waste of residual chlorine and has the effects of no cleaning, no water stop, full utilization, no waste, energy saving, emission reduction and quality grading water supply as required.

The invention relates to a phase demodulating method and a device for identification of petroleum hydrocarbon pollutants. A controller outputs a control signal to a light source module in the device.A light source output by the light source module is irradiated into a sample cell in an acquisition module. A signal acquisition module collects lights stimulated by a measured sample and transmits the lights to a data conversion module which is in bi-directional connection with the controller. The phase demodulating method for the identification of the petroleum hydrocarbon pollutants includes: based on the principle of the fluorescence lifetime detection, time response characteristics of different petroleum hydrocarbon pollutants are established; according to the time response characteristics of the different petroleum hydrocarbon pollutants, oil products are identified by a double-channel light source and a double-channel detection. The phase demodulating method and device for the identification of the petroleum hydrocarbon pollutants has the advantages that through adopting an optical measurement method to identify the petroleum hydrocarbon pollutants, the identification speed is fast and no other pollution is produced; through adopting the double-channel light source structure, stable and sufficient light sources are produced, which is the premise of stable operation and accurate measurement of the device. The signal transmission between the channels is isolated and independent, thereby having extremely high measurement accuracy.

The invention discloses a process for adsorbing heavy metal cadmium in protein hydrolysate. The process mainly comprises the steps of adjusting the concentration of chromium in the protein hydrolysate, adjusting a pH value, preparing a composite adsorbent, adsorbing, separating and the like. The adsorbent adopted by the process disclosed by the invention is a polyethyleneimine modified carboxylation nano-crystalline cellulose and sepiolite composite adsorbent, and has the advantages of good effect of adsorbing heavy metal and hardly any side effects; the process for adsorbing the heavy metal cadmium in the protein hydrolysate is simple and feasible; in addition, the adopted adsorbent is easily removed, so no pollution is caused.

The invention relates to an environment deodorant containing microorganism strains and application of the environment deodorant, and belongs to the technical field of microorganism environmental governance. The environment deodorant is characterized by comprising 13-37% of microorganism strains, 6-17% of synergism components, 2-13% of essential oil, and 40-75% of distilled water. The environment deodorant containing the microorganism strains degrades and inhibits the microorganisms producing odor via exogenous function strains; a small quantity of synergism components and the essential oil in optimized compatibility and combination are prepared, and therefore, the environment deodorant can eliminate environment odor continuously without other pollution, be convenient in use and low in cost, have strong inhibiting function for pathogenic bacteria, and reduce diseases; at the same time, original odor is quickly absorbed, eliminated and hidden, the strength of releasing the odor in environment is reduced, the concentration of harmful substances is decreased, the method for processing is simple, investment on a device is small, energy consumption is saved, and deodorization effects are obvious.

The invention discloses a VOCs waste gas green treatment process capable of reducing carbon emission, which comprises the following steps: carrying out active dynamic membrane absorption treatment, circulating aqueous solution demolding treatment, biological carbon sequestration treatment, sludge treatment and the like on industrial VOCs waste gas to realize biological carbon sequestration in most of VOCs and reduce carbon dioxide emission, and has the advantages of low hazardous waste generation amount, high treatment efficiency, low energy consumption, environmental protection and the like. The hazardous waste treatment cost is low; the VOCs treatment system is low in energy consumption, low in operation cost, stable in operation effect and capable of stably achieving ultralow-concentration emission for a long time.

The invention provides an automatic treatment device for steel nail line discharging. The automatic treatment device comprises a machine body internally provided with a cleaning mechanism, a drying mechanism and a material collecting mechanism. The cleaning mechanism is located above the drying mechanism and communicates with the drying mechanism through a drying channel. The material collecting mechanism is located below the drying mechanism. The machine body is provided with a feeding port, a water outlet and a discharging port, the feeding port and the water outlet are connected with the cleaning mechanism and located on the two sides of the cleaning mechanism correspondingly, and the discharging port is located in one side of the material collecting mechanism. The automatic treatment device for steel nail line discharging is provided with the cleaning mechanism and the drying mechanism, steel nails can be dried after being cleaned, other pollution is avoided, and the steel nail cleanliness is improved.

The invention discloses an anhydrous chrome tanning process on the basis of fully considering water saving and reducing chrome discharge. Put the pickled leather into the tanning drum, add plastic balls and cationic oil in turn, start to rotate, then add chrome tanning agent, continue to rotate, then add alkali enhancer, continue to rotate, let stand overnight, and the next day the drum will be obtained. Chrome tanned leather. Using plastic balls instead of water as the medium for chrome tanning can not only ensure moderate mechanical action, but also play the role of a dispersion medium to complete the tanning process, which greatly avoids the generation of waste liquid containing chromium. When the plastic ball is used in the drum, it can increase the extrusion effect of the hide itself, promote the dispersion and penetration of the tanning material in the hide, and ensure the uniform concentration of the tanning material in the hide and between the hides; at the same time, the ball replaces As a solid lubricant, water is adsorbed on the surface of the hide, reducing the friction between the hide and the hide and between the hide and the drum, so as to ensure the safety of tanning; the sphere can also be used repeatedly, which has remarkable practicability.

The invention relates to titanium gypsum used in cement, and a treatment method thereof by using stalk black ash. The method comprises processes that: 1, raw materials of titanium gypsum and stalk black ash with an ignition loss higher than 1% are adopted and mixed according to a weight ratio of 75:25; 2, the materials are blended and molded, wherein one part of the titanium gypsum with a pH value reaching 9 or higher than 9 is manufactured into brick-shaped blocks by using a brick machine, and the other part of the titanium gypsum is manufactured into balls by using a disc granulator; 3, thematerial is roasted by using a brick firing kiln or a rotary kiln, wherein a sintering temperature of the material reaches 760-860 DEG C. The method is advantaged in that: when the material is used independently as a cement coagulant or used in combination with dihydrate gypsum as a cement coagulant, the hydration strength of the cement can be improved, and the setting time of the cement can be appropriately shortened. At the respect of cement setting time shortening and strength improving, in terms of a blending ratio of the treated titanium gypsum and dihydrate gypsum, the higher the proportion of the treated titanium gypsum, the higher the improving extent of the strength, and the higher the shortening extent of the setting time. No secondary pollution is caused during a production procedure.

The invention discloses a modular water heating floor structure and a construction process thereof. The modular water heating floor structure comprises a first floor board and a second floor board, wherein the first floor board comprises first board bodies and first water pipes, the two ends of the first water pipes extend out of two adjacent sides of the first board bodies correspondingly, and afirst groove is formed in the side, corresponding to one extension end of each first water pipe, of each first board body; the second floor board comprises second board bodies and second water pipes,the two ends of the second water pipes extend out of two opposite sides of the second board bodies, one side of the second floor board is provided with first grooves, the other side of the second floor board is provided with second grooves in parallel, conceding grooves are formed in the first grooves and the second grooves, and the first water pipes and the second water pipes communicate throughconnecting pipes; the bottoms of the seams between the first floor board and the second floor board and the bottoms of the seams between the two adjacent second floor boards are detachably connected with waterproof belts correspondingly, and leveling assemblies are connected to the first floor board and the second floor board; and matched seam cover plates are arranged at the splicing positions between the first grooves and the second grooves in a covering closing mode. The modular water heating floor structure and the construction process thereof have the effect of improving the indoor floorheating decoration construction efficiency.

The invention discloses a compound bacterial agent for poultry and livestock manure deodorization and a preparation method thereof, which relates to the field of microbial application. Based on chemical deodorization technology, the cost is high, the reaction is complicated, and secondary pollution occurs. posed by a single question. The poultry manure deodorizing composite bacterial agent of the present invention includes five kinds of bacteria including Bacillus amyloliquefaciens, Alcaligenes, Arthrobacter, Streptomyces and Micromonospora; Culture medium, activator, protectant. The beneficial effect of the invention is that: the treatment speed and utilization rate of the feces are improved, and the deodorizing effect is rapid and lasting.

The invention relates to magnesium-loaded biological carbon as well as a preparation method and application thereof. The preparation method of the magnesium-loaded biological carbon comprises the following steps: immersing crushed agricultural and forestry wastes into a magnesium chloride solution; carrying out ultrasonic treatment; after drying, firing under anaerobic conditions. According to the magnesium-loaded biological carbon provided by the invention, an adsorption capability of pure biological carbon on cadmium can be improved and arsenic can also be effectively adsorbed. The magnesium-loaded biological carbon not only can be used for purifying cadmium and arsenic polluted water bodies, but also can be used for passivating the arsenic and the cadmium in soil so that the mobility and effectiveness of the cadmium and the arsenic are reduced.