107results about How to "Solving Disposal Problems" patented technology

The invention provides a cleaning treatment method of dying industrial acidic wastewater. After purified by measurements of neutralization, decolouring, oxidation, condensation, separation and the like, wastewater is reused as synthetic bottom water and dye filter cake washing water for dye production, thus avoiding discharge of a lot of colored wastewater with high COD value during a traditional dye production process. By a method of using a by-product ammonium sulfate or ammonium chloride, generation of calcium sulfate is avoided during neutralization of wastewater by the use of lime. Therefore, the dangerous solid waste calcium sulfate slug treatment problem is solved, and the cleaning production purposes of water saving, emission reduction and synergy are reflected.

The invention relates to a method for preparing active carbon with high acid group content by using excess sludge in an urban sewage treatment plant and corn cobs, which comprises the following steps: impregnating the dried and ground sludge and corn cobs for a period of time by using a given amount of zinc chloride solution; after drying, putting the mixture into a muffle furnace for carbonization and activation at a certain temperature; and finally, washing and drying to obtain an excess sludge and corn cob mixture-based active carbon. The prepared active carbon has good adsorption property and high acid group content. The active carbon prepared by the method has the characteristics of cation exchange and strong hydrophilcity, and easily absorbs polar substances and metal ions.

The invention relates to a method for removing trace medicine pollutant and improving the water quality by using sludge-based activated carbon to catalyze ozone for oxidation, belonging to the field of water supply or sewage advanced treatment technology. The catalyst sludge-based activated carbon takes the excess sludge of a municipal sewage plant as main raw material and is prepared by adding corn core biomass and activating agent zinc chloride into the main raw material. The activated carbon catalyst prepared by the method greatly reduces the generation cost of the technology of catalyzing the ozone for oxidation. The sludge-based catalyst has larger specific surface area, developed aperture and rich surface functional group. Due to the characteristics, the sludge-based catalyst is not only remarkable in the activity in the process of catalyzing the ozone to decompose, but also is very remarkable in the effect of removing the trace medicine in the water catalyzing the ozone for oxidation. The technology for catalyzing the ozone for oxidation by the sludge-based activated carbon can achieve the effects of removing more than 99% of trace medicine. The advantages are beneficial to the production and application of the technology for catalyzing the ozone for oxidation by the sludge-based activated carbon in the field of removing the trace medicine pollutant in drinking water or sewage in a strengthened way, thus providing an effective method for the strengthened removal technology of the trace medicine pollutant in the water.

The invention discloses a preparation method of activated rice husk ash. The method comprises the following steps: 1) hydrochloric acid immersion: immersing the rice husk ash with 3mol / L hydrochloric acid for 2-6 h; 2) washing and draining: washing to neutral and draining; 3) high temperature treatment: sintering at 500-600 DEG C for 2-8 h to obtain the activated rice husk ash. The method of the invention is simple, and prepared activated rice husk ash has large specific surface area, strong adsorption capability and low cost. The invention also discloses application of the prepared activatedrice husk ash to purification of biodiesel. Applied to purification of biodiesel, the activated rice husk ash has advantages of simple equipment, easy operation, zero washing, waste water discharge reduction and environmental pollution reduction.

The invention discloses a treatment method and device for oil sludge. The method comprises the following steps: mixing and pressing oil sludge, charred coal, coking flash ash and tar residue into a ball, mixing coking coal into the coal ball to perform coking, treating the oil sludge through a coking oven, and ensuring that oil in the oil sludge is converted into coal gas for utilization, components, such as iron and calcium, are cured into coke, enter a blast furnace with the coke and are reduced in the blast furnace and fused into molten iron to be utilized, so as to realize completely harmless disposal. The treatment method is simple, and harmless disposal of oil sludge is realized; the problem that oil sludge water treatment is difficult to dispose and high in disposal cost is solved;the method meets the national policies on environmental protection and cyclic economy, and has good social benefit and environmental protection and energy saving benefit.

The invention relates to a preparation method of aluminum sludge ceramsite. The preparation method comprises: drying and grinding aluminum sludge with auxiliary materials such as glass powder, egg shell and fly ash; mixing and stirring the materials uniformly; then adding water as a binder; carrying out mixing granulation to obtain green ceramsite; and then drying, preheating, sintering and cooling the green ceramsite. According to the preparation method provided by the invention, the aluminum sludge and glass powder are adopted to replace clay to provide Al2O3 and SiO2, so that the manufacturing cost of ceramsite is remarkably reduced. The manufactured ceramsite has the advantages of large specific surface area, rough surface, high porosity, few dissolved substances, high water absorptionperformance, low dissolution rate and the like, can be used for large-scale disposal of aluminum sludge in water supply plants, realizes waste utilization, and saves the disposal cost of aluminum sludge. The aluminum sludge ceramsite is widely used in secondary treatment and advanced treatment of sewage, treatment of building reclaimed water, treatment of industrial wastewater, and treatment sponge city rainwater, and has a high market application prospect.

The invention relates to a technique for reducing the content of cadmium and lead in soil. Dewatered residual sludge of a domestic sewage treatment plant is applied to a to-be-repaired pollution site, the to-be-repaired pollution site is turned over, a soil promoter for promoting cadmium and lead absorption and accumulation of edible amaranth is applied in the turn-over process, different types of edible amaranth are planted, the edible amaranth is reaped, and the content of cadmium and lead in stems and leaves of the edible amaranth is analyzed so as to screen out the edible amaranth with excessive absorption and maximal accumulation on cadmium and lead. The edible amaranth with excessive absorption and maximal accumulation on cadmium and lead and the promoter are obtained in a screening manner and are used for repairing the polluted industrial site, the repaired industrial site can be used as a construction land, a land for greening and a part of non-edible farmland, and meanwhile, the problems of treatment and disposal of the residual sludge generated by the sewage treatment plant are partially solved.

The invention discloses a community household waste pretreatment and temporary storage workstation which comprises a first isolation bin (1) and multiple rows and multiple columns of waste storage boxes (2) with horizontal moving and lifting functions. Liquid leakage and storage structures (201) are arranged in the waste storage boxes (2); a feeding structure (101) is arranged on one side of the upper part of the isolation bin (1); a crushing device (3) is arranged in the feeding structure; and a disinfectant and preservative spraying device is arranged under the crushing device. The communityhousehold waste pretreatment and temporary storage workstation is further provided with a waste storage box outward-transporting structure (102), a lifting device (5) for lifting a classified waste classifying and holding device (4), and a turnover device (6). The community household waste pretreatment and temporary storage workstation provided by the invention has a joint function of waste classifying, throwing, large-scale temporary storing, has a crushing function, has multiple anti-ferment corrosion and mildew measures, is beneficial to reducing odor generation and emission and preventingfoul-smelling liquid from flowing disorderly, and is clean and environmental-friendly; meanwhile, pretreatment can be provided for a household waste classifying vehicle, so that classification operation can be conveniently carried out; and the problem of inconvenience in treating large waste at present can be solved.

The invention discloses a surplus sludge loaded photocatalyst. The photocatalyst is loaded on a surplus sludge carrier and is calcined and grinded to obtain the surplus sludge loaded photocatalyst which can be used for effectively degrading formaldehyde and organic wastewater. The invention discloses a preparation method of the surplus sludge loaded photocatalyst. The preparation method is characterized by comprising the following steps: weighing surplus sludge and a TiO2 photocatalyst according to a mass ratio of 6 to 1; uniformly mixing to obtain a mixture and putting the mixture into a muffle furnace with the temperature being 540 DEG C to be calcined; and grinding into powder or grains. The invention further discloses an application of the surplus sludge loaded photocatalyst. The application is characterized by comprising the following steps: putting matters to be graded into a reactor; adding the surplus sludge loaded photocatalyst; turning on an ultraviolet lamp for irradiating to degrade the formaldehyde and recycling the photocatalyst. The surplus sludge loaded photocatalyst disclosed by the invention is high in loading rate, not easy to fall off, high in photocatalysis efficiency and stable in effect; the preparation method and the application disclosed by the invention are simple and convenient, and low in cost, and can be popularized and applied in air purification and organic wastewater treatment.

The invention relates to sintering flue gas desulfurization wastewater treatment system and method for sintering finished ores. A wastewater whirlcone, an adjusting valve and a wastewater whirlcone feeding pump are respectively connected with a recovered water tank, and the wastewater whirlcone feeding pump is connected with the wastewater whirlcone and the adjusting valve. The other end of the wastewater whirlcone is connected to a wastewater tank, and a flowmeter is connected between the wastewater whirlcone and the wastewater tank. The wastewater tank is connected with a CaCl2 water solution tank and a wastewater pump, and the wastewater pump is connected to a nozzle through a pipeline. The treatment method is realized as follows: recovered water in the recovered water tank of a sweetener is transmitted to the wastewater whirlcone through the wastewater whirlcone feeding pump, one part of the recovered water in the wastewater whirlcone is returned to the recovered water tank, and the other part of the recovered water enters in the wastewater tank through the flowmeter to become wastewater, and the opening of the adjusting valve is adjusted so as to control the desulfurated wastewater. By adopting the system and the method, the invention realizes recycle of sintering flue gas desulfurization wastewater, energy saving and emission reduction, investment saving and running costreduction.

The invention relates to a treatment method of salt mud wastes generated in chlor-alkali industry. The treatment method comprises the following steps: washing salt mud liquid with water to obtain supernatant liquid and concentrated salt mud liquid; performing pressure filtration dehydration on the concentrated salt mud liquid to obtain filtrate and dehydrated salt mud; grinding and sieving the dehydrated salt mud to obtain powder salt mud. After the salt mud liquid is treated according to the method provided by the invention, the salt mud liquid can replace part of commercial desulfurizing agent quicklime powder and be used for semi-dry desulfurization of boiler flue gas. The treatment process of the salt mud liquid in the method provided by the invention is short, the method is simple andeasy to operate, the treatment cost is low, and no 'three wastes' are discharged in a treatment process, so that the problem of treating the salt mud liquid in the chlor-alkali industry is solved, and treatment of wastes with processes of wastes against one another is realized; by using the desulfurizing agent, the original desulfurization process does not need to be changed and the desulfurization cost of the boiler flue gas is reduced.

The invention provides a cooperative disposal method of hazardous waste incineration residues and solid wastes, ceramsite and an application of the ceramsite, and belongs to the field of resources andenvironment. The disposal method provided by the invention comprises the following steps: mixing hazardous waste incineration residues and solid wastes, granulating the obtained mixture, and sequentially carrying out drying and calcining to obtain the ceramsite. According to the invention, the hazardous waste incineration residues and the solid wastes are used as raw materials for preparing the ceramsite by cooperative disposal, dioxins and organic matter in the hazardous waste incineration residues and the solid wastes are decomposed, and heavy metals contained in the hazardous waste incineration residues and the solid wastes are reduced and solidified, so that the disposal problem of hazardous waste incineration residues and solid wastes is solved, a large amount of landfill land is saved, and cost of comprehensive disposal is significantly reduced. New hazardous wastes are not generated, burden on the ecological environment is reduced, and the method has remarkable economic and environmental benefits.

The invention relates to a sea dredged silt dewatering and solidifying treatment integrated device and method.Dredged silt is sucked onto a dredger, the dredged silt is conveyed into a silt-water separating device after the dredger arrives at a sea treatment platform, centrifugal dewatering is carried out on the dredged silt through the silt-water separating device, tail water generated after dewatering is conveyed to a tail water treatment device to be treated, concentrated silt is conveyed to a solidifying device, a solidifying material in a solidifying material tank is conveyed to the solidifying device together with the concentrated silt, the concentrated silt and the solidifying material are fully stirred to obtain solidified soil, and the solidified soil is transported to a reclamation area through a silt transporting boat for reclamation.The sea dredged silt dewatering and solidifying treatment integrated device and method are good in dewatering and solidifying effect, high in dredged silt treatment efficiency, low in dredged silt treatment cost and high in automation degree; besides, the silt does not fall to the ground, no stock dump is needed and no secondary pollution is caused in the whole working process, the treated dredged silt reaches the standard and can be directly applied to engineering backfill, no secondary argillization happens, and disposal and efficient reutilization of the dredged silt are effectively achieved.

The invention relates to the field of coal chemical engineering wastewater treatment, and discloses a method for producing sodium carbonate with salt-containing wastewater and CO2. The method comprises the following steps: (1) performing separation treatment on the salt-containing wastewater so as to remove divalent salts in the salt-containing wastewater and obtain mono-valent salt enriched salt-containing water; (2) in the presence of an accelerant and CO2, performing carbonization treatment on the mono-valent salt enriched salt-containing water so as to obtain a sodium bicarbonate precipitate and carbonization mother liquor; (3) performing calcining treatment on the sodium bicarbonate precipitate, thereby obtaining sodium carbonate. By adopting the method disclosed by the invention, CO2 discharged from coal chemical industry production can be successfully used in the salt-containing wastewater treatment process, and besides the difficulty in treating NaCl with a low additional value in the salt-containing wastewater, and great carbon emission reduction burden can be effectively solved, certain economic benefits can be made, and effective technical methods for achieving the purpose of zero emission of the salt-containing wastewater can be provided for enterprises of coal chemical industry and the like.

The invention provides a food waste composting method and a rural waste classification method using the same. The classification method comprises the steps of dividing rural waste into food waste and fuel waste, and according to the characteristics of the waste, using the food waste for preparing fertilizer and preparing the combustible waste into RDF fuel, wherein the preparation of the food waste into fertilizer comprises the steps that aerobic primary fermentation is performed on the waste, then a primary fermentation product is adjusted, and secondary fermentation is performed by implanting earthworms in the primary fermentation product; after the secondary fermentation, food waste is quickly decayed; in the RDF fuel production process, dry and wet separation, natural air drying, and mixing with dry biomass methods are adopted to deal with the waste, thereby reducing energy consumption. Compared with the current waste disposal methods, the food waste composting method and the rural waste classification method using the same, provided by the invention, make full use of the waste, turn the waste into useful fertilizer, and have the advantages of short period of waste composting, good fertilizer effect, low consumption in preparing fuel from the waste.

The invention provides wet-mixed mortar adopting nickel ore sand and ardealite. The wet-mixed mortar is formed by mixing and stirring four parts: sand, a cementitious material, an additive and water,wherein the sand comprises the following three parts in parts by weight: 300-700 parts of the nickel ore sand, 350-800 parts of yellow sand and 100-400 parts of river sand; the cementitious material comprises the following ingredients in parts by weight: 160-280 parts of cement, 50-110 parts of coal ash and 30-80 parts of the ardealite. The property of the wet-mixed mortar prepared in the invention can reach the property of wet-mixed mortar prepared from common sand, the material cost can be obviously lowered, traditional mortar materials are saved, the comprehensive utilization of nickel slags and ardealite can be achieved, and the treatment problems are solved.

The invention provides a cascading waterfall waterscape structure on an artificial stacked mountain and a construction method of the cascading waterfall waterscape structure, belonging to the field of a garden engineering technology, and aiming at solving the problem that in the existing cascading waterfall waterscape engineering, water leakage is caused due to the settlement of the artificial stacked soil body, so that the quality of the engineering can be influenced. The cascading waterfall waterscape structure comprises a pool body and a riverbed which are connected with each other; the artificial stacked mountain sequentially comprises a base layer, a common planting soil layer and a high-quality planting soil layer from bottom to top, wherein the base layer is built by construction waste which does not contain pollutant and radioactive substances. The construction method comprises the steps of 1, stacking and tamping the base layer, the common planting soil layer and the high-quality planting soil layer of the artificial stacked mountain in a layered way; 2, laying a middle coarse sand cushion layer, a geosynthetic clay liner and a plain concrete cushion layer from bottom to top layer by layer at the position of the pool body to build the pool body; 3, laying a middle coarse sand cushion layer, a geosynthetic clay liner and a plain concrete cushion layer from bottom to top layer by layer to form the riverbed; 4, building a reinforced concrete retaining wall I at the part where the pool body is connected with the riverbed; 5, building at least one reinforced concrete retaining wall II in the riverbed.

The invention discloses a fly ash drying machine. The fly ash drying machine comprises a drying kiln which is arranged in an inclined mode. The high end of the drying kiln is a feed end, and the low end of the drying kiln is a discharge end. A riding wheel device is arranged on the portion, close to the feed end, on the drying kiln. A riding wheel blocking device is arranged on the portion, close to the discharge end, on the drying kiln. A transmission device is arranged in the middle of the drying kiln. A heating device is connected to the feed end of the drying kiln. A discharge device is arranged at the discharge end of the drying kiln. The discharge device is connected with a cyclone separation device which is connected with an induced draught fan. Unique design is adopted for the fly ash drying machine according to the characteristics of fly ash, and the pollution and treatment problem of fly ash is solved; meanwhile, waste fly ash is turned into wealth, and economic benefits are increased.

The invention relates to a continuous casting bleed-out accident automatic disposal method based on liquid level automatic control. The method is characterized by comprising the following steps of 1,automatic monitoring and precise judging of bleed-out accidents; 1.1, monitoring before triggering of the bleed-out accidents; 1.2, judging of the bleed-out accidents based on liquid level control; and 2, automatic disposal after the bleed-out accidents. When the bleed-out accidents happen, the main phenomenon is that as a shell of a slab behind a crystallizer is torn, a lot of molten steel leaksquickly, so that the molten steel liquid level in the crystallizer is decreased quickly. According to the technical scheme, whether the bleed-out accidents happen or not is judged accurately by comparing the specific value of the liquid decreasing speed and the normal pulling rate and associate recognition with key factors such as a lower limiting value of the liquid level of the crystallizer skillfully, and the bleed-out accidents and abnormal accidents in other crystallizers are differentiated precisely.

The invention belongs to the technical field of waste treatment and provides a chemical disinfection harmless treatment technology for medical waste. The chemical disinfection harmless treatment technology for the medical waste comprises smashing treatment and disinfection treatment of the medical waste and comprises the steps that the medical waste is collected and transported through transportation vehicles, the medical waste conveyed by a conveyer belt is shifted to a lifting frame of an overturning feeding device to be lifted and fed through a circulation box; the medical waste is fed into a mixing feeding hopper through the lifting frame, and meanwhile radioactivity detection is conducted on the medical waste; the medical waste is processed into medical waste residues through fine smashing, and PH value monitoring is conducted when second-grade fine smashing is conducted; and finally, the medical waste residues are transported through dedicated vehicles to a waste plant for incineration treatment. The chemical disinfection harmless treatment technology for the medical waste comprises smashing treatment and disinfection treatment of the medical waste has the advantages of being low in investment, low in operation expense, less in pollutant discharge, high in automatic control level and the like. The chemical disinfection harmless treatment technology for the medical waste is high in automation degree, greatly lowers the treatment cost of the medical waste, solves the medical waste treatment problem of Ningbo City and has good application and popularization value in the industry.

The present invention provides a membrane-technology medical wastewater treatment method and a membrane-technology medical wastewater treatment apparatus with ultraviolet ray disinfection, and belongs to the technical field of wastewater treatment. The method solves technical problems that sludge is easily produced in existing wastewater treatment, a wastewaster treatment apparatus has a large occupied area, and the like. The medical wastewater treatment method provided by the present invention comprises: a. pretreatment: putting the wastewater into a decomposition tank, and using an anaerobic fermentation method to treat the wastewater; b. aerobic treatment: putting the wastewater treated in the step a into an aeration tank, and using an aeration method to enable full contact between air and the wastewater; c. membrane module treatment: putting the wastewater treated in the step b into a membrane module treatment tank, using a membrane-bioreactor to filter and intercept suspended substances in the wastewater, and performing degradation on organic substances and oxidizable substances in the wastewater; and d. ultraviolet disinfection, emission, and the like. The present invention further comprises an apparatus for implementing the method. According to the present invention, the medical wastewater treatment method is good in water discharge effect, the suspended substances are smaller than 10 mg / L, ultraviolet sterilization is utilized, no secondary pollution is produced, and therefore, the method is safe in operation, reliable, and low in production, operation and maintenance cost.

The invention discloses a carbon dioxide blasting device. The device comprises an outer pipe, a short sealing cover is arranged at one end of the outer pipe, a long sealing cover is arranged at the other end of the outer pipe, an energy release groove is formed in the long sealing cover, the long sealing cover and the short sealing cover are connected with the outer pipe through threads, one end of a liquid filling pipe penetrates through the short sealing cover and extends into the outer pipe, one end of an exhaust pipe penetrates through the short sealing cover to communicate with the interior of the outer pipe, a thermal excitation device is arranged in the outer pipe, the positive electrode and the negative electrode of the thermal excitation device are electrically connected with a starting power supply through wires respectively, and a switch is arranged on the starting power supply. A carbon dioxide blasting method comprises the steps of drilling a cracking hole, installing the carbon dioxide blasting device, filling liquid carbon dioxide, carrying out blasting and carrying out disposing. According to the carbon dioxide rock breaking device and method, the safety and utilization rate of the carbon dioxide blasting device are improved.

The invention discloses a resourceful treatment method of chromium-containing aluminum mud. The resourceful treatment method comprises the steps that 1, water is added to the chromium-containing aluminum mud for mixing, and a chromium-containing (VI) aqueous solution and an aluminum-containing (III) filter cake are obtained through heating, dissolution and filtration; 2, the chromium-containing (VI) aqueous solution is subjected to electro-reduction to obtain a chromium-containing (III) aqueous solution; 3, the chromium-containing (III) aqueous solution is subjected to bipolar membrane electrodialysis treatment to obtain a NaOH solution and a chromic acid solution; 4, the NaOH solution in the step 3 is concentrated by adopting membrane distillation to obtain clear water and a concentrated NaOH solution, and the clear water is reused in the water-dissolution process in the step 1; 5, the aluminum-containing filter cake in the step 1 is dissolved in the concentrated NaOH solution in the step 4, heating reaction is performed, filtering separation is performed to obtain a NaAlO2 solution. The resourceful treatment method treats aluminum mud solid waste and achieves resource recycling of chrome and aluminum in the solid waste.

The invention discloses an inorganic mixture prepared by a lime dried sludge. The lime dried sludge product is mixed with cementing materials such as fly ash, lime, cement and the like for stabilizing fine-grained soil to obtain a mixture, the prepared mixture is used for pavement sub-bases of second level and below second level roads or city sub-arterial roads and lower level roads, and replaces a common inorganic mixture. Performance indexes of the lime dried sludge are that: the effective calcium and magnesium content is greater than 20%, the content of particles with the particle size of 5 mm or less is greater than 65%, and the moisture content is 20% to 40%. The inorganic mixture provided by the invention can consume the city dried sludge with large scale, solves sludge disposal problem, and prevents secondary pollution; the inorganic mixture has good mechanical and durability properties, and can meet application requirements of the second level and the lower level road sub-bases; and the inorganic mixture as city solid waste has much lower raw material price than natural stone material, and thereby reducing production cost.

The invention provides a composite biological soil conditioner, and a preparation method and application thereof, belonging to the field of biotechnology. The composite biological soil conditioner provided by the invention can solve the problems that charcoal is alkaline and is limited in saline-alkali soil improvement, antagonism exists between bacterial manure and indigenous microorganisms and the like in the preparation of conventional composite soil conditioners. According to a technical scheme in the invention, the composite biological soil conditioner comprises the following components in parts by weight: 70-80 parts of modified charcoal and 20-30 parts of arbuscular mycorrhizal fungus bacterial fertilizer. The composite biological soil conditioner is prepared through the steps of preparing the modified charcoal, preparing arbuscular mycorrhizal fungus bacterial fertilizer, conducting mixing and the like, and is used for improving light and medium saline-alkali soil. The modifiedcharcoal and the arbuscular mycorrhizal fungus bacterial fertilizer produce a synergistic effect; and the charcoal can directly improve the physicochemical properties of saline alkali soil, reduce the salinity of surface soil, provide nutrition sources and refuges for microorganisms and ensure the survival rate of microorganisms in the arbuscular mycorrhizal fungus bacterial manure, so the bacterial manure is used for improving the salt tolerance of plants, promoting plant growth and improving the saline alkali soil.

The invention provides a black-odor riverway ecological transformation method utilizing building rubbish reclaimed materials and sludge. Building rubbish fine aggregates and solidified sludge are combined to manufacture riverway tunnel bottom composite seepage-proofing materials to be paved at a riverway protection slope and the tunnel bottom; building rubbish rough aggregates are used for manufacturing prefabricated porous vegetation concrete blocks; after being solidified, building rubbish fine aggregates and riverway sludge are combined to manufacture green planting soil to serve as planting base materials; building rubbish fine aggregates and riverway sludge are used for prepaing unfired landscape / water purification ceramsite; building rubbish recovery steel is used for manufacturing prefabricated porous vegetation concrete block fixing parts; and large building rubbish is screened to be shaped to serve as building block materials of a side slope platform or protection feet. By means of the method, building rubbish reclaimed materials and riverway sludge are fully utilized, ecological reasonable transformation is carried out on black-odor riverway side slopes, riverway tunnelbottoms and other positions, the water quality of black-odor riverways is improved, meanwhile, the usage level of stone, cement and other traditional building materials is reduced, solid-waste resource utilization is completed, and remarkable economic and ecological benefits are achieved.

The invention discloses a garden waste treatment device and a processing and utilizing method, and belongs to the technical field of garden waste recovery. The device comprises a large pulverizer, a small pulverizer, a storage box, a compost treatment device and an organic fertilizer manufacturing device. The processing and utilizing method comprises the following specific steps: S1) constructinga garden waste disposal base, and transporting recycled and collected garden waste to the disposal base through a truck; S2) airing and crushing the waste, adding microbial strains, and carrying out composting operation; S3) adding a mixed material, selecting and controlling the oxygen supply amount, the water content, the carbon-nitrogen ratio, the pH value and the composting temperature condition of the compost, and carrying out fermentation operation; and S4) processing the fermented waste by using an organic fertilizer manufacturing device to obtain the organic fertilizer. In the invention, the garden waste is converted into available soil substrate by using a microbial fermentation technology, wherein the soil substrate is used as a base fertilizer of the garden plants, so that the plants can be better produced.

The invention discloses an aerobic fermentation-sorting recycling method for household garbage, and the aerobic fermentation-sorting recycling method comprising: spraying an aerobic fermentation promoter in the household garbage, carrying out aerobic fermentation, sorting fermented composted materials, and finally carrying out post-treatment on the sorted different materials. According to the process system disclosed by the invention, full-recycling of the household garbage is realized, totally-closed purification of the waste gas of a treatment field is realized, the wastewater is subjected to full-circulation treatment, the zero emission of the wastewater is realized, and the odor of the household garbage treatment field is eliminated; and an aerobic fermentation bin or the whole treatment field is in a semi-underground mode or even an all-underground mode, so that the situation that the garbage treatment field is dirty and smelly is completely changed.

The invention relates to the field of environmental protection, in particular to a process for treating mixed waste salt through a chemical oxidation method. The process comprises the steps that wastesalt slurry is formed firstly; solid salt and dissolved salt are in a dissolution-crystallization equilibrium state, and toxic substances contained in the waste salt are further scattered in water; then, a large amount of insoluble organic pollutants are separated with a layering technology, and the operation load of chemical oxidation is reduced; the usage amounts of oxidizing agents, additivesand catalysts are reduced; and next, residual organic pollutants are removed under the effect of magnetic chemical oxidation catalysts completely. According to the process, evaporation and concentration of waste water are not required, and high-temperature calcination is not required, either; the energy consumption of the process is low, and the process is suitable for treating different kinds ofmixed waste salt, and is high in applicability; the problem for treating the waste salt in the chemical industry, pesticide industry, pharmaceutical industry, dye industry and other industries can besolved, and the process is a waste salt harmless treatment method with low investment and energy consumption.