355results about How to "Realize resource processing" patented technology

The invention provides a method for resourceful treatment of restaurant garbage, which is characterized in that the restaurant garbage is completely degraded after treatment with the working procedures of oil separating, preliminary selecting, mechanical crushing, hydraulic pulping, slurry blending, anaerobic fermentation and oxygen-control composting, finally the marsh gas is decomposed via anaerobic digestion and is utilized as energy after desulfurization treatment; the high-quality organic manure is produced from the biogas residues via oxygen-control composting; the separated oil can be recycled as the regenerated industrial raw oil; the wastewater generated in the treatment process can be recycled, and finally the redundant wastewater reaching the standard is discharged after biochemical treatment; and the odor generated by the garbage in the treatment process is directly discharged after reaching the standard via biofiltration treatment, thus the restaurant garbage can be transformed into the clean regenerated energy of electric power and the pollution-free organic manure to completely realize resourceful treatment of restaurant garbage. The resourceful treatment of restaurant garbage has the advantages of innocuity, no peculiar smell, no secondary pollution during the treatment process and realization of harmless and resourceful treatment of restaurant garbage.

The invention discloses a synthetic processing recycling reusing method of residual dining rubbish, which comprises the following steps: cutting to remove package bag, waste table cloth and plastic bag; vibrating and sieving to pick chopstick; using magnet to attract bottle cap; washing the separated materials mechanically; collecting splitly; boiling main solid material under 130-150 deg. c for 30-60 min; squeezing the boiled material to separate solid from liquid; proceeding oil-water separation for the squeezed water and oil through centrifuging; doing anaerobic ferment for the waste water to produce methane; esterifying waste oil and carbinol to prepare fatty acid methyl ester. The invention eliminates secondary pollution during environmental protection and disposal, which is a reasonable, industrial, scaling, non-harmful, resourcing disposing pattern for the dining rubbish with good applying prospect.

The invention relates to scenedesmus obliquus, in particular relates to scenedesmus obliquus capable of synchronously processing municipal sewage and accumulating grease, and aims at solving the problem in the coupling process of a microalgae biodiesel production system and a municipal sewage processing system that the algae has poor stress resistance, low content of cell fat, and poor decontamination ability, has difficulty in degrading carbon source substances in a water body and needs external source nutrient substances for growing in the water body. The scenedesmus obliquus PF3 is preserved in China general microbiological culture collection center (CGMCC) at No.3, No. 1 yard, Beichen west road, Chaoyang district of Beijing on July 30, 2013 with the preservation number of CGMCC No.8015. The scenedesmus obliquus has the advantages of having strong anti-pollution capacity, and being capable of growing and breeding with contaminants such as carbon, nitrogen and phosphorus in unsterilized general municipal sewage as nutrient substances, and accumulating grease.

The invention relates to a biogas slurry concentrate and an engineering preparation method, which belongs to the technical field of biogas slurry resource utilization. The method comprises the following steps: pretreating a membrane of a chicken manure biogas slurry, passing the pretreated biogas slurry through an ultrafilter membrane of an inorganic ceramic membrane for filtering impurity, passing through a nanofiltration membrane and a reverse osmosis membrane for interception and condensation, and final removing solid insoluble particles in the biogas slurry, the macro-molecule substance which is difficult to be absorbed by the crops, high power concentrated biogas slurry organic micromolecule nutrients. The method overcomes of disadvantages of easy membrane obstruction, severe damage, difficult high power condensation, difficult engineering stable operation in prior art, the obtained biogas slurry concentrate finished product is nano level organic state micromolecule substance, has the advantages of comprehensive and balanced nutrition, good water solubility, strong permeability, high activity, and high practical application value.

The invention discloses a recycling treatment device for desulfurized waste water and a method thereof. The recycling treatment device is characterized according to the characteristics of the desulfurized waste water, i.e., high-hydrochloric-acid inorganic waste water, a membrane treatment technology and an evaporation and crystallization treatment technology are adopted for carrying out the high-efficiency combined design, and the recycling treatment device comprises a pretreatment system, a membrane concentration treatment system and an evaporation and crystallization treatment system. The method comprises the following steps: firstly utilizing lime, sodium carbonate and a weak-acid bed for softening, and filtering by a cross-flow tube type microfiltration membrane, and removing calcium-magnesium ions and heavy-metal pollutants, then utilizing reverse osmosis and electrodialysis to carry out concentrated reduction on pretreated water, and reusing water produced from the reverse osmosis; finally evaporating and crystalizing concentrated liquid of the membrane concentration treatment system, respectively producing sodium sulfate and sodium chloride for recovering, reusing condensed water, thus achieving the purpose of recycling treatment of the desulfurized waste water. The recycling treatment device and the method disclosed by the invention have the advantages that (1) the softening of the lime, the sodium carbonate and the weak-acid bed is thorough; (2) the reverse osmosis and electrodialysis concentration are high-efficiency and the water produced by the reverse osmosis can be reused; (3) the sodium sulfate and the sodium chloride are respectively recovered from evaporation and crystallization; (4) the recycling treatment of the desulfurized waste water is realized.

The invention belongs to the technical field of water treatment, and in particular relates to a nitrogen-containing sewage treatment process and device for synchronously producing electricity and recovering a nitrogen element. The device comprises a bioelectrochemical system and a membrane distillation system, wherein the bioelectrochemical system comprises six parts, namely a positive electrode chamber, a positive membrane, a recovery chamber, a negative membrane, a negative electrode chamber, an outer circuit. The process comprises the following steps: entering nitrogen-containing sewage into the positive electrode chamber, carrying out microorganism anaerobic decomposition on pollutants and transferring electrons to a positive electrode, and further transferring the electrons to a negative electrode through the outer circuit so as to achieve electricity production; entering the nitrogen-containing sewage into the negative chamber for aerobic treatment, thus converting ammonia nitrogen into nitrate nitrogen; respectively entering ammonium radical in the positive electrode chamber and nitrate radical in the negative electrode chamber into the recovery chamber through the positivemembrane and the negative membrane under the driving of potential difference; and treating water in the recovery chamber with the membrane distillation system, and refluxing percolate to the recoverychamber, wherein a concentrated liquid is a solution containing high-concentration ammonium nitrate and the like, thereby achieving the recovery of the nitrogen element. The process provided by the invention is simple and has high efficiency and good economic benefits; and the treatment device is simple in structure, and is convenient for practical application.

The invention discloses an aerobic-anoxic-anaerobic integrated module type fast denitrogenation reactor for sewage and a treatment method thereof and relates to an integrated sewage treatment device, which is particularly suitable for fast integrated treatment for sewage by denitrogenation technology. The device is designed for solving the problems of complex process, high treatment expense, additional carbon source and regulation of outflow pH, difficult zero discharge and the like existing in aerobic-anoxic-anaerobic denitrogenation sewage treatment. Aerobic-anoxic-anaerobic processes are technically integrated to enable sewage to be always in an alternate aerobic-anoxic-anaerobic environment; an organic carbon source, organic nitrogen and total phosphorus are distributed reasonably to avoid shortage of carbon source during denitrogenation, so that total nitrogen and total phosphorus are converted effectively, the effect of denitrogenation and dephosphorization are improved, and discharged water reaches first discharge standard of Integrated Wstewater Discharge Standard (GB8978-1996). The device is used for treating municipal domestic sewage, especially sewage of middle and small stations along railway lines.

The invention relates to the technical field of insect feed processing, in particular to a method for preparing protein insect feed with organic waste and the prepared insect feed. The method comprises the steps of directly crushing the organic waste into powder, mixing with beneficial microorganisms for fermentation, and adding necessary nutrition additives to form the insect feed. The raw material is not required to be sterilized and dried at high temperature; the production cycle is shortened; the production cost is lowered; simultaneously, macromolecular substances of the organic waste are converted to small peptides, organic acid and sugar by physiologic metabolism of the beneficial microorganisms; various nutrient substances such as bio-enzymes and vitamins which have a prebiotic effect on high protein insects and are easier to absorb are produced; and the purpose of recycling is achieved. Fermentation heat energy produced during fermentation of the microorganisms is effectively utilized to kill pathogenic microorganisms possibly existing in the organic waste, and the biosafety of the insect feed is ensured.

The invention discloses complex microbial inoculant which comprises the following active ingredients: bacillus subtilis, bacillus megatherium, trichoderma koningii, aspergillus oryzae, trichoderma viride, geotrichum candidum, aspergillus niger, rhizopus oligosporus, lactobacillus plantarum CICC20768 and azotobacter chroococcum. Correspondingly, the invention further discloses a method for preparing an organic fertilizer from the complex microbial inoculant. The method comprises the following steps: a. uniformly mixing the complex microbial inoculant with a plant fiber raw material to obtain a fermented raw material; b, composting and fermenting the fermentation raw material; c, drying the composted fermentation raw material to obtain the organic fertilizer. microbes of the complex microbial inoculant have no antagonism, and can effectively cooperate in the production process of the organic fertilizer, and the chemical components of the production raw materials can be sufficiently utilized to finally produce the high-quality organic fertilizer. The produced organic fertilizer reaches the parameter indexes of the standard (NY884-2012) of China, can improve the planting property of soil, is beneficial to optimization of soil microbial flora, and can provide comprehensive nutrients to a plant root system.

The invention discloses a method used for producing porous biological ceramsite by taking waste incineration fly ash and biomass pyrolysis-gasification residue as raw materials. The method comprises following steps: household garbage incineration fly ash is subjected to high temperature treatment in the presence of a gasification agent so as to obtain residual ash; biomass is subjected to low temperature pyrolysis-high temperature steam gasification so as to obtain a pyrolytic residue; the residual ash, the pyrolytic residue, flyash, clay, and a pore-forming agent are subjected to mixing, pelleting, drying, and high temperature roasting so as to obtain the porous biological ceramsite product. Technology of the method is simple; operation is convenient; harmlessness treatment of fly ash and biomass pyrolysis gasification residue can be realized; the porous biological ceramsite product is prepared from waste incineration fly ash and biomass pyrolysis residue; quantity demand of ceramsite industrial on natural raw materials is reduced; and environment-protection value and economic value are both high.

The invention relates to a method which adopts anaerobic fermentation technique to make resourceful disposal of the organic compounds such as crop straws and animal droppings. The collected crop straws are cut into small sections no more than 5 cm in length and then sent to a pretreatment system together with the animal droppings to make sizing agent by watering and mixing. The sizing agent is heated to 37positive and negative 2 degrees C, the pH value is adjusted to 6.5 to 7.5 and the solid-containing content of the sizing agent is adjusted to 9.6 to 10.4 percent by water. Then the sizing agent is sent to an anaerobic fermentation tank and then the fermented liquid goes through treatment of solid-liquid separation. The organic fertilizer can be obtained after manuring the solid materials obtained. The liquid separated from the fermented liquid, namely biogas slurry can be used in irrigation of the agriculture and gardening. The marsh gas produced can be used as energy sources after desulfurization treatment. The treatment process has the advantages of no poison, no peculiar smell and no pollution, and achieves the innocent treatment and resourceful disposal of the crop straws and can avoid the bacteria and virus from propagating. The treatment method of resourceful disposal of the organic compounds also has the advantages of good economy and good ecological cycle, so is a green environment-friendly treatment method of organic garbage.

The invention relates to a method for resourceful treatment of ammonia chloride wastewaters. The method comprises the following steps: (1) respectively carrying out pretreatment on ammonia chloride wastewater with different concentrations for removing impurities; (2) carrying out reverse osmosis treatment on a clear liquor of the ammonia chloride wastewater, which is obtained in the step (1), with the concentration being lower than 0.5%; (3) mixing obtained reverse osmosis concentrated water with a clear liquid of the ammonia chloride wastewater, which is obtained in the step (2), with the concentration being higher than 0.5% so as to obtain ammonia chloride mixed wastewater; (4) carrying out conventional electrodialysis treatment on the obtained ammonia chloride mixed wastewater so as to obtain electrodialysis fresh water; (5) returning the obtained electrodialysis fresh water, carrying out reverse osmosis treatment the obtained electrodialysis fresh water to obtain electrodialysis concentrated water, and carrying out acid-alkali regeneration on the electrodialysis concentrated water by adopting bipolar membrane electrodialysis; and (6) converting ammonia chloride in the wastewater into hydrochloric acid and ammonium hydroxide by adopting the bipolar membrane electrodialysis to obtain low-concentration ammonia chloride wastewater, simultaneously returning the obtained low-concentration ammonia chloride wastewater and carrying out the conventional electrodialysis treatment on the obtained low-concentration ammonia chloride wastewater. According to the method, the resourceful treatment and the zero emission of the ammonia chloride wastewater can be really achieved.

The invention discloses a method for continuously producing solid and liquid organic fertilizers by using livestock and poultry feces. The process of the method comprises a solid-liquid separation unit-solid fermentation-a drying unit-a solid product and a liquid fermentation unit-a liquid product. The method specially comprises the following steps of continuously entering solid livestock and poultry feces separated by delivering the livestock and poultry feces into a worm press into a fermentation chamber of a solid fermentation machine for continuous biochemical treatment, and adding thereby trace elements to obtain a solid fertilizer product; entering liquid obtained through solid-liquid separation and liquid which flows out of the solid fermentation machine into a liquid fermentation tank without being subjected to multi-stage continuous biochemical treatment through a fermentation accessory ingredient, and adding the trace element to obtain a liquid fertilizer product. The method disclosed by the invention has the advantages of reasonable process, high automation degree, short production period, 10-20 hours fermentation time, processing cost reduction and no secondary pollution, thoroughly solves the problems of pollution of feces generated due to large-scale livestock and poultry breeding on the environment and demand of crops on organic fertilizers, realizes the recycling treatment and has good economic benefit, social benefit and ecological benefit.

The invention discloses a method of reducing the town sewage and sludge and managing the resource belonging to solid waste treating technical field. The method is provided with following steps: diluting and breaking the dehydrated mud cake by sodium hydroxide solution, and stripping a large amount of organic matter in sludge, getting concentrated sludge and supernatant fluid by centrifugation; dehydrating the former after neutralization and regulation; obtaining a concentrated liquid and a filtered liquid after wind filtering and secondary ultrafiltration of the latter. The supernatant fluid contains lots of sodium hydroxide, and is reflowed to cycle. After disposal, the rate of water content of the dehydrate mud cake is reduced to about 70%, lowering 50% compared to the organic matter content before disposal, and lowering 2 / 3 of total mass. The concentrated liquid after ultrafiltration is mainly composed of organic matter with a large molecule such as humic acid, and with a low content of heavy metal. The pathogenic bacteria is deactivated which accords to the ''fertilizer utilization criteria'' of Ministry of Agriculture to produce a safe and efficient liquid organic fertilizer. The invention is suitable for the residual active sludge generated from the town sewage treating factory, for digesting the sludge and reducing the composite sludge and for managing the resource.

A method of using iron tailings to prepare materials with high strength structures belongs to the building material field and relates to a method of using the iron tailings as main raw materials to prepare cementing materials and using the iron tailings as fine aggregate to prepare materials with high strength structures of fine aggregate concrete. Solid wastes are used as aggregate and used to substitute a part of cement to produce materials with ecological structures. Through implementing certain mechanical grinding on the iron tailings and adding a certain amount of slag to substitute a part of cement clinker, ecological mixed cementing materials with perfect performances are prepared through a grinding-mixed grinding process. The ecological mixed cementing materials and the coarse grain iron tailings used as aggregate are mixed to prepare materials with high strength structures. Through the steam curing or the autoclaved condition, materials with high strength structures are obtained, the maximum compressive strength of which reaches to 100MPa above. The materials with high strength structures prepared through the method of the invention has the advantages of natural freestone resources saving performance, high waste utilization ratio, small environmental pollution, low production cost and simple process and can be prepared into various concrete prefabricated parts.

The invention relates to the field of microorganisms, in particular to an extreme halophilic bacterium, a compound halophilic bacterium agent and application thereof. The extreme halophilic bacteria obtained through screening are respectively salt monad CGMCC NO.3081, pseudomonad CGMCC NO.3082 and bacillus CGMCC NO.3083. The invention also provides the compound halophilic bacterium agent containing the extreme halophilic bacterium. The invention obtains three extreme halophilic bacterium strains with the salt tolerance of 15-25 percent through separation, a compound extreme halophilic bacterium agent formed by compounding the three extreme halophilic bacterium strains can effectively process high salt cyanuric chloride production waste water, and compared with other processing technologies, the method better conforms to the state policies of circular economy and energy saving and emission reduction, can save a large number of running cost and realize the resource processing of waste water.

The invention relates to a method for comprehensively recycling municipal solid wastes, which comprises the following steps of: (1) breaking bags of municipal solid wastes, and then, sorting the wastes manually and sorting the wastes by a magnetic separator on a transmission belt; (2) crushing the sorted residual wastes through disk crushers at intervals of 2 inches; (3) transmitting the processed wastes into a drum-type blast sieving machine for separating; (4) crushing the processed wastes containing more than 98.5% of organic substances through disk crushers at intervals of 0.25 inch, transmitting the wastes into a high-temperature and high-pressure hydrolyzer for hydrolyzing, reducing the pressure, and then, crushing and spraying the wastes out; and (5) continuously transmitting the wastes to a sieving machine of 0.25 inch for sieving, wherein substances on the sieve are residual plastic substances, and substances below the sieve are pure organic substances. The method and the system for processing wastes, which are provided by the invention, can be used for realizing industrialization, are suitable for processing wastes in a scale of 100-300 tons per day, and have the advantages of low energy consumption and low water consumption.

The invention discloses a treatment method for mixed organic waste gas containing chlorine, hydrogen chloride and oxynitride. The method is capable of not only achieving a favorable removal effect on oxynitride, but also achieving a favorable removal effect on chlorine. A condensation unit, an absorbing unit and an adsorption unit are adopted in the treatment method, wherein the condensation unit adopts one-grade condensation; the absorbing unit adopts four-grade absorption; the absorption unit adopts two-grade absorption; waste gas firstly passes through a cooler and a demister of the condensation unit, so that VOCs with relatively high boiling points in the waste gas are cooled as much as possible and then recycled; then the waste gas enters into an aqueous urea solution absorption tower of the absorbing unit, and nitric oxides and chlorine in the waste gas are completely oxidized, reduced, decomposed and absorbed by virtue of a catalytic absorption reaction, so that nitrogen and chlorine are removed; the waste gas with nitrogen and chlorine removal enters into an aqueous falling film solution absorption tower of the absorbing unit, so that by-product hydrochloric acid is obtained; finally, the residual waste gas passes through an absorption tower of the absorption unit, so that the residual VOCs are adsorbed, and thus up-to-standard release is achieved.

The invention relates to a method for extracting a butyraldehyde and butanol mixture and an octenal and octanol mixture from waste liquid discharged by a butanol-octanol device, belonging to preparation methods of acyclic alcohol and acyclic aldehydes, particularly relating to the resource utilization and the treatment of the waste liquid discharged by the butanol-octanol device. The method is characterized by using a C4 fractionating tower system and a C8 fractionating tower system, wherein the butyraldehyde and butanol mixture is distilled off at the top of the C4 fractionating tower, and the octenal and octanol mixture is distilled off at the top of the C8 fractionating tower. The invention provides the method for extracting the butyraldehyde and butanol mixture and the octenal and octanol mixture from the waste liquid discharged by the butanol-octanol device, and the method lightens the wastewater treatment load of the butanol-octanol device, has the advantages of simple treatmentprocess, equipment investment saving and low operation cost and carries out the resource treatment of the waste liquid discharged by the butanol-octanol device so as to fully and effectively utilize the byproducts, such as butyraldehyde, butanol, octenal and octanol, The invention realizes the resource treatment of the waste liquid discharged by the butanol-octanol device.

The invention relates to a horizontally-arranged cylinder rolling type aerobic fermentation apparatus with a heat exchange function. A horizontally-arranged cylinder fermentation tank is supported by supporting roller sets. Bearings are arranged on left and right ends of the cylinder fermentation tank. The cylinder fermentation tank is connected to left and right side sealing caps through bearing outer rings and bearing inner rings. The fermentation tank, the bearings and the sealing caps form a sealed space. A spiral feeder and an exhaust pipe, and a spiral discharging machine and a gas inlet pipe are respectively arranged on the left and right side sealing caps. A coaxial cylindrical heat exchange water sleeve is arranged outside the cylinder fermentation tank. A motor, a coupler, a speed reducer, and a pinion are sequentially connected. The pinion is engaged with an outer gear ring on the cylinder fermentation tank. The apparatus provided by the invention is advantaged in small land occupation, high fermentation efficiency, and no secondary pollution. The apparatus is not affected by environment factors and low-temperature conditions. A finished product is advantaged in low water content, and can be commercialized as high-quality organic fertilizer. Therefore, excrement reduction, harmless modification and recycling and utilization can be realized. No odor or heat is discharged outside, and an environment protection effect is good.

The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treating agent. The domestic sewage treating agent is characterized by being prepared from, by weight, 20-50 parts of polyacrylamide, 10-20 parts of citric acid, 10-20 parts of corn starch, 5-15 parts of coke slag powder, 5-10 parts of activated carbon, 20-30 parts of sodium alga acid, 5-10 parts of lactic acid bacteria, 5-10 parts of actinomycetes, 6-12 parts of saccharomycetes, 6-12 parts of bifidobacteria, 5-15 parts of photosynthetic bacteria, 5-10 parts of bacilli and 5-15 parts of aboriginal bacteria. The domestic sewage treating agent is high in reaction speed, no toxic matter is produced in the reaction process, ecological and resourceful treatment of domestic sewage is achieved, no sludge treating system needs to be arranged, secondary pollution is avoided, the sewage suspended matter removing rate reaches 99.9%, the BOD removing rate is 99%, the COD removing rate is 99.1%, the treating effect is stable, and the domestic sewage treating agent is suitable for being used and popularized.

The invention discloses a ferric phosphate wastewater treatment process and treatment device, wherein the treatment process comprises the following steps of (1) membrane concentration: ferric phosphate wastewater is subjected to membrane concentration to obtain concentrated water and fresh water, wherein the membrane concentration includes reverse osmosis and / or electroosmosis; (2) evaporation: the concentrated water is evaporated to recycle a nitrogen and phosphorus compound fertilizer; the evaporated concentrated liquid flow backs to the membrane concentration front end for circulation treatment; (3) resin treatment: the fresh water and evaporated condensed liquid are subjected to resin absorption treatment; resin absorption effluent is discharged in a standard reaching way or is reused for production; resin analytical liquid is subjected to membrane concentration treatment. Multistage reverse osmosis and resin absorption treatment are combined; ferric polyphosphate wastewater is subjected to desalination and ammonia and nitrogen removal step by step, so that the insulation capability of the whole treatment process on ammonia and nitrogen is higher; the ammonia and nitrogen discharging standard exceeding of effluent can be effectively avoided.

The invention discloses a kitchen waste recycling treatment method by hermetia illucens, and belongs to the field of solid waste treatment. The method includes the steps: (1) removing tissues, toothpicks and the like in kitchen waste; (2) adding oil meals into the kitchen waste according to a certain proportion to adjust moisture content; (3) performing coarse crushing for mixture of the kitchen waste and the oil meals; (4) performing solid state fermentation for crushed mixture of the kitchen waste and the oil meals by the aid of bacillus licheniformis; (5) continuously fermenting products fermented by the bacillus licheniformis by the aid of saccharomyces cerevisiae; (6) placing hermetia illucens larvae into the fermented mixture according to a certain proportion to feed; (7) collecting the hermetia illucens larvae, larva sand and the fermented products without being eaten up after feeding period finishes. By the treatment method, odor of the kitchen waste is greatly improved, and nutritive values are improved.

The invention relates to the technical field of organic solid waste treatment and renewable energy treatment, in particular to a kitchen waste, municipal sludge and forestry and agricultural residue fermentation tank ultrahigh-temperature aerobic fermentation composting method which comprises the following steps: (1) pretreating; (2) fermenting in a fermentation tank at ultra-high temperature: 1)adjusting physicochemical indexes; 2) building a pile; 3), aerating; 4), turning and throwing; 5), inoculating extreme thermophilic microorganisms; and (3) screening the decomposed material, transporting the undersize material as a finished product, and refluxing and utilizing the oversize material. According to the method, the kitchen waste, the municipal sludge and the forestry and agriculturalresidues are used as raw materials for mixed fermentation, decomposed substances are organic fertilizers and can be reused for soil, and waste is turned into wealth. According to the method, the fermentation temperature exceeds 80 DEG C, the highest fermentation temperature can reach 110 DEG C, the fermentation temperature is high, the fermentation period is short, organic matter decomposition isfast, germs, viruses and worm eggs in the garbage are effectively killed, and garbage reduction, harmlessness and resourceful treatment are fast achieved.

The invention discloses a method for recycling sulfuric acid and ferrous sulfate from pickling waste liquor in the steel industry, and belongs to the technical field of resourceful treatment for waste liquor. The method mainly includes a technology for recycling ferrous sulfate by a freezing crystallization method, a technology for recycling sulfuric acid by a strong caustic anion exchange resin acid blocking principle and a technology for preparing polymeric ferric sulfate by a one-step catalysis method. The method has the advantages that the process and operation are simple, secondary pollution is prevented, resourceful treatment for the sulfuric acid pickling waste liquor is realized, the sulfuric acid is recycled and can be used for production, the ferrous sulfate is also recycled, polymeric ferric sulfate water purifier is prepared, and zero pollution emission of a steel enterprise is realized; recovery rates of the sulfuric acid and the ferrous sulfate are high and reach 82% and 97% respectively; and the quality of the polymeric ferric sulfate water purifier meets a type-I standard of the Polymeric Ferric Sulfate Water Purifier (GB14591-2006).

Production of cement with minor clinker has less environmental pollution. It utilizes oil shale smelting fly ash substituting with partial cement. It consists of oil shale fly ash 50-74 wt%, cement clinker 20-28 wt%, anhydrous gypsum or half-hydrous gypsum or dehydrated gypsum or devulcanized gypsum or fluorine gypsum or phosphor gypsum or their mixture 2-8 wt%, sodium sulfate or sal glauberi or their mixtures 1-4 wt%, caustic lime or carbide slag or their mixtures 2-8 wt%, efficient naphthalene water reducer or efficient trimeric cyanamide water reducer or efficient polycarboxylic acid or their mixture 0.1-2 wt%. It can get mixed gel materials with final specific area 480-680m2 / kg. It has less cement clinker and resources treatment.

The invention discloses a method for preparing aerated concrete from gangue and iron tailings. The method comprises the following steps of crushing non-hypergolic raw gangue to obtain particles of -2mm, carrying out drying, mixing 20-30% by mass of the gangue, 30-45% by mass of iron tailings, 22-30% by mass of carbide slag and 3-8% by mass of flue gas desulfurization gypsum to obtain a uniform mixture, wherein the above four raw materials are mixed according to mass percents after calcination, milling the mixture to powder with a specific surface area of 310-400m<2> / kg, calcining the powder at a temperature of 750-850 DEG C for 2-3h, naturally cooling the powder, adding the cooled powder into cement according to a ratio of 1: 0.03-0.07, and based on the total weight of the dry material, adding 0.05-0.06% of aluminum powder paste, 57-62% of warm water and 0.025-0.026% of a foam stabilizer into the mixture. Through pouring, standing maintenance, blank cutting and autoclaved curing, the aerated concrete accepted product with oven dry compressive strength of 3.5MPa or more and oven dry volume density of 550-625kg / m<3> is obtained.

The invention relates to a method of using carbide slag to replace all limestone for calcining cement, which belongs to the inorganic non-metallic material technological field. The invention uses the carbide slag as the calcareous raw material and adopts the dry process pre-decomposition cement production technology out of kiln. The invention is characterized in that the carbide slag is used to replace the limestone in 100 percent for calcining the cement clinker, and the invention includes: firstly, the preheating and the pre-decomposition of the carbide slag: a cyclone preheater and a calciner system are adopted for the preheating and the pre-decomposition of the carbide slag green stock; the decomposition temperature of the carbide is 380-550 DEG C, and the outlet temperature of the calciner is 550-750 DEG C; secondly, the coal powder burning and the green stock decomposition: the coal powder and the green stock enter the calciner respectively through a distributor; the adding position and the adding amount of wind, materials and coal of the calciner are controlled; the coal powder is burned at the condition of 850 DEG C above; the green stock is decomposed; thirdly, the materials enter a rotary kiln to be calcined into the cememt clinker. The invention has the advantages of resource saving performance, little CO2 emission, low cost, circular economy, etc.

The invention discloses a method for performing pig manure resource treatment by utilizing hermetia illucens, belonging to the field of solid waste treatment. The method comprises the following technological steps: (1) mixing pig manure with oilseed meals so as to adjust the water content of pig manure; (2) performing primary fermentation to the mixture by adopting bacillus subtilis, and further fermenting with brewer yeast; (3) feeding black soldier fly Hermetia illucens for raising according to a certain proportion; and (4) after the raising period is finished, collecting the black soldier fly Hermetia illucens and ooze. The method is simple to operate, and fast for pig manure resource treatment process. After conducting the above technological treatment, pig manure and oil seed meals are converted into black soldier fly Hermetia illucens and excreta ooze thereof, the residual tetracycline antibiotics (oxytetracycline, chlorotetracycline and tetracycline) in the pig manure cannot be detected in the black soldier fly Hermetia illucens and ooze. The method not only can solve the problems of pig manure environment pollution, the antibiotics residues, human health damage and the like, but also can provide black soldier fly Hermetia illucens and ooze with rich nutrients for feed and fertilizer industries.

This invention discloses a device and its application method for processing liquid fuel by catalyzing and pyrolyzing sewage and sludge, in which, the device is composed of an N2 gas tank source, a heating oven, a temperature control instrument, a condenser, a liquid phase collection bottle, a buffer bottle, an absorption bottle, a gas bag and a raw material pyrolyzing reactor, the method includes putting a pyrolyzing reactor with oil sludge and catalysts in a heating oven, giving cooling water, turning on the supply and designing temperature controlling program to heat it to 500-600 deg.C with the temperature rising speed of 5-10deg.C / min and keeping 30-40min. the content of petrol reaches to 20%, diesel oil to 50%, the rest is heavy oil, the content of C64 component in the fuel gas reaches to 40%, mild hydrocarbon gas, liquid fuel oil and solid coke can be got from the pyrolyzed sludge.