68results about How to "High degree of harmlessness" patented technology

The invention relates to a harmless disposal method of kitchen garbage, which comprises the following steps of: (1) pretreatment: after unloading the kitchen garbage, performing solid-liquid separation, rough crushing, crushing and sorting and performing magnetic separation, and recycling metal substances mixed in the kitchen garbage; (2) hydrothermal hydrolysis: after the pretreatment, adopting the hydrothermal hydrolysis to fully inactivate viruses and bacteria in the kitchen garbage, separating out animal and vegetable fatty oil from the kitchen garbage, and hydrolyzing organic materials at the same time; (3) using the fatty oil obtained in the step (2) as an industrial fatty oil material or further performing deep processing to obtain fatty acid methyl ester or biodiesel; mixing and proportioning the pasty organic materials and then conveying into an anaerobic fermentation system; and conveying large granular organic materials into an aerobic biological fermentation device. The method provided by the invention realizes harmless disposal of the kitchen garbage mainly by the pretreatment and the hydrothermal hydrolysis process, increases the conversion rate of biological energy of the kitchen garbage and increases the economic benefit of kitchen garbage recycling products.

The invention relates to a treatment method of sludge generated by urban sewage treatment plant and industrial sludge and discloses a sludge treatment method based on hydrothermal carbonization. The sludge treatment method comprises four steps: sludge preheating treatment, hydrothermal carbonization, waste heat recovery and dehydration desiccation. By adopting the sludge treatment method, as the sludge is converted to hydrothermal carbon by adopting a hydrothermal carbonization technology, pathogenic microorganisms in the sludge are completely killed, most heavy metal pollutants in the sludge are dissolved out, and organic toxic substances in the sludge are effectively decomposed, so that the energy recovery utilization rate is high, and the sludge treatment method is clean, environment-friendly, rapid and effective and has high product additional values.

The invention discloses an organic and inorganic compound fertilizer for kiwi fruits. The organic and inorganic compound fertilizer comprises organic fertilizer base materials and inorganic chemical fertilizers; the organic fertilizer base materials are prepared through mixing chicken manure with rape seed cakes according to the dry weight ratio of (1.74-2.21): 1 and carrying out composting fermentation for 20 days; and the organic and inorganic compound fertilizer is prepared through mixing the organic fertilizer base materials with urea, monoammonium phosphate and potassium chloride according to the dry weight ratio of (12.82-13.69): (2.01-2.07): (1.80-2.15): (2.01-2.56), drying, granulating, sieving and packaging. According to the organic and inorganic compound fertilizer for the kiwi fruits, as organic matters and inorganic matters are combined, the organic and inorganic compound fertilizer not only provides comprehensive nutritional needs for the growth of the kiwi fruits, but also is conducive to the improvement of the soil structure and the increase of the fertilizer utilization ratio, so that the yield and quality of the kiwi fruits can be remarkably improved; and meanwhile, the resource utilization of agricultural wastes is realized, and the preparation cost of the fertilizer is low, so that the organic and inorganic compound fertilizer has good economic and ecological environmental benefits.

The invention discloses vermicompost organic compound fertilizer capable of being used for ryegrass, and a preparation method thereof, and belongs to a manner of cycle use of agricultural wastes. The organic compound fertilizer comprises, by weight, 6-9 parts of the vermicompost and 1-2 parts of inorganic fertilizer, wherein the inorganic fertilizer comprises, by weight, 3.5-7 parts of urea, 4.5-9 parts of phosphorus superphosphate and 2-4 parts of potassium chloride. The vermicompost organic compound fertilizer directly provides a reasonable use path of the vermicompost organic compound fertilizer, and indirectly solves the harmful problems of livestock and poultry breeding organic wastes such as pig manure and goat manure to the environment. The compound fertilizer is reasonable in organic and inorganic proportions, has long-term fertilizer capacity of organic fertilizer and short-term fertilizer capacity of inorganic fertilizer at the same time. By applying enough base fertilizer once during a planting process of the ryegrass and applying the compound fertilizer once in a harvest middle stage, nutritional requirements of the ryegrass during the whole production period can be met. Fertilizer cost is reduced; a topdressing stage during the planting process of the ryegrass is omitted, so that production and management cost for the ryegrass can be saved.

The invention discloses an ecological organic fermented fertilizer which comprises the following components in parts by mass: 1,200-1,800 parts of crop waste, 2,500-4,000 parts of composted excrement, 1,600-2,000 parts of river mud, 1,200-1,600 parts of cake meal, 800-1,200 parts of bentonite, 300-600 parts of waste oil residue, 80-200 parts of corn flour, 800-1,200 parts of waste fungus spores and 100-140 parts of microbial fermentation bacterial agent. In the organic fertilizer disclosed by the invention, the damage on the crops and seed germination caused by diseases and pests and the influence on the purity and quality of agricultural products after fertilization are avoided; when in use, foul smell in the field is avoided, the dosage of chemical fertilizer is reduced, the cost is saved, and the soil depletion, hardening and salinization are avoided; after use, the soil fertility is improved, the immunity of agricultural and forestry crops is enhanced, the grain yield increase is realized, and the trends of energy saving, environmental protection and sustainable development are met.

The invention discloses a method and a system for manufacturing building materials by using stale garbage. According to the method, the building material is prepared by taking humic muck screened outfrom the stale garbage as a raw material, and compared with sorting of different components of the stale garbage in the prior art, the method has the advantage that the accuracy is higher so that theresidual value of available resources in the garbage can be fully played; according to the system, manual sorting, magnetic separation, hot air separation, screening and crushing devices are combined, the process is well-organized, high-efficiency separation of magnetic substances, combustibles, the humic muck, large plastic blocks, large rubber blocks and other recyclable objects in the stale garbage can be achieved, so that accurate sorting and highly recovery of recyclable resources in the stale garbage can be realized; and meanwhile, due to the fact that the content of the humic muck in the stale garbage is extremely high, the muck is regenerated into the building material, a large amount of soil taking land can be saved every year, and the extremely good environmental protection benefit and social benefit are achieved.

The invention discloses a harmless treatment and high value utilization method for copper-containing sludge. A copper product is obtained after first-level leaching, second-level leaching and extracting electrodeposition. According to the method, ingenious coupling is conducted on two-level leaching of precipitated iron and the copper-containing sludge, the dewatering performance is good, the filtering performance is improved, the influence of impurities on a copper extracting agent is reduced, stable control over the copper extracting process is facilitated, the problem that the concentration of iron ions in a leaching agent of the high-iron copper-containing sludge is far higher than the concentration of copper ions is solved, the impurities in copper-rich liquid obtained after extraction are smaller, and high-quality cathode copper can be obtained more easily; two-level leaching is adopted, the inhibiting action of the high-concentration copper ions on ferrous sulfide oxidation microorganisms in the second-level leaching is reduced greatly after the first-level leaching, multiple kinds of copper in complex forms not easily leached in first-level leaching slag of the copper-containing sludge can be deeply leached and extracted through the microorganisms more easily within the short time, and the high value utilization of harmless treatment products of the copper-containing sludge is achieved.

The invention discloses a comprehensive cyclic utilization and treatment method for municipal waste, belonging to the technical fields of comprehensive treatment of municipal refuse and cyclic reutilization of resources. The comprehensive cyclic utilization and treatment method comprises the following steps: (1) building a farm, an excrement treatment pond, a forest zone and a refrigeration house; (2) collecting waste in a classifying manner; (3) transporting the classified and collected kitchen waste to the refrigeration house for centralized treatment, particularly transporting classified and collected recyclable waste, unrecyclable waste and harmful waste to a waste treatment plant for sorting; (4) extracting grease from bones and grease of livestock, and making squeezed bone dreg into bone meal; (5) transporting fresh residual vegetables, food residues and soup, melon shells and fruit shells in the refrigeration house to the farm for use; (6) transporting excrement waste and livestock bristles to the excrement treatment pond built in the farm; and (7) transporting agricultural products produced in the farm to a city to meet city living needs, and cyclically treating and utilizing the produced waste according to the previous steps.

The invention relates to a method for processing sludge by utilizing a thermophile bacteria reinforcement ATAD (Autothermal Thermophilic Aerobic Digestion) process. The method comprises the following steps of: (1) preparing an advantage bacterial agent; (2) carrying out pre-concentration processing; (3) carrying out ATAD processing; and (4) carrying out storage. According to the invention, thermophile bacteria with strong capacity of degrading organic matter in the sludge are screened and acclimatized by adopting a modern biotechnology; the method does not just depend on the thermophile bacteria of the sludge; the short-time high-efficiency degradation characteristic for the sludge is realized by utilizing an active extracellular enzyme secreted by the thermophile bacteria at high temperature; the method is combined with the ATAD process to improve reduction efficiency and harmless degree of the sludge; a novel technological approach is provided for fulfilling the aims of reduction, harmlessness and reutilization of the sludge; wider technical means and process are developed; and cost of processing and disposing the sludge is reduced.

The invention relates to a resourceful treatment method for waste bodies of dead livestock and poultry animals. The resourceful treatment method comprises the following steps: refrigerating, storing and cutting dead animals, and crushing the refrigerated dead animals to obtain animal fragments; cooking the animal fragments; mixing the oil-removed animal fragments with a compound microbial agent to carry out micro-biological degradation; and carrying out medium-temperature aerobic fermentation on a degraded product to obtain biogas, biogas slurry and biogas residues, wherein the compound microbial agent consists of anabaena, bacillus subtilis, lactobacillus acidophilus, bacillus megatherium, bacillus cereus, bacillus pumilus, slender rhodospirillum, stenotrophomonas maltophilia and bacillus mojavensis. The resourceful treatment method solves the problem of treating dead bodies of the livestock and poultry animals of a large-scale breeding plant, so that resources are reused.

The invention discloses a garden waste lignin component fermentative degradation method. The method includes the steps of: (1) crushing materials into materials with a particle size of 0.4-0.7cm; (2) placing the crushed materials into a first-stage fermentation area, adding a mushroom residue fermentation broth into the materials to keep the water content of the materials at 55%-65%, and conducting primary fermentation; (3) adding the mushroom residue fermentation broth into the materials subjected to primary fermentation, keeping the water content of the materials at 45%-55%, and then placing the materials in a second-stage fermentation area for secondary fermentation; and (4) putting the fermented materials subjected to secondary fermentation into a third-stage fermentation area for fermentation, thus finishing the whole fermentative degradation process. Directed at the characteristics of lignin in the materials, the method provided by the invention adopts physicochemical treatment method and biochemical treatment method for material pretreatment and material conditioning, and directed at the activity characteristics of bacteria, fungi, actinomycetes and other different dominant degrading floras at different temperature stages in the fermentative degradation process, realizes accurate condition control and efficient degradation of lignin.

The invention discloses a cellulose degradation complex microbial inoculant and a preparation method thereof. The cellulose degradation complex microbial inoculant is prepared from bacillus mycoides, serratia marcescens, corynebacterium glutamicum, trichoderma reesei and aspergillus fumigatus. The total viable count of the complex microbial inoculant is greater than or equal to 3.75 * 10 < 8 > cfu/mL. The complex microbial inoculant provided by the invention can improve the production efficiency of the organic fertilizer taking the high-cellulose-content organic waste as the fermentation raw material, promote the resource utilization of the high-cellulose-content organic waste such as straw and phytophagous animal manure, and provide a technical basis for the production of the high-quality organic fertilizer and the development of an agricultural waste green treatment mode.

The present invention relates to a straw microorganism decomposing bacterial agent, which is prepared mainly from a straw microorganism decomposing bacterial liquid and a protein nutrition agent according to a volume ratio of 1:1, wherein the straw microorganism decomposing bacterial liquid preparation method comprises: carrying out sealed fermentation on a straw mixture to obtain bacteria, and carrying out in vitro culture on the bacteria by using a microorganism culture medium to obtain the straw microorganism decomposing bacterial liquid. According to the present invention, the composting heat generation bacteria are obtained by using the straw mixture fermentation process, and are subjected to enrichment culture, the obtained composting heat generation bacteria are mixed with the protein-rich protein nutrition agent to obtain the straw microorganism decomposing bacterial agent; the obtained straw microorganism decomposing bacterial agent can produce the heat during the straw composting process so as to effectively supply the temperature required by bacterial breeding; and the protein nutrition agent supplies the nitrogen source, such that a lot of the microorganism can be bred by using the nitrogen source supplied by the protein nutrition agent at the early microorganism fermentation stage so as to improve the compositing rate, effectively shorten the time required by the fertilization, and solve the problems of less functional microorganism, slow breeding and serious nitrogen loss at the early fertilization stage in the fertile soil fertilization process using the straw composting fertilizer.

The invention provides a three-waste integrated reactor. The three-waste integrated reactor and method for treating nitrite gas is vertically arranged and comprises a first combustion chamber arrangedat the top, the first combustion chamber is provided with a primary air inlet which is formed in the tangential direction and is used for spraying mixed air of waste solid and primary fuel gas into the first combustion chamber; the reactor further comprises a second combustion chamber, the second combustion chamber is provided with a secondary air inlet which is tangential to the second combustion chamber and is used for spraying mixed air of waste solid and secondary fuel gas into the second combustion chamber; a waste liquid filling port is formed in the second combustion chamber and is used for filling waste liquid into the second combustion chamber; a combustion descending channel is formed between the first combustion chamber and the second combustion chamber, and the combustion descending channel protrudes outwards to form a mixing chamber; and a grating tower is arranged at the bottom of the reactor, and a water quenching tank is arranged below the grating tower. According to the three-waste integrated reactor, the blockage of the dangerous waste incineration device can be effectively avoided, and meanwhile, the nitrite gas generated in the adipic acid production process can be sufficiently recovered.

The invention discloses a preparation method of a special decay promoting agent for livestock and poultry manure compost, and belongs to the technical field of agricultural chemicals. According to themethod, 8 to 12 parts of N'-hexadecyl-N,N-dimethyl ethyl isethionate,5 to 15 parts of additives, 5 to 12 parts of modified paraffin, 8 to 15 parts of decay accelerators and 30 to 50 parts of additionliquid are sequentially weighed in parts by weight; the addition liquid and the N'-hexadecyl-N,N-dimethyl ethyl isethionate are mixed into a material mixing machine; the modified paraffin, the additives and the decay accelerators are sequentially added into a material mixing machine; the stirring and mixing is performed for 30 to 90 min under the conditions of the temperature being 30 to 35 DEG Cand the rotating speed being 300 to 400 r/min; the special decay promoting agent for livestock and poultry manure compost is obtained. The obtained special decay promoting agent for livestock and poultry manure compost has the excellent decay promoting efficiency.

The invention provides a method for preventing and controlling insect pests by composting fallen leaves and waste branches of Swietenia macrophylla. The method comprises the following steps: (1) mixing the fallen leaves and waste branches of Swietenia macrophylla, charcoal and kitchen garbage as compost raw materials; (2) pretreating the compost raw materials to enable the carbon nitrogen ratio of the raw materials to be 25-35; (3) feeding the pretreated raw materials into a fermentation tank for composting fermentation, performing primary fermentation in an intermittent aeration mode with a turning frequency of 3-5 d/time, and continuously carrying out secondary fermentation by adopting an intermittent aeration mode with a turning frequency of 6-7d/time so as to obtain a fertilizer; and (4) applying the fertilizer into the soil. According to the method, the waste branches and leaves of the Swietenia macrophylla are subjected to two-stage composting treatment to obtain the organic fertilizer, waste can be utilized, and soil pests can be killed.

The invention discloses a treatment method for methylene blue dye wastewater based on short-range photocatalysis/alga biodegradation. The method specifically comprises the following steps: (1) short-range photocatalysis: adding a metal organic framework material UiO-67 into methylene blue dye wastewater with a concentration of 500-800 mg/L, and carrying out a short-range photocatalysis reaction under the irradiation of visible light so as to convert methylene blue into an intermediate product which is easy to biodegrade; (2) settling: after photocatalysis is completed, subjecting a treated solution to standing for a period of time so as to enable UiO-67 to naturally settle, thereby realizing separation of upper-layer liquid and lower-layer solid; and (3) alga degradation: further treatinga photodegradation intermediate product in the upper-layer liquid obtained in the step (2) with chlorella pyrenoidosa to completely degrade the photodegradation intermediate product. According to themethod, the removal rate of high-concentration methylene blue can reach 95% or above, used materials are easy to prepare, dye degradation efficiency is high, harmless effect is good, treatment cost islow, and the method has good application potential.