630results about How to "Solve environmental pollution" patented technology

The invention belongs to the field of metal surface treatment, relating to a zinc phosphating solution of aluminium and aluminium alloy. The invention is mainly used for zinc phosphating treatment of the aluminium and aluminium alloy in the industries of home appliances, automobiles, hardware, building materials and railway locomotives. The zinc phosphating solution is composed of 8-25g/l of PO4<-3>, 6-16g/l of NO3<-1>, 1.6-8.0g/l of Zn<+2>, 0.12-0.38g/l of F<-1>, 0.6-8.0g/l of Fe<+2>, 0.01-1.5g/l of Ni<+2>, 0.0002-0.0006g/l of accelerating agent, 0.001-1.2g/l of organic complexing agent and the balance of water. When the phosphating solution of the invention is used for processing the aluminium and aluminium alloy, the obtained phosphating film has favourable matching capability with the coating, and the griding test of the paint film can reach 0 grade. The phosphating solution of the invention does not use toxic chromium, and the phosphating film does not contain chromium so as to solve the problems of environment pollution and toxic hazard on the human body when the chromium is used for processing the aluminium and aluminium alloy, and lower treatment cost.

The invention discloses an alkali-activated high-performance water reducer and a preparation method thereof. The alkali-activated high-performance water reducer comprises a composite alkali-activator, a composite water reducer, black liquor of a paper mill, a composite retarder, a composite air entraining agent, a composite thickener, a composite regulator and the balance of water. The preparation method for the alkali-activated high-performance water reducer comprises the following steps of: adding the components and water to a reaction kettle in sequence; and mixing and carrying out a reaction on the components and the water under the room-temperature environment to obtain the finished product. The alkali-activated high-performance water reducer disclosed by the invention can activate the cementitious activity of the mixed materials such as slag, coal ash, gangue and the like, has excellent adaptability to different cements and highly doped concrete, and can greatly reduce the adding amount of cement clinker. The alkali-activated high-performance water reducer has the characteristics of a high water-reducing agent, good peaceability, a remarkable reinforcing effect, a good collapse preventing effect, adjustable setting time and the like. Moreover, the external additive has a simple production process, no pollution, low energy consumption and low cost, can solve an environmental pollution problem of the black liquor of the paper mill, and has good practicability.

The invention relates to the technical field of harmless treatment of polluted soil microorganisms. In particular, it relates to a microbial harmless treatment method for oil and gas field drilling waste mud. Aspergillus oryzae, Bacillus subtilis, Pseudomonas fluorescens, Acinetobacter calcoacetate and Rhodococcus erythrococcus are respectively cultured in test tubes, shake flasks, Seed tank culture, fermenter culture, and sterilized solid medium culture become solid bacterial agents for production, which are mixed in proportion to solid mixed bacterial agents for production, and the bacterial agents are connected to oil and gas fields to discharge waste mud during drilling, and after uniform stirring, Control the cultivation temperature and time of the microbial harmless treatment of mud, and the above treatment process can be carried out in the abandoned mud pool for drilling in oil and gas fields. Through the growth, reproduction, degradation and transformation of microorganisms in waste mud, the mud can be detoxified, degummed, desalinated and dehydrated, so that the polluted soil environment can be biorestored and the ecological environment can be restored.

The invention discloses solid fuel which is mixed by organic waste and sludge and a process for preparation. The solid fuel comprises the organic waste: 25%-55%, the sludge: 20%-50%, coal powder: 20%-50%, combustion improver: 0.15%-0.25% and desulfurization dechlorinating agent 0.5%-2%. The process for preparation comprises three stages of raw material preparation, molding and consolidation. The invention is tested by the solid fuel mechanical strength, burning characteristics, pollution control and the like. The solid fuel which is mixed by the organic waste and the sludge and prepared by the manufacturing process of the invention is comparatively ideal clean fuel with higher mechanical strength and can satisfy long-distance transportation with the falling strength more than 99%, the invention is the solid fuel with strong mechanical strength, good water resistance, excellent combustion characteristics, strong thermal stability and non pollution and can be extended to be applied in civilian uses and industrial sectors. The invention can also save a great amount of non-renewable fossil fuels such as petroleum, coal and the like with good social and environmental benefits.

The preparation methods of globefish skin active collagen and the peptide of the active collagen are that the globefish skin is cut into small pieces to be frozen, dried, crushed and put into sodium chloride solution to be stirred for 12 hours and then for centrifugation to discard supernatant and remove non-collagen proteins, deposition is put in to acetum, pepsin is added under 0 DEG C to 10 DEG C for enzymolysis and centrifugation, the supernatant is put through an ultrafiltration membrane, and the above part is frozen and dried to obtain the collagen. After the active collagen is prepared, the rest deposition is centrifugated until the pH value is between 2.0 to 7.0, papain is added into the deposition for the enzymolysis, the supernatant is centrifugated and respectively put through the ultrafiltration membrane after enzyme-denaturing to obtain the globefish skin collagen peptide of different molecular weight ranges, and the globefish skin collagen peptide are frozen and dried to obtain the light yellow or white powdery globefish skin collagen active peptide which has good antioxidation character and takes effects of eliminating free radical and reducing the senescence degree.

The invention discloses a Bacillus siamensis strain for preventing and treating pear ring rot and soft rot and application thereof. The Bacillus siamensis strain is separated from peels of Laiyang pears with sterilized surfaces, the strain has broad-spectrum resistance for various types of phytopathogens and has a good effect on preventing and treating the pear fruit rot caused by pear ring rot and soft rot. The strain comes from pear fruits and is safe to pear fruits; the strain is produced on a large scale, is low in raw material cost, convenient to operate and stable in prevention and treatment effect, and can effectively solve the problems of agricultural residues and environment pollutions caused by pear fruit disease and insect pesticide prevention and treatment. The strain has huge application potential on the aspects of biological prevention and treatment of after-harvest diseases and insects of pears, and the excellent basic strain is provided for research and development of microbial pesticides.

The invention relates to a method for producing a sargassum liquid fertilizer with sargassum residues. The method comprises the following steps such as mixing of the sargassum residues and water, pH value adjustment of concentrated hydrochloric acid, enzymolysis and separation of complex enzyme and the like. According to the method, the bioactivator and part of nutrient substances remained in the sargassum residues are further extracted for preparing a liquid fertilizer, so that the problem of seawood processing enterprises that the sargassum residues contaminate the environment is solved, the sargassum residues are recycled, the economic benefit of the enterprises is improved, and a new way for comprehensive utilization of sargassum residues is developed. Furthermore, the sargassum liquid fertilizer can improve the photosynthesis speed of vegetable crops, can promote the growth of the vegetables, and improves the output of the vegetable crops obviously.

The invention provides a method for removing nitrogen and phosphorus in sewage by zeolite synthesized by coal ash. Low-calcium coal ash and high-calcium coal ash are respectively used as raw materials so as to synthesize zeolite with different removing effects by alkali fusion method. The zeolite synthesized by the low-calcium coal ash is adopted for processing ammonia nitrogen-contained sewage, the zeolite synthesized by the high-calcium coal ash is adopted for processing phosphorus-contained sewage, and the zeolite synthesized by the low-calcium ash coal and high-calcium ash coal with different mixing ratios is adopted for processing mixture sewage with different nitrogen and phosphorus ratios. In the invention, the prepared zeolite has high purity, different types of zeolite can be adopted according to sewage properties, the pollutant absorbing amount is large, and the solid adding amount in the practical application is reduced effectively. After absorbing nitrogen and phosphorus, the sludge can be used as fertilizer, so that not only the environmental pollution problems caused by waste solid coal ash, nitrogen and phosphorus in sewage and the like are solved, but also the reclamation in the pollutant is realized. According to the technology, the operation is simple, the running cost is low, and the method can be applied to industrial point source, plane source and nitrogen and phosphorus treatment in tail water of sewage treatment plants in cities and towns.

The present invention discloses a method of producing yeast protein feed with leftovers from kitchen. The production process of high-calcium multivitamin yeast protein feed includes crushing, dewatering, adding nitrogen to neutralize, disinfection, inoculation of yeast and microbial bacteria, solid fermentation under control of computer, drying, milling, assaying and packing. It makes it possible to change waste leftovers into high-quality high-calcium multivatamin yeast protein feed.

The invention discloses a production method of recycled aggregates of building wastes. The method comprises the following steps: (a) pre-screening; (b) impurity removal; (c) primary crushing; (d) primary screening; (e) secondary crushing; (f) secondary screening; (g) material division; (h) mixing of the recycled aggregates; (I) homogenization and entrance into warehouse. According to the production method of the recycled aggregates of the building wastes, based on a series of treatment processes, the building wastes are manufactured into engineering dinas (also named as aggregates), so that the problems of land occupation and environment pollution caused by stacking the building wastes are solved, a large quantity of dinas for building engineering can also be provided, and the method is energy-saving and environmentally friendly; meanwhile, the problems of energy sources and environment caused in a manual dinas exploitation process also can be solved. The recycled aggregates produced by using the production method is stable in performance, and can be widely applied to construction of various kinds of building engineering and road engineering.

A soilless culture method with rice husk as matrix for rice seedlings includes such steps as breaking rice husk, immersing in water, stirring, spreading, applying water, covering by film, holding water content, and applying fertilizer. Its advantages are high yield and high quality of rice.

The invention relates to a decomposition process for comprehensively recovering a liquid alkali roasting resource of mixed rare earth concentrate, comprising the following steps of: mixing and roasting the mixed rare earth concentrate and sodium hydroxide according to a weight ratio, wherein the roasting temperature is 200-600 DEG C, and the roasting time is 0.5-4 h; watering the roasted mineral water to be neutral; preferentially dissolving an alkali cake by using hydrochloric acid to obtain a less cerium chlorinated rare earth solution; reducing and dissolving residues by using hydrochloric acid after the hydrochloric acid is preferentially dissolved to obtain a rich cerium chlorinated rare earth solution; after extracting and recovering phosphorus of the rich cerium chlorinated rare earth solution, neutralizing the rich cerium chlorinated rare earth solution to obtain thorium enrichment content; recovering fluorine and sodium hydroxide in a roasted mineral water solution; and after extracting and separating the less cerium chlorinated rare earth solution, recovering calcium chloride. The mixed rare earth concentrate is processed by using the method disclosed by the invention. The continuous production of liquid alkali roasting mixed rare earth concentrate is realized. Tetravalent cerium and trivalent rare earth are separated preferably. Rare earth, thorium, fluorine, phosphorus, calcium and the like are comprehensively recovered. Waste gas and radioactive waste residues are avoided. Cleaner production and resource comprehensive recovery are realized.

The invention discloses a treating method of an arsenious material. The processing method comprises the steps as follows: firstly carrying out normal pressure acid leaching on the arsenic material to make the copper, zinc, arsenic penetrate into the solution and also make the lead, gold and silver concentrate in the leaching slag; employing an extraction method to recover the copper from the leaching liquid rich in copper, zinc and arsenic; performing electrowining on the extracted and back-extracted leaching liquid to produce cathode copper or performing crystallization evaporation to produce cupric sulfate; reducing the extracted leaching liquid with sulfur dioxide to produce arsenic trioxide, then producing arsenic trioxide with purity of 99.9% after washing and drying; returning part of the reduced solution to the oxygen-rich leaching process and performing purification, precipitation and calcinations to obtain superfine zinc oxide powder; and returning oxygen-rich leaching residue containing lead, gold and silver to the recovery process for lead, gold and silver to produce electrolytic lead, silver, gold, antimony, bismuth products. According to the above method, the problem of environmental pollution caused by accumulation and storage of arsenic in the system is solved, and a variety of valuable metals are also comprehensively recycled, thereby improving the comprehensive utilization rate of resources and reducing the environmental pollution.

The present invention is protein feed and its preparation process with potato slag. Protein feed is prepared with waste potato slag from starch production, and through squeezing to dewater, adding certain amount of supplementary material, inoculating certain amount of microbe seed and solid fermentation. The said preparation process is simple, and has high yield, low investment, low power consumption and other advantages. Thus obtained feed product has the fermented product, including microbe, metabolite and substrate utilized fully, and possesses the active components maintained, high amino acid content and high nutritious value.

The prsent invention relates to a high-strength phosphogypsum building block and its preparation method. The raw material component of said block mainly is waste material phosphogypsum produced in the course of production of phosphate fertilizer, and other raw material components includes non-activated compound agent, activated compound agent, accelerator and water. Its preparation method includes the following steps: primary mixing of raw materials, digestion reaction, mainly mixing, press-forming, steam-curing and standing for seasoning. Said block is high in compressino strength, low in unit weight and low in production cost.

The invention relates to an open-pore polyurethane rigid foam prepared from a polyurethane rigid foam degradation liquid. The open-pore polyurethane rigid foam is prepared by reacting the polyurethane rigid foam degradation liquid, a polyhydric alcohol formula composition, a foaming agent and polyisocyanate, wherein the polyurethane rigid foam degradation liquid accounts for 0.1%-15% of the total weight of a material, the polyhydric alcohol formula composition accounts for 20%-52% of the total weight of the material, the foaming agent accounts for 0.3%-15% of the total weight of the material, and an isocyanate index is 70-140. According to the open-pore polyurethane rigid foam, the waste polyurethane rigid foam degradation liquid is firstly used for synthesizing the open-pore polyurethane foam with high aperture ratio and lower density, one the one hand, the problem of environmental pollution brought by a waste polyurethane rigid foam is solved, and on the other hand, the cost of raw materials is reduced, and considerable economic benefit is achieved. The prepared open-pore polyurethane rigid foam achieves the aperture ratio more than 70% and is low in density, thereby being a very good sound absorbing material used in building. The prepared open-pore polyurethane rigid foam is capable of providing an effective technical support for recycling the waste polyurethane rigid foam.

The present invention relates to food producing technology, and is especially making process of fermented plant fiber and protein food. The fermented plant fiber and protein food is made with soybean, peanut, coffee bean, rape, nut and/or nut residue containing plant fiber and protein as material, and through regulating water content to 60-85 %, cooking, fermenting through inoculating some bacterial seed, crushing the fermented product, seasoning and further treating to obtain different types of fermented plant fiber and protein food. The process is simple and feasible, and the food product has complementary and easy-to-absorb nutrients.

The invention belongs to organic fertilizer, and in particular relates to organic fertilizer for killing underground injurious insects and a preparation method thereof. The organic fertilizer comprises the following components in part by weight: 1000 parts of tobacco stalk, 25 to 30 parts of dry livestock manure, 5 to 10 parts of urea and 3 to 5 parts of solid high-efficient microorganism zymogeneous bacteria. The preparation method comprises the following steps that: the tobacco stalk is smashed; the livestock manure is dried and dehydrated; the urea is added to be uniformly mixed; the zymogeneous bacteria is inoculated; the moisture and the pH value are adjusted, fermentation stocks are piled up, and black plastic film covers the fermentation stocks, so the fermentation stocks are undertaken the anaerobic fermentation; after the temperature is increased, the stocks are turned for a plurality of times until the materials are fermented and matured and the size is reduced to two thirds of that of the original stocks; and the fermented stocks are naturally ventilated and dried and are bagged to store. The organic fertilizer has the advantages that the fertilizer efficiency is high, the underground injurious insects can be killed, the content of the organic colloid of the soil is increased after the application of the fertilizer, the fertilizer and water maintaining capacity of the soil is improved, the period of validity of the fertilizer is prolonged, and the probiotics in the soil can be compensated.

A dynamic carbon and static carbon mutual conversion method includes: planting rank vegetations, and repeatedly cutting and storing to convert 'dynamic carbon' in the atmosphere into 'static carbon' in the biosphere; controlling biomass oxidation quantity to balance the total quantity of 'dynamic carbon' in the atmosphere; intervening soil wind erosion, rock weathering, monsoon circulation and ocean current distribution regularities to restrain 'static carbon' in the biosphere, the hydrosphere and the lithosphere from transferring into the atmosphere; increasing biomass in coastal wetlands, continental shelf shallow areas, rivers and lakes to promote 'static carbon' in the hydrosphere to transfer into the lithosphere; replacing fossil fuels with clean energy to reduce incremental quantityof 'dynamic carbon' in the atmosphere; developing new climate economy to increase bio-carbon products and increase storage of 'static carbon' in the biosphere; clearing 'dynamic carbon' in the atmosphere according to physical and chemical methods so as to regulate the greenhouse effect, eliminate dust haze, slow down global climate change speed and prolong survival time of human on the earth.

The invention relates to an enteromorpha absorbent and a preparation technology of the enteromorpha absorbent. The preparation technology comprises the following steps of: washing and drying enteromorpha, grinding in a grinder, sieving with a sieve with 40-100 meshes, mixing the obtained enteromorpha dry powder and 0.1-0.5mol/L of sodium chloride or calcium chloride solution according to a mass ratio of 1:150-200, stirring and extracting for 6-8h at the thermostatic waterbath of 25-30 DEG C; and drying filter cakes for 3-4h in a drying oven with the temperature of 60-70 DEG C after decompression suction filtration to obtain the enteromorpha absorbent. The enteromorpha absorbent provided by the invention is applied to adsorption treatment of heavy metal wastewater, and can be used for effectively removing heavy metal ions in the wastewater. The preparation technology is low in cost, simple in a production technology, wide in application range, and safe and non-toxic, and solves the problem of disaster green alga enteromorpha recycling.

The invention discloses a method for treating artificial wetland breeding wastewater by integration of straw, biochar and organism. According to the method, breeding wastewater passes an anaerobic fermentation tank, three substrate tanks and four wetland tanks in sequence; a substrate channel is arranged between the anaerobic fermentation tank and the first substrate tank, between two adjacent substrate tanks, as well as between the third substrate tank and the first wetland tank; straw is laid in the substrate channels and the substrate tanks; wild plants are added onto the straw; a water blocking drop water dam is arranged at the water outlet of each substrate tank; the wetland tanks are surrounded by ridges; two adjacent wetland tanks are separated through one ridge; overflow openings of which the cross sections are in the shape of an inverted trapezoid are formed in the upper end surfaces of two ridges of each wetland tank; myriophyllum verticillatum is added into each wetland tank; a biochar layer is arranged in front of the overflow opening, near discharged water, of the last wetland tank. According to the method for treating artificial wetland breeding wastewater by integration of straw, biochar and organism, the water quality of the end discharged water is greatly superior to the water pollutant discharge standard of the national breeding industry.

The invention relates to a novel carnation seedling culturing substrate and a preparation method thereof, belonging to the technical field of plant cultivation. The novel carnation seedling culturing substrate is characterized by comprising the following components in percentage by weight: 55-64% of earthworm manure, 10% of fermented coconut husk, 13-19% of vermiculite grains and 13-19% of pearlite grains. The novel carnation seedling culturing substrate has rich nutrition components and stable nature and the content of organic matter is high, so that sufficient nutrition can be supplied to flowers during the entire seedling culturing period. The flower seedlings cultured by using the novel carnation seedling culturing substrate have developed root system, thick and strong seedling stems, high survival rate after transplantation and strong applicability, can enter the flowering period in advance and have multiple anthodia, and the flowers grow vigorously. In the invention, the preparation process of the substrate is simplified, the quality of carnation plug seedlings is improved, the seedling culturing steps of fertilizer application and the like are omitted, and the cost is lowered.