40results about How to "Lower carbon to nitrogen ratio" patented technology

The invention provides a vegetable residue, crop straw and livestock and poultry excrement combined composting process. An aerobiotic and anaerobic combined composting mode is adopted in the process. The process comprises the steps of material pretreating, mixing, composting, primary fermenting, secondary fermenting, thorough decomposing, sieving or smashing, compost preparing and the like. Crop straw with a high-carbon nitrogen ratio is used, and the problems of high moisture content, low carbon-nitrogen ratio and poor air permeability existing in the high-temperature aerobiotic composting process of vegetable residues are effectively solved; according to the process, the nutrients and moisture of the vegetable residues can be utilized, harmless treatment can be carried out on the vegetable residues, the crop straw and livestock and poultry excrement through high-temperature composting, organic compost is produced, and resource utilization of planting and breeding waste is achieved.

The invention discloses cellulase-producing Bacillus and application thereof and belongs to the technical of environmental biology. Bacillus thermolactis strain B209 has good ability to degrade natural cellulose, can well grow with other strains, and has scientific and reasonable ratio; compost made by using the Bacillus thermolactis strain to carry out piling can be heated for a short time; the high temperature lasts long; cellulose degradation rate is high; compost reaction speed can be effectively increased; harmless effect of the compost can be improved; the Bacillus thermolactis strain has a very promising application prospect.

The invention discloses an organic fertilizer used for greenhouse strawberries. The organic fertilizer is prepared from the following components in parts by mass: 50 to 65 parts of special mixed animal manure, 15 to 18 parts of straw powder, 5 to 10 parts of peanut shell powder, 130 to 150 parts of rice-rinsing water, 10 to 20 parts of vinasse, 3 to 8 parts of strains and 2 to 4 parts of a traditional Chinese medicine solution. By adopting a modern science and biological technology, the raw materials are scientifically blended, and are rich in a plurality of types of microelements including nitrogen, phosphorus, potassium and the like needed by the growth of the strawberries; the traditional Chinese medicine solution is matched, so that balanced and comprehensive absorption of the microelements by the strawberries can be promoted, growth and root development of the strawberries are promoted, physiologic diseases are prevented from occurrence, and the growth of the strawberries is facilitated; the stink odor also can be eliminated and the grown strawberries have high adaptability, can resist gray mold and powdery mildew and have relatively large fruits; the average single fruit weight of first-grade and second-grade fruits is 42g and the maximum fruit weight is more than 100g; the surfaces of the fruits are flat and smooth, and have waxy color and luster, red pulp, suitable sour and sweet taste and rich aroma; the content of soluble solid matters is 10 percent to 11 percent, and the content of soluble total sugar reaches 9.47 percent; the fruits have great rigidity and can be stored and transported for long time and long distance.

The invention discloses a pollution-free strawberry fertilizer which is composed of the following components in parts by mass: 80-85 parts of rabbit/cattle mixed fecaluria, 5-10 parts of wheat straw powder, 3-5 parts of dry spent grain, 3-6 parts of tangerine peel, 2-3 parts of strain, 160-170 parts of rice washing water and 2-5 parts of pesticide. By adopting the modern technology and biotechnology, the pollution-free strawberry fertilizer is prepared from the rabbit/cattle mixed fecaluria, wheat straw powder, dry spent grain, tangerine peel, strain and rice washing water used as raw materials which are proportioned scientifically. The produced fertilizer contains rich nitrogen, phosphorus, potassium and many other minor elements required by strawberry growth, and is matched with the pure traditional Chinese medicine pesticide. 60-70kg of the pollution-free strawberry fertilizer is applied to every mou of land; the application mode is mainly furrow application, hole application or any other centralized application mode; and soil is covered after application. The pollution-free strawberry fertilizer can promote the balanced strawberry plants, enable the strawberry plants to comprehensively absorb minor elements and promote the growth of strawberry plants and the development of the root system. The pollution-free strawberry fertilizer can implement pest killing, sterilization and disinfection, can prevent diseases and pests, and has the advantages of no-pollution and low cost. The strawberries have the advantages of bright color, full fruit, favorable mouthfeel, storage and transportation resistance and high disease-resistance.

The invention discloses an organic fertilizer and a preparation method thereof. Cockroaches are adopted for biological conversion treatment on kitchen wastes, and excrement generated when the kitchenwastes are treated by using the cockroaches can be used as an organic fertilizer. The organic fertilizer disclosed by the invention has the advantages of being good in dryness, free of smell, small insize and easy to store, meanwhile is high in nitrogen phosphorus and potassium content, rich in trace element, low in heavy metal content and is an ideal organic fertilizer. By adopting the preparation method, a great amount of high-quality cheap fertilizers can be produced, the kitchen wastes are ecologically treated, and not only are problems of social environment sanitation caused by the kitchen wastes and human health influence caused by the social environment sanitation solved, but also great economic benefits can be made.

The invention discloses a method for cultivating snails with a composted material. The method comprises the following steps: (1) preparation of a composted material: uniformly mixing animal feces, straws, cottonseed cake, peanut cake, fruit skin, bean dregs, fish viscera and eggshells according to parts by weight, passing a 40-mesh sieve after drying and crushing, adding 150 to 200 parts by weight of water and 2 to 5 parts by weight of compound bacteria liquid, fermenting for 3 to 5 days at a temperature of 40 to 52 DEG C in a sealing way, taking out and oxidizing for 12h, refrigerating for 23 to 48h at a temperature of 4 to 8 DEG C, fermenting for 30 to 35 days at a temperature of 45 to 60 DEG C in a sealed way, and finally spray-drying to obtain the composted material; (2) culture pond management: after laying a layer of composted material at the bottom of soil, covering soil, and injecting into pond water with a height of 35 to 50cm to be soaked for 40 to 52 days; (3) feeding management. According to the technical means adopted by the invention, the effects of reducing the amount of feed, shortening the cultivating time, and increasing the output of snails are achieved.

The invention discloses a water-soluble carbon fertilizer containing microbial flora. The water-soluble carbon fertilizer is prepared from the following raw materials in parts by weight: 0.5 to 5 parts of microbial agent, 12 to 40 parts of synergist, 0.2 to 1 part of protective agent and 54 to 87.3 parts of molasses-alcoholic waste liquid. The invention further discloses a preparation method of the water-soluble carbon fertilizer containing the microbial flora. The water-soluble carbon fertilizer can be absorbed by crops and soil microorganisms and improves crop and soil microenvironment microcirculation.

The invention discloses a synergistic pest-expelling organic fertilizer special for strawberries.The synergistic pest-expelling organic fertilizer is prepared from, by mass, 65-75 parts of mixed feces and urine of dogs and cows, 5-8 parts of corn stalk powder, 6-10 parts of cassava vinasse, 3-5 parts of air-dried banana peel, 2-3 parts of strains, 130-140 parts of rice washing water and 1-4 parts of pest expelling liquid.The synergistic pest-expelling organic fertilizer special for the strawberries is prepared from the mixed feces and urine of the dogs and the cows, the corn stalk powder, the cassava vinasse, the air-dried banana peel, the strains and the rice washing water by adopting a modern science and technology biotechnology, the selected raw materials are scientifically proportioned, and the produced fertilizer is rich in multiple trace elements such as nitrogen, phosphorus and potassium which are needed by growth of the strawberries; by adding the pest expelling liquid in a matched mode, balanced and comprehensive trace element absorption, the growth and root system development of the strawberry plants can be promoted, pest expelling, sterilizing and disinfecting on soil can be achieved, and diseases are prevented from occurring; the fertilizer is green, environmentally friendly, low in cost, scientific in proportion and good in pest expelling effect, and the grown strawberries are bright in color and luster, full in fruit, good in mouthfeel, resistant to storage and transportation and high in disease resistance.

The invention relates to a method for realizing deep decarbonization and denitrification through treating sludge digested fluid of a municipal sewage plant by adopting semi-short-range nitrification-anaerobic ammonium oxidation-electrooxidation and belongs to the technical field of denitrification and decarbonization of the sludge digested fluid. Anaerobic ammonium oxidation is realized in a SBR (Sequencing Batch Reactor), and then, the autotrophic denitrification of the sludge digested fluid is realized; the deep removal of ammonia nitrogen and total nitrogen from the sludge digested fluid isrealized through the anaerobic ammonium oxidation without additionally adding a carbon source; refractory organic matters are deeply removed from the sludge digested fluid through electrooxidation toachieve deep denitrification, and thus, the problems of merged treatment of the sludge digested fluid that the quality of yielding water of the sewage plant is lowered, and independent treatment is high in cost are solved. Through SBR-EO combination, anaerobic ammonium oxidation denitrification is achieved in the SBR, refractory matters in the yielding water are degraded in an electrooxidation reactor through hydroxyl free radicals with high oxidizability produced on an anode, and thus, the economical efficient decarbonization and denitrification of the sludge digested fluid are achieved. Concentrations of the organic matters, total nitrogen and ammonia nitrogen of final effluent are only 60 to 80, 8 to 12 and 20mg/L to 30mg/L, and the removal rate of each of the organic matters, total nitrogen and ammonia nitrogen reaches up to 95% or more.

The invention discloses a septic tank and sewage treatment method using pretreatment and biological contact in the technical field of treatment of domestic sewage. The septic tank which adopts pretreatment and biological contact includes a pretreatment aeration pool, a pretreatment sedimentation pool, an anaerobic fermentation pool, a biological contact oxidation pool, a secondary sedimentation pool and a blower, wherein a water inlet pipe is arranged on the pretreatment aeration pool, a first overflow plate is arranged between the pretreatment sedimentation pool and the pretreatment aerationpool, and the anaerobic fermentation pool is a sealed cavity. Sewage is pretreated under the condition of aeration firstly, organic matter and suspended matter in the sewage are adsorbed by sludge, and therefore the obtained sewage has a low carbon-nitrogen ratio; sedimentation of the sludge is performed in the pretreatment sedimentation pool, only the liquid is discharged, and solid matter whichcarries parasite eggs is left, so that anaerobic sterilization and egg killing are achieved; denitrification and phosphorus removal are performed, so that organic matter is reduced, and the sewage ispurified effectively; finally resting sedimentation is performed so that excessive SS which is caused by biofilm falling off and aeration agitation can be avoided; therefore, the method has a good treatment effect on organic matter, nitrogen, phosphorus and other matter.

The invention belongs to the technical field of organic fertilizers, and particularly relates to a straw decomposed organic fertilizer and a preparation method thereof. The straw decomposed organic fertilizer is prepared from the following components in parts by weight: 200-400 parts of crop straw, 50-80 parts of vegetable leaves, 20-40 parts of animal waste and 0.5-1.0 part of a composite microbial decomposition agent; wherein the composite microbial decomposition agent comprises pseudomonas stutzeri, penicillium oxalicum, rhizopus oryzae, trametes versicolor and white rot fungi. Crop straw, vegetable leaves and animal waste are mixed in proportion to serve as an organic material, the carbon-nitrogen ratio of a single straw organic matter can be reduced, and the situation of nitrogen deficiency after the fertilizer is applied to soil is avoided. By adding the composite microbial decomposition agent, the time required for decomposition can be greatly shortened, the reduction speed of the carbon-nitrogen ratio is increased, preservation of nitrogen, phosphorus and potassium in compost and increase of organic matters are facilitated, and nutrient balance is promoted. After the fertilizer is applied to soil, the content of organic matters and available nutrients in the soil can be increased, acidified soil is improved, and soil fertility is increased.

The invention relates to the field of agricultural organic fertilizers, and discloses an organic water-fertilizer for promoting high yield of pearl guava. A preparation method of the organic water-fertilizer comprises the following steps: retting 5 to 10 percent of dried small shrimps, 15 to 20 percent of fishbone, 15 to 20 percent of diatomaceous earth, 20 to 40 percent of bran, 10 to 20 percent of rice stem, 1 to 3 percent of EM (Effective Microorganism) bacteria liquor and 5 to 10 percent of flaccid knotweed herb; stirring and mixing animal urine, the retted materials and water. The water-fertilizer is slightly applied to seedlings of the pearl guava, so that the problems of soil hardening, low fertility of applied organic fertilizers and existence of pathogenic bacteria due to inconvenience in fertilization and application of an inorganic fertilizer in the conventional planting and fertilizing process of the pearl guava are solved.

The invention belongs to the technical field of organic fertilizer production and particularly discloses a livestock manure-based organic fertilizer and a processing method thereof. The livestock manure-based organic fertilizer is composed of livestock manure, microbial agent, urea, molasses, bran, lime, sludge, bentonite, inorganic nutrients and trace elements. The processing method of the livestock manure-based organic fertilizer comprises the following steps of S1, activation of the microbial agent, S2, mixing the raw materials, S3, fermentation, S4, aging and S5 crushing and pelletizing. The livestock manure-based organic fertilizer and the processing method thereof well solves the problem of pollution of livestock manure to the environment and achieve resource reutilization, thereby being green and environmentally friendly; meanwhile, the livestock manure-based organic fertilizer can reduce the carbon-nitrogen ratio of soil, and meanwhile produce and release intermediate metabolites which can be used by soil microorganisms, thereby increasing the bioactivity, ensuring sufficient absorption of nutrient elements by crops and improving the crop yield.

The invention relates to a method of fermenting pig manure in a biogas digester; the method comprises (1) pretreating pig manure; (2) adjusting carbon-nitrogen ratio; (3) performing anaerobic fermentation. According to the method of fermenting pig manure in the biogas digester, before pig manure is added into the biogas digester, suitable EM (effective microorganisms) are added into the pig manure and are mixed well and fermented by piling, the EM can effectively decompose matters that kill bacteria and greatly inhibit the growth and breeding of methane bacteria, as well as other toxic matters, most of the matters adverse to the fermentation of the pig manure are decomposed into fermentable organic compounds such as proteins and cellulose, some of the proteins provide energy for the growth and breeding of methane bacteria, mass methane bacteria are produced during fermenting, pig manure fermenting speed can be increased, and the pig manure can be fermented completely; suitable tea seed dregs and peanut shells are added into the pig manure, pig manure carbon-nitrogen ratio is suitably increased, and it is avoided that failure of normal fermentation is caused by too low carbon-nitrogen ratio and a stock solution being easy to acidify.