128results about How to "Reduce the content of organic matter" patented technology

The invention relates to a method for promoting sludge to be reduced by ozone, in particular to a technology used for pretreating the sludge and accelerating anaerobic sludge digestion speed by utilizing ozone oxidation technique, which is widely applied to the sludge treatment technique of a sewage plant. The method comprises: the residual sludge of the sewage plant is concentrated and then treated by a sludge pretreatment reactor; due to the strong oxidizing property of ozone, the cell wall and the cell membrane of microorganism inside the sludge are broken, and a great deal of organic matter is released out of cells; after being treated by the ozone, the sludge enters into an anaerobic digestion reactor, and anaerobic digestion can be carried out in a closed anaerobic state; gas generated by digestion is treated by a gas purifying device, and methane can be obtained; after anaerobic digestion, the sludge is treated by flocculation and dehydration, and dewatering sludge can be obtained; then, final treatment can be carried out, for example, the sludge can be used for manufacturing agricultural fertilizer, bricks, porcelain granules or auxiliary fuel of fire coal; and anaerobic supernate is treated by biological filtering bed technique, so that the organic matter, ammonia and nitrogen in the solution can be removed.

The invention relates to a tobacco plantation soil acidification improver and an application method thereof. The improver is prepared from the raw materials of: 20-30wt% of quick lime, 50-60wt% of dolomite powder, 5-10% of lime nitrogen, and 10-15wt% of peat. The application method comprises the steps that: (1) the soil is sampled, and pH value is measured; and (2) according to different pH values, the improver with different dose is applied. With the soil improvement structure, soil caking is prevented, soil organics are supplemented, and soil-borne diseases of tobaccos can be comprehensively controlled. The improver has the advantages of simple preparation method, easy-to-obtain raw materials, and low cost.

The invention relates to the field of industrial production of potato starch and provides a method for recycling potato residue and waste water in the production process of potato starch. The method mainly comprises the following steps of: respectively pulverizing crop straws and porous mineral substances used as a feedstuff additive into certain size of particles as filtering-assisted adsorbing materials through a physical method; and carrying out filtering treatment by stages by utilizing the two filtering-assisted adsorbing materials in a process of recycling potato residue and waste water organic matters generated when processing the potato starch. The recycled organic matters, such as small particle starch, protein, polysaccharide, and the like and the filtering-assisted adsorbing materials can be together used as feedstuff materials, and the purpose of purifying the waste water is also achieved; and the purified water can be used as washing water for potato processing directly or through precipitating.

The invention discloses a biological organic fertilizer with an insect expelling function and a preparation method thereof. The fertilizer comprises the following components: tobacco waste, 1 to 2 percent of calcium-magnesium phosphate, 1 to 2 percent of ammonium sulfate, 3 to 5 percent of waste molasses and 0.3 to 0.5 percent of zymocyte based on the total weight of the tobacco waste; and the zymocyte comprises 20 to 35 weight percent of trichoderma viride, 20 to 35 weight percent of bacillus subtilis, 10 to 20 weight percent of rhizopus oryzae, 10 to 20 weight percent of chaetomium and 10 to 20 weight percent of thermomonospora fusca. The preparation method comprises the following steps of: pretreating the tobacco waste; smashing tobacco waste raw materials into sawdust-like grains of 40 to 60 meshes; then adjusting the carbon-to-nitrogen ratio of the raw materials to 20 to 30:1 with grass peat or straw powder; and then adjusting the pH value to 6.5 to 7.5 with Ga(OH)2 and the water content to 40 to 50 weight percent. Due to the adoption of the biological organic fertilizer with the insect expelling function, nicotine in the raw materials can be preserved to the greatest extent, insect damage degree is lowered, the using amount and times of agricultural chemicals are reduced, the application of the agricultural chemicals is effectively reduced, and the production is environmentally friendly.

The invention relates to a planting method for crops, in particular to a wide-row flat planting protective tillage planting method for maizes. The planting method comprises the following seven steps of: performing land preparation, sowing, rolling after sowing, weeding by pesticides, subsoiling mechanically and performing side deep fertilizing, preventing and controlling diseases and insect pestsand harvesting mechanically. In the planting method, the conventional 60-centimeter uniform ridge planting mode is changed into a flat planting mode of 80-centimeter row pitch and 20-centimeter row spacing, and ventilating and light-transmitting space of the crops is increased; the conventional shallow intertillage and shallow fertilization mode is changed into a mechanical deep scarification anddeep topdressing mode, namely the conventional three-shovel three-time intertillage management and shallow fertilization operation is changed into one-time deep scarification and deep topdressing operation, so operation links are reduced, and the production cost is reduced; the conventional sowing mode is changed into a zero-tillage sowing mode, so the evaporation of soil moisture is reduced, andthe capacity of drought resistance and soil moisture conservation is improved; the conventional mode that harvested low stubbles are crushed to return to a field into a mode that mechanically-harvested high stubbles are rotten naturally to return to the field; and before sowing, seeds are processed by using a plasma seed processing technology to improve the germination percentage of the seeds.

The invention belongs to the technical filed of environmental protection engineering and particularly relates to a harmless treatment method for electroplating sludge. The harmless treatment method comprises the following steps: the electroplating sludge is taken, certain amount of quicklime and flue gas desulfurization gypsum is added, crushed sufficiently and stirred uniformly, the mixture is left to stand for a period of time, and modified electroplating sludge is obtained; the modified electroplating sludge and fly ash are taken and stirred uniformly, a certain amount of a composite activator is added and stirred sufficiently again, and a mixture is obtained; an electroplating sludge test block is obtained in a pressure forming manner and cured in a room-temperature environment for 7-28 days, and a solidified electroplating sludge body is obtained. The harmless treatment method adopted for treating the electroplating sludge has the advantages of simple process, low cost, large electroplating sludge curing amount, small capacity increase and the like, meanwhile, the solidified electroplating sludge body obtained after treatment is highly corrosion-resistant, stable for a long time and low in heavy metal leaching toxicity, has certain compressive strength and can be taken as general solid waste to be subjected to landfill treatment.

The invention discloses device and method for cell wall breaking in a municipal sludge dewatering process. The device comprises an adjusting pond, a stirrer, a hot water tank, a hot water pump, a hot water pipe which is communicated with the adjusting pond through a heat exchanger, a sludge pump, a valve, a sludge inlet pipe which is communicated with the adjusting pond through the heat exchanger, an alkaline liquid tank, an alkaline liquid pump, an alkaline liquid pipe which is communicated with the adjusting pond, and a dewatering machine which is connected with the adjusting pond, wherein the filtrate from the dewatering machine is discharged through the heat exchanger, and the adjusting pond is provided with an alkaline liquid concentration sensor, a temperature sensor and a controller and is in connected connection with the sludge pump, a water pump, the alkaline liquid pump, the motor of the stirrer, the dewatering machine and the valve. The cell wall breaking method comprises the following steps of: (1) performing a pretest; (2) preparing an alkaline liquid; (3) loading sludge to the adjusting pond in which the sludge is preheated; (4) adding alkali to adjust the pH of the sludge and allowing mixed reactions to take place; (5) starting the dewatering machine and a filtrate return device; (6) detecting the sludge mixed reaction results at a preset time, to ensure optimum wall-breaking dewatering effect of the sludge; and (7) repeating from the step (3) to the step (6). The device and method provided by the invention are applied to the wall-breaking treatment prior to the dewatering treatment of the sludge, has a perfect structure, is easy to operate, and improves effects.

The invention provides soil activating powder; the components are as follows in parts by weight: 50 to 70 parts of organic fermentation product, 10 to 25 parts of sucrose, 15 to 35 parts of straw green powder, 5 to 10 parts of bacterial cellulose, 3 to 7 parts of Xanthan, 5 to 15 parts of humic acid, 0.05 to 0.2 part of pH buffer, and 0.1 to 0.5 part of soil disinfectant. The soil activating powder can comprehensively improve and control the physical structure, the fertility, the microbial activity, the water characteristics, the cohesion anti-erosion capability and the like of the soil, has the advantages of strong functions, low cost, simple use, applicability to the improvement of various poor degraded soil and the like, and is mainly used for the improvement of various poor soil.

The invention relates to a special fertilizer for Zhanhua winter jujubes, a preparation method and the application thereof. The special fertilizer for Zhanhua winter jujubes comprises the following raw materials in parts by mass: 50 to 70 parts of zymolysing oil residues, 10 to 20 parts of urea, 5 to 15 parts of DAP (diammonium phosphate), 10 to 18 parts of potassium sulfate, 0.5 to 1 part of ferrous sulphate, 0.3 to 0.7 part of zinc sulfate and 0.2 to 0.4 part of boric acid, wherein the zymolysing oil residue is a product produced by carrying out biodegradation on the oil residues by using lipases in bacillus subtilis fermentation broth and yarrowia lipolytica fermentation broth and proteases in geotrichum candidum fermentation broth and lactobacillus plantarum fermentation broth. The special fertilizer of the invention is prepared especially according to the nutrient status of soils in the main producing areas of Zhanhua winter jujubes and the regulation of nutrient absorption of the jujubes, and has the advantages of reasonable nutrient ratio and strong pertinence. The special fertilizer can reduce the salt damages caused by fertilizing and the organic and inorganic combination can improve the soil fertility.

The invention provides soilless culture matrix for a castanopsis fissa container seedling, and a preparation method for the soilless culture matrix. The soilless culture matrix is characterized by comprising the following components in part by weight: 10 to 15 parts of stacked sawdust of which water content is 40 percent, 0.5 to 1 part of stacked tung bran, 2 to 6 parts of carbonized sawdust, 2 to 4 parts of tanning extract residue, or / and 2 to 4 parts of inorganic matrix, namely one or more of pearlite, vermiculite, and rock wool powder. The preparation method comprises the following steps of: adding the stacked sawdust, the stacked tung bran, the carbonized sawdust, the tanning extract residues or / and the inorganic matrix into a mixing machine respectively, and stirring or manually mixing uniformly to obtain the soilless culture matrix. In the soilless culture matrix, sawdust and tanning extract resources are fully utilized, and the matrix has better physical behavior, is more suitable for growth and development of plant root systems, and has the effects of controlling insects and diseases; the weight of the matrix is half all mud matrix; and transportation cost and forest planting cost are reduced, and the soilless culture matrix has good market application prospect.

The invention relates to a method for preparing marsh gas and producing sintered bricks by using municipal sludge. The method comprises the following steps: supplying steam to a dry anaerobic fermentation tank from a steam boiler, carrying out dry anaerobic fermentation on the municipal sludge, and producing marsh gas and anaerobic fermentation sludge after fermenting; conditioning, modifying and dewatering the anaerobic fermentation sludge, supplying the anaerobic fermentation sludge to a drying device for drying, then crushing the anaerobic fermentation sludge to obtain dry sludge powder; mixing the dry sludge powder with building waste soil and producing brick blanks by extrusion molding; and supplying the brick blanks into a system for producing bricks by using sludge, drying and roasting to produce sintered bricks. The smoke in the system for producing bricks by using sludge can be simultaneously used as the heat source of the steam boiler and the drying device; the marsh gas produced after fermenting the municipal sludge can be used as a heating fuel of the system for producing bricks by using sludge. The method has the technical effects that almost no secondary pollution is generated when the municipal sludge is treated, and the comprehensive utilization of energy can be implemented.

The invention discloses a method for recycling and processing organic sludge as resources. After the solid content reaches the sludge entering standard by concentrating the sludge, the sludge enters a reactor; the organic sludge carries out the start of thermal digestion in the reactor first, and after the start is finished, the temperature of the sludge in the reactor automatically rises to 48-52 DEG C; after the start stage is finished, the sludge is in the operating stage of the thermal digestion, wherein the sludge is acidulated at high temperature by oxygen hydrolysis in a first reaction zone and is aerobically digested at high temperature in a second reaction zone; and after the temperature of the digested sludge discharged by the second reaction zone in the operating stage is lowered by a heat exchanger, the digested sludge is conveyed into a mechanical dehydrator for mechanical dehydration, and then, the sludge is manufactured into sludge cakes to be conveyed outside. The sludge can be processed by the method to be stabilized and harmless, and a large amount of nutrients, such as nitrogen, phosphorus, potassium and the like in the sludge are reserved, thus the sludge can be used as fertilizer or soil improving additives for safe agricultural use to achieve the purpose of using the sludge as resources.

The invention provides a catalytic wet oxidation treatment method of sludge. The method comprises the following steps: 1, dehydrating the sludge, mixing the dehydrated sludge with a separation liquid to prepare a slurry, placing the slurry in a catalyst activator, adding an advanced oxidation oxidant and a catalyst A, and carrying out a reaction at 30-150 DEG C for 20-60 min; 2, pumping a product obtained in step 1 into an oxidation device, adding a catalyst B and an oxidant C, adjusting the temperature to 130-150 DEG C, controlling the pressure to be 1.0-2.0 MPa, and carrying out a reaction for 20-120 min; and 3, carrying out heat exchange cooling treatment on a product obtained in step 2, placing the cooled product in a centrifuge, and carrying out solid-liquid separation to obtain a liquid which is the separation liquid. The method has the advantages of substantial reduction of the water content of sludge, realization of harmless treatment of the sludge, and cost reduction brought by low reaction temperature of a system and short treatment time.

The invention relates to a biodegradation-based sludge brick-making technology. Compared with a traditional technology, the biodegradation-based sludge brick-making technology is characterized in that a step of anaerobic treatment is added. Fermentation is carried out and then filter-pressing dehydration treatment is performed, so that the content of organic matters in sludge is reduced to below 10% and the content of water is reduced to 20%-30%, thereby obtaining brick-making sludge suitable for being added to a brick-making material, such as shale and the like. According to the traditional technology, the filter-pressing dehydration treatment is directly performed, so that the content of water in the sludge is only reduced to about 80% and the content of organic volatile matters is above 20%. Generally, the total added weight of the sludge, which contains 80% of water and more than 20% of organic matters and is added for making a brick, is only 30% of the weight of the brick-making material. In the brick-making sludge which is suitable for being added to the brick-making material and is obtained according to the biodegradation-based sludge brick-making technology, the content of organic matters is reduced to below 10% and the content of water is reduced to 20%-30%, and the total added weight of the sludge used for making the brick can be 40%-60% of the weight of the brick-making material, thereby saving raw materials, lowering cost and greatly promoting the capacity for treating the sludge.

The invention relates to an inorganic conditioning and pin screw machine based integrated sludge deep dehydration treatment process. The process comprises the steps such as primary dehydration, deep dehydration, dehydrated sludge delivery and the like; the moisture content in the sludge is reduced from 99.7% to less than 60% once in two stages by only adopting medication modifying and pin screw machine filter pressing ways instead of depending on any external conditions such as thermal energy and the like. In the whole operation process, no smoke, odor and noise are generated, no external thermal sources are needed, no secondary pollution is caused, the clean production can be realized, and more importantly, an operable approach is provided for waste sludge recycling, so that the process has very important significance in handling a large-area and large-quantity sludge treatment situation on both economic and social benefits.

The invention discloses an alkaline organic fertilizer for restoring soil polluted by heavy metals and a preparation method of the alkaline organic fertilizer, and relates to the technical field of agricultural fertilizers. The alkaline organic fertilizer is prepared from, by weight, 1-3 parts of urea, 1-3 parts of potassium sulphate, 2-6 parts of diammonium phosphate, 10-30 parts of tobacco straw, 30-40 parts of alkaline ash, 15-35 parts of livestock manure, 10-30 parts of bean stalks, 10-30 parts of purple soil, 1-3 parts of microelements, 0.5-1.5 parts of biological bacteria, 3-5 parts of lime nitrogen and 0.02-0.04 part of nitragin. The alkaline organic fertilizer has a good restoring effect on the soil polluted by the heavy metals, is suitable for being used in acidic soil, can be used for farmland soil heavy metal pollution restoration and ecological improvement in southern paddy fields in China, and can also be used for dry farmland soil heavy metal pollution restoration and ecological improvement in the south.

The invention relates to a method of using ferrate for treating sludge and promoting dewatering and anaerobic digestion of excess sludge in sewage treatment plants so as to reduce sludge. The technical scheme of the method is that: after excess sludge is concentrated for 24 hours, concentrated sludge is firstly performed with oxidation treatment through ferrate and then is divided into two lines: one line is to directly add flocculating agent in sludge for dewatering, burying or burning, and the other line is to lead the sludge to enter an anaerobic digestion device so as to lead most of organic matter in sludge to be degraded, and then flocculating agent is added for dewatering, and finally sludge is buried or burned. The method can improve sludge dewatering performance, reduce excess sludge volume, enhance sludge anaerobic digestion performance, greatly improve methane yield, shorten anaerobic digestion time and greatly reduce expanse for sludge treatment and disposition, has the advantages of being simple in device, small in investment, free of pollution, convenient to operate and manage, high in economic benefit and the like, and is applicable to the industry and town sewage treatment plants.

The invention provides modified kieselguhr of which the tap density is 450-490 kg / m<3> and a preparation method thereof. The method comprises the following specific steps: acquiring kieselguhr; and adding sodium carbonate into the kieselguhr, heating, then activating at a high temperature of 900-1100 DEG C, and crushing. The modified kieselguhr provided by the invention has the characteristics of high whiteness, low tap density and high strength and has favorable adsorption property and heat-insulating property. Besides, the invention also provides an indoor decorative material containing the modified kieselguhr of which the tap density is 450-490 kg / m<3>, calcium hydroxide, sepiolite and film-forming assistant, and provides a preparation method thereof. The material is low in organic substance content, is nonvolatile, has high whiteness, low tap density and high strength, and ensures that the material can not volatilize harmful gas while ensuring favorable adsorption property and heat-insulating property, thereby being safer and more environment-friendly.

The invention relates to a special fertilizer for Laiyang pear, and the special fertilizer is prepared by precisely compounding the hydrolysate of by-product oil sludges in an oil pressing factory with inorganic chemical manure urea, monoammonium phosphate, potassium sulfate as well as microelement zinc sulfate and boric acid. The fertilizer is specially suitable for the soil condition of Laiyang pear fields and is beneficial to increasing the output and quality of the Laiyang pear.

The invention discloses multi-type perishable garbage synergistic anaerobic digestion treatment equipment and treatment method. The equipment comprises a kitchen garbage treatment system, a garden stuff garbage treatment system and an after-treatment system, wherein the kitchen garbage treatment system and the garden stuff garbage treatment system are linked with the after-treatment system separately. According to the invention, the equipment is merged into a wet process anaerobic fermentation technology production line to be treated, so that the defect that the single technology treatment cannot realize comprehensive resource utilization of organic matters and various nutrient elements in kitchen waste is effectively avoided, and the resource utilization level of kitchen waste is increased. The equipment is provided with a middle storage silo and a wringing machine with the water drainage function, so that the problem that after garbage classification, excessively high water content of high-purity perishable garbage cannot meet the index requirement of material solid content from the dry method anaerobic fermentation technology is solved.

The invention discloses a biogas slurry modification technological method, relates to the field of biogas slurry treatment. The biogas slurry modification technological method comprises the followingsteps of first, biogas slurry preparation; second, oxidization modification; third, secondary catalytic reaction; and fourth, flocculating setting. The invention further discloses a technology and a device of biogas slurry catalytic oxidization modification. A micro-nano bubble generator is arranged at the bottom of a catalytic oxidization reaction tank. An ozone catalyst fixed bed is arranged above the micro-nano bubble generator. Catalyst is granular and has the gap filling rate of 30% or more. A nano-iron mediate ultrasonic device for stir is arranged in a secondary reaction tank closely connected with the oxidization reaction tank. According to the biogas slurry modification technological method, biogas slurry deodorization and secondary decomposition of antibiotics and organic matterin the biogas slurry are carried out quickly in a catalytic ozonation manner, metal ions in biogas slurry are oxidized, the biogas slurry is lower in viscosity because of modification, the valence ofmetal ions is increased, and because of flocculating setting, it is achieved that biogas residues and partial metal salt are removed.

The invention provides a sludge anaerobic treatment method and a system. The sludge anaerobic treatment method and the system aim at solving the problems of high content of organic matter and large output of biogas residue in the traditional anaerobic digestion biogas residue; the sludge is pretreated by a hot hydrolysis method, a hydrolysate is used for anaerobic digestion, the biogas residue flows back into the hot hydrolysis stage, and the hot hydrolysis sludge is discharged out. The sludge anaerobic treatment method and the system have the advantages that the amount of discharged sludge issmall, the content of water in the discharged sludge is low, the content of organic matter in the discharged sludge is low, and the output of biogas is high.

An interplantation method for peanuts and daylilies on red soil gentle slope dry land comprises the steps of setting at least one interplantation unit and controlling the wide and narrow row spacings of daylilies during interplantation of the peanuts and the daylilies. The narrow row spacing is 0.40 to 0.90m with 2 to 3 rows of daylilies; the wide row spacing is 10.00 to 13.92m; peanuts can be grown in the wide row spacing for 30 to 42 rows; and a safety distance between the daylilies and the peanuts is 0.36 to 0.40m. By the use of the interplantation method, obvious yield increasing effect can be achieved; water and soil loss can be prevented, so obvious red soil gentle slope dry land modification effect can be realized; field trial proves that peanuts output can increase by 10.57 to 12.82%, daylilies output can increase by 2.36 to 4.87%, and production value can obviously increase by 372.14 to 402.58yuan / mu, so peasant income can be obviously increased; the interplantation method can work as a technical support for popularization of plant hedge row-crop planting on red soil gentle slope dry lands; and the interplantation method can be suitable for large scale promotion and application in Chinese southern red soil gentle slope dry lands.

The invention discloses a flow control microbubble-ozone coupling based water treatment device and a water treatment method. The device comprises an oxygen supply source (1), an ozone generator (2), apressure adjustment filter component (4), a flow control component (6) and to-be-treated water tank (7) that are sequentially and mutually connected through flow guide pipes (9) and further comprisesan ultrasound component (11), wherein the to-be-treated water tank (7) is internally provided with ultraviolet radiation components (10). According to the device and the method, a microbubble technology is used for quickly improving ozone mass transfer efficiency and ozone solubility; at the same time, ultrasound is used for inducing microbubble breakage to generate free radicals; synchronous ultrasound cavitation pyrolysis and ultraviolet radiation promote ozone to generate the free radicals to improve productivity of the free radicals; the device and the method are applied to deep treatmentof secondary effluent of an urban sewage plant; an organic content of the secondary effluent is reduced; an organic matter structure of the secondary effluent is changed; and the biodegradability ofthe secondary effluent is improved.

A decomposition method of effluent oil sludge is characterized in that the effluent oil sludge is added into a treatment tank which can be heated up, according to the weight percentage in the effluent oil sludge, sodium metasilicate, polyether polylol and ethylene diamine tetraacetic acid are added to mixed evenly with the effluent oil sludge, and is reacted to the effluent oil sludge under the condition of being heated up, thereby ensuring that oil, mud and water are separated completely, oil at the upper layer is extracted, and the treatment without social effects of pollution is performed for the rest mud and water. The sodium metasilicate, the polyether polylol and the ethylene diamine tetraacetic acid which are added according to the weight percentage in the effluent oil sludge are respectively 2.5 to 3.0 percent, 0.3 to 0.5 percent, and 0.05 percent. The sodium metasilicate, the polyether polylol and the ethylene diamine tetraacetic acid react to the effluent oil sludge under the condition of being heated up to 70 to 85 Deg C. The three articles are innoxious and are all neutral materials, no secondary pollution is caused, a little dosage is needed, and the decomposition of effluent oil sludge is complete. The invention has the advantages of wide raw material sources, lower price, simple technique and easy operation.

The invention relates to the field of organic synthesis, and discloses a preparation method of 1,3-cyclohexanedione. The method comprises the following steps: 1, in the presence of water, hydrogenating resorcinol to obtain a reaction solution containing a compound represented by the following formula (1), acidifying the reaction solution to obtain an acidified solution, and crystallizing the acidified solution to obtain a 1,3-cyclohexanedione product and an acidified mother liquor; 2, in the presence of an organic solvent, enabling the acidified mother liquor to be in contact with a complexingagent to complex 1,3-cyclohexanedione with the complexing agent, and obtaining an organic phase; 3, making the organic phase obtained in the step 2 contact the reaction solution, adjusting the pH value to 7-14 so as to make the 1,3-cyclohexanedione be dissociated from the complexing agent, and obtaining a water phase; and 4, adjusting the pH value of the water phase obtained in the step 3 to 1.0-2.5, and carrying out solid-liquid separation to obtain the 1,3-cyclohexanedione product. The preparation method disclosed by the invention has the advantages of high purity and high yield of the prepared 1,3-cyclohexanedione.

The invention discloses pseudomonas fluorescens as well as a method for preparing a hydroxamic acid type iron carrier by utilizing the pseudomonas fluorescens and an application thereof. According to the invention, the hydroxamic acid type iron carrier is generated by utilizing the culture process of Pseudomonas fluorescens fluorescens strain HMP01, and the hydroxamic acid type iron carrier has a chelating effect on heavy metals, and has a solubilizing effect on organic matters, cationic heavy metals, polycyclic aromatic hydrocarbons, petroleum hydrocarbons and composite pollutants thereof in weakly acidic, neutral and weakly alkaline soil of agricultural lands, industrial and mining areas, oil production areas and the like can be efficiently removed in an ex-situ leaching or in-situ leaching mode, and the hydroxamic acid type iron carrier is simple in preparation process, low in cost, high in leaching efficiency and free of secondary pollution.

The invention relates to a method for preparing a microwave absorbent by the utilization of municipal dewatered sludge and belongs to the field of environmental geotechnics. The method comprises the following steps: S1, adding 0.01-0.5 part by weight of a photocatalyst, 0.1-2 parts by weight of an extractant, 1-15 parts by weight of a wave-absorbing agent and 0.1-5 parts by weight of an exciting agent into 100 parts by weight of municipal dewatered sludge; S2, uniformly mixing the municipal dewatered sludge with the photocatalyst, the extractant, the wave-absorbing agent and the exciting agent which are added in the step S1; and S3, putting the above sludge mixture into a microwave oven to undergo microwave treatment so as to obtain a microwave oven microwave absorbent for raising heating efficiency. Wastes are changed into valuable things. Solid waste material sludge can be converted into the microwave absorbent. By using the microwave absorbent as an additive, microwave heating efficiency can be greatly enhanced. Meanwhile, the method has advantages of efficiently reducing active organic matter in sludge, passivating inert organic matter and greatly reducing sludge volume, etc.

The invention provides an animal and plant co-culture device, and belongs to the field of aquatic animal and plant viewing. The device comprises a top box, a cylinder bearing the top box and a base bearing the cylinder. The top box is provided with a water pipe installation opening, a water inlet, a feeding hole and a cleaning hole. The top box is partitioned into a plurality of planting grooves through a plurality of groove plates. A drainage opening is formed in the lower end of the cylinder, and a timing loop jet pump is arranged inside the cylinder, surrounded by an isolation net and connected with a water pipe installation opening in the top box through an exhaust pipe; an air supply pipeline is arranged in the cylinder, two to three air holes are formed in the portion, at the bottom of the cylinder, of the lower end face of the air supply pipeline, and oxygen can be supplied to the cylinder by arranging a micro oxygen supply machine outside the cylinder, and an LED and other connecting wires are arranged inside the base. The device can achieve co-culture of fish, shrimp and aquatic plants, the device can achieve self-cleaning and self-circulation, and the device has the high scientificity, ornamental value and high economic value.

The invention provides an environment-friendly particle bioorganic fertilizer, which comprises the following raw materials in parts by weight: 45-65 parts of animal and poultry excrements, 20-40 parts of waste edible fungi sticks, 8-15 parts of humic acid, 5-15 parts of oil residues, 0.05-0.1 part of leavening agent strain, 0.5-1.5 parts of zinc sulfate, 0.2-0.6 part of boric acid, and 1.0-2.0 parts of ferrous sulfite. The preparation method comprises the steps of mixing animal and poultry excrements, waste edible fungi sticks, oil residues, humic acid and other trace elements to form a fermented material stack; adjusting the moisture content of the mixture to about 60-70%; heating for sterilization by virtue of biological fermentation so that the moisture content of the mixture is further reduced, and the volume is reduced; and carrying out clashing and pelleting, and drying and cooling to prepare the organic fertilizer. According to the invention, the harmless and recycling requirements can be achieved.