832results about How to "Improve environmental benefits" patented technology

The invention discloses a microgrid operation optimizing method by considering combined supply of cooling, heating and power with a stored energy operation strategy.The microgrid operation optimizing method comprises the following steps of: establishing a CCHP (combined cooling heating and power) microgrid optimizing model; constructing a target optimizing function with a target of lowest generating cost under a microgrid grid-connected operation state; according to the established target optimizing function, comprehensively considering load level of front and time periods with an output trend of each micro power supply, and determining the operation principle of an energy storage unit and a fuel battery to determine the best operation mode of the whole CCHP system in a scheduling period. The microgrid operation optimizing method disclosed by the invention has the beneficial effects that the microgrid electricity selling profits can be effectively increased for energy storage optimization, obvious advantages are provided in lowering the operation cost of the microgrid; the energy resource utilization rate of the stem can be improved and the energy gradient utilization can be realized in comparison with the conventional heat-engine plant and thermal power plant, so that reference is provided for energy saving of the power system; moreover, the energy is saved and the emission is reduced, pollution of air pollutants is greatly reduced, and significance is achieved in improving environmental benefits.

The invention discloses a new method for large-scale production of calcium sulfate whiskers, which is characterized in that a large number of cheap water-soluble Ca2+ and water-soluble SO42- ions are used at a certain pH, salt-containing impurities and whisker control agents and a certain synthesis Calcium sulfate whiskers were synthesized under conditions such as , aging, and temperature. The invention has the advantages of simple process, low investment, low cost and excellent products. It can be co-produced with various existing processes containing Ca2+ and SO42-, can eliminate the waste water and waste residue pollution of these processes, and can greatly improve these co-production processes. economic benefits.

The invention relates to an electric-automobile-contained micro electric network multi-target optimization scheduling method. The method is characterized by comprising steps that, 1), a mode of access of an electric automobile to a micro electrical network is determined, discharging and charging load distribution characteristic superposition of a single electric automobile under different access modes is carried out to obtain discharging and charging load distribution characteristics of the electric automobile; (2), the electric automobile is taken as a micro electric network scheduling object which is added for electric network optimization scheduling, and an micro electric network scheduling model in consideration of large-scale electric automobile access is established according to the discharging and charging load distribution characteristics of the electric automobile; and 3), a particle swarm optimization algorithm based on the automatic recombination mechanism is employed to solve the micro electric network scheduling model in consideration of large-scale electric automobile access, economical efficiency of micro electric network scheduling under various scheduling strategies is compared and analyzed, and thereby the optimum scheduling strategy is obtained. Compared with the prior art, the method further has advantages of comprehensive consideration and effective and feasible performance.

The biphase anaerobic fermentation process of kitchen refuse to produce hydrogen and methane includes the following steps: 1. sorting kitchen refuse and mixing with water in certain amount; 2. mixing with sludge from sewage treating yard and heat treatment; 3. heat exchange between heat treated mixture and mixture without through heat treatment; 4. anaerobic fermentation of the heat treated mixture in the first phase to produce hydrogen; 5. anaerobic fermentation of the residue from the first phase fermentation in the second phase to produce methane; and 6. using the residue from the second phase fermentation as fertilizer or returning to replace sludge serving as hydrogen producing bacteria source. The process is simple, can recover the biomass energy from kitchen refuse effectively, and has no secondary pollution.

The invention relates to a carbonization system of an oil shale fluidized bed. Oil shale with high oil content and low pyrolysis temperature is used as a carbonization material; high-temperature steam-gas and circulating hot ash are utilized to fluidize and heat the oil shale in a carbonization chamber of the fluidized bed; after ash removal, mixed airflow of generated shale oil and noncondensable gas and vapour in the carbonization chamber of the fluidized bed enters a cooler; the condensed oil-water mixture is divided into shale oil and water through the oil-water separator; the shale oil is transported to a shale oil storage tank; the water is purified and is conducted to the cooler; and noncondensable gas which is not condensed through the cooler is transported to a fuel gas storage tank. Oil shale carbocoal produced through the carbonization chamber of the fluidized bed is directly transported to a boiler of an oil shale carbocoal circulating fluidized bed, is burned and discharges heat; one part of the produced steam-gas is used as fluidized wind of the carbonization chamber of the fluidized bed; the residual steam-gas is conducted to a steam turbine-dynamo system, applies work and generates electricity; and part of circulating ash in the boiler is used as a heat source of the carbonization chamber of the fluidized bed. The carbonization system can realize high-efficient, clean and economic comprehensive utilization of the oil shale.

The invention discloses a method for classifying, treating and recycling plating washing water on line, which comprises the following steps of: removing oil, coarsening, reducing, activating, peptizing, chemically plating nickel, preplating nickel, plating copper, plating nickel and plating chromium in a plating process; and treating water and washing water during production and cleaning. The method specifically comprises the following steps of: preparing pure plating water, circularly processing acid and alkaline waste water, coarsening, circularly treating chromium-plating washing water, circularly treating chemically nickel-plating washing water, circularly treating copper-plating washing water and circularly treating nickel-plating washing water. Waste water in each procedure is directly used beside a tank edge in a closed cycle by an economical and effective means after being treated, no wastewater is discharged, and the cross contamination of different water qualities among the procedures is avoided. The method is a technological innovation for realizing zero emission of plating waste water and plating cleaner production.

The invention relates to a coated compound fertilizer, in particular to a totally biodegradable coated compound fertilizer and a preparation method thereof. The coated compound fertilizer consists of a coated layer and a compound fertilizer core. The main body of the coated layer is polylactic acid and/or polybutylene succinate. The coating process adopts fluidized bed spraying-coated technology, and comprises the following steps: dissolving polylactic acid and/or polybutylene succinate in trichloromethane, adding carboxymethylcellulose, urease and/or nitrification inhibitor, organic and/or inorganic conditioner in the solution, spraying and coating the surfaces of the fluidized compound fertilizer granules after uniformly mixing the mixture under the stirring of a stirrer to form the uniform and complete organic polymeric membrane layer. The process has the advantages of easy implementation, and capacity of effectively slowing down the release of the fertilizer nutrient to the outside and the conversion rate of nitrogen in soils, effectively controlling the release and conversion of the fertilizer nutrient in soils, and reducing the pressure on environment caused by the rapid release of nutrient. The coated material can be totally biodegradable, and the degradation products have no secondary pollution to the environment.

A process for preparing acetylene by using hot plasma to crack the gas containing methane includes such steps as using plasma generator to ionize the argon or N2 or H2 to form a plasma jet, spraying raw gas via a gas inlet ring in reactor, mixing the plasma jet with the raw gas in the reactor, cracking reacting, and quickly cooling the cracked gas in an expansion cavity of cooler to obtain acetylene, carbon black and H2.

An oil shale rotary kiln dry distillation and circulating fluidized bed combustion process makes organic combination of a rotary kiln dry distillation with a circulating fluidized bed; oil shale particles are mixed with thermal-cycle ash from a circulating fluidized bed boiler and part of circulating fluidized bed boiler bottom ash, and then are sent into a rotary kiln for dry distillation to prepare shale oil and dry distillation coal gas; the dry distillation coal gas has a high calorific value; a part of the coal gas is used as recycle wind of a semicoke material recycle device, and enters the circulating fluidized bed boiler with oil shale semicoke particles for combustion, and the residual part is delivered into an internal combustion engine for combustion generation. The invention can increase shale oil and coal gas quality, reduce energy loss and environment pollution, and improve the comprehensive utilization degree.

The liquid fertilizer is compounded with potassium dihydrogen phosphate, potassium nitrate, boric acid, urea, calcium nitrate, magnesium sulfate, zinc sulfate, copper sulfate, manganese sulfate, nickel sulfate, ammonium molybdate, iron trichloride or ferrous sulfate, sodium silicate or sodium metasilicate, cane sugar or glucose, nitric acid, phosphoric acid, alcohol, rosin and sulfuric acid. Applying the liquid fertilizer can avoid pollution to soil, environment and river, and its application is saving in labor. The liquid fertilizer is non-toxic, harmless and pollution-free.

The invention discloses a compound constructed wetland tail water treatment system, which belongs to the field of sewage treatment technology. The system mainly includes a pretreatment and a constructed wetland system. The pretreatment portion comprises an aeration oxidation pool and an ecological gravel bed; The constructed wetland system fuses a design of stabilization lagoon, which combines a vertical current constructed wetland and a surface flow constructed wetland, and a stabilization lagoon is arranged in step in series; the tail water to be treated passes the aeration oxidation pool, the ecological gravel bed, the vertical current constructed wetland, the stabilization lagoon in order, and finally passes the surface flow constructed wetland and flows out. The system combines physical, chemical and biological means organically, thereby effectively improving the tail water quality, and the water quality of water outlet basically reaches the surface water environment standard III grade, and the water outlet can directly returns to river ecological environment for supplementing water and can be used as city miscellaneous water; the invention has the advantages of low investment, simple operation, low energy consumption, high environment benefit and ecological benefit, etc.

The invention relates to a modified biochar material for removing arsenic, and preparation and application thereof. The preparation method comprises the following steps: adding biomass raw material powder into an ultrasonically-dispersed suspension of red mud and water, stirring the suspension to mix uniformly, and performing solid-liquid separation; roasting a obtained mixture of biomass and the red mud in a non-oxidizing atmosphere at the roasting temperature of 550 to 650 DEG C to obtain a carbonized product, namely, the modified biochar material. The modified biochar material is wide in raw material source, is convenient to prepare, has relatively high adsorption performance for arsenic-containing wastewater, is easy for large-scale production, and has a good application prospect.

The invention belongs to the fields of metallurgy and inorganic nonmetal materials, and provides a continuous casting and rolling method and device for producing glass ceramics by utilizing blast-furnace molten slag. The method comprises the following steps of (1) transferring a temperature interval when the blast-furnace molten slag is maintained in a blast-furnace tapping hole to a component tempering mixing pool, adding and uniformly stirring corresponding modifiers, coloring agents and nucleating agents, and ensuring that the molten slag stays in a high-temperature interval; (2) driving the molten slag to enter a rolling forming area through a slag port and then enter a primary cooling area, and ensuring that the molten slag enters a nucleating area before the temperature of the surface of a shell is not lower than 500DEG C; (3) continuously heating to a crystallization area; (4) entering a cooling area, and cooling the molten slag to obtain a formed product; (5) cutting the formed product in a fixed size and polishing the surface of the formed product to obtain finished product glass ceramics. By adopting the continuous casting and rolling method and the device, the blast-furnace slag and solid waste resource are utilized, the produced glass ceramics have the advantages of high strength and acid and alkali corrosion resistance, and the economic benefit and the environment-friendly benefit are obvious.

The invention discloses a cleaning cocoon cooking method. The method comprises the processes of: external vacuum infiltration, cooking by an automatic cooker, cocoon steaming, and adjustment, wherein a reelability agent originally used for cocoon cooking replaces a penetrating agent for penetrating to be used in the external vacuum infiltration cocoon cooking process; in the condition with 30-50 DEG C water temperature, the reelability agent can only have infiltration function with water to be adsorbed between cocoon layers and on the surface of a cocoon filament; and in the cocoon cooking process and in the condition with 60-80 DEG C water temperature, the reelability agent can promote the cocoon filament sericin dissolution to reduce adhesion between cocoon filaments for the smooth dissociation of the cocoon filaments, so that the reelability agent has the reelability function in the cocoon cooking process. One chemical preparation achieves two functions, the chemical preparation is less and easily controlled in dose, process is simple, operation is convenient, and production cost is low.

The invention discloses a printing and dyeing wastewater processing system. The printing and dyeing wastewater processing system comprises a comprehensive wastewater preprocessing system, a depth reuse processing system and a sludge processing system, wherein the sludge processing system comprises a sludge pool; the comprehensive wastewater preprocessing system comprises an adjustment pool, a coagulative precipitation pool, a water discharging pool, a biological hydrolysis-acidification pool, an aerobic contact oxidation pool, a radial flow type secondary sedimentation pool and an intermediate water pool which are sequentially connected; the depth reuse processing system comprises an automatic backwashing sand filtration system, a pressure type ultrafilter membrane system, an RO membrane system and an RO reuse water pool which are sequentially connected; the sludge outlet of the radial flow type secondary sedimentation pool is communicated with the sludge pool; and the water outlet of the intermediate water pool is communicated with the automatic backwashing sand filtration system. According to the invention, the quality of the depth reuse water reaches outlet water quality standards; and the deepwater reuse can saves the water resource, and COD discharge is reduced year by year, so the content of discharged ammonia nitrogen can reach standards.

The invention provides a method for preparing tert-butyl peroxide by using a heterogeneous catalyst. The method comprises the following steps: by using tert-butyl alcohol and oxydol as raw materials and an acidic ion exchange resin as a catalyst, reacting under reflux, cooling, standing, and separating to obtain an oil phase and a water phase; and washing the oil phase with alkali and water to obtain a di-tert-butyl peroxide solution (DTBP), wherein the oil phase water washing solution and water phase are the tert-butyl hydroperoxide water solution (TBHP). Since the ion exchange resin has the advantages of large pore structure, high acidity and high catalysis efficiency and the large pore structure can not be destroyed in reaction, the catalyst can be easily separated from the reaction product and can be recycled repeatedly, thereby having higher economic value. Besides, no sulfuric acid or any other strong acid is used in the production process, so the method has the advantages of low corrosion to equipment and no environment pollution, and has higher environmental benefit.

A treatment method for persistent high concentration organic wastewater pertains to environmental protection technology area. The invention utilizes the combined system of Fenton Oxidation Process (abbr. FOP), Expanded Granular Sludge Bed (abbr. EGSB) and Membrane Bioreactor (abbr. MBR) to treat persistent high concentration organic wastewater. The Fenton Higher Oxidation treatment can do part degradation of COD, and transform some persistent organic compound with toxic properties into chemical degradation-labile intermediate product, thereby improving the degradation performance of wastewater. The anaerobic treatment can get rid of most COD in the wastewater to guarantee high load and low cost in the complete treatment process. The aerobic treatment can ensure the effluent steadily achieves the discharge standard and realize the environment and social benefit of the whole techniques. By adopting the invention, the COD and TN in effluent with persistent high concentration organic wastewater can be reduced by 80 percent to 95 percent, and fully meet the grade one standard of national integrated wastewater discharge standard.