89results about How to "Does not affect water quality" patented technology

The invention belongs to the technical field of feeds and particularly relates to a feed for crabs. The feed for crabs is characterized by comprising the following materials in parts by weight: 30-60 parts of pork skin, 20-50 parts of fat pork, 5-15 parts of lean pork, 6-9 parts of corn meal, 3-5 parts of soybean meal, 1-5 parts of edible oil, 0.1-1 part of garlic cloves, 1-2 parts of fish scale powder and 0.5-1.5 parts of rape seed cakes. The main problems that since the feed for crabs is difficult to absorb, the crabs grow slowly and the water quality is contaminated in the prior art are solved; the feed disclosed by the invention has the beneficial effects of being rich in nutrition and aromatic in smell, containing antiviral components, and enabling the crabs to grow fast after the feed is eaten; the feed is simple to prepare and all the materials of the feed are rich in supply.

The invention provides a method and system for treating high-fluorine high-hardness wastewater by a two-stage two-phase fluidized bed through self crystallization. The system comprises two self crystallization fluidized bed reactors (which are respectively recorded as a first-stage reactor and a second-stage reactor), a chemical A adding device, a chemical B adding device, a first-stage material pool and a second-stage material pool, wherein a raw water pool is connected with a water inlet opening of the first-stage reactor through a water inlet pump via a water inlet pipeline; the chemical A adding device is connected with a chemical adding opening of the first-stage reactor through a chemical A adding pipeline; a slag discharging opening of the first-stage reactor is connected with the first-stage material pool through a first-stage reactor mud discharging pipe; a water outlet of the first-stage reactor is connected with a water inlet opening of the second-stage reactor through a first-stage water outlet pipeline; the chemical B adding device is connected with a chemical adding opening of the second-stage reactor through a chemical B adding pipeline; a sludge discharging opening of the second-stage reactor is connected with the second-stage material pool through a second-stage reactor sludge discharging pipe; a water outlet opening of the second-stage reactor is connected with a recovery device through a second-stage water outlet pipeline.

The invention discloses a biologic emulsifier for aquatic animal feed. The biologic emulsifier is characterized by being prepared by two or more than two of sophorolipid, rhamnolipid and trehalose. The sophorolipid, the rhamnolipid and the trehalose and the like in the emulsifier are all secondary metabolites generated by microbial fermentation, can be naturally metabolized and degraded, do not cause residues in aquatic products, and do not influence water quality. The biologic emulsifier can remarkably improve feed fat digestion utilizing rate of fishes, shrimps and crabs and the like, reduces bait coefficient, remarkably improves production performances of aquatic animals, improves body immune function, reduces morbidity and mortality of the animals, and remarkably improves economic returns.

The invention belongs to the technical field of garbage wastewater treatment, and particularly relates to a landfill leachate treatment process on PMVR-ZLD. The process comprises the following steps of: stock solution collection, pretreatment, preheating, evaporation separation, advanced treatment, solidification and the like. According to the invention, a coagulating sedimentation system is adopted in pretreatment, so that the problem of unstable operation of the device caused by blockage is effectively solved; an MVR forced circulation evaporation separation system is adopted to perform wastewater evaporation on a leachate, so that the problems of heat transfer coefficient reduction, energy consumption increase, evaporator blockage and shutdown are avoided; the advanced treatment systemis used for treating evaporated effluent, so that the cost is greatly reduced; by adopting a landfill leachate zero-emission treatment system, the leachate is subjected to evaporation separation, generated crystals are solidified into bricks and then subjected to landfill treatment, the quality of inflow water is not affected, and the landfill leachate zero-emission treatment system has more advantages compared with a concentration recharge mode adopted for leachate wastewater treatment at present.

The invention discloses a test water tank and a test method thereof. The test water tank comprises a water inlet tank, a water tank with a turning section, a water outlet tank, a water storage tank, a water pump and tracer balls. The water inlet tank is provided with a water inlet and a first rectangular thin-wall weir. The water outlet tank is provided with a water outlet and a second rectangular thin-wall weir. The water inlet tank, the water tank with a turning section and the water outlet tank are connected in sequence. The water storage tank is connected with the water inlet and the water outlet through connecting pipes. The water pump is disposed on the connecting pipe between the water inlet tank and the water storage tank. The test want tank is simple in structure and low in cost, and has many functions. The water inlet and outlet flow in the water tank is controlled accurately in water level measuring and vertical line average flow velocity measuring tests, thus guaranteeing that a test condition is constant flow. Flow can be obtained through a formula as long as water heads on thin-wall weirs are measured. Water flow trajectories are displayed through the tracer balls to describe water current movement regulations in the turning section, and phenomena are clear. The tracer balls will not affect water quality, recovered by a perforated baffle plate, and can be recycled.

The invention discloses a method for extracting 10-deacetylbaccatin III from taxus chinensis. The method comprises the following steps: soaking and extracting 10-deacetylbaccatin III in taxus chinensis by adopting an aqueous solution containing a stability maintainer; and extracting, performing discoloring and flocculating treatment, recrystallizing and the like, thereby obtaining the high-purity10-deacetylbaccatin III. The method disclosed by the invention is clean, low in cost, non-harsh in extraction conditions, less in by-products, less in pigments and high in extraction rate, and is applicable to industrialized production and market popularization and application.

The invention provides application of bracteose eucalyptus essential oil and a complex bacterial agent thereof in preparing an insect repellent for marine fishes. The bracteose eucalyptus essential oil complex bacterial agent comprises the bracteose eucalyptus essential oil and streptomyces griseus HL-50 of which the bacterial content is not smaller than 5*10<8> CFU/g, wherein the preservation number of the streptomyces griseus HL-50 is CGMCC No.18424, and the primary effective constituent of the bracteose eucalyptus essential oil is 1,8-eucalyptol. The bracteose eucalyptus essential oil complex bacterial agent is easy to prepare and use, and the effects of effectively expelling various parasites which infect the marine fishes and inhibiting bacteria can be achieved simply by uniformly mixing the bracteose eucalyptus essential oil complex bacterial agent in edible feed for the marine fishes according to the use amount of 0.5-1.5 kg per ton of the feed and continuously feeding the fishes with the feed for 4-7 days; moreover, the complex bacterial agent is poisonless, harmless, and suitable for being used by the marine fishes for a long term, reduces the breeding cost, and has a wideapplication prospect.

The invention relates to the technical field of water purifiers and particularly relates to a water purifier without wastewater. The water purifier without wastewater comprises a pre-filter, a water inlet solenoid valve, a booster pump, a filter core mechanism and an RO film which are in turn connected through a pipe, wherein the pre-filter is connected with a raw water pipeline, a thick water outlet of the RO film is connected with a thick water outlet tube, a circulating pump is arranged on the thick water outlet tube, the outlet end of the thick water outlet tube is respectively connected with a thick water return tube and a domestic water pipeline, the outlet end of the thick water return tube is connected with the outlet end of the booster pump, and a check valve is arranged on the thick water return tube; a normally closed solenoid valve is arranged on the strong discharge protective pipeline; a bypass pipeline is arranged between the raw water pipeline and the domestic water pipeline; a water switch and a check valve are arranged on the bypass pipeline; and the water switch, a normally opened solenoid valve, the normally closed solenoid valve, the booster pump and the circulating pump are respectively electrically connected with an electric control device. By using the water purifier, the thick water cannot be discharged in the pure water production process so that the zero wastewater discharge function can be reached; and the thick water can be reasonably used when the domestic water is used.

The invention relates to the technical field of fishery breeding equipment, in particular to an oxygen increasing device. The oxygen increasing device comprises an electrolysis device, a water supply device and a power supply device. The electrolysis device comprises a bin body. A plurality of first electrode plates and a plurality of second electrode plates are arranged in an inner cavity of the bin body and are arranged in a staggered mode at intervals. The first electrode plates are connected in parallel. The second electrode plates are connected in parallel. The water supply device comprises a water pump. The water outlet end of the water pump is communicated with the inner cavity of the bin body. The first electrode plates, the second electrode plates and the water pump are all electrically connected with the power supply device. Oxygen is prepared in fishpond water in a water electrolysis mode, and therefore the oxygen content in the pond water is increased, in the oxygen preparation process, oxygen is automatically and fully dissolved in water, the content of oxygen in the water is increased, influences caused by weather and air pressure are avoided, the oxygen preparing efficiency is high, oxygen can be fast prepared, energy conservation and environment protection are achieved, meanwhile water quality is no affected, and the survival environment of a fish school is guaranteed.

The invention belongs to the technical field of water chemistry of reactor engineering and discloses a method for online measuring zinc content of a coolant in a primary circuit of a pressurized water reactor. The method comprises the following steps: measuring absorbencies of zinc of the coolant before and after adding a color developing agent and a buffer agent by using a spectrophotometric method, thus obtaining a work curve of a difference value between the two absorbencies and zinc concentration, and further obtaining the zinc content of the coolant. The method has the advantages that zinc in the coolant of the primary circuit of the pressurized water reactor can be online measured and the measuring accuracy is high.

The invention discloses a coagulant for treating fine-grain high-viscosity soil coal slime water, and the coagulant is prepared by evenly mixing more than two of barite powder, calcite powder, dolomite powder and medical stone powder. The coagulant is a mineral preparation, and when the coagulant is used, the coagulant can be discharged along with coal slime in usage, cannot be accumulated in water and cannot influence the water quality; the coagulant can change the electrical property of the surfaces of coal slime particles, so that high-viscosity soil mineral and the coal slime particles are easily flocculated and precipitated, the filter pressing speed of the coal slime is increased, and the cleaned coal quality and yield are improved. The coagulant can be matched with an appropriate amount of flocculating agents, the effect is good when the coagulant is used for treating the coal slime water which is complex in components and difficult to precipitate, the coagulation effect is obvious especially for the high-viscosity fine-grain soil coal slime water, and actual production requirements can be completely met; the water content of treated coal slime filter cakes is decreased below 25 percent, and the content of suspended matter in thickener overflow water is smaller than 150 mg/L.

The invention discloses an automatic cleaning device for an industrial water tank. The automatic cleaning device comprises a water draining ditch, a chemical adding tank, electric valves and the industrial water tank. Supporting plates are arranged over the water draining ditch, a first water inlet is fixed to the right side of the water draining ditch, and a second water inlet is formed in the right side of the chemical adding tank, and connected with a water delivering pump through a cleaning control valve; the electric valves are located on a water inlet pipe, and cleaning spraying heads and a water level sensor are connected in the industrial water tank. According to the automatic cleaning device for the industrial water tank, the direction of the water inlets is controlled to carry out the cleaning function, cleaning is carried out with the chemical agent adding method, a chemical reaction is carried out, the cleaning effect is good, dirt can be effectively and fully removed, and hazardous substances are not generated; as the cleaning spraying heads are arranged at the inner wall of the upper end of the water tank at equal intervals, all-around cleaning is carried out; as a cleaning pipe is independently arranged, chemical pollution cannot be brought to the water inlet pipe, and the water quality is not influenced during water feeding.

The invention belongs to the technical field of epoxy drinking water tank paint, and relates to low-viscosity thick-coating solvent-free epoxy drinking water tank paint and a preparation method and aconstruction method of the low-viscosity thick-coating solvent-free epoxy drinking water tank paint. According to the paint, liquid epoxy resin, an active diluent, a pigment filler, an auxiliary agentand a phenolic aldehyde amine curing agent are used as components. The liquid epoxy resin is bisphenol A liquid epoxy resin or/and bisphenol F type liquid epoxy resin, the reactive diluent is a monofunctional reactive diluent, and by optimizing the components, the finally prepared thick-coating solvent-free epoxy drinking water tank paint does not need to be diluted by additionally adding a diluent during construction, and the thickness of a dry film coated at one time is greater than or equal to 300 microns. After construction, the coating can be quickly dried at a low temperature, sagging caused by long-time non-drying is avoided, the thick coating can be promoted to have excellent adhesive force, chemical corrosion resistance, salt spray resistance and the like, the requirements of drinking water hygienic indexes and toxicological indexes can be met while the service life is prolonged, and the coating has positive significance.

The invention discloses a phase change material and plate type heat exchanger combined phase change energy storage tank. Heat is absorbed by the phase change of a phase change energy storage material, and is stored in the phase change energy storage material, so that the energy storage tank forms a heat-preservation tank for ensuring the heat utilization of a user at any time. The energy storage tank comprises a tank body, plate type heat exchangers and electric auxiliary heaters, wherein a solid-liquid phase change energy storage material is filled in the tank body; the plate type heat exchangers and the electric auxiliary heaters are arranged in the solid-liquid phase change energy storage material in the tank body; a maintenance hole is formed in the tank body; a heat-preservation layer is arranged outside the tank body. According to the energy storage tank, heat can be absorbed by the heat exchange of the energy storage material, and is stored in the phase change energy storage material, so that the energy storage tank forms the heat-preservation tank for ensuring the heat utilization of the user at any time; the continuous and constant temperature running of a heating system can be ensured, and heating quality is ensured; on the basis of providing the same heat, the size of the tank body can be reduced.

The present invention discloses a feed formula with high fat and high protein for fast fattening sea crabs, and belongs to the field of aquaculture technology. The feed formula is prepared by the following active ingredients of raw materials in parts by weight: pork skin 30-60 parts, fat pork 20-50 parts, lean pork 5-15 parts, corn powder 6-9 parts, soybean meal powder 3-5parts, edible oil 1-5 parts, garlic 0.1-1 parts, pearl white 1-2 parts, and rapeseed cake 0.5-1.5 parts. The feed formula mainly solves the problem that crab aquaculture feed in the prior art can not be absorbed easily by the crabs, along with a slow crab growth rate and water pollution. The feed has rich nutrition, fragrant smell and antiviral ingredients, and a faster crab growth rate can be realized after eating the feed. Also, the feed is simple in production and rich in raw material supply.

The invention discloses a membrane-softening treatment system and method used for supplement water for circulating water of a reclaimed water source. The system comprises a raw water tank, an ultrafiltration device, an intermediate water tank, a nanofiltration device, a clear water tank, a circulating cooling tower, a desulphurization absorbing tower and a scale inhibitor adding system, wherein a water outlet of the raw water tank is communicated with a water inlet of the ultrafiltration device, a water outlet of the ultrafiltration device is connected with a water inlet of the intermediate water tank, a water outlet of the intermediate water tank is merged with a water outlet of the scale inhibitor adding system through a pipeline, then the merged water outlet is communicated with a water inlet of the nanofiltration device, a produced water outlet of the nanofiltration device is communicated with a water inlet of the clear water tank, a water outlet of the clear water tank is communicated with a water inlet of the circulating cooling tower, and a sewage discharge outlet of the circulating cooling tower and a concentrated water of the nanofiltration device are both communicated with a water inlet of the desulphurization absorbing tower. The membrane-softening treatment system and method provided by the invention can effectively improve the concentration ratio of the circulating water and has the advantages of low cost, a small occupied area and good effluent quality.

The invention relates to an aluminum alloy sacrificial anode used for a water storage type water heater. Aluminum serves as raw materials. The aluminum alloy sacrificial anode used for the water storage type water heater is prepared from, by weight, 0.5-2.8% of a zinc element and 0.1-0.5% of a tin element. Further, a bismuth element and/or a gallium element are/is added, and preferentially, the weight percent of bismuth is 0.1-0.3%, and the weight percent of gallium is 0.05-0.25%. The multi-element aluminum alloy sacrificial anode solves the problems that in the using process of a current magnesium alloy sacrificial anode material, the actual capacitance is low, the service life is short, water is polluted, and an aluminum alloy sacrificial anode is poor in universality, not stable in performance and the like.

The invention provides a double-circulation heating system for a low-low temperature economizer, and belongs to the technical field of energy saving. The double-circulation heating system for the low-low temperature economizer comprises an intake furnace air heating system and is characterized in that the double-circulation heating system further comprises a condensed water heating system, the intake furnace air heating system and the condensed water heating system are connected to the low-low temperature economizer through a booster pump and a water quantity regulation valve. According to the double-circulation heating system for the low-low temperature economizer, the air supply temperature of a boiler is increased and the condensed water system is heated while the smoke temperature at an electric precipitation inlet can be decreased, and the purposes of safety, stability and multi-application of waste heat are achieved.