330results about How to "Clear water" patented technology

A device for converting the energy of water waves or flowing water into electrical or mechanical energy is provided. The device includes a body or collection chamber with a hydro-turbine located opposite the water entrance and, preferably, a water clear out channel flange located beneath the hydro-turbine and at or upstream of the water exhaust from the device. As the water is channeled by wave facing directional blades and a wave leveler through and exits the hydro-turbine or pump, it has free exit into a water void area which is produced by the water clear out channel flange or body. The device may be designed to operate in deep water, with its own floatation apparatus or moorings, or near shore, held by supports secured to the seabed or other structures. The device also exhibits a “tip up, tip down” synchronous motion as wave fronts advance through and passed the device, which increases the efficiency of the device by accelerating the flow of water therethrough.

The invention discloses a preparing method of an oil field demulsifier. The preparing method adopts ethyleneamine as a raw material, and the oil field demulsifier is prepared by crosslinking modification of the ethyleneamine, ethylene oxide, and propylene epoxide. The method comprises the following steps of: with the ethyleneamine as an initiator, enabling the ethyleneamine to react with propylene oxide and ethylene oxide to prepare an ethyleneamine type polyether demulsifier under the existence of a basic catalyst; carrying out self-crosslinking reaction on the polyether demulsifier A by adopting polycarboxylic acid under the action of a catalyst to prepare a product B; and finally carrying out self-crosslinking reaction on the polyether demulsifier A and the product B in a solvent by adopting toluene diisocynate to prepare a high performance demulsifier as a final product. The demulsifier prepared by the preparing method has the advantages of higher relative molecular weight, favorable dehydration effect and favorable broad spectrum, and can be used for demulsification and dehydration of the crude oil in the oil field. The dehydrated water is clear, and the dosage of the demulsifier is less.

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 discloses a preparation method of a demulsifier for oil fields. In the method, fatty alcohol is used as a raw material, and the demulsifier is prepared by crosslinking and modifying after reacting the fatty alcohol with oxirane and epoxypropane. First, the fatty alcohol is used as an initiator, and a polyether demulsifier A is prepared by reacting the fatty alcohol with propylene oxide and ethylene oxide in the presence of a basic catalyst. Then, a product B is prepared by carrying out self-crosslinking reaction on the polyether demulsifier A with polycarboxylic acid under the action of the catalyst. Finally, a final product, i.e. the high-performance demulsifier, is prepared by carrying out self-crosslinking reaction on the polyether demulsifier A and the product B in a solvent with adoption of toluene diisocynate. The demulsifier prepared with the method has the advantages of high relative molecular weight, ideal dewatering effect and good broad spectrum property, and can be used for demulsifying and dewatering oil field crude oil. Separated water is clear, and the use amount of the demulsifier is small.

The invention discloses a lobster feed capable of purifying water and improving immunity. The lobster feed is prepared from the following raw materials in parts by weight: 3-5 parts of garlic, 1-3 parts of calcium dihydrogen phoshate, 2-3 parts of tender leaves of fennel, 4-6 parts of banana skin, 2-4 parts of villous amomrum fruit, 3-5 parts of cluster mallow fruit, 3-4 parts of sargassum thunbergii, 4-6 parts of dehydrated spinach, 2-4 parts of cinnamon, 6-8 parts of cuttleflsh bone, 5-8 parts of wheat middling, 20-30 parts of rapeseed dregs, 15-20 parts of meat and bone meal, 4-6 parts of stevioside and 6-10 parts of an assistant. The lobster feed disclosed by the invention is balanced in nutrient; due to addition of the rapeseed dregs, the meat and bone meal and the like, most of basic nutrients required by the lobster can be supplemented; the added stevioside is high in sweetness, and long in duration, and can play a good attractant effect; due to addition of villous amomrum fruit, the cluster mallow fruit and the like, the disease resistance of the lobster is further enhanced; and the survival rate of the lobster is increased.

The invention relates to an advanced treatment method of an ethylene waste lye, and belongs to the sewage treatment field. The method comprises the following steps: 1, adjusting the pH value of a wet-oxidized ethylene waste lye to a predetermined value; 2, carrying out primary aerobic biochemical treatment of the wastewater obtained in step 1 in a primary aerobic biochemical treatment pool; 3, carrying out Fenton oxidation treatment of the wastewater obtained in step 2; 4, adjusting the pH value of the wastewater obtained in step 3 to a predetermined value; and 5, carrying out secondary aerobic biochemical treatment of the wastewater obtained in step 4 in a secondary aerobic biochemical treatment pool, precipitating, and discharging the obtained supernatant. The method has the advantages of good ethylene waste lye treatment effect, short treatment flow, simple operation and stable running.

A bioengineering composite ecology control method for natural water body belongs to environment regulation technosphere which is suitable for fathering lake, reservoir, riverway and sight. The bioengineering composite ecology control method for natural water body comprises following steps: enclosing water area-enclosing the water area into several unit water areas with insulated material; b cleaning-removing and cleaning the enemy fish by driving means in the enclosed unit water areas; c removing alga-covering water surface with covering in the clean unit areas to make alga in water body dead owing to lacking of photosynthesis; and reducing storm to blending water body; d planting or transplanting sunken plant in a unit water area with a high transparence after removing alga. The invention has some advantages of investing less, acting quickly, effecting better, long time, beautiful view and without secondary pollution.

The invention discloses a movable device for effectively collecting and processing algae pollutant, comprising an algae pulp scraping and absorbing device (1), an algae pulp delivery pump (2), a flocculation stirring tank (3), an algae pulp water extractor (5), a post processing device (6) and an algae pulp reflux pump (7). The algae pulp delivery pump, the flocculation stirring tank, the algae pulp water extractor and the algae pulp reflux pump are connected with each other by means of a closed loop in sequence and are integrated on mechanical equipment with a power supply device (9) and a control device (8); the output pipe of the algae pulp delivery pump (2) is communicated with the flocculation stirring tank (3); the flocculation stirring tank is communicated with the algae pulp water extractor (5); the lower part of the algae pulp water extractor is connected with the post processing device (6); the post processing device is communicated with the suction inlet of the algae pulp reflux pump (7); the discharging port of the algae pulp reflux pump is communicated with the flocculation stirring tank; and the algae pulp scraping and absorbing device (1) is communicated with the algae pulp delivery pump (2). The invention adopts a laminated screw thrust water extractor which is also named as a laminated screw mud water extractor, when the screw rotates, the device relatively turns and forms a helically forwards impelled lamination so that filtrate is fast filtrated by means of cutting in the clearance of the helically forwards moved lamination, the volume of a helical cavity is continuously shrunken, so that inner pressure is increased, the water content of a filter cake fast reduces under a pressure doubling function, the filtrate continually flows out, and the algae pulp is dehydrated and concentrated to be mud. The separated water is clear and is discharged into rivers and lakes, thereby avoiding polluting natural water body.

The invention discloses a method for ecologically culturing Rana spinosa, which comprises the following steps of culturing farm construction, culturing time, gutter way water level, culturing density, bait feeding, temperature control and disease prevention. The constructed culturing farm is basically similar to the natural ecological environment and ensures that Rana spinosa can have a good playing and activity space, the metabolism of the Rana spinosa is promoted and the Rana spinosa grow well. The gutter way water level is 2-3cm above the surface of the gutter way, so that the Rana spinosa can have moist skin and strong disease resistance. Baits are more economical and more balanced in nutrition, and the quantity of chemical drug residues in the Rana spinosa is relatively low. The method for ecologically culturing Rana spinosa has the advantages that the culturing farm is basically similar to the natural ecological environment, the playing activity space of the Rana spinosa is proper, germs are not easy to propagate, and the Rana spinosa has balanced nutrition, better growth, strong germ resistance and high survival rate.

The invention discloses a high-efficiency water-changing fry breeding pool comprising a breeding pool body, partitions, a moving plate, filter plates, an isolation screen plate, a frame, a lifting device and a moving part. The high-efficiency water-changing fry breeding pool is characterized in that two sets of the partitions are disposed in the middle of the breeding pool body; the breeding poolbody is divided into two parts of a first breeding barn and a second breeding barn; a through hole allowing fries to pass through is opened in the middle of the partition; the moving plate is connected with the lifting device which is disposed on the frame; the frame is arranged above the breeding pool body; two sets of the partitions are respectively arranged on the lower portions of the first breeding barn and the second breeding barn; the end portion of the isolation screen plate is located below the through hole; a first filter plate is located inside the first breeding barn while a secondfilter plate is positioned inside the second breeding barn; a moving part is slidably arranged on the frame. The high-efficiency water-changing fry breeding pool has the advantages of facilitating water changing in the first breeding and second breeding barns, achieving the best breeding environment inside the first breeding and the second breeding barns, and being conducive to healthy growth ofthe fries.

The invention relates to a method for performing ultrasonic separation on oily wastewater with oil-soluble ferroferric oxide nanoparticles. The method comprises the following steps: performing ultrasonic treatment on oily wastewater while adding oil-soluble ferroferric oxide nanoparticles in the oily wastewater, performing ultrasonic dispersion to ensure that ferroferric oxide enters the microdroplets of the wastewater with the help of the hydrophobic alkyl surface and magnetic oil microdroplets with ferroferric oxide particles are formed, and then combining magnetic separation to achieve the aim of removing the oil microdroplets in the wastewater. The method can be applied to treat the oily wastewater, improve the human living environment and increase the life quality of people. The oily wastewater treated by the method, particularly the oil extraction wastewater in the oilfield has a remarkable oil-water separation effect.

The invention discloses a traditional Chinese medicine wastewater treatment system and a method for treating traditional Chinese medicine wastewater. The traditional Chinese medicine wastewater treatment system consists of the following four parts of a pretreatment system, a biochemical treatment system, an advanced treatment system and a sludge treatment system. In the pretreatment system, a wastewater storage tank, a three-dimensional electrolytic cell, a sand filtering tank, a secondary filtering tank and an aeration device mainly take a role of blowing-off to remove chloroform from wastewater and thus to enable existence of microorganisms in the subsequent treatment buildings to be difficult, so that the defect that the traditional Chinese medicine wastewater is difficult to be treated biochemically is solved. According to the invention, the three-dimensional electrolysis is applied to the wastewater treatment, the test proves that 80% of COD of the wastewater can be degraded when the wastewater is subjected to electrolysis for 24 hours, the effect for treating highly difficult organic wastewater is obvious, and the biodegradability of the wastewater is increased; coagulation-sedimentation-filtration, blowing-off, three-dimensional electrolysis and biochemical treatment are well combined and applied, so that the effluent water quality is clear and the process cost is low.

The invention relates to an environmental-friendly system, in particular to a sludge processing system for watercourses and lakes. The sludge processing system comprises a control system, a sludge hoisting device, a sludge water preprocessing device and a sludge water magnetic separation drying device, wherein the sludge hoisting device, the sludge water preprocessing device and the sludge water magnetic separation drying device are sequentially connected, the sludge hoisting device comprises a hoisting pump and a sludge suction head part, the sludge water preprocessing device comprises a dosing system, a coarse screen, a sand removing device and a coagulating device which are sequentially connected through pipelines, and the sludge water magnetic separation drying device comprises a magnetic separation device and a squeezing device. According to the sludge processing system disclosed by the invention, the water content ratio of processed sludge is less than 75%, the sludge body is reduced by nine tenths, the water body color of a black, smelly and high watercourse is obviously changed, the COD (Chemical Oxygen Demand) and the BOD (Biological Oxygen Demand) for processing outlet water are reduced by 40-45 %, and the water quality is clear. The sludge processing system disclosed by the invention is suitable for processing sludge and sewage of city landscape watercourses, artificial lake water bodies and city buildings and protecting the reservoir water source.

Belonging to the technical field of environmental sewage treatment, the invention in particular relates to a method for direct filtration of municipal wastewater with a plate ceramic membrane. The method includes the three processes of: 1) performing coagulation to promote the destabilization settlement of suspended particles and organic pollutants; 2) letting a coagulated suspension flow into a plate ceramic membrane reactor, and conducting low pressure filtering to obtain purified effluent water; and 3) performing online/offline backwash process to control membrane pollution. The method provided by the invention can effectively reduce the concentration of organic matters and phosphorus in water and reduce the membrane pollution rate.

The invention relates to a developing and governing method for a sandy wide channel canal/shoal/pool. A narrow river channel is formed by two main dikes (new flood dikes) which are constructed between the prior flood dikes at two sides of a sandy channel segment along the riverway trend, and large dams are constructed at the upstream and the downstream. A water supply and sand diversion canal is constructed at the inside or outside of at least one of the main dikes in the narrow river channel. A conveyance and navigation canal is constructed outside one or two sides of the narrow river channel. The conveyance and navigation canal is adjacent to the water supply and sand diversion canal or the conveyance and navigation canal, or the conveyance and navigation canal is a split type. The bottomland and the pool surrounded by the diking are changed from the shoal area between the main dike or canal dike and the prior flood dikes. The bottomland can be a permanent site for living, production, construction and development. The long-term reserved pool is capable of storing water resource and supplying water in non-flood season, storing floodwater and replenishing dryness in flood season, and detaining and storing the flood. The developing and governing method for the sandy wide channel canal/shoal/pool effectively prevents from flood, treats and uses slit, ensures the security in flood prevention, and supplies enough rinsing water source; the water service cost is low, and the method is capable of developing and utilizing the resources such as hydraulic power, shipping, and tourism, etc. in the channel segment, and the method has a positive meaning in improving environment.

The invention relates to the technical field of landfill leachate treatment, in particular to a landfill leachate treatment method. The landfill leachate treatment method comprises the following steps: step 1, treatment in an adjusting tank; step 2, electric flocculation treatment; step 3, anaerobic tank treatment; step 4, treatment in an anoxic tank; 5, aerobic treatment on the MBR membrane reactor; step 6, filter treatment; step 7, NF membrane and RO membrane treatment; and step 8, treatment on the landfill leachate concentrated solution. The landfill leachate treatment method can effectively reduce the conductivity and part of COD, ammonia nitrogen and other pollutants in the leachate; the biodegradability and stability of the landfill leachate are improved, the occupied area of a biochemical treatment system is reduced under the same condition, the service life of a membrane system is prolonged, the water production rate of the membrane system is improved, and meanwhile, the problems encountered in recharging and evaporation of a concentrated solution are effectively solved.

The invention relates to an advanced treatment composite catalyst for industrial wastewater as well as a preparation method and application thereof. The composite catalyst-SKL-A is prepared by doping Mn, Co and Ni-substituted polyoxometallate PW11 with Fe and Cu, and then loading the Mn, Co and Ni-substituted polyoxometallate PW11 doped with Fe and Cu onto a modified carrier APS-SiO2. The preparation method can be used for overcoming the following defects: a Fenton process in an advanced oxidation process for advanced wastewater treatment is high in sludge amount and high in chemical feeding amount; a Fenton fluidized bed process is high in blockage possibility and difficult in continuous operation; an ozone catalytic oxidation process is low in treatment efficiency and limited in treatment capacity. The advanced treatment composite catalyst is large in specific surface area, increased in catalytic active points, improved in catalytic activity and improved in oxidation reaction velocity and oxidizing ability, has a favorable treatment effect on non-biodegradable pollutants in industrial wastewater, is low in stripping possibility during a reaction process and can be recycled. Compared with ferrous iron used as a catalyst in a Fenton reaction, the composite catalyst SKL-A is relatively efficient, broad in spectrum, and less in Fe leaching during use, and can be continuously and repeatedly used.