101results about How to "Tackle eutrophication" patented technology

The present invention relates to no-phosphate corrosion and scale inhibitor and its application. The no-phosphate corrosion and scale inhibitor consists of polyaspartic acid and/or polyepoxy succinic acid 10-20 wt%, polymaleic anhydride 20-30 wt%, copolymer of acrylic acid and 2-acrylamido-2-methyl propenyl sulfonic acid 15-20 wt%, zinc salt 3-5 wt%, natural organic high molecular compound 5-12 wt%, molybdate 5-8 wt%, and other components 5-20 wt%. It has excellent corrosion retarding performance, high scale inhibiting performance and environment friendship.

The present invention relates to method of eliminating blue-green algae in lake and city landscape water area, and solves the technological problems of eliminating blue-green algae from water area, recovering and utilizing algae, and controlling blue-green algae growth to transfer nitrogen and phosphate in water in high efficiency and low cost. The technological scheme of the present invention is to spray water purifying agent with the stirrer running in the blue-green algae growing water and features that the water purifying agent consists of three kinds of flocculants, including bentonite, aluminum chloride polymer and cation type polyacrylamide. The floated flocculated matter is fished, dewatered and fermented into organic fertilizer, and the filtered out water is returned to the water area.

The invention relates to a water circulating ecological system for aquaculture. The water circulating ecological system comprises an aquaculture main body ecological breeding tank, a biological purifying tank, a water purifying tank and a residue treatment ecological breeding tank. Environmental engineering for ecological breeding is constructed by the water circulating ecological system, and the breeding environment is controlled and optimized, so that aquaculture breeding dirt is cleared up by virtue of ecological mating of microorganism, plants and animals, and therefore, water self-cleaning effect of an ecological environment is achieved. By virtue of a recycling economy mode, the water is self-cleaned and utilized in a multi-stage manner to form an industrial chain of a plurality of products, so that duplex economic value added effect is produced. The production system ecologically controls the aquaculture, so that breeding water can be saved for over 70%, and water quality is regulated and optimized, and therefore, healthy aquaculture is implemented.

The invention relates to a layered adsorbent of wastewater containing thiosulfate and a treatment method thereof, belonging to the technical field of wastewater treatment. The adsorbent of wastewatercontaining thiosulfate is layered double hydroxides (LDHs) and calcined products (CLDH) thereof, and the chemical formula is [M<2+>[1-x]M<3+>x(OH)2]<x+>(A<n->)x/2.yH2O. By applying the LDHs and the CLDH to the treatment of wastewater containing thiosulfate, the invention enables the layered double hydroxides recovered after the thiosulfate is absorbed to be regenerated by sodium carbonate or sodium hydroxide or used for other applications such as agricultural sulfur-containing compound fertilizer and the like. The layered adsorbent can be used for recovery and the reclamation of the thiosulfate. The invention has good absorption effect of the thiosulfate and regeneration and recycle or direct reclamation of the adsorbent, and can solve the problem of eutrophia of the thiosulfate to soil and water bodies.

A water treatment system of landscape achieves interaction and water quality purification. Diatomite structure with fixed shape is built above and below water surface, grass seed is implanted in external diatomite and microbe is added in internal diatomite.

The invention provides an aquatic plant water body purification method. The method comprises the following steps: acquiring water body information of a to-be-purified water area; and planting water body purification plants in the to-be-purified water area according to the water body information, wherein the water body purification plants comprise emergent aquatic plants, floating plants and submerged plants, the emergent aquatic plants comprise at least one of reed, cattail and calamus, the floating plants comprise duckweeds and the submerged plants comprise at least one of hornwort and water caltrop. The water body information of the to-be-purified water area is acquired, so that the water body conditions in the to-be-purified water area can be fully known; and the water body purification plants are planted in the to-be-purified water area according to the water body information, so that multi-aspect water body purification is performed by utilizing the emergent aquatic plants, floating plants and submerged plants, the water body is comprehensively purified by adopting different types of aquatic plants, the water eutrophication problem is effectively solved, the adaptability and comprehensiveness of aquatic plant water body purification are improved, and the water body purification efficiency is effectively improved.

The invention belongs to the technical field of ecological restoration and particularly relates to a water body ecological restoration method. The water body ecological restoration method comprises the steps that the water surface is cleaned, then submerged plants, emergent aquatic plants and floating-leaved plants are planted, and aquatic animals are put in. According to the water body ecological restoration method, sludge at the water bottom is treated with a plant blanket in-situ coverage method, root systems of the emergent aquatic plants are fixed with pollution-free clay, and a putting-in type planting method is adopted for the floating-leaved plants and the emergent aquatic plants. The aqueous plants can provide an adhesion symbiotic space for microorganisms, and provide a food source for aqueous animals, fish and shellfish are put in when the aquatic plants grow stably, and a rapid and simple water body forest system is formed. By means of the water body ecological restoration method, the effects of fixing sludge at the water bottom, restoring the natural ecological environment and maintaining the water to be clear permanently can be achieved; meanwhile, a dwelling site can be provided for fish and birds, and certain river landscape can be formed.

An aeration diversion water circulation treatment is composed of a diversion tube, an air pump, an air tube, a uniform distribution exhaust unit, a suspender, a sling, a weight diverter, and a power supply, which are connected, wherein the suspender via the sling is connected with the diversion tube of which the tail is connected with the weight diverter, one end of the air tube is connected withthe air pump while another end is connected with the uniform distribution exhaust unit suspended in the diversion tube, and the suspended depth of the exhaust unit in the diversion tube is relative to the exhaust pressure of the exhaust unit while the exhaust unit can exhaust normally, the air pump is mounted on the suspender and connected with the air tube, the space between the suspender and the diversion tube is a water outlet, the weight diverter at the bottom of the diversion tube is a water inlet. The invention can effectively improve water quality, resolve water eutrophication, degradeeutrophication sludge at water bottom, and resolve seasonal turnover problem of lake and large pool.

The invention relates to a method for generating methane and electricity by utilizing solar energy. A plant which can quickly grows is planted in a closed solar greenhouse; anaerobic digestion is performed to the plant after being harvested, to generate marsh gas with the methane and carbon dioxide; the marsh gas is burnt to generate the electricity; and simultaneously, carbon dioxide is generated; or the marsh gas is separate to generate methane and carbon dioxide; generated carbon dioxide enters the greenhouse; methane is output; and the anaerobic digestion remaining slag and the digestive juice of the plant are taken as fertilizers used for the growth of the plant in the greenhouse. A self-generating circulating system of the invention almost has no energy loss, therefore, the fertilizers used for the growth of the plant is saved. Any matters like fertilizers etc. are not required to be inputted in the system, so that the conversion and utilization processes of the solar energy is simplified. The annual output of the methane of the solar greenhouse/mu reaches 6000 squares (75 percent of digestion conversion ratio), and 24000 kwh of electricity is generated.

The invention discloses a simple method for removing nitrate nitrogen in water body. The method is characterized in that: a solid state or plastic state material containing organic carbon source is added to the water body to form an environment of the local oxygen-deficient water body; the nitrate nitrogen is transformed into nitrogen in the oxygen-deficient environment through a combined action of the organic carbon source and denitrifying bacterium, and the nitrogen escapes from the water and enters into atmosphere, such that the nitrate nitrogen in the water body is removed. The method provided by the present invention is especially applicable for water quality treatments for eutrophic lakes and reservoirs, marine ecology recovery and rivers having high nitrate content.

The invention aims to provide a solar energy water body ecological restoration floating bed system. Through a floating plate system, a water body is subjected to a photoelectrocatalysis function to degrade organic matters in the water body, in addition, an electric field can be added to accelerate phosphorus in the eutrophication water body to be degraded into a phosphoric acid state, and phosphoric acid is conveyed to a volatile gas adsorption area, phosphoric acid is mixed with ammonia nitrogen separated from the water body in an aeration stripping process, insoluble-state nitrogen and phosphorus, including struvite and the like, can be formed under the function of magnesium ions in modified zeolite, and the contents of nitrogen and phosphorus are further lowered under the action of aquatic plant; aerobiotic, anoxia and anaerobic biochemical systems are combined to carry out overall treatment, a new system is provided for effectively solving the problem of water body eutrophication,and water body restoration is achieved fundamentally.

The invention aims to provide a non-phosphorus environment-friendly pretreatment filming agent for circulating water. The non-phosphorus environment-friendly pretreatment filming agent for the circulating water has the advantages that good filming effects are achieved, and compact protection films can be formed on the surfaces of pipelines and a heat exchanger in advance so as to protect equipment and prolong the service life thereof; the pretreatment filming agent is simple in component, available to raw materials, low in cost and free of toxicity and secondary environmental pollution; the pretreatment filming agent is high in filming speed, compact and even in formed film and capable of improving corrosion resistance of the pipelines effectively.

The invention relates to a non-phosphorus corrosion and scale inhibitor suitable for medium-and-low-hardness and strong-corrosion water and application of the non-phosphorus corrosion and scale inhibitor. The non-phosphorus corrosion and scale inhibitor is prepared from the following ingredients by weight percent: 15-30% of an AMPS-containing terpolymer, 12-20% of hydrolyzed polymaleic acid, 0.1-10% of sodium gluconate, 15-40% of a fatty alcohol polyoxyalkylene alkyl ether-carboxyl-sulfopropionate copolymer, 0.1-3% of a pH regulator, 0.1-12% of zinc salt, 0.1-5.0% of benzotriazole, 0.5-5.0% of a water-soluble inert fluorescent tracer and 15-40% of deionized water. Compared with the prior art, the non-phosphorus corrosion and scale inhibitor provided by the invention solves the problem that a common non-phosphorus corrosion and scale inhibitor cannot draw the corrosion and scale inhibition function into consideration during concentration of a circulating water system. The non-phosphorus corrosion and scale inhibitor is favorable in performance and good in stability, has general applicability to medium-and-low-hardness and strong-corrosion water, and has the characteristics of no phosphorus, environmental friendliness and high efficiency.

The invention relates to a microorganism water purification agent and a preparation method thereof. The preparation method comprises following specific steps of: inoculating the agent onto a cane molasses medium, and fermenting for 24-120 hours at 25-35DEG C so as to cultivate the agent. The method for purifying the water quality of aquaculture water by the prepared microorganism water purification agent comprises the step of adding 15-18ml of the agent prepared by the method into one cube of aquaculture water. According to the method, the cane molasses medium is used for cultivating the agent, so that the amount of viable bacteria can be increased to the greatest extent, the amount of viable bacteria of bacillus subtilis, which plays a main role in purifying the water body, can be increased, and the purification effect of the aquaculture water is better; for the fermentation time, the amount of viable bacteria of the agent can be improved, furthermore, and the agent holds certain amount of sugar so as to provide nutrient for the bacteria, thus being beneficial to guaranteeing the quality; the agent prepared by the method can effectively solve the problem of damage and eutrophication of the quality of the aquaculture water, thus improving the quantity and quality of aquatic products.

The invention discloses a multifunctional crop planting and culturing system. The multifunctional crop planting and culturing system is characterized in that ecological factors such as air temperature, air humidity, illumination, carbon dioxide concentration, fresh air flow, crop root system environment temperature, crop root system environment humidity, irrigation water, ozone, negative ions and nutrient ratio in nutrient solutions required by various growth stages of crops are selected according to an optimization method, and more suitable ecological factor data of each growth stage of the crops are obtained; an intelligent controller is provided with an MCU (micro-control unit), a mathematical model database of more suitable ecological factors of each growth stage of the crops, a real-time ecological factor data unit and a purification reflux liquid chemical component data unit, and is connected with a crop monitoring system, a temperature control system, a gas-liquid system and an illumination system to control the ecological factors of each growth stage of the crops, and the crops can grow in an environment with more suitable ecological factors; high-quality agricultural products are obtained; and the reflux liquid is purified and recycled. The invention provides a management system capable of preventing a growth lamp from hurting the human body.

The invention relates to the technical field of printing and dyeing auxiliaries, in particular to a low-temperature scouring agent and a preparation method thereof. The low-temperature scouring agentis prepared from the following components in percentage by weight: 0.2 to 0.8 percent of a hydrogen peroxide activating agent, 21.8 to 39.2 percent of a low-foaming surfactant, 3 to 10 percent of a scouring assistant and 50 to 75 percent of deionized water. By adopting the low-temperature scouring agent provided by the invention, hydrogen peroxide can be decomposed effectively at low temperature,a high-temperature scouring effect can be achieved by releasing active oxygen, cotton wax can be removed effectively at a low temperature, and a good, uniform and consistent scouring effect and high efficiency are achieved during low-temperature scouring. Moreover, the low-temperature scouring agent provided by the invention is environmentally friendly, and is biodegradable.

The invention discloses a greenhouse ecological circulation three-dimensional planting system and a method thereof in pond culture technology. An organic vegetable cultivation device is directly abovea fish farming pond. Sludge water at the bottom of the fish farming pond is pumped into a mixing tank. Sludge water is pumped in a filter device for filtration. The ammonia nitrogen concentration ina nitrogen water pool is read by a first ammonia nitrogen concentration detection device. The nitrogen water in the nitrogen water pool and the water in the mixing tank are pumped into the fish farming pond. The water in the nitrogen water pool is pumped into a first nitrogen water reserve pool. The water in the first nitrogen water reserve pool is pumped into the organic vegetable cultivation device for being absorbed by vegetable. The ammonia nitrogen concentration in a second nitrogen water reserve pool is read by a second ammonia nitrogen concentration detection device. The nitrogen waterin the second nitrogen water reserve pool is pumped in the fish farming pond. The nitrogen water is recycled into the fish farming pond. The invention carries out secondary circulation absorption andutilization of the sludge water in the fish farming pond, and realizes the automatic circulation of water resources and nitrogen resources. The utilization ratio of water resources and nitrogen resources is high, and the automatic integration of the ecological circulation system can be realized.

The invention relates to the field of circulating water processing, and concretely relates to a recirculated cooling water phosphorus-free corrosion and scale inhibitor. The recirculated cooling waterphosphorus-free corrosion and scale inhibitor comprises the following raw materials in parts by weight: 5 to 20 parts of a corrosion inhibitor, 2 to 15 parts of a scale inhibitor, 1 to 6 parts of a copper corrosion inhibitor, and 10 to 100 parts of water. The corrosion and scale inhibitor prepared by the invention can significantly reduce the corrosion rate of the metal, and has excellent corrosion inhibition rate and scale inhibition rate. Compared with a phosphorus-containing corrosion and scale inhibitor, the amount of a bactericide is reduced, the use cost of the bactericide is reduced, more importantly, the sewage does not contain phosphorus, the problem that excessive breeding of algae causes eutrophication of water bodies can be prevented, and the corrosion and scale inhibitor is beneficial to ecological balance.

The present invention relates to a floating-bed-type rice-turtle symbiotic planting and culturing system as well as a planting and culturing method thereof. In order to solve the situation of eutrophication pollution of aquaculture water in the prior art, provided is a technical solution that: the floating-bed-type rice-turtle symbiotic planting and culturing system includes a canal, a rice-turtlesymbiotic block and a plurality of wintering ponds; the plurality of wintering ponds are arranged in the direction of the canal; an agricultural machine channel is disposed between every two of the adjacent wintering ponds; a deep ditch is disposed between each of the wintering ponds and the rice-turtle symbiotic block; the deep ditches are deeper than the wintering ponds; the deep ditches are further provided with a plurality of shallow ditches; the shallow ditches are vertical to the deep ditches; the wintering ponds are connected with the rice-turtle symbiotic block by the deep ditches andthe shallow ditches; the wintering ponds are connected with the canal by water inlet channels; and the wintering ponds are further provided with water outlet channels. The floating-bed-type rice-turtle symbiotic planting and culturing system is good in quality, high in yield and capable of decomposing and utilizing culture tail water so as to reduce environmental pollution.