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1301results about How to "Purify water" patented technology

Composite type artificial algal reef

The invention discloses a composite type artificial algal reef comprising a mature algal reef and a seedling reef. The mature algal reef comprises a solid base. The upper surface of the solid base is embedded with a metal frame, wherein the shape of the metal frame is identical to that of the upper surface of the solid base and the size of the metal frame is identical to that of the upper surface of the solid base. A conch net bag is arranged in the metal frame. The center of the upper surface is embedded with a metal stand column. A steel ring is welded to the upper end of the stand column. A plurality of seedling ropes are fixed between the metal frame and the steel ring. The seedling reef is fixed to the side face of the solid base of the mature algal reef, and algal seedlings are attached to the seedling reef. By the adoption of the composite type artificial algal reef, the attaching effect of alga is guaranteed, the repair period of an algae field is shortened, the success rate of repair and reconstruction of the algae field is improved, the adhesive rate of the seedlings is increased, and the seedling reef is firm, durable, small in size, light, and convenient to carry; the net bag made of waste conches is placed in the metal frame, and a biophile reef can be composed through diffusion and attachment of spores of fronds on the seedling ropes; resource utilization of the waste conches is achieved, and composite type artificial algal reef has the advantages of being economical and easy and convenient to use.
Owner:SHANGHAI OCEAN UNIV

Functional rainwater garden suitable for interior of urban community grassy area in Shanghai

The invention discloses a functional rainwater garden suitable for the interior of an urban community grassy area in Shanghai. The functional rainwater garden suitable for the interior of urban community grassy area in Shanghai comprises pretreatment facilities, a water storage layer, water seepage facilities and an overflow facilities, wherein the pretreatment facilities comprise a ring-shaped side slope and gravels; the ring-shaped side slope is positioned on the periphery of the functional rainwater garden; the gravels are covered on the ring-shaped side slope; the water storage layer is a space formed by the ring-shaped side slope and the bottom of the functional rainwater garden in a horizontally encircling manner; the water seepage facilities are positioned at the bottom of the functional rainwater garden; the overflow facilities comprise an overflow pipe penetrating through the thickness direction of the water storage layer and an overflow drain pipe positioned at the bottom of the functional rainwater garden. The functional rainwater garden suitable for the interior of urban community grassy area in Shanghai provided by the invention can decrease the rainfall runoff peak value, purify water quality, supplement groundwater, reduce pressure on municipal water draining, improve microclimate and lift the livable degree of Shanghai.
Owner:SHANGHAI JIAO TONG UNIV

Seashell and algae shallow-sea ecology rearing device and method

InactiveCN101491221AAchieve breeding effectIncrease organic nutrientsClimate change adaptationPisciculture and aquariaDiseaseShallow sea
The invention discloses a device for ecologically culturing seashell and alga in shallow sea and a method thereof. The device comprises a seashell culture raft and an alga culture raft. The seashell culture raft comprises at least two paralleled floating ropes; buoys are arranged on the floating ropes and are connected with the floating ropes through floating ties; the two ends of each floating rope are fixed by underwater fixing mechanisms; the alga culture raft made by at least one culture curtain is arranged above each two adjacent floating ropes; the adjacent culture curtains are fixed by floating bamboo perpendicular to the floating ropes; and the two ends of the floating bamboo are connected with the floating ties. The device can be used to carry out the hanging culture of the seashell on the floating ropes and carry out the culture of the alga in the culture curtains floating above the floating ropes, thereby realizing the composite culture of the seashell and the alga. The device and the method have the advantages of reducing the culture cost, improving the culture efficiency and culture space utilization factor, and having good effects on the comprehensive use of shallow sea waters, the improvement of the water environment and the prevention and control of diseases.
Owner:SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Method for preparing nanofiltration membrane by adopting layer-by-layer self-assembly method

The invention discloses a method for preparing a nanofiltration membrane by adopting a layer-by-layer self-assembly method, and relates to a preparation method of a nanofiltration membrane, aiming at solving the problems that a nanofiltration membrane prepared by adopting an existing method cannot have both good interception performance and high water flux. The method comprises the following steps: preparing a polyacrylonitrile solution, preparing a polyacrylonitrile basilar membrane, preparing a treated polyacrylonitrile basilar membrane, assembling a layer of polyethlenimine, assembling a layer of graphene oxide, and reassembling polyethlenimine and graphene oxide, thus obtaining the nanofiltration membrane. According to the method disclosed by the invention, a layer-by-layer self-assembly method is adopted, polyethlenimine and graphene oxide are adopted for modifying a PAN membrane, so that the hydrophilia and the pore size of the surface of the membrane are effectively adjusted; because the membrane is relatively thin, relatively large flux can be obtained, and the obtained nanofiltration membrane has good interception performance. The method can be applied to the fields of antibiotics separating, fruit juice concentrating and seawater desalting.
Owner:HARBIN INST OF TECH

Preparation method and application of sea bdellovibrio bacteriovorus ecological preparation

InactiveCN101781627AGuaranteed lytic activityPromote lysisBiocideBacteriaNutrient brothCulture mediums
The invention provides a preparation method and application of a sea bdellovibrio bacteriovorus ecological preparation, and relates to a sea microbial ecological preparation and a preparation method of a bdellovibrio bacteriovorus preparation for mariculture. The preparation method comprises the following steps of: preparing a host bacteria suspension; separating and purifying bdellovibrio bacteriovorus; and propagating and culturing bdellovibrio bacteriovorus. The preparation method is characterized in that after pseudomonas stutzeri is connected with an incline and is activated, adding physiological saline in a test tube to prepare the bacterial suspension; then propagating and culturing with nutrient bouillon; adding a flocculating agent in the obtained bacterial suspension; standing and precipitating after uniformly shaking; adding the physiological saline to obtain 1012 cfu / mL of host bacteria suspension; separating and purifying the bdellovibrio bacteriovorus of collected sea and bottom sediment samples with a double agar plate method; pouring culture media containing the host bacteria suspension and the collected samples into sea agar in the lower layer for culture after uniformly mixing; and adding the host bacteria and the bdellovibrio bacteriovorus obtained by separation into sterilized natural sea, and culturing until the concentration of the bdellovibrio bacteriovorus is 108 to 109 pfu / mL for future use.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Circulating cooling water purification re-utilization automatic monitoring system

The invention discloses an automatic monitoring system for purifying and reusing circulating cooling water, comprising a sampling device, an online instrument device, a monitoring device and a drug-adding device. The sampling submersible pump of the sampling device and the online instrument device is directly hung in the circulating water of the pool. An outlet pipe of the submersible pump are divided into 3 paths and the 3 paths respectively enter a slime collector bypass, an online instrument monitoring bypass and a simulated heat exchanger bypass. The monitoring device comprises a control cabinet and a management computer. The drug-adding device comprises three parts, namely a drug-adding pump, a drug-adding box and an inverter. The drug-adding box is connected with the drug-adding pump; the drug-adding pump is connected with the control cabinet of the monitoring device and the management computer by the inverter. The automatic monitoring system realizes real-time monitoring of the water quality of water in the circulating cooling water system of the power plant and can automatically control the addition dosage in order to purify the water quality of the circulating cooling water to realize recycling. The automatic monitoring system has good economic benefit after popularization.
Owner:HENAN RELATIONS

Microecological preparation-tetragenous viable bacteria preparation and method for preparing same

This invention relates to a micro-ecological agent and the preparation method thereof, belonging to the micro-ecological agent technological field. The preparation of the active bacteria agent of this invention comprises: using L-calcii lactas and four useful micro-organisms of clostridium bytyricum, Lactobacillus casei, bacillus subtilis and saccharomycete as characteristic elements, cultured purely or mixedly by means of universal fermentator, producing active bacteria powder by freeze-drying, and acquiring the finished products by double crossing of the powder at a specific proportion. By using the anaerobic and aerobic characteristics of related bacterial strains, this agent has the following merits: playing the synergy effect in enhancing the disease resistance of marine animals and the water purification of aquaculture, substituting antibiotics fully or partly for the disease prevention and cure in fresh water aquiculture and mariculture, and improving the economic benefits of aquaculture. The L-calcii lactase component can accelerate the husking growth and prevent the disease of soft husk of shellfish marine animals like shrimp and crab. This agent is characterized of being nontoxic, free from side effects, nonpersistent, without secondary pollution and no drug tolerance, and will have a wide commercial application in the fresh water aquiculture mariculture.
Owner:江苏省苏微微生物研究有限公司

Ecological comprehensive treatment system of northern mountain river channel and construction method thereof

The invention discloses an ecological comprehensive treatment system of a northern mountain river channel. The system comprises three sub ecological systems of an ecological permeable dike built on the upstream of a main stream and a branch stream of a mountain river, a reservoir pond arranged at the middle and downstream area of the mountain river and a wet land communicated with the reservoir pond, and adopts an ecological treatment mode of closure-storage-preservation. The construction method comprises the steps of: a) building of the ecological permeable dike; b) setting of a triangular pyramidal wood pile stone cage; c) building of the reservoir pond; d) planting of plants of the reservoir pond; e) building of a wet land system; and f) recovery of a river bank band. The system and the construction method can effectively intercept the mountain debris flow and the river non-point source pollution, adjust the river runoff, improve the hydrologic conditions of the mountain river in non-flood season, decrease the dry season of the mountain river, and facilitate to recover the ecological system of the mountain river. Meanwhile, traditional depressions and empty ponds in the mountain river can be used in construction, so that the engineering building cost is reduced, and the self-cleaning capacity of river water is improved.
Owner:SHANDONG ANALYSIS & TEST CENT

Integrated water purifying and processing equipment

The invention discloses integrated water purifying and processing equipment. The equipment comprises an external barrel and an internal barrel, wherein a convex head is arranged at the top of the external barrel; a water outlet is formed in the center of the convex head; a conical bottom plate is arranged at the bottom of the external barrel; a mixer motor and a speed reducer are arranged in the center of the bottom of the conical bottom plate; the speed reducer is provided with a stirring shaft; the side wall of the conical bottom plate is provided with a dredge pipe; an escape pipe is arranged at the bottom of the conical bottom plate; the inner side of the external barrel is divided into a clean water zone, an inclined tube settling zone, a mud and water separating zone, a secondary cluster flocculation zone, a primary flocculation reaction zone and a mud collection zone in turn from top down; a sludge concentrating zone is arranged between the internal barrel and the external barrel; the equipment is provided with a coagulant quick coagulation device and a sludge hydraulic automatic backflow device to keep the concentration of the sludge in the reaction zone stable; the sludge concentrating zone is provided with a spiral bevel plate to efficiently concentrate the sludge; and the clean water zone is provided with a water collecting plate to realize pressure effluent. The equipment has a simple structure, compact layout and high space utilization rate, is convenient to operate, and is suitable for clarifying tap water in middle-sized and small cities and purifying industrial water by primarily removing turbidity.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Ecological cultivation method with health care fermented feed matched with probiotic fermentation bed

The invention relates to an ecological cultivation method with health care fermented feed matched with a probiotic fermentation bed. The method includes the steps that first, probiotic fermentation is carried out, wherein the probiotic fermentation comprises anaerobic fermentation of anaerobes and aerobic fermentation of aerobic microorganisms; second, the probiotic fermentation bed is prepared, wherein various raw materials for preparing the material of the fermentation bed are evenly mixed so as to obtain organic bedding, bacterium solution is inoculated for fermentation, and the organic bedding contains saw dust, rice husks, bran and first compound Chinese herbal medicine; third, the fermented feed contains corn, bean pulp, vitamins, microelements, mineral substances, amino acids, other additives, second compound Chinese herbal medicine and the like, and microorganisms are added into the feed components for fermentation. The ecological cultivation method has the advantages that water can be purified, and hidden danger to health of hogs caused by a water source is blocked; the using amount of the microelements is reduced, resources are saved, emissions are reduced, and the environment is protected; no antibiotics or residue exists, and food safety and human health are guaranteed; the Chinese herbal medicines have the functions of being resistant to disease and promoting growth and can replace antibiotics.
Owner:BEIJING HUAMU GREAT EXPLOIT SCI & TECH

Method for cultivating oleaginous microalgae by using fecal sewage

The invention relates to a method for cultivating oleaginous microalgae by using fecal sewage, which comprises the steps of pretreatment of the fecal sewage, inoculation activation and acclimated cultivation of microalgae, amplification cultivation of the microalgae, accumulation of lipid content of the microalgae, concentration of the microalgae and collection of the microalgae. According to themethod, a liquid which is discharged during the process of feces recycling treatment and conforms to the emission standard is used for cultivating the microalgae so that cultivation water and reagents are saved during the microalgae cultivation, simultaneously, the microalgae can be used without being sterilized, the production process is reduced, the cost of obtaining microalgae biodiesel is reduced, nitrogen and phosphorus in the liquid serve as nutrient materials during the microalgae cultivation, various indexes in the sewage are further reduced, and water quality of the sewage is improved. Besides, biogas produced during the process of feces recycling treatment serve as a heating fuel, carbon dioxide (CO2) separated during biogas purification serve as a carbon source for the microalgae cultivation, the microalgae cultivation and the feces recycling treatment are organically coupled, and energy conservation and emission reduction are promoted while the cost is reduced.
Owner:北京昊业怡生科技有限公司

Method for ecologically culturing high-quality red testis river crabs

The invention discloses a method for ecologically culturing high-quality red testis river crabs, which fully utilizes natural conditions and resources of ponds, natural waters, rivers, reservoirs, lakes and wetlands, starts from biological, ecological and environmental mechanisms, follows the characteristics of respective econiches occupied by various organisms in biology, is based on biological characteristics of river crabs such as life habit, feeding habit, growth and development and the like, reasonably applies ecological balance breeding technology and nutrient balance technology, builds the best ecological environment of the culture of the river crabs, and meets the nutritional need of the growth and development of the river crabs to raise the high-quality 'red testis' river crabs. The ecological culture method comprises the following steps of: culture pond pretreatment, aquatic plant cultivation, shellfish transplantation, freshwater shrimp stocking, crab seedling stocking, siniperca chuatsi delivery, water quality control, bait feeding, and disease control. The method for culturing the river crabs can produce the high-quality and high-grade 'red testis' river crabs, can greatly improve the economic benefit of crab farmers, and can greatly improve the sustainable development of crab culture industry and the ecological benefit, the economic benefit and the social benefit of crab culture.
Owner:潘洪强 +1

Alga control method for freshwater environment based on cultivation of barracudas and mullets

The invention discloses an alga control method for a freshwater environment based on cultivation of barracudas and mullets, relating to a water treatment method. Aiming at solving the problem that algae can not be stably and thoroughly controlled in a eutrophic fresh water body, the method comprises the following steps: at least introducing one species of estuarine/marine fishes, such as barracudas and mullets which can only be propagated in sea water, and carrying out desalination processing before cultivation to enable the barracudas and the mullets to be adapted to a freshwater living environment, wherein the mesh size in the large water body ensures whether the cultivated fishes can escape; dividing or mixing according to different ages, carrying out culture in enclosure in girds by meshes, and simultaneously cultivating and propagating silver carps, bighead carps, other local fishes and local shellfish; and propagating local common aquatic plants. Thus, the fishes can be fed on the algae in a filter-feeding mode and simultaneously swallow detritus substances, thereby achieving the purpose of thoroughly purifying the water environment. By harvesting the cultivated and propagated aquatic organisms to remove nitrogen/phosphorus nutrients in water and humus in bed material from the water body, the method disclosed by the invention greatly improves the water quality of the cultivation water body.
Owner:SHANGHAI NENGZHENG FISHING TECH DEV CO LTD

Cast-in-place inverted filter plant-growing type concrete ecological slope protection system and construction method thereof

ActiveCN103437321AReduce the magnitude of the upswingReduce shockCoastlines protectionGrowth plantWave shape
The invention discloses a cast-in-place inverted filter plant-growing type concrete ecological slope protection system and a construction method thereof. The cast-in-place inverted filter plant-growing type concrete ecological slope protection system comprises a slope body, plant-growing type ecological concrete is arranged above the ordinary water level of the slope body, the surface of the plant-growing type ecological concrete is a plant growth layer, inverted filter ecological concrete is arranged below the ordinary water level of the slope body, and a scour prevention structure is arranged below the plant-growing type ecological concrete. The surface of the inverted filter ecological concrete is in a step shape or a wave shape, a plurality of grooves are formed in the surface of the inverted filter ecological concrete, the grooves are filled with active zeolite, and a filter screen covers the surface of each groove. According to the cast-in-place inverted filter plant-growing type concrete ecological slope protection system and the construction method of the cast-in-place inverted filter plant-growing type concrete ecological slope protection system, due to the fact that the scour prevention structure is arranged below the plant-growing type ecological concrete, the rainwash-resistant effect is achieved, and nutrition is supplied to the growth of plants; due to the fact that the surface of the inverted filter ecological concrete is in the step shape or the wave shape, impact on the a side slope of waves is effectively reduced; due to the facts that the grooves are formed in the surface of the inverted filter ecological concrete and the grooves are filled with the active zeolite, water is purified.
Owner:JIANGSU SHANSHUI ENVIRONMENT CONSTR GRP
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