1873 results about "Natural water" patented technology

The invention discloses a compound flocculant taking natural minerals as main components. The compound flocculant is mainly prepared from the following components by weight percent: 60%-85% of natural minerals, 8%-38% traditional inorganic flocculant and 3%-10% of organic polymer flocculant. According to the invention, key points are as follows: in the compound flocculant taking natural minerals as main components, the weight of the natural minerals, the inorganic flocculant and the organic polymer flocculant is dry weight; and the compound flocculant is implemented to purification of civil engineering wastewater, natural water, industrial wastewater, oily wastewater, fluoride wastewater, food processing wastewater, auto parts processing wastewater, colored wastewater, clean wastewater, semiconductor processing wastewater, restaurant waste water, mine water, slaughter wastewater, grinding wastewater, sewage effluent and the like.

The invention belongs to the field of fluid mineral product exploration such as petroleum, natural gas and shale gas, and provides a self-suspended propping agent which is prepared by wrapping or partially wrapping a granular framework with a water-soluble high polymer material; the framework consists of solid granules which are sufficient in mechanical strength for bearing crack closing stress and are selected from one or multiple of quartz sand, ceramsite, metal granules, spherical glass granules, sintered monohydrallite, sintered alumina, sintered zirconium oxide, synthetic resin, precoated sand and crushed fruit shell granules; the amount of the water-soluble high polymer material accounts for 0.1-5wt% of that of the framework. The self-suspended propping agent provided by the invention does not need to be fractured by using fracturing fluid which is added with organic macromolecules and is high in cost, and can be fractured by using natural water which can be obtained at any place directly, so that pollution is reduced, and the cost can be lowered. By adopting the self-suspended propping agent provided by the invention, friction resistance of the fracturing fluid can be reduced, and a fracturing support system adopting the self-suspended propping agent has properties which are generally identical to those of conventional fracturing fluid, and is easy to convey and discharge backwards.

A system and method for restoring the natural water cycle by reducing stormwater runoff and addressing issues affecting groundwater supply. In one embodiment of the invention, the system comprises a roof washer component, cistern component, pump, and manufactured dry well. The system is designed to divert polluted rooftop runoff, capture clean rooftop runoff and store this clean water for irrigation purposes and nonpotable uses, while infiltrating excess water to recharge groundwater supplies thereby replicating the natural hydrologic cycle.

At first, breeding filter feed silver carp, carp and crucian carp in area of water bloom breakout to control algae growing; pelagian eats small algae to reduce quantity of the algae; spiral shell and clam can moves carrying roes toincrease fish spreading area; cyanophage, dissolved algae bacteria and other microbe eating algae are separated and purified from natural water, which is cultured to large quantities in laboratory then to be put in blue algae water bloom breakout orea to control algae; resumption of water plant in water bloom breakout area can control algae growing. Last is getting rid of algae by machine including fixed blue adgae water bloom removing machine and mobile blue adgae water bloom removing machine.

The invention discloses a preparation method of a self-suspension proppant. The self-suspension proppant is prepared by dispersing a water-soluble polymer material into an aggregate at 15-150 DEG C, wherein the water-soluble polymer material is selected from natural polymer materials, artificially synthesized polymer materials or semi-naturally semi-artificially synthesized polymer materials, and the use amount of the water-soluble polymer material accounts for 0.1-15wt% of that of the aggregate. By virtue of optimized selection of raw materials and process conditions, a preparation process of the proppant which covers the polymer material simply, conveniently and effectively is dramatically obtained, the material cost is reduced, and a used covering material cannot cause pollution to the environment. The self-suspension fracturing proppant disclosed by the invention does not need high-cost fracturing fluid containing organic high polymers to perform fracturing, but directly uses natural water available everywhere to perform fracturing, so that pollution is reduced, and the cost is reduced.

The invention relates to the technical field of ecological restoration of water environment, and especially relates to a biological and ecological restoration system of eutrophic rivers and lakes. Ecological floating beds are laid along a bank, the water surface coverage rate of the floating beds is 15-20%, and each of the floating beds consists of a floating plate, planting baskets, a planting basket filler, floating bed plants, a nylon net, immobilized microorganism particles, a biological filler and artificial waterweeds. The planting baskets are placed in the planting basket holes of the floating plate, the planting basket filler is arranged in the planting baskets, the floating bed plants are planted in the planting basket filler, the nylon net suspends below the floating plate, the immobilized microorganism particles suspend between plant roots, the biological filler suspends below the nylon net, the artificial waterweeds are planted at the water bottom, and submerged plants are properly planted in a water area with two times in the transparency. The system has the advantages of simple and economic carrier, high strength, good durability, reliable planting, natural water ecological landscape, and engineering water quality improvement; and compared with systems in the prior art, the system focuses on the ecological restoration and construction of river and lake water, realizes the self purification, self regulation and self maintenance of pollutants in a certain concentration range, and is an effective way to improve the water quality without all-basin pollutant interception at the present stage.

The invention belongs to the technical field of solid waste treatment and relates to a micro-plastic separation method and device. The micro-plastic separation method comprises the steps that (1) settlings of field natural water are collected; (2) the settlings of the field natural water is subjected to low-temperature drying and freeze-drying, and samples to be treated are obtained; (3) after a density solution is added into the samples to be treated, sufficient stirring is conducted until the samples to be treated are completely suspended in the density solution, and a non-sediment layer and a sediment layer are formed from top to bottom after still standing; and (4) the non-sediment layer is extracted and passes through a filter film, liquid passing through the filter film is repeatedly used, and objects isolated by the filter film include but limited to micro-plastic particles in the settlings of the field natural water. The provided micro-plastic pollutant separation method and device are capable of rapidly and effectively separating and extracting the micro-plastic particles in settlings of water such as rivers and lakes.

This invention relates to a process utilizing natural carbon-13 isotope for identification of early breakthrough of injection water in oil wells. All natural water sources are labeled by unique ratios of carbon isotopes (¹³C/₁₂C). Following the requirements of the invention, the carbon isotope ratio for oil bearing formation water and for local aquifer water which is to be injected in to the oil reservoir rock is determined. The carbon isotope ratio of the produced water from the selected oil wells is then monitored periodically. When the carbon isotope ratio of the produced (oil well) water shows deviation from the formation water value and tends towards injection water value, then the early breakthrough phenomenon of injection water is identified. Thus the contrast in natural carbon isotope ratios of injection water, formation water and produced water from selected oil wells serve as tracer in the identification of “Early Breakthrough” phenomenon of injection water and its movement.

The invention discloses a separated slope trench-shaped terrace soil preparation method applied to mountainous regions. A segment of mountain slopes in an original state is reserved between adjacent fields with the width of 2m and soil preparation depth of 1-1.2m, grooves with the width of 1.5m and the depth of 1m are excavated on slope surfaces, and then slope surface soil or local soil is mixed to rotten ripe high quality organic fertilizers with the thickness of 10cm for backfill. A mountain slope original state slope surface with the width of 2m is reserved between two grooves to serve as a ridge. A built field surface is a terrace in a counter-slope state, and the other side of the terrace is high and the inner side of the terrace is low. Another ridge with the height of 30cm is built on the outer edge of the terrace to block and store water and field surface runoff. The whole field surface faces to a direction along a contour line and mains a gradient of 3%.-5% longitudinally. Through using of the method, surface soil and weathered materials on mountainous region surfaces can be centralized and used, the problems of local soil an natural water storage are solved, and thus needs of planting of trees on the mountainous regions are met.

The invention discloses a set of apparatus and a method for culturing Haematococcus pluvialis and converting astaxanthin in large scale. The apparatus consists of a photo-bioreactor system set on the frisket, aeration equipment, culture fluid inoculation equipment and still cell harvesting equipment. Floating or sunken pulse equipment is set on the frisket. The apparatus don't need establishment of artificial culture pool and other institution, but uses natural water body to culture Haematococcus pluvialis in large scale. It is low cost, the culture temperature, illumination and water flow rate is stable, culture fluid flows with each other, aeration is continuous, culture conditions are precedent, which make the growth and increment of Haematococcus pluvialis almost at equal pace. The growth rate of Haematococcus pluvialis can reach to 25%, biomass increase is fast, doubles 3-5 days. The photo-bioreactor can be hoisted into required depth of the water, which solves the contradiction of difference of temperature, illumination and nutrition of Haematococcus pluvialis culture and astaxanthin conversion.

Methods and systems are disclosed which provide for the purification of effluent from a septic system or natural water from rainwater or stormwater collection devices for the storage and reuse of water. The purified water may be supplied to water applications, such as a return conduit to a home for potable or graywater usage. The distillation unit may be powered by a local power independent of a municipal power grid and which may employ sustainable energy mechanisms. The distiller residue may undergo a volume reduction process, such as evaporation, coagulation, electrocoagulation or microfiltration. The purified water may be stored in a holding tank with sensors to monitor the water quality and water level within the tank. Alarms, release valves or relief valves may be activated in response to such monitoring.

A method and apparatus for treating contaminated water are described wherein contaminated natural water or industrial wastewater is treated to remove contaminants in a packaged modular treatment unit.

The invention discloses a water quantity and quality regulating method based on a water function area. The method includes constructing a water quantity regulating simulation model; calculating control section flow of the water function area; calculating pollution loading amount into a river; calculating pollutant-loading capacity based on the water function area; and analyzing a standard reaching status of the water function area. According to the method, the water quantity regulating simulation model of a basin level water function area is constructed; the relation between water consumption, project scheduling and natural water cycle is considered, simultaneously, a pollutant-loading capacity analysis model of the water function area is constructed and used, the pollutant-loading capacity of the water function area is analyzed according to the water quantity regulating simulation model, and the water quantity and quality of a basin is regulated according to the analyzing and calculating results. Compared with the prior art, the factors of water consumption, project scheduling and natural water cycle are fully considered, pollutant-loading capacity analysis of the water quality of the basin is more accurate, and the water quantity regulation is more reasonable.

The fully water lubricating and end flow distributing water hydraulic axial plunger pump or motor operates with filtered natural water as work medium and consists of mainly one casing and one rotating cylinder inside the casing. The cylinder has odd holes distributed homogeneously in the same circumference and parallel to the driving or output shaft, plungers of the plunger-sliding shoe assembly are set inside the holes, and the flow distributing sleeve has one end installed in the other end of the holes and the other end set in the holes of the push stopping disc. The push stopping disc floats to the cylinder to compensate the error of parts in machining and installation. The central spring has one end pressing the push stopping disc to the flow distributing disc via plastic rod and the other end pressing the sliding shoe to the inclined disc via the cylinder, ball pivot and backstroke disc, and the driving or output shaft is combined firmly to the cylinder.

The invention relates to the field of rainwater closure technologies, in particular to a rainwater closure system. The rainwater closure system is characterized in that an electronic-control constant-flow gate with constant water flow is arranged in a sewage disposal pool, a hydraulic automatic gate is arranged between a buffer pool and an initial rain regulating storage pool, a water inlet of the hydraulic automatic gate is higher than the elevation of the bottom of a sewage pipe, a hydraulic-drive downward-opening type weir gate is arranged in a drain channel, and a gate of the hydraulic-drive downward-opening type weir gate can rise along with rise of the level of natural water. The rainwater closure system has the advantages that the hydraulic-drive downward-opening type weir gate is arranged between a closure well and the natural water, the gate can rise by equal amplitude under the control when the level of the natural water rises, and accordingly the natural water can be effectively prevented from flowing backwards.

The invention discloses a magnetic styrene alkali anion exchange microsphere resin and a preparation method thereof. The resin comprises a basic framework and magnetic particles positioned inside the basic framework. The basic framework of the resin has the structure as follows: radical A is one or a plurality of the picture below, wherein n is 1, 2, 3 to 20, R1, R2 and R3 are alkyl, and X is C1 or OH. The method comprises the following steps of: adding a dispersant to a water phase; mixing reactants, a stabilizing agent and a pore-foaming agent to form an oil phase; adding an evocating agent to the oil phase for full dissolution; adding the magnetic particles to the oil phase, adding the oil phase to the water phase to obtain resin particles, filtering to remove water content, and washing or extracting the resin particles; and swelling the obtained resin particles, and adding an amine reagent. The invention simplifies traditional synthesis process, and prepared resin has magnetism and has higher alkali exchange capacity and can be used for separating or removing dissolved organic matters and a plurality of anions in various wastewater, drinking water or natural water.

The invention relates to the field of urban rainwater treatment systems, in particular to a separate system pipe network based area fragmented rainwater abandoned flow treatment system. An area internally comprises a sewage header pipe, rainwater branch pipes and sewage branch pipes; the discharging ends of the sewage branch pipes are communicated with the sewage header pipe, the area is divided into a plurality of segments in a grid shape, and the area of each fragment is 0.2-4 square kilometers; each fragment is internally provided with a sewage branch pipe, a rainwater branch pipe and one or more abandoned flow wells; each abandoned flow well comprises a well body, each well body is provided with a water inlet pipe communicated with the discharging end of the corresponding rainwater branch pipe, a water outlet pipe communicated with natural water and an abandoned flow pipe communicated with the sewage header pipe. The separate system pipe network based area fragmented rainwater abandoned flow treatment system is simple in structure, the problem of delay in the long-distance conveying process of initial rainwater in the prior art is solved through the independent abandoned flow wells in the fragments, the treatment pressure of a sewage treatment plant is relieved, the situation that initial rainwater pollutes natural water is further avoided, and discharging treatment of rainwater is more reasonable and effective.

The invention belongs to the field of water treatment in the environmental protection industry, and particularly relates to a method for preparing a novel composite adsorbing material for removing lithium ions in natural water. The composite adsorbing material is obtained by loading aluminum salt on a lithium ion screen modified by deep sea manganese nodules. According to the invention, the composite adsorbing material is obtained by the following steps of: preparing aluminum hydroxide and lithium hydroxide into aluminum salt, then, modifying the deep sea manganese nodules to obtain the lithium ion screen, combining aluminum slat and the lithium ion screen through a gelatinizing solvent, and finally, settling, washing, filtrating, centrifuging and air drying. The composite adsorbing material for removing the lithium ions in the natural water, provided by the invention, has the characteristics that the selective adsorption capacity on the lithium ions is efficient, the operation the simple, no secondary pollution is caused, recycling is realized, the price is low, and the like. The composite adsorbing material for removing the lithium ions in the natural water, provided by the invention, is simple in technology, low in cost, high in efficiency and beneficial for environmental protection, thereby having higher economic and social benefits in the field of water treatment.

The invention provides a modified walnut shell active carbon adsorbent and a preparation method thereof. The preparation method of the modified walnut shell active carbon adsorbent comprises the following steps: drying crushed and sieved walnut shell powder in a drying oven till constant weight is realized, weighing a proper amount of soft manganese ore powder, adding the soft manganese ore powder into the walnut shell powder, chemically activating the walnut shell powder by using H3PO4, soaking and activating the walnut shell powder in a phosphoric acid solution for 18-24 hours, then burning and carbonizing at high temperature, cooling the walnut shell powder to the room temperature, washing with water till to neutral, drying the walnut shell powder in the drying oven, grinding and sieving to prepare the modified walnut shell active carbon adsorbent. Compared with the ordinary walnut shell active carbon, the adsorbent is high in removal rate of heavy metal ions such as copper, lead and chromium; the adsorption capacity is high; the raw materials for preparing the adsorbent are wide in sources and low in cost; the adsorbent can be widely used in natural water and industrial sewage and wastewater for removing the heavy metal ions.

The invention discloses an ecological high-yield circulating breeding system and method. The system is characterized by comprising a plurality of fish breeding pools (1) of the area ranging from 200 square meters to 700 square meters, a sealed greenhouse (2) is arranged on the fish breeding pools, an air inlet is formed in one end of the greenhouse, an air supply device (3) is additionally arranged on the air inlet, an air outlet is formed in the other end of the greenhouse, natural water drainage openings (6) are formed in the bottoms of the fish breeding pools, and water supplementing pumps (4) are installed on the periphery of the fish breeding pools and are communicated with a circulating water source (5). By means of the system and method, the green ecological circulation is achieved, no chemical medicine is used in the whole system or the whole breeding process, full-food-chain recycling is achieved for waste water and excrement produced during fish breeding, the commercial high-yield breeding that 50,000 kilograms of snakehead and 25,000 kilograms of bass are produced per year can be achieved, grass carp, chub, yellow catch eel and other high value-added aquatic products can be produced, and meanwhile, completely-green organic rice, fish, shrimp, crab and other by-products high in economic value can be produced in paddy fields.

The present invention discloses a frost heave force model of a rock tunnel based on a rock-water-ice force in-situ test. A pore water pressure gauge, an earth pressure box, and a multi-point platinumresistance temperature sensor are used in a combination manner to perform a frost heave force in-situ test on fractured rocks, the temporal and spatial evolution laws of the fissure water pressure, the ice pressure, and the surrounding rock pressure before and after freezing of the fractured rocks are obtained, and theoretical model calculation results, in-situ test results, and existing researchresults are compared and analyzed. According to the frost heave force model of the rock tunnel based on the rock-water-ice force in-situ test provided by the present invention, in-situ testing on siteis used, the test method is innovated outside the previous test system mainly containing the freeze-thaw cycle mechanics test of fractured rock masses, the lack of measurement methods is compensated,the frost heave force in natural water-containing cracks is obtained, and starting from macro and engineering applications, the discussion of the meso-structure and fracture geometry of fractured rocks is avoided; the general area of low-temperature water-ice phase transition and the direction of water migration are considered; and the frost heave force model of the rock tunnel based on the rock-water-ice force in-situ test provided by the present invention will provide a reference for similar projects of the currently developed Sichuan-Tibet Highway.

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.