36results about How to "Alleviate water stress" patented technology

The invention discloses an integrated rainwater system for a sponge city and a construction method of the rainwater system. The rainwater system comprises a middle green belt and water storage tanks, wherein the middle green belt comprises a vegetation planting area and a rainwater infiltration area; a concrete course is arranged at the lower end of the rainwater infiltration area; a rainwater pipe is arranged at the lower end of the concrete course, and the rainwater pipe is connected to the water storage tanks; water pumping pipes are connected from the interiors of the water storage tanks; bidirectional nozzles are arranged at the other ends of the water pumping pipes; and water pumps are connected to the water pumping pipes. In accordance with the shortcomings of the prior art and the characteristics of the sponge city, the rainwater system, which integrates water seepage, water storage, water purification and utilization, is designed, and the construction method of the rainwater system is correspondingly designed; by promoting the water seepage with the adoption of vegetation, the problem of road water-logging is solved through slow discharge and controlled release; and in addition, some impurities in the rainwater are separated on the basis of the purification capacity of the vegetation, and the rainwater is stored in the water storage tanks and is used for spraying roads and watering the vegetation in dry season, so that adverse effect caused by drought and flood seasons can be effectively relieved.

The invention discloses a seawater desalination system capable of making use of afterheat of smoke. The seawater desalination system comprises a seawater filtration device, a humidification tower, a dehumidification tower and a fresh water treatment device which are connected in sequence, wherein the humidification tower is provided with a smoke input opening, and smoke can be introduced into the humidification tower through the smoke input opening; the humidification tower is provided with a concentrated seawater discharging opening, and concentrated seawater can be discharged from the concentrated seawater discharging opening; the humidification tower is provided with a wet smoke discharging opening, and wet smoke can be discharged from the wet smoke discharging opening and conveyed to the dehumidification tower; the dehumidification tower is provided with a smoke discharging opening, and the humidified smoke can be discharged from the smoke discharging opening; the dehumidification tower is provided with a cooling water input opening, and cooling water can enter the dehumidification tower from the cooling water input opening; the dehumidification tower is provided with a wet smoke input opening, and the wet smoke can be discharged from the wet smoke discharging opening and can enter the dehumidification tower from the wet smoke input opening; the dehumidification tower is provided with a fresh water output opening, and fresh water can flow out from the fresh water output opening and reach the fresh water treatment device. The invention provides a system for desalinating the seawater by making use of the afterheat of the smoke and removing pollutants from the smoke.

The invention discloses a comprehensive mechanized coal mining face mine water resource utilization system. The comprehensive mechanized coal mining face mine water resource utilization system is formed by a working face sewage and goaf hydrops collecting and purifying system, a sludge treatment system and a feedback control system, wherein the working face sewage and goaf hydrops collecting and purifying system can be divided into four parts of a sewage collecting area, a physical filter area, a suspended matter treatment area and a heavy metal ion treatment area; the sludge treatment systemis formed by a reflux pipe, a sludge pump, a sludge pumping pipe and a mechanical centrifugal machine; the feedback control system is formed by a detector which is distributed in a roadway floor waterchannel, an electric control valve, an automatic control console and a water pump. The comprehensive mechanized coal mining face mine water resource utilization system disclosed by the invention is capable of carrying out centralized treatment on sewage generated on a working face and goaf hydrops by using a purifying device distributed in a recovery roadway floor, treating the sewage into production water and domestic water and conveying the production water and the domestic water to all water utilization places under a shaft and on the ground, and the purpose of carrying out resource utilization on the sewage on the working face and a goaf can be achieved.

It relates to an intermittent drip-irrigating strap with a variety of structures, which could realize the circulation of the water diversion and release. There are three kinds of water diversion modes in the invention, gravitation water diversion, water storage Vesicae Cubage water diversion and main pipe segment water diversion. An intermittent drip irrigating strap with gravitation water diversion is placed on the wavy ground or material, the water outlet is at the bottom, the delivery pipe is controlled by a pipe-like valve. For an intermittent drip-irrigating strap with water storage Vesicae Cubage water diversion, the water intake pipe and the water delivery pipe are controlled by pipe-like valves. For an intermittent drip-irrigating strap with main pipe segment water diversion, the water delivery pipe in each section is controlled by pipe-like valves. The pipe-like valve comprises a valve jacket and a valve core in the jacket. The valve jacket is a plastic film pipe having a pair of water inlet and water outlet at intervals. The valve core is an active sealing member, including three kinds, rubber, plastic film and plastic membrane.

The invention relates to microbial pesticide and a preparing method thereof.The microbial pesticide is prepared from vermiculite, kieselguhr, talcum powder, aluminum oxide, bacillus hypha, sodium alga acid, sodium carboxymethyl cellulose and chitin.The dry basis weight ratio of vermiculite to kieselguhr to talcum powder to aluminum oxide is 1:(3-10):(15-35):(0.1-0.6):(0.1-0.6).The weight fraction of sodium alga acid in the microbial pesticide is 0.1-3%, the weight fraction of sodium carboxymethyl cellulose is 0.1-3%, the weight fraction of chitin is 0.1-3%, and the inoculation bacterial colony of bacillus is 109-1010 cfu / g.The microbial pesticide is good in effect and high in release rate.

The invention provides an upland rice paddy field irrigation planting high-yield cultivation method which mainly includes the steps of seedling strengthening culture, paddy field transplanting, paddyfield transplanting fertilization, water management, upland rice harvesting, drying and the like. An upland rice water cultivation mode is adopted, the original dry cultivation mode of upland rice isbroken through, the degree of water stress to the upland rice can be relieved, weed covering degree is reduced, the total output of the upland rice is increased by 267.44% as compared with that of a common dry cultivation mode, the number of panicles per hole, the number of grains per panicle and ripening rate are very significant in difference in different cultivation modes, and the number of panicles per hole, the number of grains per panicle and the ripening rate of paddy field irrigation planting are larger than those of the common dry cultivation mode. In addition, in the paddy field irrigation planting process of the upland rice, and water can be saved by paddy field dry cultivation seedling strengthening culture and paddy-upland alternating optimal water management technology of field management. By the method, the planting area of the upland rice can be effectively enlarged, and germplasm resources of the upland rice are protected and used.

The invention provides a treatment system for nuclear power plant radioactive waste liquid reuse. The treatment system comprises a technological drainage treatment sub-system, a chemical and ground drainage treatment sub-system and a service drainage treatment sub-system. The technological drainage treatment sub-system comprises a technological drainage collection unit, a technological drainage evaporation unit, a technological drainage ion exchange unit and a monitoring tank which are connected in series successively. The chemical and ground drainage treatment sub-system comprises a chemical drainage collection unit and a ground drainage collection unit and further comprises a chemical and ground drainage evaporation unit, a chemical and ground drainage ion exchange unit and a chemical and ground drainage reuse tank which are connected with the downstream sides of the chemical drainage collection unit and the ground drainage connection unit in series successively. The service drainage treatment sub-system comprises an ozone and ultraviolet light treatment unit, a precision treatment unit and a service drainage reuse tank, which are connected in series successively. The treatment system can realize drainage of treated waste liquid with higher tritium concentration of nuclear power plants and reuse of treated liquid waste having a lower tritium concentration or basically containing no tritium.

The invention belongs to the field of recycling treatment of domestic wastewater, and specifically relates to a recycling device for kitchen sewage. The recycling device comprises a box body, a water collection tank, a vibration filtering module, a buffer module, a control module and a reverse osmosis module, wherein the water collection tank is positioned at the top end of the box body; the water collection tank is used for primary filtration of sewage; the vibration filtering module is located on the box body located below the water collection tank, and used for second-grade filtration of the sewage; the buffer module is arranged in the interior of the box body and used for buffering of the sewage, wherein released sewage impacts static sewage; the control module is used for controlling the flowing of the sewage; and the reverse osmosis module is used for filtering of oil-removed sewage. According to the invention, the vibration filtering module can realize vibration type filtering to the sewage, so the filtering speed of the sewage can be significantly improved, and countless treatment effects are improved; meanwhile, vibration can avoid oil from influencing filtering ability due to adhering on a gauze element.

The present invention relates to methods and uses of photo-labile compounds which are trehalose-6-phosphate or trehalose-6-phosphonate or agriculturally acceptable salts thereof in the treatment of water stress in plants. The invention also concerns methods and the use of the compounds for resurrection of water stressed plants, and for improvement of yield of crop plants under water stressed conditions compared with untreated plants.

The invention discloses a building sewage treatment and pipeline planting system. The energy consumption of a large city accounts for 75 percent of the global energy consumption, and the greenhouse gas emission amount accounts for 80 percent of the global emission total amount; in China, the gross area is larger than 4 billion square meters, and 2 billion cubic meters are newly built each year..., so that the transformation development of building energy-saving and low-carbon cities is urgent, and the three-dimensional afforesting of an urban space is valued more and more. The building sewage treatment and pipeline planting system consists of a sewage methanedization energy utilization system, a sewage resource utilization system and a pipeline planting system; domestic sewage is flushed into a fermentation tank [2] through a sewage discharging pipe [1], and methane gas is collected and used; biogas slurry is discharged into a planting pipe [3] in the planting system through a water collection tank [9] and a biogas slurry communicating pipe [10], so that sewage can be collected and used. By the simple and convenient building afforesting and energy-saving ecological system, an urban roof is changed into a vegetable garden, and conversion of sewage into methane gas new energy and sewage resources is one of the most economic building energy-saving and emission-reduction projects. The building sewage treatment and pipeline planting system has the best advantages of water and energy conservation, economy and environment friendliness.

The invention discloses concrete prepared from waste slurry of a concrete mixing plant. The concrete is characterized by being prepared from the following raw materials in parts by weight: 180 to 350parts of cement, 120 to 190 parts of mineral powder, 50 to 100 parts of coal ash, 820 to 1520 parts of aggregate, 95 to 150 parts of clear water and 10 to 50 parts of waste slurry water with the solidcontent of 4 to 10 percent, 8-18 parts of admixture. The concrete prepared from the raw materials in proportion can reach the grade of C50-C60, and has the characteristics of good fluidity, high density, high pressure resistance and the like.

Sewage of an urban septic tank can generate huge biogas new energy but unfortunately is not developed and used yet up to now. Metropolitan energy consumption accounts for 75% of the total energy consumption of the whole world, and the greenhouse gas emission accounts for 80% of the total greenhouse gas emission of the whole world. The existing urban septic tank cannot meet the social development need; a water-saving energy-saving utilizing system for improving the septic tank is provided, the basic principle of the water-saving energy-saving utilizing system is to improve an original septic tank, and after the sewage is biologically fermented to produce biogas, biogas new energy and a biogas slurry water resource are collected and utilized. The sewage is flushed into a fermentation tank of a biogas production system [2] capable of collecting and fermenting the sewage to generate biogas through a sewage discharge pipe [1], biogas is collected and utilized through a biogas energy collecting and utilizing system [3], and fermented biogas slurry sewage flows into and is stored in the original septic tank inside a biogas slurry sewage resource collecting and utilizing system [5] through a water pressure limit pipe [4]. Because biogas slurry is a precious organic fertilizer, tea growers, vegetable growers and fruit growers purchase the biogas slurry at high price, almost no biogas slurry is discharged from a raw sewage pipe network.

The invention discloses a method for treatment of radioactive waste liquids from a nuclear power plant, including waste liquid treatment and reuse methods. The method of the invention comprises the following steps: dividing radioactive waste liquids into a high-tritium waste liquid and a low-tritium waste liquid according to different tritium activity concentrations; dividing the low-tritium wasteliquid into a low-tritium low-TDS waste liquid and low-tritium high-TDS waste liquid according to different TDS contents; treating the high-tritium waste liquid, and monitoring the treated high-tritium waste liquid for later discharge; respectively treating the low-tritium low-TDS waste liquid and the low-tritium high-TDS waste liquid, and monitoring the treated low-tritium low-TDS waste liquid and low-tritium high-TDS waste liquid for later reuse and / or later discharge. Correspondingly, the invention also provides a system for treatment of radioactive waste liquids from a nuclear power plant. By the method, miscellaneous radioactive waste liquids generated by the operation of a nuclear power plant can be specifically treated, and the water demand of the nuclear island part of the nuclearpower plant can be reduced.

The invention discloses a wastewater treatment device for water and soil pollution treatment. The device comprises a primary sedimentation tank and a secondary sedimentation tank; the secondary sedimentation tank is fixedly mounted on one side of the primary sedimentation tank; a plurality of sedimentation plates are mounted in the primary sedimentation tank and the secondary sedimentation tank; an aeration tank is fixedly mounted on one side, far away from the primary sedimentation tank, of the secondary sedimentation tank; an aeration assembly is mounted on the aeration tank; a filter tank is fixedly mounted on one side, far away from the secondary sedimentation tank, of the aeration tank; a sludge greening tank is fixedly mounted on one side, far away from the secondary sedimentation tank, of the primary sedimentation tank; a neutralizing tank is fixedly mounted on one side, far away from the aeration tank, of a filtering tank; a liquid inlet is formed in the primary sedimentation tank above the sludge greening tank, and a water outlet is formed in the lower end of one side of the neutralizing tank. Sedimentation, aeration, filtration and neutralization of wastewater are realized, the sludge dehydration cost is reduced, reutilization of wastewater products is realized, the energy-saving and environment-friendly properties are higher, the sedimentation effect is improved through the multi-stage sedimentation treatment, and self-cleaning of sedimentation plates is realized.

Energy consumption in a large city is 75% total energy consumption of the world, and a greenhouse gas discharge amount is 80% total greenhouse gas discharge amount of the world. In China, the building gross area is more than 40 billion square meters and buildings having the area of 2 billion square meters are built each year and thus building energy-saving and low-carbon city transition development is extremely urgent and city space stereo-greening gets attention more and more. The invention discloses a building sewage treatment and stereo-greening system. The building sewage treatment and stereo-greening system comprises a sewage biogas energy utilization system, a sewage resource utilization system and a building roof greening system. Life sewage is fed into a fermentation tank [2] from a sewage discharge pipe [1], biogas is collected and used, and the biogas slurry goes through a water-pressure spacing pipe [7], a water collection tank [9] and a water pipe [10] and irrigates artificial soil layer vegetation [3] on a water proof layer [4] of a building roof tower [5]. The building sewage treatment and stereo-greening system is a simple and convenient building greening energy-saving ecological system, realizes transition of sewage into novel biogas energy and a sewage resource and is one of the cost-optimal building energy saving and emission reduction engineering projects. The building sewage treatment and stereo-greening system has the advantages of water saving, energy saving, economical efficiency and environmental friendliness.

The invention discloses an air suction type closestool dredging device, which belongs to the field of an article for daily life, and relates to the field of sanitary ware. The air suction type closestool dredging device aims at overcoming the defects that the existing closestool dredging effect is poor; ordure can be easily splashed out of a urinal; the water is wasted; and the additional cost is increased. The air suction type closestool dredging device comprises a straight-through cylindrical air suction tube, a tube cover, a one-way valve, a piston, a piston rod and a water outlet, wherein the tube cover is arranged at the upper end of the air suction tube; the one-way valve is arranged at the lower end of the air suction tube; the piston is arranged in the air suction tube; the piston rod is arranged on the piston and passes through the tube cover to be connected with a handle; and the water outlet is formed in the air suction tube. The air suction type closestool dredging device has the advantages that strong suction force can be formed; a closestool can be effectively dredged; clean and sanitary environment can also be maintained; and significant effects can be achieved in aspects of relieving the water resource lack condition and reducing the urban sewage discharge.

The invention discloses a Arthrobacter genus Arthrobacter 201‑9, which is isolated from the soybean fields of Bailiang Village, Bailiangzhai Village and Leijia Village, Shuangzhao Town, Xianyang City, Shaanxi Province, and is classified as Arthrobacter based on physiological and biochemical characteristics and 16SrDNA analysis. Bacteria. The present invention takes the soybean rhizosphere soil as the research object, utilizes the gas circulation culture system to separate the hydrogen oxidizing bacteria therefrom, utilizes gas chromatography to detect whether the strains obtained contain hydrogen-absorbing enzymes, and conducts morphological characteristics, physiological Biochemical characteristics and 16SrDNA identification, combined with the above experimental results to determine the species of the strain. To study the growth-promoting characteristics of the screened hydrogen-absorbing-positive strains such as IAA and siderophore, to understand the growth-promoting mechanism of hydrogen-oxidizing bacteria, and to provide a theoretical basis for the "hydrogen fertilizer" theory.

The invention provides a preparation method of potato-derived purified water. The potato-derived purified water is obtained by removing peel of potatoes, crushing, carrying out color protection, pulping, sterilizing, and carrying out high-speed dehydration, ultrafiltration, nanofiltration and reverse osmosis. After the method is used, water discharged out from the potatoes is further processed into drinkable potato-derived purified water while potato flour and starch are produced; the potato-derived purified water can be both used as human and animal drinking water and industrial water, so that a new way for creating economic benefit is opened up for the field of potato deep processing.

The invention provides a treatment method of polyvinyl chloride (PVC) centrifugal mother liquor wastewater, sequentially comprising the following treatment steps of: 1) treatment by a self-cleaning strainer, and recovering PVC particles of backwash liquor of the self-cleaning strainer, 2) decreasing temperature treatment, 3) coagulating sedimentation treatment, 4) ozone oxidation, 5) treatment bya biological aerated filter, 6) ultra-filtration treatment, 7) reverse osmosis treatment, and 8) ion exchange treatment. The treatment method realizes the comprehensive treatment to the mother liquorthrough sequential treatment to the mother liquor, and can realize the high quality recovery to the PVC mother liquor, thereby effectively controlling treatment costs, improving treatment effects, reducing the discharge of COD and quantity of water intake in factories to a great extent, and effectively increasing benefits of PVC manufacturing enterprises.

The invention provides an urban landscape rainwater reservoir system. The urban landscape rainwater reservoir system comprises a rainwater collection pipe and a rainwater collection tank. One end of the rainwater collection pipe is connected with a roof drainage pipe or a drainage ditch, and the other end of the rainwater collection pipe is connected with a filter well. The filter well is connected with a sediment well through a water supply pipe. The sediment well is connected with the rainwater collection pipe through the water supply pipe. The filter well, the sediment well and the rainwater collection tank are all arranged under the soil. The rainwater collection tank comprises a plurality of rainwater collection tank units. The plurality of rainwater collection tank units are closelyconnected to form a honeycomb structure. Each rainwater collection tank unit is provided with at least two first through holes. The first through holes communicate to form a water flow channel. The rainwater collection tank communicates with a municipal water supply network through the water supply pipe. Compared with the prior art, the urban landscape rainwater reservoir system. The urban landscape rainwater reservoir system has the advantages that the problems that the rainwater collection tank is blocked, and the water storage volume ratio is low and the structure bearing capacity is poor can be effectively solved.

The invention discloses a communicated water-saving device in a bathroom, which is combined with a wash basin and a toilet without affecting the original functions thereof, and mounted between the wash basin and a water inlet channel of the toilet, so as to collect and store cleaner hand-washing water, clothes-washing water and the like by the wash basin and use the stored water to flush the toilet. A communicated water tank is communicated through a main tank and a plurality of auxiliary tanks by using two-way thread sealing inner joints of large and small sliding wheels, and filter meshes are arranged on inner circular cleaning holes and a water inlet of the main tank. A drainage outlet of the wash basin and a water inlet of the communicated water tank are communicated by a water-storagepipeline containing a control water-storage valve; the drainage outlet of the wash basin and a ground sewer are communicated by a discharge pipeline; a water outlet of the communicated water tank andthe water inlet of the toilet are communicated by a flushing pipeline containing a control flushing valve; and a blowdown hole of the communicated water tank and the ground sewer are communicated bya blowdown pipeline containing a control blowdown valve. Water drained from the wash basin is firstly injected in the communicated water tank by the water-storage pipeline, the rest water is drained into the ground sewer by the discharge pipeline and the control water-storage valve can be closed for avoiding the drained water entering into the communicated water tank. The control flushing valve can be opened to flush the toilet and closed after that. The control blowdown valve can be opened to blow down and closed after that. Condition in the communicated water tank can be viewed by transparent or semi-transparent communicated water tank walls, and the cleaning holes can be opened for cleaning. The device has good water-saving effect and can particularly alleviate water shortage.

The invention provides a preparation method of potato-derived purified water. The potato-derived purified water is obtained by removing peel of potatoes, crushing, carrying out color protection, pulping, sterilizing, and carrying out high-speed dehydration, ultrafiltration, nanofiltration and reverse osmosis. After the method is used, water discharged out from the potatoes is further processed into drinkable potato-derived purified water while potato flour and starch are produced; the potato-derived purified water can be both used as human and animal drinking water and industrial water, so that a new way for creating economic benefit is opened up for the field of potato deep processing.

The invention discloses a process for treating oil field water. The process comprises the following process steps of: (1) allowing the oil field water to pass through a settling tank, adding alkali into the settling tank to adjust the pH value to be about 9, and settling; (2) after settling, allowing the oil field water to enter a multiple-effect evaporating tank to perform vacuum evaporation to produce solid sodium chloride; (3) further heating and concentrating salt-making mother liquor in the last step by using a concentrating tank to form concentrated halogen; (4) producing bromine by using the concentrated halogen; (5) settling the bromine-making mother liquor in the last step to produce calcium chloride dihydrate; and (6) reclaiming water from which the salt is extracted by the steps from (1) to (5) and using the water as industrial water. The process has the advantages of reclaiming useful resources, such as inorganic salt and the like, in the oil field water and greatly relieving water shortage in petroleum extraction regions.

The invention belongs to the field of recycling treatment of domestic wastewater, and specifically relates to a recycling device for kitchen sewage. The recycling device comprises a box body, a water collection tank, a vibration filtering module, a buffer module, a control module and a reverse osmosis module, wherein the water collection tank is positioned at the top end of the box body; the water collection tank is used for primary filtration of sewage; the vibration filtering module is located on the box body located below the water collection tank, and used for second-grade filtration of the sewage; the buffer module is arranged in the interior of the box body and used for buffering of the sewage, wherein released sewage impacts static sewage; the control module is used for controlling the flowing of the sewage; and the reverse osmosis module is used for filtering of oil-removed sewage. According to the invention, the vibration filtering module can realize vibration type filtering to the sewage, so the filtering speed of the sewage can be significantly improved, and countless treatment effects are improved; meanwhile, vibration can avoid oil from influencing filtering ability due to adhering on a gauze element.