350results about How to "Improve water resource utilization" patented technology

The technological process of treating papermaking effluent for reuse based on membrane integrating technique has membrane bioreactor, continuous membrane filter and reverse osmosis unit integrated for high efficiency treatment of papermaking effluent. The papermaking effluent treating process includes drum filtering and flocculating deposition to eliminate most suspended matter and colloid matter, anaerobic and aerobic biochemical treatment, filtering in membrane separating element, continuous membrane filtering, and treating with reverse osmosis membrane to reach the papermaking water standard. The present invention is especially suitable for treating hard-to-treat papermaking effluent.

The invention discloses a reservoir, sluice and pump cluster combined saltwater tide control and scheduling method. The method comprises the following steps of: S1. establishing a Pearl River basin distributed hydrological model based on EasyDHM; S2. establishing a backbone reservoir cluster saltwater tide control and scheduling model; S3. calculating a flow process of a key node of the basin by utilizing the Pearl River basin distributed hydrological model based on EasyDHM, and inputting the flow process into the reservoir cluster saltwater tide control and scheduling model, thus obtaining a flow control process of a downstream key section through the model; and S4. determining a draining sluice, a freshwater releasing for water replenishing and saltwater tide control time and a draining saltwater tide control flow by utilizing a sluice and pump cluster freshwater releasing for water replenishing and saltwater tide control scheduling model. The reservoir, sluice and pump cluster combined saltwater tide control and scheduling method analyzes the runoff characteristics of the Pearl River basin in a dry season, forecasts the inflowing process of the key section of the basin during a drought period, and establishes an optimized scheduling model for the backbone reservoir cluster of the basin, thus achieving the coupling, nesting and rolling correction of real-time scheduling schemes on the basis of optimizing the scheduling schemes, overcoming the disadvantages brought by a deterministic scheduling model, and greatly improving the utilization rate of water resources during a scheduling period.

The invention relates to an integral indoor ecological circulating water culture system, belonging to the technical field of culture water biological purification. The system comprises a vinyl house, a sedimentation basin, a methane tank, a biological filter pool A, a biological filter pool B, a biological filter pool C, a water storage tank, a breeding pond A, a breeding pond B, a breeding pond C, a breeding pond D and a breeding pond E, and wherein the sedimentation basin, the biological filter pools, the water storage tank, and the breeding ponds are symmetrically arranged in the vinyl house in a straight line. A water collecting main pipe, a back-flow pipe and an aeration main pipe are sequentially arranged on two sides of the sedimentation basin, the biological filter pools, the water storage tank and the breeding ponds. After being processed by multiple steps such as automatic collection and sedimentation, filtration, and absorption and conversion by water plant and stuffing materials, the breeding water of the system enters into the water storage tank to be subjected to reoxygenation and sterilization, then the breeding water is promoted into the breeding ponds for circulation and utilization through an immersible pump, thus the production cost of indoor industrial culture is lowered, and the system has remarkable popularization and application prospect in water shortage areas in our country for developing the high-density culture.

The invention discloses a hydrodynamic-cavitation enhanced water treating apparatus, comprising a pretreatment unit, an enhanced cavitation formation device, a water feedback cycle treatment loop, a multi-parameter water quality detection/display system and a smart automatic control system, wherein the multi-parameter water quality detection/display system is composed of a pressure sensor, a redox potential sensor, a flowmeter, a pH sensor, a conductivity sensor, a dissolved oxygen sensor, a chemical oxygen demand sensor, a total organic carbon sensor, a temperature sensor and an LED (Light-Emitting Diode) touch display screen, all of which are orderly mounted in a water outlet pipeline; the two ends of the water feedback cycle treatment loop are connected to the front section of a water outlet electromagnetic valve and the front end of a water pump of a water inlet pipeline, respectively; and the water outlet electromagnetic valve and a cycle-treatment electromagnetic valve are connected to a programmable controller, respectively. The hydrodynamic-cavitation enhanced water treating apparatus is used for water treatment and purification, and realizes online detection and display of a plurality of water quality parameters and operating parameters therein and automatic control on the operation thereof by means of a plurality of sensors.

The invention discloses a water-retaining and slowly-release compound fertilizer and a preparation method thereof. The water-retaining and slowly-release compound fertilizer is prepared from the following components in parts by weight: 60-75 parts of chemical fertilizers, 1-6 parts of a water-retaining agent and 19-39 parts of filler, wherein the chemical fertilizers are at least two of a nitrogen source fertilizer, a phosphorus source fertilizer and a potassium source fertilizer; the water-retaining agent is at least one of polyacrylamide, sodium polyacrylate and sodium carboxymethylcellulose; the filler is at least one of bentonite, attapulgite, kaolin, talcum powder and gypsum powder. The preparation method comprises the following steps: 1) mixing the chemical fertilizers, the water-retaining agent and the filler to obtain a mixture; 2) adding water in the mixture and granulating; stopping adding water when small particles are formed, then adding the filler powder, granulating, and finally drying to obtain the water-retaining and slowly-release compound fertilizer. The water-retaining and slowly-release compound fertilizer disclosed by the invention has a water-retaining property and a slowly-release property, and is capable of reinforcing the water-retaining and water-holding capacities of soil, increasing the utilization rate of water resources, increasing utilization rate of the fertilizers, reducing nutrient loss, resisting drought, and reducing the pollution of fertilization to an ecological environment; the preparation method is simple and easy to process and produce.

The invention relates to a method for grading and utilizing waste material of sandstone system production, including the following steps: 1) sieving and washing are carried out; 2) slurry obtained by sieving is subject to separation of fine sand powder and slurry by virtue of a hydrocyclone grading device; 3) the fine sand powder is subject to high frequency sieving and dewatering, and the slurry is placed into a setting device, so as to further separate water and concentrated slurry; 4) water is returned to the washing step, and the concentrated slurry is subject to filter pressing or filtering and then is delivered to a waste material stock yard. In the method for grading and utilizing waste material of sandstone system production provided by the invention, a hydrocyclone grading device is added in slurry sand grading production process to separate fine sand powder and slurry, and a high frequency sieving dewater procedure is adopted, recycling of fine sand powder from slurry is realized, by adopting the method of the invention, more than 90% of useful material can be recycled from slurry, and more than 70% of recycling can be realized after waste water is purified.

The invention discloses a method for forecasting the water saving irrigation of a lawn. The method comprises the following steps of: dividing rotational irrigation regions of the lawn, measuring the soil moisture content at several points in the same region and taking an average value as an actually-measured soil moisture content; determining the soil type and the lawn type, calling the calibration coefficient of the soil moisture content and the water demand coefficient for the growing of the lawn from a database; calculating whether the lawn is needed to irrigate according to the actually-measured soil moisture content and a lawn water saving irrigation decision forecasting model, if needed, determining the amount of irrigation water and the irrigation time. The method for forecasting the water saving irrigation of the lawn and the system thereof can assist lawn maintenance skilled workers and administrators to draw up a proper irrigation system to a large extent, the research result of the lawn irrigation is converted into the production practice of the lawn irrigation, thereby improving the quality of law maintenance, achieving the purpose of water saving irrigation and improving the utilization rate of water resources.

The invention discloses a cloud based irrigation district water-saving irrigation decision-making support system. The system comprises a cloud server, wireless data transmission modules, single chip microcomputers, sensors and a gate, and the cloud server comprises a database and a webpage. Decision-making steps of the system include: setting up the database, carrying out multi-point measurement of paddy field moisture and water level of a district to be measured, and storing average data in the database; automatically capturing data of an official weather forecast website, storing the data in the database, and using temperature data for estimating water requirement of crops; according to measured data and a corresponding water balance model, computing to judge whether irrigation is needed or not, and if so, determining irrigation amount and irrigation time; and enabling the webpage to be capable of serving as a data display terminal and a lower computer control terminal. The irrigation district water-saving irrigation decision support system is set up on the basis of the cloud server, data is transmitted through a mobile network, and accordingly data transmission range can be enlarged, and irrigation district informatization management level is improved.

An intelligent capillary water supplying system for irrigating the plant on the slope is composed of water pool, master capillary water-conveying pipe, the capillary water-supplying trunks with an closed end and connected to said master pipe, the capillary water-supplying branch pipes with one closed end and water-supplying holes, and connected to said trunk, gradient water-sucking head in the water pool, cleaner for said water sucking head, and the valves for said master pipe and cleaner.

The invention discloses a dry farming direct seeding planting method of rice, which comprises the steps of preparing sprinkling irrigation equipment: the lifting micro-sprinkling irrigation equipment is buried under to-be-planted ground for 30-40cm; processing a field: straws of last stubbles of crops on the to be planted ground are cut into sections, the lengths of the straw sections are 2-20cm, the straw sections are broadcast in soil, a base fertilizer is applied on the soil, and the soil is subjected to ploughing and rotary tillage; preparing rice seeds and seeding: the selected rice seeds are sown on the processed soil uniformly, and then the soil is compacted; and performing sprinkling irrigation: the lifting micro-sprinkling irrigation equipment buried under the ground is used for irrigating the soil sown with the rice seeds, and the water content of the surface of the soil is 40-60%. Therefore, the precision irrigation to the crops is realized; excess water accumulation in the rice field is avoided; and the utilization ratio of water resources is increased. In addition, the straws are turned into organic fertilizers with the passage of time; straw turnover is realized indeed; the method contributes to improving the yield and quality of grains; and environmental pollution due to straw burning is avoided.

The invention relates to a composite water treatment agent special for coal washing wastewater and a preparation method thereof. The composite water treatment agent is composed of the following components in parts by weight: 20-40 parts of chitosan, gelatine or Arabic gum used as a flocculant, 20-30 parts of activated carbon, diatomite or neutral aluminum oxide used as an adsorbent, 40-60 parts of diatomite or activated clay used as a filler, and 0.5-1 part of Tween-80 or alkanolamide used as a suspending aid. The composite water treatment agent provided by the invention can be used for greatly lowering the color degree and COD (chemical oxygen demand) of treated water, ensuring the treated water to meet the reuse requirement, enormously reducing the water consumption of enterprises and improving the utilization rate of water resources.

The invention discloses a multi-scale soil moisture content synergistic observation device. The device is composed of a wireless observation network WSN composed of a plurality of TDR soil moisture sensors, a region soil moisture measurement system CRS1000b, a satellite platform, a notebook computer hardware device platform and multi-scale soil moisture content synergistic observation control terminal software; the soil moisture content synergistic observation is launched under three-scale soil moisture content synergistic observation scheme of point, region and satellite pixel element; the existing advanced device and advantage technology method are integrated, the multi-scale soil moisture content synergistic observation is realized through the synergistic observation scheme design, the bottle neck of soil moisture content remote sensing retrieval result verification is broken through, the application and research field are developed; the popularization application can be served for most strict industries such as water resource management, agricultural water-saving and drought observation, the irrigation benefit and water resource utilization rate are improved.

The invention belongs to the technical field of irrigation forecasting. The invention discloses a real-time irrigation forecasting system based on regional soil moisture monitoring and remote sensingdata. The real-time irrigation forecasting system comprises an irrigation area monitoring module, a crop image acquisition module, an environment data acquisition module, a central control module, a soil moisture prediction module, an irrigation area identification module, an irrigation prediction module, an actual water consumption module, a watering module, a water level depth measurement module, an alarm module, a wireless communication module, a data storage module, a data management module, a terminal module, a power supply module and a display module. According to the real-time irrigation forecasting system, the prediction precision can be improved and the generalization ability can be ensured through the soil moisture prediction module, so that large-scale deployment and expansion are facilitated, and better expandability and transportability are achieved; the irrigation area recognition module meets the requirement for extracting irrigation information of small plots, so that the precision of an irrigation area monitoring result is improved; and the real-time irrigation forecasting system can be widely applied to remote sensing identification and extraction of irrigation areas with high spatial resolution.

The invention discloses a multi-opening intelligent irrigation system and method for rice fields. Sensors in the system are distributed in all rice field pieces and connected with a control device. The other end of the control device is connected with an electric regulating valve. A water conveying pipeline is connected with a water source and perpendicular to ridges. A water pump and the electric regulating valve are installed in the section between the water source and the rice fields. The multi-opening intelligent irrigation system and method have the advantages that a traditional irrigation system is abandoned, an irrigation system is determined according to actual water requirements of crops, and therefore the utilization rate of water resources can be increased, agricultural water consumption is lowered, and the ecological environment quality of farmlands can be improved; the irrigation management level is improved, extensive manual operation is changed, labor consumed during irrigation is reduced, automatic water control is achieved, management cost is reduced, and benefits are remarkably improved; rapid irrigation can be achieved, all rice field pieces can be independently irrigated at the same time, water does not need to flow from one rice field piece to another rice field piece, and therefore irrigation can be uniform, and yield consistency and total yield are increased.

The invention relates to a central type system for purifying and supplying drinking water, wherein the parts connected with a water purifying pipeline comprise: a water purifying unit and a water purifying water tank connected therewith, and a second control valve arranged between the water purifying unit and the water purifying water tank; a soft water unit and a pure water unit connected therewith, a water purifying pressurizing delivery pump arranged between the soft water unit and the water purifying water tank, and a third control valve arranged between the pure water unit and the soft water unit; a pure water tank connected with the pure water unit, a fourth control valve arranged between the pure water tank and the pure water unit, and a pure water delivery pump connected with the pure water tank; and a control system which is connected with the water purifying unit, the soft water unit, the second control valve, the third control valve and the fourth control valve. The invention also discloses a using method of the system. The system and the method can supply water with different qualities, such as pure water, soft water, direct drinking water, pure water, and the like; the system is convenient to mount and use; and the comprehensive water resource utilization rate of the system can reach between 80 and 90 percent.

The invention discloses a system and a method for farmland intelligent-control water distribution management. The farmland intelligent-control water distribution management system comprises a terminal user card, an intelligent water supply controller and a water resource management system, wherein the terminal user card exchanges information with the intelligent water supply controller through a wireless radio frequency technique; the intelligent water supply controller is connected with the water resource management system; and background analysis software is loaded on a PC server of the water resource management system. The farmland intelligent-control water distribution management method comprises four steps, namely a step of analyzing data and formulating a scheme, a step of setting quota according to the scheme, a step of setting parameters and intelligently supplying water and a step of acquiring information, feeding back and adjusting. The invention can realize planned water use of agricultural irrigation, scientific water distribution, precise irrigation and intelligent control, and provides an effective water saving-distributing management scheme particularly for the problem of reasonably utilizing water resources in arid water-deficient areas.

The invention discloses a conservation method of basic on-site concrete of a transmission tower in desert areas. The conservation method is characterized in that a concrete conservation film is coated on the surface of basic concrete, a drip conservation device is utilized, and water-drenching conservation is performed on the surface of concrete continuously in a drip manner during the conservation period to save water consumption for conservation on the premise of guaranteeing conservation effect. The drip conservation device can be machined in to a rectangular, square or circular shape according to different basic shapes of the conserved towers. The drip conservation device comprises a water container, a water injecting pipe, a water injecting port, pressure equalizing water diversion pipes, a drip main pipe, drip branch pipes, and adjusting valves. The water container is arranged on a support, and the bottom of a side of the water container is connected to the water injecting pipe and the drip branch pipes through the adjusting valves. Water-drenching conservation is performed on the surface of concrete continuously in a drip manner during the conservation period, concrete conservation effect is guaranteed, water amount for conservation is reduced, and labor intensity of construction staff is reduced.

The invention discloses a method for treating papermaking wastewater based on a combined process including an integrated membrane technology and an advanced oxidation technology. The method comprises the steps of treating the papermaking wastewater through a previous period anoxic/aerobic biochemical process, then putting the wastewater into a submerged ultrafiltration unit and a nano-filtration treatment unit in sequence, and treating nano-filtration concentrated discharged water through a Fenton advanced oxidation technology to realize up-to-standard release. The method disclosed by the invention is a novel treatment technology of papermaking wastewater, the papermaking wastewater is formed by mixing pulping production wastewater, papermaking production wastewater and other wastewater on production as well as domestic sewage and abnormal rainwater, the CODcr (chemical oxygen demand) and pH value are adjusted, most of suspended objects and colloidal substances are removed through a rotary-drum filtration process and flocculating sedimentation, then the papermaking wastewater is subjected to anoxic/aerobic biochemical treatment and then enters the submerged ultrafiltration treatment unit, penetrating fluid enters a nano-filtration treatment system, the penetrating fluid subjected to nano-filtration can meet requirements for papermaking production water through detection, and the nano-filtration concentrated discharged water is treated in a Fenton advanced oxidation treatment unit to realize up-to-standard release. The method is particularly suitable for treating papermaking wastewater which is very difficult to recycle through a conventional sewage treatment method.

The present invention provides a wisdom garden management system. The system comprises: a data layer module configured to obtain wisdom garden data and store the wisdom garden data to a wisdom gardendatabase; a service layer module configured to publish the wisdom garden data in the wisdom garden database as service information through middleware; and an application layer module configured to generate a computing instruction according to the service information. Correspondingly, the invention further provides a wisdom garden management method. The wisdom garden management system and method changes a traditional urban garden labor management mode, and change manual pipe-dragging spray irrigation at fixed time and fixed places to a mode of intelligent control of sprayer spraying according to the newest actual measurement environment so as to achieve accurate irrigation, save human cost, improve water resource utilization rate and achieve urban garden low-carbon management.

The invention provides a method for treating chlorosilane tail gas. The method comprises the following steps : 1) at an exhaust gas condensation pretreatment stage, causing exhaust gas at a chlorosilane leaching stage to enter a primary leaching tower to remove acid gas; lowering the temperature of chlorosilane gas contained in the exhaust gas to below the boiling point, transforming most of chlorosilane gas in the tail gas from a gaseous state to a liquid state; causing remaining non-condensable gas, such as the non-condensed tail gas, to enter a next stage to be treated; causing condensed liquid chlorosilane into a chlorosilane condensate storage tank, pressurizing the liquid chlorosilane through a condensate conveying pump and then conveying the liquid chlorosilane to a hydrogenation storage tank to be stored for standby application; 2) at the chlorosilane leaching stage, causing the tail gas having undergone condensing pretreatment to undergo secondary leaching to remove most of acid gas, collecting the non-condensable gas in the remaining tail gas, such as hydrogen and nitrogen, for standby application; and causing leached waste water to undergo treatment in a next stage; and 3) at a waste water treatment stage, causing the leached waste water to undergo a neutral reaction to be settled to be solid sludge to be discharged.

The invention discloses an all-weather all-region cycling ecological agriculture system including a culturing greenhouse group, a plantation greenhouse group, an acid adjustment pool group, a fermentation cylinder group, a gas tank group, a waste water separator set, a solar heater set, a storage battery set, and a wind energy generator set, a fermentation cylinder is connected with an acid adjustment pool through a pipeline, a gas tank is connected with the fermentation cylinder through a pipeline, the waste water separator set includes a plurality of waste water separators which are connected with the fermentation cylinder through a pipeline, the solar heater set includes a plurality of solar heaters, the storage battery set supplies power to the system, and the wind energy generator set includes a plurality of wind energy generators. The all-weather all-region cycling ecological agriculture system is reasonable in design, convenient to maintain, organize, and implement, and high in automation, the energy supply needed by itself is solved by means of natural resources, a cleaning energy capable of cycle regeneration and various organic agricultural and sideline products can be provided to people, and environment is beautified.

The invention discloses a sprinkler irrigation system based on big data, comprising: an acquisition module, a central processing module and a water spray module, the acquisition module includes a PM2.5 sensor, a dust sensor, a temperature sensor, a humidity sensor and a GPS, and the central processing module includes an MCU And communication module, water spray module includes solenoid valve and PWM control circuit; PM2.5 sensor, dust sensor, temperature sensor, humidity sensor, GPS, PWM control circuit and communication module are respectively connected with MCU, solenoid valve is connected with PWM control circuit. The present invention adjusts the amount of sprinkling water in real time through the information of particulate matter, dust concentration, temperature and humidity, effectively improving the utilization rate of water resources and reducing waste; according to the historical sprinkling amount data, the amount of sprinkling required for different road sections in different periods is predicted by cloud computing It also shows that it is beneficial to make preparations in advance and effectively improve work efficiency.