3580 results about "River water" patented technology

The invention discloses a method for managing town black and olid river pollution in situ by utilizing biological repair technology, which takes the steps and measures of aerating and oxygenizing in riverway, adding a complex microbial agent, biologically repairing bottom sediment, arranging a bio-nest system and the like, so as to control and eliminate the exogenous and endogenous pollution of the river, purify the water quality of the river, improve the self-purification ability of the water body and achieve the purpose of eliminating black and olid. The method does not need to build structures in the riverway or lead the river water out of the riverway to be treated, or dredge the bottom sediment in the river, therefore the method is generally applicable to incomplete sewage interception and dredging or the rivers which can not be intercepted sewage or dredged temporarily, and the in situ treatment to the riverway which is affected by tide and has complicated fluid variation. Therefore, the method which can lead the water body to recover normal ecological function provides the practical, economic and convenient treatment method for various town black and olid rivers.

The invention relates to a method for calculating the tracing contribution of a sudden accidental water pollution source at a point source, which is effective in rapid tracing of a river basin and environmental management and protection of the river basin. The method includes: according to the natural geographical features of the river basin, determining the control area corresponding to the control section of the river basin; using the monitoring data of the pollution source and the statistical data of the pollution source to budget regarding the pollution source in the river basin; using a one-dimensional unsteady water quality model to establish the relationship between pollution source and water quality of the section; using the relationship between pollution source and water quality of the section to calculate the contribution coefficient of the pollution source within the river basin and characterizing the contribution of pollution sources. The method is novel and unique, easy tooperate and use, accurate in calculation, and high in efficiency, makes full use of the basic information of the existing pollution source, quickly feeds back the state of the pollution source in theriver control section in a short time, locks the pollution source which has relatively greater contribution to the river water quality in the river basin, provides the support for the pollution tracing of the river basin, and is effectively used for the environmental protection and treatment of the river.

The invention belongs to the technical field of river water body pollution control and in particular relates to a multiple-element compound flocculating settling agent and the application of the multiple-element compounded flocculating settling agent in arsenic pollution water body treatment. The multiple-element compounded flocculating settling agent is prepared by compounding malysite, aluminium salt, hypermanganate, polyacrylamide and aqueous solution. The multiple-element compounded flocculating settling agent can be applied in the arsenic pollution water body treatment to remove arsenic in the arsenic pollutant water body. The concentration of the arsenic in the treated water can meet or is superior to the specified requirement of three types of water on the arsenic concentration in the national earth surface water environment quality standard (less than 0.05 mg / L). The invention also can be used for removing heavy metals such as copper, chromium, cadmium, lead and the like in water by sedimentation. The multiple-element compounded flocculating settling agent can be used together with a multiple-element compounded metal oxide arsenic removal setting agent in static or flowing arsenic pollution water body treatment for removing the arsenic in the water body polluted by arsenic.

A solar thermoelectric power generation system comprises a solar thermoelectric power generation system body, a concentrated solar device, a metal photothermal conversion device, a water circulating cooling system and a solar heat absorption coating. Sunlight and concentrated sunlight can irradiate on the metal photothermal conversion device which is coated by the solar heat absorption coating, the solar heat absorption coating converts light energy into heat energy, and then the heat energy is transmitted to the metal photothermal conversion device, the metal photothermal conversion device transmits the heat energy to a hot end of a thermoelectric power generation device, a cold end of the thermoelectric power generation device is cooled by the seawater or river water or lake water or pond water or underground water circulating cooling system, and the solar thermoelectric power generation system body which is composed of the hot end of the thermoelectric power generation device and the cold end of the thermoelectric power generation device can convert heat into electrical energy.

The invention discloses a riverway illegal sewage drain detection robot fish comprising a bionic fish assembly, a controller, a water quality sensor, a river flow velocity and sonar sensor and a GPS (global position system) positioning component, wherein the controller, the water quality sensor, the river flow velocity and sonar sensor and the GPS positioning component are installed on the bionic fish assembly. The sensors are utilized for accurately positioning a sewage drain outlet by the robot fish, and water quality data detected by the water quality sensor, river flow velocity data detected by the river flow velocity and sonar sensor and position information of the GPS positioning component after positioning are subjected to comprehensive treatment and are sent to an environment monitoring center by the controller. The riverway illegal sewage drain detection robot fish has the advantages of simple structure, high intelligent degree, wide application scope, strong real-time detection capability, high detection accuracy, and the like.

The invention relates to an in-situ biological-ecological recovery integrated system for an urban river water body. The in-situ biological-ecological recovery integrated system is capable of effectively preventing the problems of unqualified fluvial cross section water body and aquatic ecosystem damage and further improving the landscape effect. According to the technical scheme adopted by the invention, the method is as follows: close-to-nature riverside buffer zones are constructed on side banks of a river reach from upstream to downstream; the river reach, at which the close-to-nature riverside buffer zones are positioned, is internally and sequentially provided with a pretreatment unit, a first ecological floating bed unit, a first ecological filtration dam unit, an aquatic plant unit, a second ecological floating bed unit, a second ecological filtration dam unit, a biomembrane-enhanced purification unit including a plug-flow aeration unit, a habitat improvement unit and an aquatic organism functional group construction zone from upstream to downstream. The in-situ biological-ecological recovery integrated system does not need to occupy land area except for a riverway, is stable in treatment effect, does not influence drawing off of floodwater in the riverway, can be used for solving the problems of unqualified fluvial cross section water body and aquatic ecosystem damage and improving the landscape effect, and has great economical and social benefits.

The invention discloses a water quality online monitoring system which comprises a pump, a liquid storing unit, a reacting-detecting unit and a multi-pass direction selecting valve. The multi-pass direction selecting valve is provided with a sample introducing passage, a reagent passage, an analytical passage and a common passage communicating with the liquid storing unit; the reacting-detecting unit is composed of a light source, a reacting-detecting chamber, a detector and an analytical device; one end of the reacting-detecting chamber communicates with the analytical passage, and the other end is connected with a valve. The invention further discloses a water quality online detecting method. The monitoring system has the advantages of simple structure, high measurement accuracy and high response speed. Furthermore, the system can measure a plurality of parameters in a water sample, and can be widely applied to the online monitoring of water quality of various water sources, such as domestic sewage, industrial sewage, stream water, river water, etc.

A water quality purification system for a hybrid artificial wetland includes a first aerobic artificial wetland, an anaerobic artificial wetland, and a second aerobic artificial wetland. Here, the first aerobic artificial wetland induces a vertical flow of water, which is to be purified, and allows pollutants to be removed. The anaerobic artificial wetland induces a horizontal flow of treated water which is introduced from the first aerobic artificial wetland, and allows pollutants to be further removed. Additionally, the second aerobic artificial wetland induces a vertical flow of treated water which is introduced from the anaerobic artificial wetland, and allows air to be supplied inwardly such that the amount of dissolved oxygen of the introduced treated water increases.

The invention belongs to the technical field of treatment of environment pollution, and more specifically relates to a modular system for purification of a polluted river water body and application of the same. The modular system mainly comprises a biological grating module, an elastic filling material adsorption bed module, a microbial ecological decomposition suspending bed module and a sunken plant ecological purification suspending bed module. The biological grating module is composed of a framework, sunken plants, floating plants and emerged plants; the elastic filling material module consists of a framework structure, hydrophilic elastic filling materials and hydrophobic elastic filling materials; the microbial bed module comprises a framework structure, a micropore aeration mechanism and microbes; and the sunken plant purification bed module is composed of the species group of sunken plants and a bed body. According to the invention, the position of the polluted river water purification modules in a water body can be adjusted according to pollution degrees of the water body; the modular system can effectively purify water quality of a polluted river water body and a black and odorous river water body and reduce river pollution load; therefore, the invention is of significance for purification of river water bodies.

The invention discloses a method for ecological restoration and water quality conservation of river water. according to the method, an aeration oxygenation system consists of a solar cell panel, a support connector, an air pump, an aeration tube and an air distribution plate and is used for maintaining the dissolved oxygen level in the water; an ecological floating bed system consists of a strong buoyancy carrier and an emergent aquatic plant and is used for removing pollutants out of water and gathering and transferring heavy metal; and a filler system is used for providing a lot of adhesion habitats for microbial flora, phytoplankton, protozoon and tiny metazoan so as to co-build and form a biological membrane which efficiently and quickly purifies the pollutants. By adopting the method, the organic matters such as COD, nitrogen, phosphorus and the like, and other pollutants in the water can be efficiently removed, the water is purified, an ecological system of the river way is improved, and the self-cleaning capacity of the water is restored.

The invention discloses a method for control and treatment of water pollution of a black and odorous river. The method includes following steps: S1, dividing key river reaches or control units; S2, calculating water environment characteristics, and determining water quality targets of the control units; S3, calculating the water environment capacity and pollution load accounting according to the water quality targets; S4, distributing the pollution load cutting amount to each control unit; and S5, performing overall treatment layout, establishing a river water quality process model, putting treatment information into the model, inspecting whether the water quality targets reach the standard, if not, repeating the steps of S1-S5 until the water quality reaches the standard, and if yes, applying the method to practical water pollution treatment of black and odorous rivers. According to the method, the problem of treatment of the black and odorous water body is accurately quantified, key chemical indexes which cause the water body to become black and odorous are extracted, the setting of each treatment project and the specific project amount can be guided through quantitative calculation, and the project management is more accurate and economic.

The invention discloses a safety assessment system for a river water environment of a plain river network, and belongs to the field of water environment safety assessment. By taking a DPSIR model as a theoretical basis, water environment safety assessment indexes are divided into five aspects of social and economic driving force, a pollution source and water resource development pressure, a water environment health present condition, a river service function and an environment supervision capability, and twenty assessment indexes including permanent population density, GDP per capita, a building land use proportion and the like are established. The water environment safety assessment process comprises the specific steps of obtaining a survey value for assessing an index of each layer of a river; determining an assessment standard value of the index; performing standardization processing of the survey value of the index; calculating an index score of a river water environment safety assessment index layer; calculating an index score of a river water environment safety assessment criterion layer; and calculating and assessing a river water environment safety index. According to the system, a scientific assessment method is established for the plain river network, and the water environment safety condition and problem of the plain river network can be quickly and effectively identified.

The invention belongs to the river water pollution treatment technology field, and particularly relates to a method for controlling water bodies polluted by mercury, lead, cadmium, copper, chrome, arsenic and other heavy metals by utilizing a multi-compound flocculation settling agent. The multi-compound flocculation settling agent is formed by preparing iron salt, aluminum salt, potassium permanganate, polyacrylamide and other solutions. The method for controlling lakes, reservoirs, rivers and other water bodies polluted by the heavy metals by utilizing the multi-compound flocculation settling agent mainly comprises the following steps of controlling the dead or flowing water bodies polluted by the heavy metals; the water after being controlled can satisfy the regulation and the requirements on three types of water bodies for heavy metal pollutants in the surface water environmental quality standard of China. The method for controlling the polluted water bodies also can be used for removing the heavy metals, iron, manganese, phosphate and other pollutants in ground water, drinking water, industrial wastewater and other water bodies.

The invention relates to a purification method of controlling a foreign pollution source and ecologically restoring a black-odor riverway. The purification method adopts a process combining processes of pretreating sewage outlet wastewater by virtue of a biofilm purification device, planting aquatic plants in the riverway, stocking aquatic animals, installing aeration oxygen increasing equipment and the like. Compared with an existing river ecologic restoration process, the purification method can be used for effectively controlling a sewage outlet of a small size polluted riverway to be adapted to great fluctuation of the riverway water quality and the climate conditions, has strong adaptability to the water quality variation, is good in resistance to shock loading and can be used for effectively removing the phenomenon of black-odor river water as well as has a relatively good effect of removing organic carbon, nitrogen and phosphorus; According to the purification method, the treated effluent quality is stable, the engineering investment is little, the running cost is low, and the purification method is suitable for treating riverway waters with various pollutions.

The invention relates to the technical field of tunnel shield construction, in particular to a method for relieving and cutterhead repairing of a shield machine in a weathering groove. By means of the method, the problems of complex process, long construction period, high cost and the like during shield body relieving and cutterhead repairing in conventional construction are solved. The method comprises the steps of: carrying out grouting reinforcement on collapse body in front of a cutterhead, collapse body above the cutterhead, collapse body above shield tail and collapse body of an anchor cable; building water pressure of cut, eliminating counter-force of tunneling, retreating the shield body and relieving the cutterhead; drilling, exploding and repairing caverns, cleaning the excavated bin and repairing internal structure, body structure and accessory structure of the cutterhead to ensure that the shield body recovers tunneling. The method has the advantages of simple process, short construction period, low construction cost, strong applicability and the like. By means of the method, the relieving and the repairing of the cutterhead of the tunnel are successfully completed; the risk that river water backward pouring into the tunnel is avoided; the shield machine can rapidly recovering the normal tunneling; and the favorable economic benefit and social benefit are obtained.

The invention discloses a river water level monitoring method based on monocular camera, which is an information processing method belonging to the video monitoring field, that is using light reflection characteristic difference between the river plane surface and the bank plane surface to determine water level height with horizontal pixel projection algorithm (HPIP) for video collected images. The method includes the steps: (1) using affine transformation for executing geometric correction to image; (2) executing histogram equalization process for video image greyscale; (3) determining water level height with horizontal pixel projection algorithm; (4) real time and robust tracking water-level fluctuation. The invention has the advantages of easy realization, strong robustness, high reliability, high real time property or the like, and can provide real time dependable information for hydrology monitoring.

The invention relates to a method for discharging water separated, used in mixed tube of city. Wherein, it comprises: arrange diversion tube at the outlet of former discharge tube; the section of diversion tube near the discharge tube has detecting area; the detecting area is arranged with water quality detecting sensor which will transmit the detected water quality to the digit data processor; the processor will process the data to form river water quality factor, to be compared with diversion critical value, to control and select the diversion device to confirm that the water is discharged from the rain discharge tube or sewage tube. The invention can automatically divert water via water quality, to make rain into rain discharge tube and sewage into sewage tube.

The invention discloses a river channel permeable reaction wall system and the application thereof in water pollution treatment. In the system, one or a plurality of water treatment units are arranged on water banks in a ground mode, a half-buried mode or an all-buried mode; a water distribution system leads the river water to be continually treated by the water treatment units and then be returned to the river channel, or the water distribution system leads the surface-source type polluted water body near the river channel to be treated by the water treatment units and then be returned to the river channel; the water treatment unit comprises an water inlet groove, a permeable reaction wall and a water outlet groove, wherein, the water inlet groove is separated from the permeable reaction wall by a reticular grating. The system properly alters the water banks without occupying other land resources. Based on the original PRB technical principle, the system alters the water banks to cause the water to agree with river channel water quality purification and river-entering pollution control without affecting the function of the river channel. The system has remarkable effect to the water quality treatment of lake-entering rivers and urban pollutant holding rivers and the control of river surface source type pollution.

The invention discloses a comprehensive technology for the ecological restoration of low-pollution river water. The technology constructs the low-pollution river water environment comprehensive control engineering treating flowing water as a base, treating ecological restoration as a core and giving consideration to the landscape improvement through the integration and optimization of ecologic restoration combination techniques comprising a water power control technique, a polluted basement restoration technique, an underwater microtopography shaping technique, an aquatic plant recovery technique, an aquatic animal restoration technique, an aquatic life reinforcement technique, a water landscape construction technique and the like. The comprehensive technology has a good pollutant removal performance, and the TN, NH3-N and TP reductions reach 75.5%, 84.5% and 92.0% respectively.

The invention relates to a river pollution bottom sediment ecological remediation method. A bottom sediment stacking region is arranged at a river bank side, anti-seepage treatment is carried out on the bottom and the periphery of the bottom sediment stacking region, bottom sediments dug from a river and polluted by heave metals are added with a curing agent and are stacked in the bottom sediment stacking region; a separation region is arranged between the bottom sediment stacking region and a river water flow passage, and at least one separation wall is arranged in the separation region; an in-situ covering region is arranged in the dredged river water flow passage, first covering layers are laid at both the bottom of the separation region and the bottom of the in-situ covering region, a second covering layer and a third covering layer are also arranged on the first covering layer of the in-situ covering region, a filler of the first covering layer is a mixture of clay and the curing agent, the second covering layer is formed by sand grains, and the third covering layer is formed by pebbles and natural zeolite. According to the river pollution bottom sediment ecological remediation method disclosed by the invention, not only can the heavy metals in the bottom sediments be adsorbed, but also water can be accumulated, and a landscape function of the river is promoted; an in-situ remediation technology not only can prevent release of bottom sediment pollutants, but also can improve a water quality purification function of the river.

The invention relates to the field of fishing gears, in particular to an anti-ageing fishing net. The high-quality fishing net comprises the following production raw materials: epoxy resin, nitrile butadiene rubber, low-density polyethylene, a polypropylene compatilizer, holmium oxide, polyolefin, zinc oxide, a plasticizer and a wetting agent. According to the high-quality fishing net provided by the invention, the tensile strength of the fishing net can be improved through use of the polypropylene compatilizer and the holmium oxide in the materials; the quality of the fishing net in the using process is enhanced; meanwhile, the tensioning degree and the quality of the fishing net can be improved by adding the plasticizer and the wetting agent to the materials; and the pollution of the fishing net to river water in operation is reduced.

The invention discloses a water level collecting method based on image identification. The water level collecting method is characterized in that an image identification method is adopted for identifying a water surface in a photograph and a specific reference point in the photograph and combining a center point of the photograph for calculating the water level height of the water surface. The forming of the photograph is an optical imaging process, so that each point in the photograph is corresponding to an object one by one. According to the water level collecting method, a projection relationship of a camera, the photograph and the object is utilized to establish a projection triangle, so that the water level height of the water surface is calculated according to the information, namely, the height of the reference point, the horizontal distance between the reference point and the camera, the height of the camera, and the like. According to the water level collecting method, the level of river water in a river channel is calculated by utilizing one photograph, so that the calculation for the water level of the river channel is more convenient and the construction cost of a gauging station and a hydrometric station can be effectively reduced.

The invention relates to a fry fishing, temporary rearing and transportation technique, which comprises the followings steps: (1) fishing: a push net made from polyethylene net cloth equipped with 15 to 25 meshes is used for saury fry fishing; saury fry with strong constitution is chosen together with water; (2) temporary rearing: salt is added to the natural river water after precipitation treatment; the temporary rearing temperature ranges between 26 DEG C to 27 DEG C, and the temporary rearing time is less than two hours; (3) transportation: water with the same water quality with the temporary rearing water is used; proper transportation density is maintained; the temperature of transportation water is controlled; ice is used for indirect cooling by the self dissolution of ice plastic bags arranged in the plastic bags used for saury fry transportation; when the saury fry is transported to destination and before the saury fry is arranged in the water, the water temperature of the fish pond should be adjusted to a temperature close to the transportation water temperature; then the saury fry is stocked in the fish pond. The technique has the advantages that, successful saury fry fishing, temporary rearing and transportation are carried out; the transportation survival rate of the saury fry is high.

The preferred embodiment of the present invention is an inertial filtering device for filtering riverbed silt in a contained underwater environment comprising an enclosure to be placed underwater on a riverbed. The enclosure has at least one entrance opening located in the enclosure for allowing river water carrying riverbed silt to flow into the entrance opening. A chute for directing the river water upwards through the enclosure is also included in the enclosure. An exit opening is located at the top of the enclosure for exiting the river water. A hole is located in the chute for transiting particulate matter from the slit via gravity to the bottom of the enclosure while allowing the river water to proceed up the chute to the exit opening; and a suction device is connected to the bottom of the enclosure for suctioning out any matter collected in the bottom of the enclosure including PCBs or other pollutants.

The invention relates to a method for constructing a wetland type river channel. A natural gentle slope type retaining wall is constructed in a land directional area from the position above a normal water line to the top of a protection slope by using soil engineering materials, tree and shrub vegetation is planted, emergent aquatic plants are respectively planted in a bottomland area and a shallow water area of the river channel, floating-leaved plants and submerged plants are planted adjacent to the emergent aquatic plant area, and the transverse width of the planting area on each side is equal to or smaller than one fourth the width of the water area of the river channel. According to the method for constructing the wetland type river channel, the foundation with the novel soil engineering materials, the biological protection slope provided with the novel soil engineering materials as the foundation and covered by the tree and shrub vegetation, a bottomland wetland with emergent aquatic plant community as the main body and a bank zone with the floating-leaved plant and submerged plant communities as the main body are constructed respectively on the wetland type river channel, and a river channel biological system with the complete structure and function is formed. The method for constructing the wetland type river channel is capable of obviously improving river water quality, good river channel landscape can be created, and the living quality of city residents can be improved.

The invention relates to a benthonic animal-algae-aquatic plant-fish based river water ecological environment self-remediation method. The method is to overcome problems of river water ecological environment remediation methods at present, namely short effect duration, high costs and easy generation of secondary pollution. The method includes 1) evaluating the degree of pollution of a river, 2) planting reed and seeding algae, 3) throwing in plankton and benthic mollusks, 4) planting submerged plants, 5) throwing in shrimps, herbivorous fishes, omnivore fishes and filter-feeding fishes, 6) throwing in carnivorous fishes, and 7) harvesting the reed and the submerged plants before the reed and the submerged plants die, catching the benthic mollusks and the shrimps, and catching the fishes after two years. The method is long in effect duration, low in cost and free of secondary pollution and is applied for the field of river water pollution remediation.

The invention provides riverway water quality purification and ecosystem restoration adjustable wetland technology, which comprises that: a rubber dam with adjustable height is arranged in a riverway; potamogeton plants are planted at the upstream of the rubber dam of the riverway to form artificial wetland; the planting density of the potamogeton plants is between 20 and 30 clusters / m, and a cluster is between 3 and 4 plants; the retention and purification time of river water in the artificial wetland is adjusted by adjusting the height of the rubber dam, the height of the rubber dam is improved in normal and dry seasons to store water to make the water level at the upstream of the rubber dam of the riverway improved, and the adjusting height of the rubber dam is determined by the COD concentration of the river water at the inlet of the artificial wetland and the temperature of the river water. By planting the potamogeton plants in the riverway to form the wetland, instead of lifting the water onto land to construct an artificial wetland, the technology can more directly and effectively restore the damaged riverway ecosystem, improve the water quality of polluted river water, and can ensure normal flood discharge of the riverway in flood season.

A bridge type river and tide water-power and wind-power combined power generation corridor is composed of a full-bridge type river water-power and wind-power combined power generation corridor, a shore bridge type river water-power and wind-power combined power generation corridor and a bridge type tide water-power and wind-power combined power generation corridor which are respectively a combiner of a tree-shaped wind power generation device (1) built on a bridge plate and a tree-shaped water power generation device built below the bridge plate. In order to effectively utilize the abundant water power resources and the wind power resources in China, the bridge type river water power, tide water power and wind power combined power generation technology is provided, the bridge type river water power, tide water power and wind power combined power generation corridor is built by combining the river water power with tide water power and wind power so that natural energy can be effectively utilized for power generation, more electric energy is provided for people, and the degree of dependence on underground resources such as petroleum and coal is decreased.

The invention discloses a full-section water wetland purification system suitable for a normal water level of a river. The system comprises four parts, namely an overflow weir, a water distribution dike, a wetland for purifying water and a main flood period overflowing river. In low water seasons and the normal water level, all the water from the upstream flows through the wetland, thus the system can play a role in purifying the water; and at a flood period, the water level exceeds the overflow weir, the water flows through all sections, a narrow trapezoidal diversion port constructed in the system plays roles of water bundling and damming during the flood, the resistance is higher if the flood is greater, and more flood is compelled to flow to the wider and tendency-along flood discharge trunk river so as to reduce the flood flow of the wetland on the premise of not obstructing the flood discharge capacity and effectively protect the wetland. Moreover, according to the specific terrain of the river, structure forms of the wetland purification system can be connected in series so that the river water can be subjected to multistage purification. The construction method can be used for effectively purifying the water.

The invention relates to a method for recovering the wetland of hurt lake, with plant biological theory, ecological theory, etc, wherein the invention can increase the lives of wetland system, and recover the natural wetland ecological system, to realize the self-maintenance function of natural wetland group. Therefore, via the metabolism, physical and chemical functions of wetland plant and soil, the organic and inorganic can be stop at the wetland system, while the harmful one is decomposed into innocuous one, to purify the water. The invention has low cost, and high purifying efficiency.