3577 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 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.

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 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 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 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 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.

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.