246 results about "River pollution" 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 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 relates to a river supervision method, in particular to a method for diagnosing river pollution in real time. A river pollution diagnosis platform, a pollution degree evaluation module, a pollution reason diagnosis module, a pollution discharge scheme optimization module, a computational model management module and a database management module are adopted in the method. The method is characterized by executing the following steps when a pollution diagnosis project is completed: a, starting the river pollution diagnosis platform; b, setting basic parameters; c, performing river pollution degree evaluation; d, performing river pollution reason diagnosis; e, performing pollution discharge scheme optimization of a pollution enterprise; and f, outputting results. Equipment for implementing the method comprises a remote terminal consisting of a flow meter, a global positioning system (GPS) chip, a solubility detector and a singlechip. By means of method, real-time diagnosis of river pollution degree and pollution reasons is realized, an optimized pollution discharge scheme of the pollution enterprises along the river can be generated after a water quality improvement target or a pollution degree lowering target is input, real-time river pollution condition supervision of an environmental protection department is facilitated, river pollution governance is implemented according to the cases, and emission reduction planning is scientifically performed.

The invention relates to a method for preparing straw dairy manure organic fertilizer, comprising the steps of mixing a certain amount of straw powder or rice chaff, and the like, with swamp liquid; preparing into swamp liquid straw mixture with proper water content; evenly mixing the prepared swamp liquid straw mixture, the dairy manure with proper water content and zymogeneous bacteria agent; sequentially firstly fermenting, periodically piling, secondly fermenting, periodically piling, dehydrating, and stopping fermenting; and processing, packing or finish machining to prepare the organic fertilizer. The method harmlessly processes the swamp liquid and prepares the organic fertilizer therewith, not only solves the river pollution problem caused by randomly discharging the swamp liquid, but also can use the organic fertilizer for crops.

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 discloses an assembled emergency water purification soft dam and a method for purifying a minitype river course by using a water purification soft dam. The water purification soft dam is composed of a dam foundation, a main dam body, a barrier and a supporting frame, wherein the main dam body is divided into two ore more than two independent water purification units by one or a plurality of partitions along the river cross section; and each region is composed of a downstream unit, a horizontal unit and an upstream unit along the water flow direction. The river water filtration and back flushing of the soft dam are carried out synchronously, and the back flushing wastewater is independently treated in a different position. The soft dam is easy to assemble and disassemble, has the characteristics of recyclable materials, small habitat fragmentation influence and the like, can purify polluted river water, and is suitable for the fields of river pollution treatment and ecological environment protection during minitype river course partial building works.

The Invention discloses an ecological remediation method for controlling sulphur pollution in black and odorous sludge of rivers. Firstly, the sludge from pollution layer of the rivers will be dredged and stacked on the banksides with slope protection built along the outer edge of the sludge storage site; then innocent pretreatment will be conducted for the sludge. Specific steps comprise solarization and ploughing, and mixed ameliorant of certain proportion will be added for modification between first solarization and intermittent ploughing. Then, large emergent aquatic plants will be planted on the stacked sludge after pretreatment. The technical method provided by the Invention may control the release of acid-volatile sulfide in the contaminated sludge on one hand and reduce concentration of volatile organic sulfide in the waters on the other hand. With simple technical process and strong operable technology, the Invention meets the current requirements for controlling sulphur pollution in black and odorous sludge of rivers in China and facilitates realizing the goal of long-term control of sulphur pollution in the deposit of the waters.

The invention discloses a processing system and processing technology for removing river pollution bottom silt in a central urban area. The processing system comprises a multi-functional desilting vessel, a silt storage and transportation vessel and a silt dehydrating and drying vessel, wherein the multi-functional desilting vessel, the silt storage and transportation vessel and the silt dehydrating and drying vessel are communicated through pipelines. The multi-functional desilting vessel comprises a machine body, wheel-type supporting legs, a coarse garbage collection tool / reamer tool arranged at one end of the machine body and a first hydraulic system used for driving the coarse garbage collection tool / reamer tool. The silt storage and transportation vessel comprises a storage and transportation vessel body, positioning piles and a silt cabin, wherein a plurality of stirrers are further arranged in the silt cabin, the silt cabin is connected to the silt dehydrating and drying vessel through a pipeline. The silt dehydrating and drying vessel comprises a dehydrating and drying vessel body, positioning piles, a second hydraulic system, a stirring cabin, a chemical feed device and a drying device. According to the processing technology, a mobile processing station is adopted, all the devices are arranged aboard for operation, and therefore land resources are not occupied. Moreover, a processing method is simple, a processing period is short, the silt processing is thorough, and operability is high.

The invention relates to a tracing method for river sudden water pollution events. The tracing river is abstracted into a two-dimensional river channel; assuming that the shape of the two-dimensionalriver channel is regular, according to the technical scheme, data such as the degradation coefficient of river pollutants, the average speed of transverse and longitudinal water flow and the transverse and longitudinal diffusion coefficients of the pollutants in a water body are fully considered; diffusion simulation of pollutant emission is carried out on an appointed river area; calculation isconducted according to an observation value obtained through fixed-point monitoring and a calculation value in actual diffusion, quantitative solution is conducted on the number, the discharge position and the discharge intensity of pollutant source points through the harmony search algorithm fused with the local search, and finally the tracing method for the river sudden water pollution event isdetermined. The method has the characteristics of openness, flexibility, low calculation complexity and the like.

The invention relates to an automatic dehydrating dredge boat for riverway sludge and an application method of the dredge boat and aims to solve the technical problems that the existing similar dredge boats are single in function and inconvenient in sludge processing. The dredge boat comprises a boat body and a dredge machine and is characterized by further comprising a slope oscillating separator, a filter-press sludge-water separator and supporting facility which are disposed on the upper layer of the boat body, and a reagent water distribution cabin and a slurry cabin which are disposed on the lower layer of the boat body. A water pump for conveying reagent in the reagent water distribution cabin to the feed inlet of the slope oscillating separator is disposed in the boat body. The slurry cabin is located on the lower portion of the filter-press sludge-water separator and communicated with the bottom discharge outlet of the slope oscillating separator. A slurry pump and a conveyor which are used for conveying slurry to the filter-press sludge-water separator is disposed in the boat body. The automatic dehydrating dredge boat has the advantages that multiple functions of dredging, decomposing and dehydrating are integrated, river pollution can be treated effectively, and the dredge boat is suitable for riverway dredging.

The invention discloses an intelligent monitoring and management system and method for river water pollution monitoring and early warning and belongs to the field of monitoring technologies. With theintelligent monitoring and management system and method adopted, the problems of high manpower consumption, long monitoring period, and low river pollution control efficiency of existing river monitoring can be solved. According to the technical schemes of the invention, the system includes a network communication module, a water and rainfall information monitoring module, a water quality monitoring module, a gate pump monitoring module, a video monitoring module, a monitoring center, a river management module and a user terminal; the network communication module includes a GPRS network and anoptical fiber network; the water and rainfall information monitoring module includes a water and rainfall information monitoring device and a water and rainfall information monitoring center station;the water quality monitoring module includes a water quality monitoring station and a first server; the gate pump monitoring module, the river management module and the user terminal are all connected with the monitoring center; and the video monitoring module includes a video collection device and a second server. With the intelligent monitoring and management system and method for river water pollution monitoring and early warning adopted, river water pollution can be monitored in real time, and the efficiency of river water pollution control can be improved.

The invention discloses a treatment method of river polluted bed mud, comprising: adding oxidant into a polluted river to ensure that the bed mud on the surface layer is in the oxidation state; and preferably, adding water-solubility calcium salt and ferric salt. The invention ensures that the whole self-cleaning process of the river is in the aerobic state all the time by improving the oxidation reduction property of the polluted bed mud, thus creating conditions for aerobic microorganisms, amplifying bed mud aerobic microorganisms, and leading the aerobic microorganisms to digest organic pollutants; and in addition, the organic pollutants are completely oxidized and degraded into complete oxides such as CO2, H2O, NO2, SO4<-2> and the like, blackening and odor-causing substances, such as H2S, methyl mercaptan, FeS and the like produced during the anaerobic degradation of organic matters can be quickly oxidized, and the black and odor degree of water body can be effectively improved and remitted. Meanwhile, the calcium salt, the ferric salt and phosphorus-deposited nutritive salt are simultaneously added to lower river pollution degree and eutrophy level. The method of the invention has simple operation and strong selective pertinence, can treat in situ, almost does not damage the ecological balance of the original river and has favorable treatment effect.

The invention discloses a road sewage outlet anti-blocking device, which comprises a ground and a walkway. A rainwater well communicating withthe external space is arranged between the walkway and the ground, two support blocks are fixed between the left end wall and the right end wall of the rainwater well, the rainwater well is internally provided with a well cover, the ground is internallyprovided with anaccommodating mechanismcapable of accommodating garbage which blocks a bottom cover, the walkway is internally provided with anauxiliary mechanism capable of driving the well cover and the accommodating mechanism to complete transmission, an ejector mechanism used for automatically unblocking the well cover when the well cover is blocked is arranged inthe right end wall of a water falling pipeline, and a driving mechanism used for controlling rotation of a moving shaft is arranged in the left end wall of thewater falling pipeline. When the rainwater well is blocked by fallen leaves or plastic bags and rainwater cannot fall down, the device can automatically remove blocking objects to ensure smoothness of the rainwater well, the garbage which seriously blocksthe rainwater well can be collected, and the blocking objects are prevented from entering the rainwater well,flowing into a river,and causing river pollution.

The invention discloses a maturity process and a packaged technology for purifying water in a lake-river-mouth on-scale floating plant cultivation project. The main body comprises an outside protective cloth water barricading, a floating blanket type wave absorption zone, a floating plant purification area, an inboard water distribution barricading, an aeration deodorization reoxygenation zone and a submerged plant purification area. By the outside protected water distribution barricading and the floating blanket type wave absorption zone, boundaries of a project area are controlled, the water flow exchange between the water body in the project area and the lake surface is obstructed and storms is resisted; by the outside protected water distribution barricading and the inboard water distribution barricading, the inflow and outflow of the water of the project area are controlled, thereby even water distribution and uniform water power residence time are achieved; the main process unit for water purification is formed through cultivating floating plants on scale on large cage carriers with the biserial emplacement and the elastic mooring at the bottom of the lake; through deodorization and reoxygenation in the aeration zone, and oxygenation and purification in the submerged plant purification area, the odor in the water is eliminated and the water is resumed to the oxygenation state, the effects of the floating plant purification area to the downstream water body and surrounding environment are eliminated. The maturity process and the packaged technology can be used to control the related pollution among water bodies including rivers flowing into lakes pollution control, water flow flowing out of lakes pollution control, water purification of lake coastwise sewage discharge points, water purification of lake coastwise intake points (water resources area) and others, and have the remarkable efficacies of eliminating alga, nitrogen, phosphorus.

The invention discloses an ecological water retaining dam. The whole dam body comprises three parts, i.e. an earth-rock dam body, a timber pile reinforcing structure and an isolating bamboo raft, wherein the earth-rock dam body is in a dual-layer structure; the inner layer is filled with bagged clay; the outer layer is filled with bagged gravel; the timber pile reinforcing structure is used for ensuring the safety and the stability of the dam body; and the isolating bamboo raft is used for reinforcing and isolating turbulence. Due to the adoption of natural material, the ecological water retaining dam disclosed by the invention has the advantages of stable structure, convenience in dismantlement and construction, and having the function of intercepting a water body, water conservation function for controlling the water level, and certain functions of purifying the water quality and repairing ecology as well as a landscape effect; and the ecological water retaining dam is suitable for construction of temporary water dams, short-term use of water dams or water retaining dams for middle and small creeks in river network regions and belongs to the fields of river pollution treatment and environment protection.

The invention relates to a method for determining a population exposure area according to environmental health risk assessment on river pollution specific pollutants and application of the method, and belongs to the field of environmental science and health risk assessment. According to the method disclosed by the invention, by comprehensively considering a specific pollutant screening result, a pollution status simulation result of target specific pollutants and a pollution cause analysis result, pollution status simulation and exposure area determination are performed by adopting spatial analysis software, and an area range that the potential environmental health risk of an exposed population is high is artificially determined. According to the method disclosed by the invention, a technical support can be provided for the environmental health risk assessment and management on river pollution.

The invention provides a basin grey water footprint evaluation method and a water environment treatment strategy making method. The grey water footprint evaluation method comprises the steps: carryingout the evaluation unit division of a to-be-evaluated basin according to the basic data of the basin; accounting and analyzing the positions of various pollution sources and the river pollution loadprocess in each evaluation unit to obtain the load discharge of various pollution sources; establishing a grey water footprint accounting model for the point source and non-point source pollution discharge river-entering loads of each evaluation unit according to different pollution discharge modes and a pollutant migration reduction equation; determining grey water footprint accounting parametersaccording to the upstream and downstream relationship of the drainage basin and the water quality target difference; and according to the grey water footprint accounting parameters and the grey waterfootprint accounting model, calculating the quantity of various grey water footprints of the to-be-evaluated unit. The basin grey water footprint evaluation method provided by the invention effectively represents the water environment influence of hourly space scale pollution load discharge, and supports refined and scientific water environment management application.

The invention discloses an unpowered urban inland river pollution control system and an unpowered urban inland river pollution control method and relates to an urban inland river pollution control system and an urban inland river pollution control method. The unpowered urban inland river pollution control system and the unpowered urban inland river pollution control method can reduce the operation cost in an inland river control process. The unpowered urban inland river pollution control system consists of an anaerobic biological filter urban inland river dam treatment system and an aerobic ecological riverway treatment system, wherein the anaerobic biological filter urban inland river dam treatment system is built along a river; and the aerobic ecological riverway treatment system consists an aerobic ecological pebble river bed arranged at the bottom of the riverway and a drop flap gate system arranged on the downstream of the river and stopping river flow along the width direction of the river. The unpowered urban inland river pollution control method is as follows: sewage is treated in the dam anaerobic biological filter and controlled by an inland drop aerating aerobic ecological riverway alternately to be purified, and the appearance of the water is improved and the water is purified by the anaerobic and aerobic ecological treatment. The system and the method can be used in the field of urban inland river pollution control.

The invention discloses an underwater self-suction injection stream flow characteristic integrated test device system which comprises a self-suction nozzle device and a submerging device which are made of organic glass. The self-suction nozzle device is at the upper part of the integrated test device system and is formed by a self-suction nozzle and a gas turbine flow meter. The submerging device is at the lower part of the integrated test device system and is formed by a bearing water tank, a safety valve, a pressure meter, a target plate and a bracket, a pressure measuring cover plate, a water discharge valve and a gas exhaust valve. According to the integrated test device system, the gas and liquid phase flow characteristics in the self-suction nozzle can be observed and tested, the impact flow characteristics of two gas and liquid phase injection flows can be observed and tested, the impact performance is understood, the nozzle has a wide application prospect in the aspect of water environment protection, such as pneumatic sediment transportation by impinging jet, the improvement of water quality by jet aeration, and the main engineering fields have river governance, reservoir and pumping station dredging and river pollution control.

The invention is applicable to the technical field of river treatment, and provides garbage treatment equipment for river pollution treatment. The garbage treatment equipment comprises a ship body, wherein a rotary fishing mechanism is mounted at one end of the ship body through two symmetrically arranged connecting rods, a leaked water conveying mechanism is mounted between the two connecting rods, the head end of the leaked water conveying mechanism is located below the rotary fishing mechanism, a discharging plate is arranged at the tail end of the leaked water conveying mechanism and located at the upper end of a garbage treatment box, a water throwing mechanism is mounted in the garbage treatment box, the water throwing mechanism is mounted at the top of an inner barrel through a rotating assembly, a sewage opening is formed in the side wall of the garbage treatment box, a crushing mechanism and a compression pushing mechanism are sequentially arranged in the inner barrel from topto bottom, and the compression pushing mechanism is connected with a garbage can. According to the garbage treatment equipment, garbage floating on the surface of a river channel can be automaticallycollected and salvaged, the working efficiency is remarkably improved, the safety coefficient is increased, and the risk of falling into water is reduced.

The invention relates to a garbage interception dam for hydraulic river pollution control. The garbage interception dam comprises a dam body, adjusting mechanisms and an interception mechanism. The adjusting mechanisms are arranged in the middle of the dam body. The interception mechanism is mounted on the rear side face of the adjusting mechanisms. The total number of the adjusting mechanisms istwo. The two adjusting mechanisms are arranged in the middle of the dam body in bilateral symmetry. Each adjusting mechanism comprises an adjusting electric push rod. Adjusting grooves are formed in the middle of the dam body. According to the garbage interception dam, the problems that during manual fishing of river pollution, cost is high, the fishing quantity is low, when garbage is interceptedby the interaction dam, an interception net cannot adjust the height along with water level changes, the interception net is prone to being blocked, water drainage is difficult, even cracking is generated, when the interception net s cleaned, garbage at an interception opening is prone to directly flowing towards the downstream portion, and the interception net is difficult to clean can be solved; the function of intercepting garbage in a river can be achieved; and the garbage interception dam has the advantages that the interception quantity is large, the input cost is low, blocking is not prone to happening, the interception net is convenient to clean, and garbage at the interception opening cannot flow away during cleaning.

The invention provides a method and device for calculating the farmland surface source pollutant river pollution load. Through calculation of the pollutant load obtained from the equation and the runoff process (WEP-L), the pollutant river entering process along with runoff is described through a programming language (Fortran programming) with a physical mechanism, dynamism and stability of the calculation result of the farmland surface source pollutant river pollution load are achieved, and excessive interference of human factors is removed; According to the method, simulation accuracy of the calculation result is improved, and the stable prediction function is achieved.

The invention discloses a repeated lifting type river water suspended matter adsorption device, which belongs to the technical field of river pollution treatment, and comprises a sedimentation adsorption mechanism and a floating suspension mechanism, the floating suspension mechanism comprises an adsorption ball, five sedimentation balls and a rope suspension clasp; the sedimentation balls are annularly and evenly distributed on the outer side of the floating suspension mechanism, a connecting ring is fixedly connected to the outer wall of each adsorption ball, each sedimentation ball comprises a net-shaped ball shell, and a filling and fixing ball bag is arranged in each net-shaped ball shell. The device can automatically and repeatedly settle and float in water, so that suspended solidsin the water surface, the water and a deep water body can be adsorbed and treated back and forth at a time; therefore, the treatment efficiency and the treatment effect are improved, heavy metal pollution remediation can be carried out on the water body while the suspended solids are adsorbed; in addition, the device is convenient to salvage, so that secondary pollution due to remaining sewage water can be effectively avoided.

The invention relates to a multi-stage water quality eco-purification system suitable for a shallow narrow mixed water river channel, which can effectively solve the problems of multi-stage water quality eco-purification and eco-remediation of the shallow narrow mixed water river channel. The system adopts a method comprising the following steps: arranging an overflow dam formed by building rocks in a main river channel; arranging a biological solid settling pool in front of the overflow dam, arranging a semi-submersible artificial ecologic filter bed and an in-situ remediation module combination unit behind the overflow dam and in a sheer river bed, arranging an ecologic floating bed and an ecologic foundation in the in-situ remediation module combination unit in sequence to form a multi-stage eco-purification unit, arranging and fixing a plurality of multi-stage eco-purification units in the river channel along the river channel to form the multi-stage water quality eco-purification system. The ecologic foundation can adsorb pollutants in water, and provides a dwelling site for microbes; the microbes dwelling on the ecologic foundation can further remove pollutants in water. The system is scientific and reasonable, is suitable for intensifying and purifying ecological engineering of the shallow narrow mixed water river channel, and has an important meaning in river pollution prevention and ecologic remediation.

The invention relates to a method of constructing an ecological revetment for intensively intercepting and clearing non-point pollution based on organisms, which comprises the steps of investigating hydrologic conditions of a river, determining non-point pollution load and hydraulic retention time of a riparian zone in a unit length, analyzing characteristics of the non-point pollution along the river, screening a high-efficiency bacterium which can efficiently remove the non-point pollution or constructing gene engineering bacteria capable of removing nondegradable organic pollutants, constructing hollow hexahedral ecological revetment members, and growing plants in the members, thereby constructing the ecological revetment. Compared with the prior art, with the adoption of the method, the non-point pollution, particularly the nondegradable organic pollutants, can be removed effectively, the river pollution load can be decreased, potential ecological risks of the non-point pollution to a river ecosystem are reduced, and local raw materials are utilized to improve the environmental compatibility of the members, so that good habitat conditions are provided for the growth of microbial communities and vegetations at the riparian zone, and the mechanical stability of the riparian zone is improved.

The invention relates to the technical field of the river pollution assessment, and is a river pollution assessment method based on a SPARROW model. The method comprises the following steps: step one,determining a simulation sub-drainage area of a target river according to a topology relation of a target river network; step two, acquiring the least square method estimation model parameter; step three, determining and inputting the independent variable and the dependent variable of the river pollution source based on the least square method estimation model; step four, establishing a SPARROW model of a target river simulation sub-drainage area chemical oxygen demand; step five, checking a river water quality pollution load prediction model parameter; and step six, determining the water quality type. Through the method disclosed by the invention, the pollution source components and pollution load quantitative distribution in each sub-drainage area and each control unit in the target river drainage area can be obtained, thereby obtaining the macro influence on the drainage area water pollution status by different pollution constitute features in the target drainage area; the surfacewater pollution at inland drainage area at the arid region can be effectively assessed, and the surface water source at the target river drainage area can be effectively protected and scientifically managed.

The invention discloses a river water volume clustering and water quality evaluating method based on water-power, water quality and SOM. Firstly, collecting all data of a river and inputting the data to a water-power model and a water quality model to obtain water-power data of each node of the river and pollution concentration time sequence of each node; then inputting river stream flow data at each moment to a SOM nerve network to obtain a reasonably classified n*n modes, wherein the n*n modes are combined together to obtain a topological graph of the river stream flow; then according to the clustering results of flow, performing feature extraction on pollution concentration time sequence results of each node by means of the SOM nerve network to obtain a topological graph of each pollution source for river pollution distribution and obtaining the pollution mode classification of the pollution source in the one-dimensional river through the topological. By means of the method of the invention, the water volume and water quality of a one-dimensional river can be assessed and the results can be expressed visually.

The invention discloses a water purification floating bed breeding device and a water purification method, the water purification floating bed breeding device includes a floating bed, a metal rod and a breeding net cage, the floating bed is provided with a first fixing ring, a hook and a planting groove for planting plants; the metal rod is provided with a second fixing ring, the second fixing ring is connected with the first fixing ring through a detachably connection ring, the breeding net cage is used for breeding economic type filter feeding fishes, the breeding net cage is fixed on the metal rod by binding, and the breeding net cage is hooked on the hook. The water purification floating bed breeding device can not only control low flow river pollution, also can use river resources for breeding economic type fishes.

The invention relates to an unmanned plane which is used by river chiefs to monitor river water quality, and belongs to the technical field of intelligent unmanned plane application. In applications, low altitude cruising is carried out by the unmanned plane above a river channel, a camera in a optoelectronic pod below the unmanned plane is used for taking pictures of the water surface of the river channel continuously, and image information is acquired; the unmanned plane is used for sending the image information to a water quality information storing and processing center on the land via wireless communication; when suspected polluted water areas are found by river chiefs from the image information, commands are sent by the river chiefs to guide the unmanned plane to hover above the suspected polluted water areas; a hollow soft pipe is released by a launching and recovering device of the unmanned plane, a touch water body detection disc on the lower end of the hollow soft pipe is immersed in river water, a pH sensor, a water quality analyzer, and a water quality monitor arranged on the bottom surface of the touch water body detection disc are used for detecting water quality; collected data information is sent to the water quality information storing and processing center on the land via wireless communication; and measures used for treating river pollution are chose by the river chiefs based on the image information and the data information.

The invention provides a biological purification material and device, which can increase rapidly the dissolved-oxygen content with saturation radio more than 90% for long time in polluted water of city, boost inorganic process of oxygen-consumption deposition in riverbed bottom to eliminate pollution locally, accommodate ecological balance, avoid eutrophication of nitrogen and phosphor in water, and remove harmful toxic material, such as nitrite and sulfide. Wherein, the main purpose lains on improving removal rate of COD and BOD to recover self-purification and detoxification function of water body.