325 results about "Turbid water" patented technology

A dredging method and a dredging apparatus which can efficiently suck large quantities of sand and gravels deposited on the bottom of dams, rivers, harbors, etc., convey them with as much saved energy as possible, and can prevent diffusion of turbid water. To achieve these objects, the apparatus includes a case laid down into the water in communication with the atmosphere. A suction pipe having a suction portion at the lower end thereof is connected to this case. The apparatus further includes a drain pump for draining water in the case and forming a level difference between the water level in the case and the external water level A container is removably disposed at an intermediate portion of the suction pipe. The sand and gravels are sucked from the suction pipe into the container by the siphon principle due to the level difference between the external water level and the water level in the container, and the container is cut off and the sand and gravels are taken out when the container is full.

The invention discloses a dynamic simulation test method of a plastic supporting bearing used in automobile suspension and a testing machine. The testing machine is composed of a drive unit, a loading unit, a bed and an optional environmental simulation test auxiliary unit; a transmission shafting 5 in the drive unite is fixed in a work table 16 of the bed 17, the lower end of the transmission shafting 5 is linked with a torque sensor 4, the upper end of the transmission shafting is linked with a coupling 15 and a test shaft 14 is fixed in a groove of the transmission shafting, a bearing to be tested 13 is arranged on the transmission shafting; a frame 6 is fixed on the work table, a radial loading oil cylinder 7 is horizontally fixed on the frame, a sensor 8 is arranged on the head part of the radial loading oil cylinder 7 and abuts on a loading head 9 on the side of a loading block 12, an axial loading oil cylinder 10 is vertically fixed on the frame, a sensor 11 is arranged on the head part of the axial loading oil cylinder 10 and abuts on the loading block, the loading block is arranged on the bearing to be tested; a heating test or a turbid water test can be chosen for the work table or the coupling. During test, a variable frequency motor 1 is directly connected with a reduction gear 2 to drive a multi-link mechanism 3 and converts into swing of the test shaft and drives the tested bearing, and a computer monitors the whole test process and records data.

The invention relates to an underwater pipeline detector based on an underwater robot. The underwater pipeline detector comprises an overwater control device and an underwater detection device, wherein the overwater control device is connected with the underwater detection device through an umbilical cable; the underwater detection device is arranged on the underwater robot, and is used for detecting position and burial depth of a seabed pipeline; and the overwater control device is used for controlling operation of the underwater detection device. Compared with the prior art, the underwater pipeline detector solves the difficulty that the position and the burial depth of the pipeline cannot be detected by means of an acoustic wave pipeline instrument detection method, multi-beam side-scan sonar detection, magnetic detection, ROV camera shooting, diving photographing by a diver and the like in a deep water region and under a turbid condition. Through adopting the method of combining the overwater equipment with the underwater equipment, and regarding ROV as a carrier, the underwater pipeline detector enters the deep water region, carries out non-destructive detection by adopting an electromagnetic induction principle, and overcomes the pipeline detection difficulties of small pipe diameter, sludge and sand layer coverage and turbid water region.

The invention discloses an underwater detection device for a turbid water area. The underwater detection device comprises a flexible wall-attaching module, an underwater device box, an optical image acquisition equipment module, an illumination module, a retractable cable device and a display control module, wherein the flexible wall-attaching module is connected with a front flange in the underwater device box through fastening bolts, and sealing is realized through an O-shaped sealing ring; the illumination module and a camera device are integrated and mounted on a rear cover of the underwater device box; signal wires of the illumination module and the camera device are led out, coiled on the retractable cable device and connected with the display control module, thereby being used for supplying power to the camera device and the illumination device and transmitting signals and data. A front flexible membrane is utilized for observing the underwater area with low visibility in a large range; high-definition image information is acquired by a high-definition camera and the luminance-adjustable illumination device. The device is simple to operate and convenient to carry, and desired high-definition video images of an invisible detection area can be obtained.

The invention relates to a preparation method of casting water glass; the preparation method is characterized in that: the material is heated to 158-169 DEG C, and the temperature is kept for 1-4 hours, and then the temperature is raised to 179-212 DEG C for 4-10 hours, and the pressure is released to 0.3MPa, and then the material is driven to a cooling tank by excess pressure, 50-70 DEG C is cooled, and non-reactive material is separated out and removed by solid-liquid separation equipment, and the non-reactive material can be used continuously in the follow-up production, supernatant liquidis sucked in a water glass raw material storage tank, plain sedimentation is carried out for 48-72 hours to obtain transparent liquid water glass, and a bottom port is used for draining turbid water glass; the mass percentage of SiO2, Na2O and K2O is adjusted by one or all of industrial solid sodium hydroxide and industrial solid potassium hydroxide, and 0.5-21 percent of modifiers is added by mass percentage, wherein the modifiers are one or a plurality of sorbitol, xylitol, mannite and maltitol; the raw material is added in a stirring tank to obtain the casting water glass including 23-31 percent of SiO2, 0.5-28 percent of K2O, 9-21 percent of Na2O, 0.5-21 percent of modifiers and remaining water by mass percentage.

The invention relates to a portable on-line three-dimensional coordinate water quality detection system for turbid water areas. The system comprises an electric ship (1), a device platform (2) and an on-line water body water quality detection device and is characterized in that the on-line water body water quality detection device comprises a water quality detection sensor (6), a foldable device (5), a combined cable, a data storage device (19), a wireless signal transmission device and an integrated and visualized system of a ground control interface, wherein the water quality detection sensor (6) is connected with the lower end of a lifting traction device by the foldable device (5); the input end of the water quality detection sensor (6) is connected with an embedded control system (9) via a cable in the combined cable; the embedded control system (9) is connected with a direct-current power supply (18); and the output end of the water quality detection sensor (6) is respectively connected with the data storage device (19) and a wireless signal transmission device by other cables in the combined cable. By the adoption of the portable on-line three-dimensional coordinate water quality detection system, the complete intellectualization of system control and three-dimensional water quality detection can be realized, and the portable on-line three-dimensional coordinate water quality detection system can be widely applied to fields, such as centers for disease control, aquaculture industry, the environment monitoring of rivers, lakes, ocean water bodies and the like.

The invention provides a moringa oleifera water purifying agent. The water purifying agent is characterized in that: the water purifying agent is prepared from components of, by mass: 90% to 100% of moringa oleifera extract, and 0 to 10% of a chemical water purifying agent. According to the invention, moringa oleifera oil extraction residuals are adopted; moringa oleifera effective components areextracted; and a complete and comprehensive utilization of moringa oleifera seeds is realized. The moringa oleifera water purifying agent is a pure plant extract. When the moringa oleifera water purifying agent is used for purifying water, no toxicity or harm is brought in. Therefore, harms to human and secondary pollutions to the environment brought by chemical water purifying agents can be solved from the source. The moringa oleifera water purifying agent is suitable for rural water purification. With the water purifying agent, a problem of drinking-water safety of rural population can be solved. The water purifying agent is applied in the purifications of turbid waters such as river water, lake water and rainwater, and brings better purification effects than chemical water purifying agents. The moringa oleifera water purifying agent can be blended with chemical water purifying agents for purifying urban sewage. Therefore, adoption amount of chemical water purifying agents is greatly reduced.

The invention relates to an annular shield machine which comprises a shield housing, a duct piece traction mechanism and a turbid water delivery system, wherein the shield housing comprises an outer housing, an inner housing and a small shield housing; the inner housing, the small shield housing and the outer housing form an annular cavity; small cutting heads are distributed along the circumferential direction of the annular cavity; a primary cutting head is arranged in the small shield housing; the primary cutting head is communicated with the inner housing; and a shield jack is arranged behind the small cutting heads. The invention also provides a tunnel construction method. The annular shield machine disclosed by the invention has the characteristics of safety and reliability, simplicity and convenience, high efficiency, economy, environment friendliness and the like. By using the novel tunnel construction method disclosed by the invention, excavation can be carried out at any tunnel lining part in any shape, then earth and sand are excavated in the constructed tunnel lining, and finally the tunneling is completed.

The invention discloses a method for conducting inland water body atmospheric correction based on oxygen and water-vapor absorption wavebands, and relates to the technical field of remote sensing. The method comprises the steps of processing hyperspectral remote sensing image data of an inland water body, extracting a clean water body image element (dark image element), conducting the rayleigh scattering removal and atmospheric correction on the extracted dark image element, utilizing the oxygen and water-vapor absorption wavebands for combinatorially computing atmospheric correction factors on the corrected image element, conducting aerosol scattering of extrapolation full-wave bands, and utilizing the calculated aerosol scattering value for conducting the atmospheric correction on a whole-scene image. According to the method, the characteristic that the water body is low in reflectivity at the oxygen and water-vapor absorption wavebands is utilized, the water body dark image element is selected, the aerosol scattering is calculated, the phenomenon that due to the fact that in the inland water body atmospheric correction, the water body is high in turbidity, overcorrection is caused is avoided, the precision of the inland turbid water body atmospheric correction is improved, and the technical support is provided for improving the precision of remote sensing retrieval.

The invention relates to an oral cavity cleaning and nursing machine which is characterized by comprising a water feeding chamber, a water pump, an electric toothbrush and a turbid water storing chamber, wherein the bottom of the water feeding chamber is provided with a water outlet; a water feeding end of the water pump is connected with a water outlet of the water feeding chamber through a water pipe or a channel; the electric toothbrush is internally provided with a water feeding channel and a water sucking channel, one end of the water feeding channel is provided with a water feeding port, the other end of the water feeding channel is connected with a water outlet end of the water pump, one end of the water sucking channel is provided with a water sucking port, and the other end of the water sucking channel is provided with a water outlet port; a turbid water inlet of the turbid water storing chamber is connected with the water outlet port of the water sucking channel of the electric toothbrush through a water pipe; an extract opening is positioned at the top of the turbid water storing chamber and provided with a liquid level valve; an air inlet of the air pressure cavity is connected with the extract opening of the turbid water storing chamber through a pipeline or a channel; an air inlet end of a fan is connected with an air outlet of the air pressure cavity through a pipeline or a channel, and an air outlet end of the fan is communicated with the exterior air. The invention integrates multiple technologies and has functions of suction, water feeding, electric tooth brushing, brushing illumination / oral cavity examination, and the like.

The invention provides a muddy water filter automatic slag discharger, belonging to the field of water supply engineering. The slag discharger comprises a reducing machine, a reducing machine rotation shaft, a rotation scraping bar, a long fiber brush, a filter slag-removal plate, a filter net, a slag collecting and discharging channel, a pure water outlet, a pure water chamber, a bracket, a water supply pipe, a muddy water chamber, a slag discharging hole, a slag discharging pipe, a pollution discharging electromagnetic valve, an electromagnetic valve switch signal emitter and the like. After the muddy water containing solid articles flows to the filter net from the inlet of the water supply pipe, the solid articles thereof are intercepted by the filter net, while the residues on the filter net are brushed to the slag collecting and discharging channel by the rotation scraping bar and the long fiber brush and washed away by the discharge water automatically, thus playing the function of filtrating the muddy water and automatically discharging the slag.

The applicant provides a strain of Bacillus tequilensis ZSGD5, with accession number of the deposit of CCTCC NO.: M 2014004, deposited at the China Center for Type Culture Collection, Wuhan University, Wuhan City, China on Jan. 6, 2014. The applicant also provides a compound microecological Bacillus agent. The compound microbial agent comprises the following bacterial species: Bacillus tequilensis, Type I Bacillus subtilis, Type II Bacillus subtilis, Type I Bacillus licheniformis, Type II Bacillus licheniformis, Bacillus pumilus, and Bacillus megaterium. The Bacillus tequilensis provided in the present invention has an efficient water bottom cleaning capability, and can rapidly decompose and decrease the sludge at the bottom of a pond and effectively improve environmental waters for such phenomena as black water, and turbid water, so the Bacillus tequilensis can be used for water environment treatment in aquaculture and for urban wastewater treatment.

The invention discloses an atmospheric correction method for multi-spectral data of an inland turbid water body based on a green light wave band and relates to the technical field of remote sensing. The atmospheric correction method comprises the following steps: (A) preprocessing multi-spectral image data of an inland water body; (B) preprocessing a moderate-resolution imaging spectroradiometer (MODIS) L1B image which is synchronously acquired; (C) extracting clean pixels (dark pixels) from the preprocessed image data; (D) calculating an atmospheric correction factor through short-wave infrared (SWIR) band combination for MODIS data clean pixels; (E) calculating the water-leaving reflectivity of a clean water body green light wave band which is matched with a multi-spectral wave band according to an analog database and a great number of experiment observation data; (F) calculating the aerosol scattering of each wave band according to the atmospheric correction factor which is calculated in the step (D) and the water-leaving reflectivity which is calculated in the step (E); and (G) completing atmospheric correction of the multi-spectral image data according to the aerosol scattering which is calculated in the step (F). According to the method, the atmospheric correction accuracy of multi-spectral remote sensing data of the inland turbid water body is improved.

To provide a cleaning apparatus suitable for removing clogging substances trapped in a surface layer of a sand filtration layer. A cleaning apparatus equipped with drive wheels serving as a driving device configured to move across a surface of a sand filtration layer. A pump and a jet nozzle are provided as an agitation device configured to agitate a surface layer portion of the sand filtration layer only at a desired depth, and which blows the clogging substances upward into the seawater in a turbid water intake pit together with a filtration sand. A perforated pipe for suctioning turbid water, a pump, an ejector, and a discharge pipe for dilute turbid water are provided as a suction and discharge device configured to suction turbid water blown upward into seawater in the water intake pit by the agitation device, and discharge it to outside of the turbid water intake pit. Prevents clogging by performing a timely cleaning of the sand filtration layer, thereby making it possible to maintain a high-speed seawater infiltration rate for seawater. Impact on the surrounding environment is reduced, because the apparatus suctions turbid water containing clogging substances which is blown upward into the turbid water intake pit, and discharges it to outside of the system.

The invention provides an MODIS (moderate resolution imaging spectroradiometer) satellite synchronous monitoring method for cyanobacterial bloom and aquatic vegetation in eutrophic lakes. The MODIS satellite synchronous monitoring method includes combining spectral characteristics of the cyanobacterial bloom, the submerged vegetation and floating-leaf / emergent vegetation with one another on the basis of field measured spectral data and creating alga and grass indexes (AGI); combining turbid water indexes (TWI) and floating alga indexes (FAI) with one another and determining basic classification processes; determining classification thresholds for the AGI, the TWI and the FAI on the basis of historically acquired MODIS satellite data; ultimately completely constructing classification decision trees and synchronously monitoring the cyanobacterial bloom, the submerged vegetation and the floating-leaf / emergent vegetation on MODIS satellite images. Alga-containing water and grass-containing water can be separated from each other by the aid of the alga and grass indexes (AGI). High-turbidity water can be identified by the aid of the turbid water indexes (TWI), and the submerged vegetation and the floating-leaf / emergent vegetation can be differentiated from each other by the aid of the floating alga indexes (FAI). The MODIS satellite synchronous monitoring method has the advantage that interannual and inter-monthly variation laws and spatial distribution of the cyanobacterial bloom, the submerged vegetation and the floating-leaf / emergent vegetation in the eutrophic lakes can be accurately acquired on the basis of the MODIS satellite synchronous monitoring method.

A total water desalination system is disclosed that includes a centrifugal separator, a feed-water device controlled by a relative humidity sensor, an air pump, an evaporator core, an air dryer, a non-particulate coalescent air filter, and an air flow / brine gravity separating tank. The evaporator core typically contains multiple conical processing chambers and introduces a physical dynamic that increases the surface area of the water, using low-level thermal energy to vaporize micron-size water particles into a gaseous state, suitable for reconstitution into desalinated (or lower salt content) water. The evaporator core operation principles are based on creating a highly dynamic environment that separates impurities from sea, brackish, river, or turbid water; evaporating the water into a residual clean vapor, and returning the vapor to water composition with high efficiency.

The invention discloses a geometric parameter measuring method for a vertical shaft. A reference rope method is adopted, namely an underground instrument and a reference rope are arranged on a bracket at a wellhead; the underground instrument is connected with a built-in cable winch in an instrument vehicle and a computer interface of a ground instrument and used for recording data; the reference rope tied with a heavy hammer is connected with a built-in reference rope winch in the instrument vehicle and used for adjusting lifting of the reference rope winch; and circuits are coordinated. The method comprises the following steps of: putting the underground instrument into the well at a distance of 50 centimeters from a logging instrument, lowering the reference rope vertically, obtaining the measurement result of the azimuth of the reference rope when the size of an obstacle is greater than 1 / 2 of the wavelength of sound wave and the sound wave is reflected, and further determining the actually measured relative azimuth; and measuring an auxiliary sound velocity, namely fixing a sound velocity by using the distance between the reference rope and the underground instrument, and calculating the distance of the actually measured azimuth. Deviation of signal initial time judgment is eliminated by introducing a logarithmic amplifying circuit in the measurement circuits, signal fluctuation caused by power frequency interference is eliminated by adopting a power frequency filter, the measurement precision of the shaft diameter reaches 1 millimeter, and the effective measurement distance in turbid water reaches 3.0 meters. The method is suitable for the water-containing vertical shaft with the depth of 0 to 1,000 meters and the diameter of 1 to 3 meters.

The invention discloses a remote sensing retrieval method for a concentration of particulate organic carbon of a turbid water body, belonging to the field of remote sensing retrieval of water quality parameters. The remote sensing retrieval method comprises the following steps: acquiring the concentration of water body suspended matters on a surface layer of a research region, the concentration of particulate organic carbon (POC) and data of particle size distribution (PSD) of the suspended matters; acquiring field remote sensing reflectivity and a research region remote sensing image; and processing field remote sensing spectroscopic data so as to acquire a sensitive band of the remote sensing retrieval, establishing a statistical relation among the concentration of particulate organic carbon, the concentration of the suspended matters and the particle size distribution of particulate matters, a remote sensing retrieval model of the concentration of the suspended matters and a remote sensing retrieval model of the particle size distribution, and combining the statistical relation and the two models so as to establish a remote sensing retrieval method for particulate organic carbon based on the concentration and particle size distribution of the suspended matters. According to the remote sensing retrieval method for the concentration of particulate organic carbon of the turbid water body, the physical base of the remote sensing retrieval model can be directly reflected, and the precision of remote sensing retrieval can be improved.

The invention discloses a microbiological preparation for efficiently treating municipal lake water pollution. The microbiological preparation is prepared from nitrosospira, rhodospirillum, bacillus subtilis natto, kitasatospora phosalacinea and lactobcillus in a volume ratio of 0-10 to 5-15 to 5-15 to 5-15 to 5-15. The microorganism selected and cultured by the invention has the capability of being rapidly multiplied and developed into a dominant microflora under the municipal lake water environment; and each strain can independently and cooperatively decompose eutrophic ingredients in the municipal lake water and can make certain eutrophic ingredients which are difficult to decompose in a normal state easy to decompose. The microbiological preparation has the advantages of purifying the water quality well, improving the substrate, optimizing the biological environment, saving the biological environment from damage, having obvious effect on water raising, water retention, water color stabilization, treatment of turbid water, water concentrate, red water, black water, bottom odourization and algae aging and regulation and stabilization of pH value of the water body and making the lake water clear and odorless rapidly, along with simple using method, low cost, obvious effect, no secondary pollution.

An integrated system for diving operations for use in turbid water by a remote operator comprising a surface console station that supports the receipt of tethered command and control of system components and display for received real-time video via a communications channel; a remote wearable information processing unit tethered to the surface console station and having integrated controls; a wearable human interface system connected to the remote wearable information processing unit and including a video display and two-way audio system; a viewing enhancing device tethered to the remote wearable information processing unit and the surface console station, including an image capture device; and a fluid clarification unit coupled to the viewing enhanced apparatus. The apparatus may be warn and operated by a diver, mounted on a remotely operated vehicle or manipulated remotely while mounted on the end of a pole and may include an array of viewing enhancing devices.

The invention discloses a novel high-efficiency environment-friendly coagulating agent used for treating turbid water or polluted water. The coagulating agent comprises the components of, by weight: 10-30% of bauxite, 20-40% of fly ash, 20-60% of lime, 3-8% of zeolite, 1-5% of citric acid, and 1-5% of cement. The invention also relates to the application of the high-efficiency environment-friendly coagulating agent in treating turbid water or polluted water. The coagulating agent provided by the invention is economical and environment-friendly, and has the advantages of rich component source and low cost. An agent dose is low, wherein the dose is 3-5% of the dry weight of sludge in the turbid water or polluted water. The influence on water body pH value is low, such that the original property of the sludge in the water is not changed. Part of active heavy metal is solidified, such that activity of sludge in water can be increased, and water body self-cleaning capacity can be greatly improved. Multiple functions such as absorption, condensation, chelation, curing, ion exchange, and the like are integrated. A treatment effect is good. Water body after flocculation and sedimentation is clear and transparent, and has no odor.

The invention discloses a spiral type self loop anaerobic organisms reactor. It has the identity and support for the reactor. The reactor includes plug flow reaction chamber, common air chamber and gas liquid separation. The plug flow reaction chamber connects to common air chamber by excircle tube flaring pipe. The bottom of plug flow reaction chamber has discharge pipeline and influent pipe. The spiral lamina and back flow are set in plug flow reaction chamber. The bottom of back flow connects to the bottom of reaction chamber. Superior end connects with the center of three phase separator reducing pipe. The return-sludge flow sew of the bottom of three phase separator connects to settling chamber. The turbid water lifting pipe and back flow are fixed on the flaring pipe back flow board of three phase separator. The invention could effectively denial short current and air emerging phenomenon, intensify ground substance degradation. It ensures the high efficiency and stable of the running feature of reactor.

A digital vision system for use in turbid, dark or stained water is disclosed. Turbid water is opaque to the optical wavelengths viewable by humans but is transparent to near infrared (NIR) light. Using NIR wavelength illumination in turbid water allows viewing of objects that would otherwise not be visible through turbid water. NIR light is used to illuminate an area to be viewed. Video cameras comprising optical filters receive the NIR light reflected from objects in the camera field of view, producing camera video signals that may be processed and communicated to projector that convert the video signals to independent optical output video that is projected to the eye of the at optical frequencies viewable by humans. The user is thus provided with a real time vision system that allows the diver to visualize objects otherwise not visible using white light illumination.

The invention provides a sewage remediation method, which comprises the steps of: (1) cultivation of No. 2 Chinese Pennisetum water cultivated seedlings: a. selecting a No. 2 Chinese Pennisetum stem part growing for 3 and more than 3 months, and cutting the stem part into stem sections; b. treating the stem sections with a mixed solution of a stress resistant agent and a cell remediation agent; and c. putting the well treated stem sections of step b into a clean water pool quickly to conduct water culture of seedlings till 0.2-0.5cm long pure white fibrous roots grow around the stem nodes; and (2) ecological floating bed remediation: putting the water cultivated seedlings of step c into a fixed container with an upper opening and a lower opening, then fixing the fixed container on an ecological floating bed, and putting the water cultivated seedling filled ecological floating bed into polluted river to conduct remediation. The sewage remediation method provided by the invention subjects No. 2 Chinese Pennisetum to water culture treatment and combines the ecological floating bed so as to effectively solve the problems of water eutrophication, turbid water, and offensive smell.

Provided is a two-wheeled motor vehicle transmission box aeration structure, which can reliably prevent the turbid water into the aeration vent communicating with the reducer chamber. In the two-wheeled motor vehicle, the driving unit together with the engine to compose the power unit is constituted of a speed changer for process shift on the output of the engine, and gear reduction mechanism for decelerating the output of the speed changer and transferring to the rear wheel. The speed changer chamber for housing the speed changer and the reducer chamber for housing the gear reduction mechanism and stocking engine oil at the bottom are formed in the wheel box disposed connecting with the engine main body and extending toward the side of the back wheel, wherein, in order to communicate with the upside in the reducer chamber and with one end connecting the aeration pipe (114) with the wheel box along the upside of the wheel box (71) forwards, the other end of the aeration pipe (114) opens upwards.

The invention discloses an online monitoring system of sewage by a spectral interference method. The online monitoring system is characterized by comprising a turbidity monitoring system and a water-suspension / micropetroleum detecting system, wherein the principle of the turbidity monitoring system is embodied on different grey levels of patterns and different resolutions of CCD (Charge Coupled Device) patterns on an area array CCD, so that the proportion of suspensions in turbid water is determined; and the water-suspension / micropetroleum detection determines the suspensions and the content of oil in the water by utilizing frequency spectrum offset generated by light wave penetrating through different water qualities and change of Moire interference fringes generated by different light waves penetrating through standard solution. The online monitoring system disclosed by the invention has the advantages that (1) an advanced detection technology guarantees the accuracy of a measured value and long-time working stability; (2) analysis, user-defined setting and multiple alarming modes and management modes can be carried out on the real measured value; (3) automatic adjustment of the period of a self-cleaning sensor can be realized according to the working condition of a site and the data accuracy is guaranteed.

The invention discloses an aquaculture intelligent monitoring system. The aquaculture intelligent monitoring system comprises a water quality monitoring device, a site automatic control device, an oxygen enrichment control device and a wireless control device, wherein the water quality monitoring device is used for collecting dissolved oxygen, the PH value, the water level, the salinity and turbid water quality environment parameter data of an aquaculture field, the site automatic control device is used for receiving the turbid water quality environment parameter data collected by a water quality monitoring station through the wireless control device and sending wireless control instructions to the oxygen enrichment control device through the wireless control device, and the oxygen enrichment control device is used for controlling oxygen enrichment equipment to operate according to the wireless control instructions. The water quality environment is automatically monitored in real time, the oxygen enrichment equipment is controlled to enrich oxygen in real time in a wireless mode through the control device, and therefore manpower is largely saved, meanwhile, the control over the water quality for aquaculture meets standard requirements, and the high-standard need for the aquaculture is met.

Provided is an efficient sewage heat exchange system capable of carrying out on-line cleaning and automatic decontamination. Filtration is carried out on dirt and impurities through devices such as a grit chamber, a water taking pool and a hair filter, filtered sewage enters a sewage heat exchanger along with solid particles separated through a solid-liquid separator to participate in heat exchange, meanwhile, a control valve b, a control valve c, a control valve d and a control valve e are arranged on four sewage pipes respectively, the sewage pipes are connected with the sewage heat exchanger, and back washing is carried out on the sewage pipes through switching between opening and closing of the control valves. The problems that in the process of using the sewage as a cold and heat source, the dirt and the impurities block pipelines, hair blocks a heat exchange device, the size of the heat exchange device is large due to the dirt, and performance reduction and faults of the heat exchange device are caused by turbid water are thoroughly solved; heat exchange performance of the efficient sewage heat exchange system is greatly improved, it is ensured that the efficient sewage heat exchange system is safe, reliable and stable, the efficient sewage heat exchange system can be used for using the sewage or surface water as a low-level cold and heat source to carry out cooling and heating through a heat pump technology, or used for cooling industrial devices, and high efficiency and environmental friendliness are achieved.

A pretreatment particle-accelerating deposition and separation apparatus and method for purifying turbid raw water, which based on the theories of laminar flow requirement, particle-accelerating vertical deposition and water horizontal movement, separates water molecules from turbidity particles in a laminar flow region (with a Reynolds number lower than 1,000). By accelerating the velocity of high-turbidity raw water and the turbidity particles, the particles settle vertically because of inertia. Thus, the turbidity particles can be removed physically from the raw water and clean water can be collected at different heights of the apparatus while concentrated turbid water can be released to a nearby body of water after appropriate treatments. Thereby, turbid water can be purified for the subsequent coagulation, sedimentation and filtration processes in traditional water treatment plants.

The invention relates to a high-sand-content turbid water density current detection method. Density current data information is detected by a high-sand-content turbid water density current detection system. The method comprises the following steps that (a) a motor runs through a turntable to drive a measurement support rod to move up and down to detect data signals of different water depths in a reservoir; (b) a data processing module and a single-chip microcomputer control module process the data signals, and judge the formation of density current by margin calculation; (c) the single-chip microcomputer control module transmits a data signal result to an upper computer monitoring system through wireless GPRS (general packet radio service), and displays the data signal result in real time; (d) back-washing is performed after detection. According to the method, a four-beam technology and an ultrasonic beam area ratio method are used for detecting the sand content of water in the reservoir, and the ultrasonic speed CS, the sand content VC and the ambient temperature T are subjected to data fusion processing, so that measured data is accurate and high in reliability.