238 results about "Sludge settling" patented technology

The invention discloses an intelligent monitoring system for sewage treatment in the coal chemical industry, and relates to the technical field of sewage treatment.The intelligent monitoring system is characterized in that a water quality monitoring unit is used for collecting parameters such as COD, turbidity, pH and heavy metal ion concentration in real time, the change trend of water quality in a short time is predicted through a long-short term memory (LSTM) network, and then adding parameters of a flocculating agent are dynamically calculated; the defects of a fixed adding curve or artificial experience adjustment are overcome, so that the adding amount, the type and the speed of the flocculating agent can be adaptively adjusted to be matched with the change of sewage components; the addition optimization unit is combined with a CNN-LSTM model to analyze the rheological characteristics of the sludge, so that the addition of the flocculating agent adapts to the rheological change of the sludge, the flocculation effect is optimized, and the sludge settling performance is improved; meanwhile, the stirring control unit adjusts the stirring strength and time in real time based on ultrasonic online monitoring data, so that the flocculating agent is fully dispersed, the particle distribution state is optimized, the flocculation reaction is more uniform, and the subsequent precipitation separation efficiency is improved.

The invention relates to the technical field of sewage control, in particular to a control method and system of sewage treatment equipment and a medium. The method comprises the following steps: arranging a buffer cavity made of a flexible material at the water inlet end of sewage treatment equipment; the volume of the buffer cavity is adjusted in real time according to the original water inlet flow, and a flexible buffer cavity volume dynamic adjustment strategy is obtained; if the flexible buffer volume dynamic adjustment strategy executes the volume adjustment of the buffer cavity, evaluating the water outlet stability degree of the buffer cavity to obtain buffer effect evaluation data; a miniature electromagnetic valve is used for controlling the inlet opening degree of a reactor unit in the sewage treatment equipment, and the water inlet flow of the reactor unit is controlled to be balanced; and adjusting the porosity of the reactor unit partition plate to realize dynamic control and adjustment of sludge sedimentation. By dynamically adjusting the volume of the buffer cavity, water inlet flow fluctuation is effectively buffered, fine control over sludge sedimentation is achieved, and the impact resistance and operation stability of sewage treatment equipment are remarkably improved.

The invention relates to the technical field of sewage treatment optimization, in particular to an intelligent sewage plant full-process management and control method based on digital twinning, which comprises the following steps: acquiring concentration data to calculate rate clustering fluctuation, setting a threshold value mark stable section to analyze sedimentation association, constructing dynamic threshold value output control information, and adjusting stirring to generate a sludge discharge instruction set. According to the method, through the time sequence clustering of the concentration change rate, the stable section in the sludge sedimentation process is identified, the concentration fluctuation identification precision is improved, the sedimentation hysteresis is judged based on the time difference between the sedimentation track and the standard curve, the particle layering identification capability is improved, and the dynamic threshold matrix is constructed by using the correlation degree and the particle size data; the concentration range, the settling velocity deviation and the particle size distribution dispersion are fused, the multidimensional property of a regulation and control basis is enhanced, the interface position movement trend is combined, the concentration range is matched, a stirring intervention instruction is output, real-time regulation and accurate control of the layered settling process are achieved, and the treatment stability and the reaction time efficiency are improved.

The invention provides an intelligent monitoring device and method for starting and optimizing operation of aerobic granular sludge. The device is mainly composed of a data acquisition module, a data processing module, a data integration and visualization module and a power supply module. The cameras are erected above and on the side of the granular sludge reactor and are used for respectively acquiring surface images of the granular sludge reactor and mud-water interface images in a precipitation stage. The collected images are transmitted to the industrial personal computer in real time for data processing, the constructed deep learning model is called to predict the particle size range, and two settling performance parameters, namely the maximum settling rate Vmax and the time t for reaching compression precipitation in the settling process are automatically extracted according to the generated sludge settling curve. If the identified image features or the settlement performance parameters reach a set threshold value, an alarm is triggered. The device can realize real-time monitoring and abnormity alarm of aerobic granular sludge characters, replaces daily inspection of personnel, and assists operation and maintenance personnel in traceability decision making through data visualization.

The utility model relates to an aeration tank with a desilting function, which comprises a water tank body, when sewage is subjected to aeration treatment, the sewage is discharged into the water tank body from a pipeline, then activated sludge for treatment is added into the water tank body, then air for aeration is pumped into an air supply pipe by an air compressor, and then the air is guided into an aeration disc through the air supply pipe; finally, gas is discharged into the pool body through the aeration disc for aeration, a first motor is started to drive a rotating rod to rotate during aeration, the rotating rod drives a surface cleaning plate to stir the interior of the pool body, one side of the cleaning plate is attached to the inner wall of the pool body, and sludge at the bottom of the inner wall of the pool body is scraped out; a drain valve is opened, the sludge deposited at the bottom of the pool body is discharged into a collecting hopper and a blow-off pipe, a second motor is started to drive a spiral conveying paddle to rotate, and the sludge in the blow-off pipe is discharged from a discharge valve.

The utility model discloses a layered clarification fluidized bed which comprises a vertical closed tank body, an inner cylinder fixedly connected in the tank body, a water outlet pipe fixedly connected to the top of the tank body in a penetrating manner, and a water inlet pipe fixedly connected to the part, close to the bottom, of the tank body in a penetrating manner, the bottom of the inner cylinder is closed, the water inlet pipe is communicated with the bottom of the inner cylinder, the top of the inner cylinder is open, the top end of the inner cylinder is fixedly connected with a reducing expansion pipe, and the large-diameter end of the expansion pipe is upward; the middle cylinder is arranged on the outer side of the inner cylinder and communicated with the middle of the inner cylinder, and sludge flows back to the middle of the inner cylinder; a cavity gap is formed among the tank body, the middle cylinder and the inner cylinder and serves as a sludge settling channel, sludge falls into a sludge collecting area at the bottom of the tank body, and the sludge collecting area is communicated with the outside of the tank body to discharge sludge. A new density layering, clarifying and separating mechanism is provided and applied in a coagulation and clarification treatment technology, the clarification and separation level is improved by utilizing the blocking characteristic of layering fluid, the effluent quality is improved, a new sludge backflow path is applied, the coagulation quality is improved, and formation of density layering fluid is promoted.

The invention relates to a magnetic enhanced sewage treatment system and a treatment process. The magnetic enhanced sewage treatment system comprises a biochemical tank, a reoxygenation tank, a secondary sedimentation tank, a sludge hydrolysis / activation tank and a magnetic powder feeding device which are connected in sequence. The biochemical tank comprises a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank and a facultative tank which are connected in sequence, a nitrification liquid part of the aerobic tank flows back to the anoxic tank, and the facultative tank is connected with the reoxygenation tank. The sludge hydrolysis / activation tank hydrolyzes sludge on sunny days and activates the sludge on rainy days, and the treated sludge flows back to the facultative tank. The magnetic powder adding device is used for adding magnetic powder into the facultative tank in rainy days. Part of sludge obtained at the bottom of the secondary sedimentation tank flows back to the pre-anoxic tank, part of the sludge flows back to the sludge hydrolysis / activation tank, and the other part of the sludge is dehydrated. According to the invention, excessive anaerobic denitrification reaction of sludge in the secondary sedimentation tank is effectively inhibited through the reoxygenation tank, the sludge sedimentation speed of the secondary sedimentation tank is increased by adding magnetic powder into the facultative tank, and the water treatment amount in rainy seasons is increased. According to the invention, dynamic optimization of carbon source utilization efficiency and biological nitrogen and phosphorus removal capability is realized through the sludge hydrolysis / activation pool, and stable operation under different working conditions of sunny days and rainy days is cooperatively guaranteed.

The invention discloses a system and a method for highly automatically detecting sludge sedimentation layering based on color difference, and particularly relates to the field of sewage treatment. Comprising an automatic test box body module, a visual acquisition module, a color analysis processing module, a data management transmission module and a field data analysis module, the automatic test box body module is used for completing filling, discharging and cleaning of a sludge sample, stabilizing a detection environment and supporting a standardized sedimentation test; the visual acquisition module is used for regularly shooting sludge sedimentation images, embedding time, places and biochemical pool serial number information, and retaining traceable visual detection data; and the color analysis processing module is used for identifying digital characteristics of color mutation characteristics in the image and accurately positioning the height of the sludge layering interface. The method has the advantages of being high in interface positioning precision, high in anti-interference performance, high in data visualization and high in expansibility.

The utility model relates to the technical field of sewage treatment, and discloses a process device for improving sewage treatment capacity, which comprises a sewage aeration tank, a temperature-regulating aeration mechanism, a dust filtering mechanism, a transverse moving mechanism and a sludge cleaning mechanism, and the temperature-regulating aeration mechanism extending into the sewage aeration tank is mounted on one side of the sewage aeration tank; a dust filtering mechanism is connected to the temperature adjusting aeration mechanism, a transverse moving mechanism is mounted at the top of the sewage aeration tank, and a sludge cleaning mechanism extending to the bottom end in the sewage aeration tank is mounted on the transverse moving mechanism. According to the utility model, sewage aeration treatment is convenient, and the temperature of the sewage can be conveniently adjusted according to weather temperature, so that bacteria keep high activity, and the decomposition speed of the bacteria on organic matters is increased; sludge settled in the sewage is convenient to clean.

The invention relates to the technical field of sewage treatment, and discloses equipment for automatically detecting SV of sludge settlement, which comprises a reading machine and a mounting support plate on one side of the reading machine, a measuring cylinder is arranged on one side, close to the reading machine, of the mounting support plate, and a mounting seat is fixedly connected to one side, close to the mounting support plate, of the measuring cylinder. A first mounting frame is mounted on the side, close to the reading machine, of the mounting supporting plate, a sliding rail mechanism is fixedly connected to the side, close to the mounting supporting plate, of the first mounting frame, a wire groove guide chain mechanism is mounted on the side, away from the measuring cylinder, of the sliding rail mechanism, and a sliding table guide rail for flushing and an SV detection sliding table guide rail are arranged on the side, close to the measuring cylinder, of the sliding rail mechanism. According to the device, after sampling, the device can automatically detect SV30, data are obtained by driving a mechanical structure to move through signals of an optical sensor, the SV30 value is obtained through integration and analysis, the measurement precision can reach 1 ml, a non-contact measurement method is adopted in the mode, and pollution to measurement equipment can be reduced.

The invention discloses an activated sludge fluorescence online detection device based on a flow cell, and relates to the field of activated sludge biomass detection.The activated sludge fluorescence online detection device comprises a fluorescence spectrophotometer and a fluorescence spectrophotometer sample table arranged on the fluorescence spectrophotometer, and the fluorescence spectrophotometer is connected with a processor through a cable; the fluorescence spectrophotometer sample table is connected with a sample cup through a guide pipe, activated sludge is arranged in the sample cup, and a peristaltic pump is arranged on the guide pipe; the activated sludge continuously flows through the fluorescence spectrophotometer sample table through the guide pipe for three-dimensional fluorescence detection through the peristaltic pump, sludge sedimentation in a traditional cuvette is avoided, measurement is simple and convenient, and on-line real-time monitoring of the activated sludge biomass can be achieved.

The invention discloses an iron powder-pyrite coupled algal-bacterial symbiosis sewage treatment device and method.The iron powder-pyrite coupled algal-bacterial symbiosis sewage treatment device comprises an algal-bacterial symbiosis reactor body, an iron powder-pyrite assembly, a water inlet pump, an aeration system and a PLC control system; an inclined plate settling zone, a sludge settling zone and a reactor water outlet are arranged at the top, conversion of organic matters and ammonia nitrogen is realized through photosynthetic oxygen production, effluent from the top of the algal-bacterial symbiotic reactor is pumped into an iron powder-pyrite assembly by an external circulating pump, nitrate is reduced into nitrogen through sulfur autotrophic denitrifying bacteria, and phosphorus is removed through iron flocculent precipitation. The invention has the following beneficial effects: the algal-bacterial symbiotic system can utilize light energy to carry out photosynthesis, does not need a large amount of aeration, and reduces aeration energy consumption; the iron powder is combined with a sulfur autotrophic denitrification system, so that the long-term operation performance of pyrite autotrophic denitrification can be effectively improved, nitrogen and phosphorus removal is enhanced, and generation of sulfate radicals is reduced.

The invention belongs to the technical field of sewage biochemical treatment, and particularly relates to an internal circulation anaerobic reaction tower and an esterification wastewater treatment method.The internal circulation anaerobic reaction tower comprises a tower body, a rotary water distributor is arranged at the bottom in the tower body, two three-phase separators are arranged in the tower body in the height direction at intervals, and the two three-phase separators communicate with a gas-liquid separation cavity through ascending pipes; the gas-liquid separation chamber is located at the upper end of the tower body, a gas-liquid separation assembly is arranged in the gas-liquid separation chamber, the gas-liquid separation chamber is communicated with one end of the sinking pipe, the other end of the sinking pipe is located above the rotary water distributor, a gas-liquid mixture enters the gas-liquid separation chamber through the ascending pipe by virtue of the three-phase separator, and granular sludge settles and flows back under the action of gravity; after a gas-liquid mixture is stirred by the gas-liquid separation assembly, gas rises and is discharged out of the system, liquid flows back to the position above the rotary water distributor through the sinking pipe under the action of self gravity, stable internal circulation is formed, efficient backflow of sludge can be achieved without additional power, and the reaction efficiency and the treatment capacity are greatly improved.

The invention belongs to the technical field of sewage treatment, and discloses a method for strengthening anaerobic fermentation of sludge and synchronously producing medium-chain fatty acid and hydrogen. The method comprises the following steps: settling and concentrating sludge, mixing the sludge with alkaline biochar, adding potassium ferrate for reaction to obtain pretreated sludge, adjusting the pH value, mixing the pretreated sludge with an electron donor and inoculated sludge, and carrying out anaerobic fermentation to obtain fermentation liquor rich in medium-chain fatty acid and hydrogen. An alkaline biochar-potassium ferrate coupling system is utilized to crack extracellular polymeric substances and cell walls of the sludge, so that particle organic matters are driven to be dissolved, and the activity of methane bacteria is inhibited; fe2O3 derived from potassium ferrate and biochar form an iron-carbon complex in situ, and a composite technology with triple functions of pretreatment, electronic regulation and methane inhibition is formed by strengthening electron transfer efficiency and enzyme activity and promoting an organic matter acidification process and a carbon chain extension reaction, so that synchronous recovery of medium-chain fatty acid and hydrogen is realized; the sludge treatment efficiency is improved.

The invention discloses a sludge state abnormity identification and detection method for sewage treatment, and relates to a biochemical sewage treatment method, which comprises the following steps of: shooting image data in a sludge settling process by using high-definition image acquisition equipment, and enhancing pretreatment operation by using a sludge settling image; a novel hybrid model is constructed, and the model combines an improved YOLOv11 model and a K-means clustering algorithm and is used for sludge state detection and anomaly recognition; and edge deployment and model output: deploying the optimized and trained hybrid model to edge computing equipment to realize real-time sludge state detection and output of an anomaly recognition result, and judging whether an anomaly exists or not according to the output of the real-time sludge state detection and anomaly recognition result. According to the method provided by the invention, the sludge state and abnormal condition detection speed and accuracy are improved, the model parameter quantity is reduced, and the overall detection efficiency is improved. The technology shows a wide application prospect in the fields of environmental monitoring, sewage treatment and the like.

The invention provides a method for inhibiting sludge bulking through hypoxia-anoxic intermittent aeration. The method comprises the following steps: inoculating activated sludge into a sequencing batch reactor, introducing sewage to be treated, mixing, and carrying out intermittent aeration treatment; wherein the intermittent aeration treatment comprises at least one cycle formed by alternation of a low-oxygen treatment time period and an anoxic treatment time period; and in the low-oxygen treatment period, the dissolved oxygen concentration in the reactor is controlled to be higher than that in the anoxic treatment period through aeration. According to the method, through low-oxygen-oxygen-deficiency alternate environment regulation and control, efficient nitrification and denitrification are achieved, meanwhile, filamentous bacterium growth is selectively inhibited, flora structure optimization is promoted, the sludge settling performance is rapidly recovered, the system denitrification efficiency is improved, and the method has the advantages of being simple in process, environmentally friendly and low in operation cost.

The application discloses a sewage treatment system in-situ expansion method and device for improving the solid flux separation of a secondary sedimentation tank and a sewage treatment system. The method comprises the following steps: inputting activated sludge in the secondary sedimentation tank into a first separation cavity of a first-stage separation unit, so that the activated sludge is separated through spiral motion in the first separation cavity; according to the operation parameters of the secondary sedimentation tank and the performance of the activated sludge in an aeration tank in a biochemical treatment unit, inputting the activated sludge discharged from one of a first overflow port and a first underflow port of the first-stage separation unit into a second separation cavity of a second-stage separation unit, so that the activated sludge is separated through spiral motion in the second separation cavity, and inputting the activated sludge discharged from one of a second overflow port and a second underflow port of the second-stage separation unit back to the biochemical treatment unit. The method can regulate the solid load and sludge settling performance of the secondary sedimentation tank, increase the solid flux separation of the secondary sedimentation tank, and realize in-situ efficiency improvement and expansion of the sewage treatment system.

The present invention provides a device and method for promoting the generation of granular sludge applicable to a continuous flow reactor. The device includes a left baffle and a right baffle with a spacing therebetween. Inside the left baffle, a left flow guide plate and a left folding plate are sequentially arranged from bottom to top. Inside the right baffle, a right flow guide plate and a right folding plate are sequentially arranged from bottom to top. There is a spacing between the left flow guide plate and the right flow guide plate, and the spacing is adjusted by an adjusting mechanism to control the sludge sedimentation performance. A flow rate adjusting baffle with an adjustable angle is inclinedly arranged on the right baffle, and the residence time of the mixed liquid is controlled by controlling the adjusting angle of the flow rate adjusting baffle. The present invention can be directly installed in an existing continuous flow reactor, is applicable to the transformation of flocculent sludge into granular sludge in the existing continuous flow reactor, and realizes the promotion of the generation and screening of granular sludge through the principle of folding plate precipitation, thereby realizing the transformation of flocculent sludge into granular sludge in the continuous flow reactor.

The present invention relates to a magnetically enhanced sewage treatment system and treatment process. The magnetically enhanced sewage treatment system includes a biochemical tank, a reoxygenation tank, a secondary sedimentation tank, a sludge hydrolysis / activation tank, and a magnetic powder dosing device, which are connected in sequence. The biochemical tank includes a pre-anoxic tank, an anaerobic tank, an anoxic tank, an aerobic tank, and a facultative aerobic tank, which are connected in sequence. The nitrified liquid in the aerobic tank is partially returned to the anoxic tank, and the facultative aerobic tank is connected to the reoxygenation tank. The sludge hydrolysis / activation tank hydrolyzes sludge on sunny days and activates sludge on rainy days. The treated sludge is returned to the facultative aerobic tank. The magnetic powder dosing device adds magnetic powder to the facultative aerobic tank on rainy days. Part of the sludge obtained at the bottom of the secondary sedimentation tank is returned to the pre-anoxic tank, part is returned to the sludge hydrolysis / activation tank, and the remaining part is dehydrated. The present invention effectively suppresses excessive anaerobic denitrification of sludge in the secondary sedimentation tank through the reoxygenation tank, and increases the sludge settling rate in the secondary sedimentation tank by adding magnetic powder to the facultative aerobic tank, thereby increasing the amount of water treated in the rainy season. The present invention also achieves dynamic optimization of carbon source utilization efficiency and biological denitrification and phosphorus removal capacity through the sludge hydrolysis / activation tank, and synergistically ensures stable operation under different working conditions on sunny and rainy days.

The sludge settling separation equipment comprises a tank body, the tank body is internally composed of a gas collecting area, a settling area and a sludge storage area, the gas collecting area is provided with a gas outlet, the side wall of the settling area is provided with a sludge feeding pipe and a water outlet, the sludge storage area is in an inverted cone shape, and the bottom of the sludge storage area is provided with a sludge discharging pipe; the rotational flow inner part is arranged in the settling area, the rotational flow inner part is a cylinder body with the pipe diameter reduced from top to bottom, an opening in the bottom of the rotational flow inner part is a mud outlet, the top of the rotational flow inner part is closed, a clear liquid outlet is formed in the rotational flow inner part, and a feeding hole is formed in the side wall of the rotational flow inner part and is communicated with the sludge feeding pipe; and the baffle inner piece consists of a cylinder and a plurality of groups of baffle plates on the side wall of the cylinder. Compared with the prior art, the sludge settling separation equipment provided by the utility model can effectively improve the flowing and distribution characteristics of sludge and shorten the sludge settling separation time.

The utility model discloses an oxidation ditch for sewage treatment, which relates to the field of sewage treatment and comprises an oxidation pond, a water pumping pipe and a water inlet pipe are respectively arranged on two sides of one end of the oxidation pond, mounting sleeves are fixed on two sides of one end of the oxidation pond and in the middle of one side of the oxidation pond, and the water pumping pipe and the water inlet pipe are connected with the mounting sleeves; a filter part is arranged in one side of one end of the oxidation pond, and a biological treatment assembly is arranged at the other end of the oxidation pond and is used for treating sewage in the oxidation pond; a sludge pumping assembly is arranged on one side of the filtering part, is arranged on one side of the oxidation pond and is used for pumping and treating sludge settled in the oxidation pond. According to the sewage treatment device, the filtering piece is arranged in the oxidation pond, and the coarse filtering plate on the filtering piece plays a role in preliminarily filtering sewage, so that large foreign matters in the sewage can be filtered out, and workers can intensively fish out the large foreign matters conveniently.

The invention provides a wastewater treatment system and method for improving sludge settleability, the wastewater treatment system comprises a first treatment line, the first treatment line comprises an activated sludge tank, a secondary sedimentation tank and a classifier, the outlet of the activated sludge tank is connected with the inlet of the secondary sedimentation tank, the sludge outlet of the secondary sedimentation tank is connected with the activated sludge tank, and the outlet of the secondary sedimentation tank is connected with the classifier. An outlet of the activated sludge tank is connected with an inlet of the classifier, the classifier comprises a light component outlet and a heavy component outlet, and the heavy component outlet is connected with the activated sludge tank; and heavy components sorted by the sorter are conveyed into an activated sludge tank. With the adoption of the technical scheme, the part difficult to settle is separated out through wet separation and discharged as residual sludge, so that the settling performance of suspended biomass is improved, and the treatment capacity of the settling pond and the treatment capacity of the whole treatment system are improved; and the mixed liquid in the activated sludge tank is used as the feed of the classifier, so that compared with the traditional hydrocyclone, the energy consumption is reduced.

The utility model discloses a sludge reflux tank capable of prolonging sludge settling time, which comprises a sludge reflux tank, one end of the sludge reflux tank is communicated with a sewage treatment tank, and the other end of the sludge reflux tank is communicated with a sludge settling tank through a reflux inlet; symmetrical guide rails are arranged on the two sides above the backflow port, connecting rods are slidably connected to the guide rails through guide blocks, baffles are arranged at the bottoms of the connecting rods and used for shielding the backflow port, and the height of the baffles is smaller than that of the backflow port. The reflux inlet is blocked by the baffle plate, and the height of the baffle plate is smaller than that of the reflux inlet, so that the lower-layer sludge is settled in the sludge reflux tank, and the top-layer slightly clear sewage overflows from the baffle plate and flows back to the sludge settling pond to be settled again; compared with an existing direct backflow mode, the mode has the advantages that the sludge backflow grooves can play a role in settling sludge, and a plurality of sludge backflow grooves are connected in parallel to form a large sludge settling pond, so that the sludge settling efficiency is greatly improved.

The invention relates to the technical field of sewage treatment, and discloses a mud storage tank structure which comprises a first baffle, a second baffle, a mud inlet, a mud outlet and a supernatant port, one end of the first baffle is connected to the wall of a mud storage tank in a swing adjusting mode, and the other end of the first baffle inclines towards the bottom of the mud storage tank; the second baffle is vertically arranged at the bottom of the sludge storage tank, and a set distance is formed between the free end of the first baffle and the second baffle; the mud inlet is formed in the pool wall of the mud storage pool and located above the first baffle; the sludge outlet is positioned at the bottom of the tank wall of the sludge storage tank and is positioned below the first baffle plate; the supernate opening is formed in the top of the wall of the sludge storage tank. The sludge dewatering device has the beneficial effects that under the action of the first baffle, new sludge entering from the sludge inlet is prevented from being mixed with thick sludge settled below the first baffle, and the supernatant outlet is formed in the top of the sludge storage tank, so that the total volume of the sludge extracted from the bottom of the sludge storage tank is reduced, and the sludge dewatering efficiency is improved.

The utility model relates to a flowing type sludge settling device which comprises a water tank, a partition plate is arranged in the water tank and divides the upper area of the water tank into a water inlet area and a water outlet area, and the bottoms of the water inlet area and the water outlet area are communicated; the water inlet area is provided with a water inlet, and the drainage area is provided with an overflow port; a muddy water discharge port for driving the waterwheel to rotate is formed in the bottom of the water The utility model has the beneficial effects that mud-water mixed liquid settled at the bottom of the water tank is in a flowing state; mud-water mixed liquid can be collected and reused, for example, the mud-water mixed liquid is used for driving the waterwheel to rotate; clear liquid supernatant can be discharged; the device is simple in structure and convenient to use, can discharge, drain and decelerate upwards-overflowing supernatant, slows down the flowing-out process of the supernatant, reserves enough settling time for large-particle sludge left in the supernatant, and can play a role in defoaming the effluent of the supernatant.

The application discloses an electrolytic catalytic biological denitrification reactor and relates to the technical field of sewage treatment. The electrolytic catalytic biological denitrification reactor comprises a reactor body, an external power supply connected to the reactor body, an anaerobic reaction chamber and an aerobic reaction chamber separated by a first partition wall in the inner cavity of the reactor body, and a first drainage hole formed in the first partition wall. A water inlet is formed in the outer side wall of the anaerobic reaction chamber. A unit cathode and a water flow propeller are fixed in the anaerobic reaction chamber. A water outlet is formed in the outer side wall of the aerobic reaction chamber. A unit anode and a water flow propeller are fixed in the aerobic reaction chamber. The unit anode and the unit cathode are connected in parallel through wires, and the wires are connected to the external power supply. The electrolytic catalytic biological denitrification reactor can effectively improve the biological denitrification efficiency, reduce the pollution to the environment, has strong adaptability to water quality changes, has good sludge settling performance, is easy to maintain, manage and operate, has high denitrification efficiency, and has small land occupation.

The invention relates to a harmless treatment method of aquaculture sewage, which comprises the following steps: (1) gathering the aquaculture sewage, enabling the aquaculture sewage to flow into a sewage collecting tank provided with a grid, adding a microbial preparation at one time, and then enabling the aquaculture sewage to enter a precipitation filtering tank from the sewage collecting tank through a pipeline; (2) a flocculating agent is continuously added into the sewage, the sewage is continuously aerated with air while the flocculating agent is added, and the retention time of the sewage in the flocculation basin is 5-15 minutes; (3) standing the aquaculture sewage entering the precipitation and filtration tank for 1-2 hours, and then pumping supernatant clear water in the precipitation and filtration tank into a culture pond for culture production after membrane filtration treatment; sludge settled at the bottom of the settling and filtering tank enters sludge drying equipment through a sludge pump to be dehydrated and then is used as seawater pond fertilizer water or used as farmland fertilizer after desalination treatment. According to the invention, aquaculture pollution can be effectively degraded, the cost is low, and aquaculture sewage can be reasonably utilized.

The utility model relates to the technical field of pipeline dredging equipment, and particularly discloses a device for accelerating the flowing of a medium in a pipeline, which comprises a mounting pipe, a rotating shaft is rotatably arranged in the mounting pipe, two ends of the rotating shaft extend out of the mounting pipe, and a plurality of driving blades are arranged around the part of the rotating shaft in the mounting pipe; a driving piece is arranged outside the mounting pipe and is a motor; the driving part is in transmission connection with one end of the rotating shaft, and when sewage flows from left to right in the mounting pipe, the driving part drives the rotating shaft to rotate anticlockwise; when sewage flows from right to left in the mounting pipe, the rotating shaft is driven by the driving piece to rotate clockwise. The rotating shaft is arranged in the radial direction of the mounting pipe and horizontally arranged in the mounting pipe. A plurality of water injection pipes are arranged on the mounting pipe in a communicating manner, and electromagnetic valves are arranged on the water injection pipes; the problems of blockage, unsmooth circulation and the like of a sludge conveying pipeline caused by sludge sedimentation and drying frequently occur in an existing sludge pipeline are solved.

The utility model provides a comprehensive regulating tank for wastewater treatment, which comprises a tank body, a plurality of gas disturbing pipes are laid on the tank bottom of the tank body, the gas disturbing pipes are connected with gas supply pipes, gas outlets communicated with inner cavities of the gas disturbing pipes are arranged on the pipe walls of the bottom surfaces of the gas disturbing pipes, plugging pieces are arranged at the gas outlets, the plugging pieces are conical, and the gas supply pipes are communicated with the gas disturbing pipes. The blocking piece abuts against the interior of the air outlet from the outer side and seals the air outlet, and the blocking piece is connected with an elastic mechanism. According to the utility model, high-pressure air blown out from the air outlet is used for disturbing sludge at the bottom of the tank, the sludge settled at the bottom of the tank is scattered, and sludge impurities float again under the action of the air, so that the sludge sediment can be effectively reduced. Meanwhile, the blocking piece can block the air outlet when air does not flow out of the air outlet and can be automatically opened in the air outlet process, sewage and sludge impurities can be effectively prevented from entering the air disturbance pipe through the air outlet, the replacement and maintenance period of the air disturbance pipe is prolonged, and the maintenance frequency of the comprehensive adjusting tank is reduced.

According to the sludge settling ratio detector provided by the utility model, the height of the sludge level is monitored and shot in real time through the camera, and the shot height data of the sludge level is uploaded to the PLC processor for analysis and storage, so that the high precision of detection and the traceability of the data are ensured. Through the design of the top water inlet pipe and the bottom water inlet and outlet, a plurality of valves, a vacuum generation device and high-pressure air are matched, and the complete operation process of automatic water inlet, sedimentation, flushing and drainage is achieved. Particularly, pulse air washing is realized through high-pressure air, and deep cleaning of the measuring tool is realized through combination of tap water flushing, so that the cleaning efficiency of equipment is remarkably improved, and the influence of accumulation of residues on the measuring tool on subsequent detection is avoided. Meanwhile, the detector can flexibly adjust detection parameters according to actual requirements, meets the requirements of high-frequency and long-time continuous detection, greatly improves the automation level of sludge sedimentation, and reduces the manual operation cost.