65results about "Water treatment parameter control" patented technology

A water treatment system is provided including a disinfection system, a filter and a turbine generator. A manual pump is positioned downstream of the filter to create negative pressure to draw water through the filter. The manual pump also creates positive pressure to dispense treated water from the outlet of the system. The movement of the water through the system powers the turbine generator. The power generated can be used to monitor a characteristic of the water treatment system.

The invention relates to a method for treating chemical nickel plating waste water on the basis of ozonation and biochemical technique, and belongs to the field of environment protection. Through ozone pre-oxidation, microbe inhibiting phosphiteis are converted into orthophosphate before the biochemical treatment; meanwhile, ozone can oxidize partial complex compounds; nickel after the complexation relieving becomes free nickel ions; 80 percent or more metallic nickel is precipitated through a primary precipitation pool; the outlet water total nickel of the primary precipitation pool is less than 20mg/L; anaerobic and aerobic microbes can adapt to the environment through domestication; through an aerobic biochemical technology, ammonia nitrogen is converted into trate nitrogen; then, outlet water of an aerobic pool flows back to an anaerobic pool; the heterotrophic nutrition denitrification denitrification is realized; meanwhile, the biological effect is used; organic matters in waste water are thoroughly removed, so that the nickel in the complexation state becomes free nickel ions; then, the metallic nickel can be thoroughly removed by using the good adsorption and flocculation performing of the active sludge. The method has the advantage that the total nitrogen in the treated waste water conforms to national emission standards.

A water disinfection delivery treatment system first filters the supply by a particle and then a carbon filter. The partially treated flow is split in two and a first part passes through a first cutoff valve and is fed into a disinfection (iodine) chamber, filter or feeder via a flow restricter. The chamber output passes through a second solenoid driven cutoff valve. The second part is fed to a third cutoff valve and this valve's output is summed with the second valve's output and then fed into a holding tank. The tank retain's a volume such that the water remains therein for at least a period sufficient to permit a minimum 3 log reduction of pathogenic microbes. A final carbon filter is downstream of the tank as is a meter and dispenser. A method is also provided for delivering potable drinking water.

The invention discloses a prediction model for microorganism-derived dissolved organic nitrogen in sewage and application of the prediction model, and belongs to the technical field of sewage treatment. The prediction model is an ASM-mDON prediction model which is established according to operating parameters in the activated sludge treatment stage of a sewage plant, and component concentrations,kinetic parameters and stoichiometric numbers of influent water. The application specifically comprises the steps of (1) establishing the ASM-mDON prediction model; (2) measuring sewage components andparameters of the ASM-mDON prediction model; (3) predicting the concentration of microorganism-derived dissolved organic nitrogen in the sewage. The ASM-mDON prediction model is suitable for simulation of a steady-state biological sewage treatment system, and can solve the problem that in the actual sewage treatment process, microorganism-derived dissolved organic nitrogen is hard to quantify. Aprediction method has the advantages that prediction is quick, quantification is accurate and operation is convenient, and has practical significance in solving the problem of the quality of the sewage.

The invention discloses industrial acidic sewage treatment equipment. The treatment equipment comprises a sewage filtering tank, a sewage neutralization tank, a sewage reaction tank and an impurity collection tank, wherein a filter screen is arranged in the sewage filtering tank, a brush roller is arranged at the upper part of the filter screen, and the brush roller is connected with a pushing mechanism. The brush roller can be pushed by the pushing mechanism to move in a moving groove, so impurities on the filter screen are removed and cleaned into the impurity collecting tank; sewage can bepumped into the sewage neutralization tank through a first pump, stirring blades are driven by a stirring motor to stir the sewage, and a chemical pumping cylinder can be driven by the stirring motorto work at the same time, so a chemical in a chemical tank is pumped into the sewage neutralization tank to be neutralized with the sewage; and the sewage can be pumped into the sewage reaction tank again for a reaction through the second pump. The equipment of the invention has the advantages of simplicity and convenience in sewage treatment, capability of ensuring that sewage meets neutralization requirements and capability of automatically cleaning and filtering impurities, and is mainly used for sewage treatment.

The invention provides a domestic sewage reuse apparatus. The apparatus comprises a shell, a water inlet and a water outlet, and also comprises a precipitation chamber, a disinfection chamber and a deodorizing chamber, the water inlet is positioned at the upper end of the precipitation chamber, a flocculant introducing device is arranged at one side of the water inlet, a first filter screen and a second filter screen are arranged in the precipitation chamber in parallel from top to bottom, a flow division member for dividing flow of sewage discharged into the water inlet is arranged between the water inlet and the first filter screen, an inclined plate for restricting the movement of sludge is arranged between the second filter screen and the bottom surface of the precipitation chamber, the precipitation chamber communicates with the disinfection chamber, ultraviolet lamp areas and water permeation areas are transversely alternately arranged in the disinfection chamber in parallel, the disinfection chamber is connected with the deodorizing chamber, and the connection is provided with a deodorizing agent introducing device.

The invention discloses an integrated double-circulation oxidation ditch device for town sewage and a treatment method. The integrated double-circulation oxidation ditch device comprises an anaerobic zone, an anoxic zone, an aerobic zone and a secondary sedimentation tank which are communicated in sequence, the anoxic zone comprises a first anoxic zone and a second anoxic zone; the aerobic zone comprises a first aerobic zone and a second aerobic zone, and a reflux pump is arranged between the anoxic zone and the aerobic zone. The anaerobic zone, the anoxic zone and the aerobic zone are internally provided with submersible stirrers, and the anoxic zone and the aerobic zone are respectively provided with a partition wall and a guide wall to form circulation in each zone; and the synchronous denitrification and phosphorus removal effect of nitrate nitrogen is realized in the anoxic zone, so that the purposes of stably removing organic pollutants COD and removing nitrogen and phosphorus are achieved, the COD removal effect is improved, and the nitrification and denitrification nitrogen removal and phosphorus removal efficiency is improved. The integrated structure of the device has the characteristics of simple structure operation and low cost, and the investment and operation cost can be further reduced.

The organic waste water treatment apparatus according to the present embodiment comprises a biological reaction tank, an ammonia concentration-measuring device, a total nitrogen concentration-measuring device, a total phosphorus-measuring device, and a control unit. The biological reaction tank comprises an anaerobic treatment region, an adjustment region, and an aerobic treatment region, and the adjusting treatment region is between the anaerobic treatment region and the aerobic treatment region. The adjustment region is capable of switching to one or more atmospheres from among an anaerobic atmosphere, a micro-aerobic atmosphere and an aerobic atmosphere. The ammonia concentration-measuring device measures the ammonia concentration of the water being processed in the aerobic treatment region. The total nitrogen concentration-measuring device measures the total nitrogen concentration of treated water flowing out of the biological reaction tank. The total phosphorus concentration-measuring device measures the total phosphorus concentration of the treated water flowing out of the biological reaction tank. The control unit adjusts the range of the atmosphere in the adjustment region on the basis of the values measured by the ammonia concentration-measuring device, the total nitrogen concentration-measuring device and the total phosphorus concentration-measuring device.

The invention discloses a two-stage short-cut nitrification and anaerobic ammonia oxidation coupled endogenous denitrification deep denitrification device and a method thereof. The device comprises araw water tank, a PN reactor, an intermediate water tank and an SAED reactor, urban sewage raw water is stored in the raw water tank, the PN reactor is connected with the raw water tank through a PN water inlet pump, the PN reactor is connected with the middle water tank through a PN water outlet valve; the municipal sewage raw water in the raw water tank is further connected to the SAED reactor through a SAED water inlet pump, the SAED reactor is connected with the middle water tank through the short-cut nitrification liquid inlet pump, and the municipal sewage raw water and short-cut nitrification liquid in the SAED reactor are subjected to deep denitrification and then discharged through a water outlet valve of the SAED reactor. The anaerobic ammonia oxidation coupling endogenous denitrification is taken as a main denitrification way, and the method has the advantages of no need of adding an external carbon source, economy, high efficiency, stable operation and the like, and is suitable for the technical fields of construction of small and medium-sized urban sewage treatment plants, upgrading and reconstruction of constructed projects and the like.

The invention discloses an eco-friendly sewage high-efficiency pressure filtration treatment device. The device comprises a water feeding pipe, a treatment tank, a stirring motor, a heater, a pressurefiltration tank, a filter plate, a spring, a water outlet pipe, a gas collection tank, an impurity discharge pipe and an ionization bar. The side wall of the top of the treatment tank is connected tothe water feeding pipe. The top of the treatment tank is provided with an agent addition pipe. The top of the treatment tank is provided with a stirring motor. An output shaft of the stirring motor is connected to a rotation shaft. The inner wall of the treatment tank is provided with multiple defoaming spines. The ionization bar is arranged in the treatment tank. The inner wall of the treatmenttank is provided with the heater. The side wall of the treatment tank is provided with a timer. The top of the treatment tank is communicated with the gas collection tank through a breather pipe. Thebottom of the treatment tank is provided with an inclined guide plate. The lowest end of the inclined guide plate is communicated with the bottom of the pressure filtration tank through a liquid conveying pipe. Multiple filter plates are arranged in the pressure filtration tank. The top of the pressure filtration tank is provided with a water outlet pipe. The bottom of the pressure filtration tankis provided with the impurity discharge pipe. The eco-friendly sewage high-efficiency pressure filtration treatment device improves sewage treatment efficiency and effects and environmental protection safety, has a simple structure, realizes a low cost, is easy to use and is conducive to promotion.

The invention discloses a microbial water purifier for aquaculture water bodies, wherein the microbial water purifiers for aquaculture water bodies are activated bentonite particles immobilized with Bacillus subtilis coagulans. The present invention also provides a preparation method of the above-mentioned microbial water purifying agent for aquaculture water. The microbial water purifier for aquaculture water of the present invention adopts the bentonite as the immobilization carrier, takes the coagulated Bacillus subtilis as the immobilization object, and increases the value of the immobilized bacteria through the co-cultivation, the amount of immobilized bacteria is large, and the enrichment efficiency is high; all the materials used are non-toxic It is harmless, has no secondary pollution, has low cost, is convenient for transportation and storage, and can realize large-scale production.

The invention discloses a monitoring system for water quality acid-base property restoration for water resource environmental protection, which comprises an information acquisition module and a main control module connected through wireless communication. The information acquisition module comprises a fixed-point acid-base information acquisition unit, a mobile acid-base information acquisition and water body restoration unit and a water source acid-base information acquisition unit; the main control module comprises a data analysis unit, a comparison unit, an early warning unit and a restoration unit; the data analysis unit is used for receiving data acquired by the fixed-point acid-base information acquisition unit, the mobile acid-base information acquisition and water body restoration unit and the water source acid-base information acquisition unit and triggering the early warning unit when the data is abnormal; and the restoration unit controls the mobile acid-base information acquisition and water body restoration unit to restore the water body when the early warning unit performs early warning. According to the monitoring system, the overall acid-base property of the water body can be conveniently monitored, local pollution in the water body can be conveniently monitored, and the acid-base property change of the water body can be conveniently predicted and warned.

The invention discloses a membrane bioreactor unit for treatment of domestic sewage. The membrane bioreactor unit comprises: a reactor, which is filled with aerobic sludge, wherein the bottom of the reactor is connected with a sewage conveying pipeline; a stirrer, which is arranged in the reactor; a first membrane group and a second membrane group, which are arranged in the reactor and respectively located on both sides of the stirrer, wherein the upper and lower ends of the first membrane group and the second membrane group are respectively connected with corresponding external water suctionpumps and air blowers through corresponding membrane modules and pipelines, and each of the pipelines is provided with a valve; two baffle plates, which are respectively arranged between the stirrer and the first membrane group and between the stirrer and the second membrane group, wherein a first membrane group zone, a stirrer zone and a second membrane group zone are sequentially communicated with each other; and a sludge lift pump. The membrane bioreactor of the invention utilizes an aerobic MBR to treat domestic sewage, and realizes simultaneous effective removal of three pollutants, i.e.,organic matters, ammonia nitrogen and total nitrogen; and at the same time, an intermittent aeration system inside a membrane is employed to solve the problem of blockage of a membrane system, so theservice life of the membrane is prolonged.

The invention discloses an accurate phosphorus removal and dosing system for a sewage treatment plant. The system comprises a sewage treatment facility, a chemical dosing facility, a water quality andquantity monitoring instrument and a control device, wherein the sewage treatment facility comprises a water inlet pump room, an anaerobic tank, an anoxic tank, an aerobic tank, a secondary sedimentation tank, a middle lifting pump room, a reaction tank, a sedimentation tank, a filter tank and a water outlet channel which are connected in sequence; the chemical dosing facility comprises an anaerobic tank carbon source adding facility, an aerobic tank phosphorus removing agent adding facility and a reaction tank phosphorus removing agent adding facility; the water quality and quantity monitoring instrument comprises a water inlet total phosphorus online monitor, a water inlet electromagnetic flowmeter, a secondary sedimentation tank water outlet orthophosphate online monitor, a deep waterinlet electromagnetic flowmeter and a water outlet total phosphorus online monitor; the lift pump, the chemical dosing facility, and the water quality and quantity monitoring instrument of the systemare all connected with a control device; according to the system, biological phosphorus removal, synchronous chemical phosphorus removal and rear chemical phosphorus removal are organically combined,accurate addition of a phosphorus removal agent is achieved, the sewage phosphorus removal effect is improved, the phosphorus removal cost is reduced, meanwhile, the automation level of a sewage plantcan be improved, and the manual operation intensity is reduced.

The invention discloses a method for improving a black and odorous water body through coverage of modified zeolite for environmental dredging. The method comprises the steps of combing environmental dredging technology and modified zeolite coverage technology to restore contaminated sediment, improving the quality of the water body through simulation tests aiming at the contaminated sediment of the black and odorous water body and the environmental dredging technology and modified zeolite coverage technology, and obtaining optimum operation parameters. The method has the beneficial effects that a technical support is provided for thoroughly improving the water quality of contaminated rivers, and a theoretical direction is further provided for water body restoration engineering applicationof the contaminated rivers; the existence significance of microorganism during the water body restoration is discussed through investigation of the variation of the microorganism in the improvement ofthe quality of the water body, so as to analyze and judge the stability and restorability of the water body after restoration of the water body, and a scientific basis can be provided for the selection of schemes of water body restoration technology; the risk caused by artificial perturbation to the water body due to the restoration schemes is analyzed by taking sediment microorganism species andactivity as evaluation indexes, and a scientific basis is provided for the final implementation of the schemes of the water body restoration technology.

The invention discloses a device and a method for improving particle size distribution of byproduct crystalline salt of chemical strong brine, which are used for circularly heating, crystallizing, separating, drying and the like the chemical strong brine by arranging a circulating heater, a multi-effect evaporation system, a cyclone, a centrifugal machine, a drying bed and the like so as to obtainthe byproduct crystalline salt. By means of the device and method, the proportion of large-particle-size salt in the byproduct industrial salt can be increased, the proportion of powder salt is remarkably reduced by 20-30%, and particle size distribution is more uniform.

The invention discloses a Fenton reaction enhancer and application thereof. The Fenton reaction enhancer is prepared by a preparation method comprising the following steps: carrying out photocatalytic treatment on a hydrogen peroxide solution to obtain the Fenton reaction enhancer. The Fenton reaction enhancer provided by the invention is simple in preparation method, single in component, low in cost and free of secondary pollution, has very strong oxidability, and can improve the utilization rate and the reaction rate of hydrogen peroxide. When the Fenton reaction enhancer is used for treating wastewater, the use amount of hydrogen peroxide and ferrous iron can be reduced, the sludge amount is greatly reduced, and the application range is wide. The Fenton reaction enhancer can be used for pretreatment of high-concentration organic wastewater to improve the biodegradability of sewage, can also be used for advanced treatment of tail water, and can reduce COD and realize up-to-standard discharge.

The invention discloses a sewage treatment system, which comprises a cloud server, a programmable logic controller (PLC), a sewage treatment unit and a water quality analysis unit. The PLC is electrically connected with the sewage treatment unit; the cloud server is in wireless connection with the PLC and the water quality analysis unit; the water quality analysis unit is used for acquiring the sewage water quality parameters of all links during the sewage treatment process, and transmitting the sewage water quality parameters to the cloud server; the cloud server is used for storing the sewage water quality parameters and adjusting parameters, and distributing the corresponding adjusting parameters to the PLC according to the current sewage water quality parameters; the PLC controls the sewage treatment unit to execute corresponding action according to the adjusting parameters; the sewage treatment unit is used for staged-treating sewage according to the adjusting parameters until theemission standard is met. The sewage treatment system provided by the invention has the characteristics of high automation degree and deep sewage purification treatment degree.

The invention provides a device and method for treating oxidation-state nitrogen wastewater by using a combination of iron alloy and anaerobic ammonium oxidation bacteria. The device comprises a towerbody, a water inlet tank, a dosing tank, a water outlet and a gas outlet, wherein a plurality of wastewater treatment layers are arranged in an inner cavity of the tower body, and each wastewater treatment layer is composed of a supporting layer, an iron alloy filler layer and an anaerobic ammonia oxidation sludge granular layer. The wastewater treatment method comprises the following steps: a) feeding and distributing water; b) carrying out a reduction reaction on oxidation-state nitrogen; c) carrying out anaerobic ammonia oxidation; d) adjusting a pH value; e) conducting reactions a plurality of times. According to the device and the method for treating oxidation-state nitrogen wastewater in the invention, the iron alloy fillers reduce a part of oxidation-state nitrogen into ammonia, then the ammonia enters the anaerobic ammonia oxidation sludge particle layers, ammonia and nitrite ions are converted into nitrogen together through anaerobic ammonia oxidation bacteria; and complete removal of oxidation-state nitrogen in the sewage is guaranteed by arranging the multiple layers of the iron alloy fillers and the multiple anaerobic ammonia oxidation sludge particle layers.

The invention relates to the technical field of sewage treatment, in particular to a method for automatically adjusting Fenton process parameters based on linkage of PH and ORP, and the method comprises the following steps: step 1, performing pretreatment, and testing the COD value of wastewater; step 2, pumping the wastewater in the water quality regulating tank into a dosing mixing tank, adding an acid regulating agent, controlling the pH value to be 4.0-4.5, adding a ferrous reagent, and uniformly mixing; step 3, transferring to a catalytic reaction tank, adding hydrogen peroxide, uniformly mixing, controlling the pH value to be 4.0-4.5 and the ORP value to be greater than or equal to 450mV, and carrying out Fenton oxidation reaction for 6-8 hours; step 4, detecting the chromaticity of the sewage treated by the Fenton oxidation reaction, and adding an aluminum sulfate solution for regulation and control; step 5, transferring to a neutralization tank, adding a calcium hydroxide solution, uniformly mixing, and controlling the pH value to be 6.0-6.5; and 6, transferring to a sedimentation tank, adding PAM, uniformly mixing, standing and precipitating, and testing the COD value of the purified water. According to the method, COD in the water body can be effectively removed, so that the sewage treatment efficiency and treatment quality are ensured.

The invention relates to a deep bed underflow process for enhanced nitrogen removal advanced treatment of low-pollution sewage. According to the process, sewage is enabled to flow through a surface flow constructed wetland and a deep bed horizontal subsurface flow wetland in sequence; the surface flow constructed wetland comprises a first-stage surface flow wetland and a second-stage surface flowwetland; a nitrifying bacteria inoculant is added into the first-stage surface flow wetland; an aeration drop weir is arranged at the tail end of the first-stage surface flow wetland; wherein the deep-bed horizontal subsurface flow wetland is sequentially paved with a breathable impermeable sand layer, a filter layer, a denitrifying bacterium agent composite carbon source layer and an ecological gravel filler layer from bottom to top; tail water of the surface flow constructed wetland enters the deep bed horizontal subsurface flow wetland through a water collecting weir and a water passing culvert pipe and then is discharged through a water distribution channel, a subsurface flow wetland main body and a water collecting channel of the deep bed horizontal subsurface flow wetland. Accordingto the invention, the problems of nitrification reaction aeration of the subsurface wetland, lack of a carbon source in denitrification and low hydraulic load and large occupied area of the subsurfacewetland are solved, the stable operation of artificial constructed wetland system is ensured, and the low-pollution sewage is subjected to deep enhanced denitrification treatment.

A desalination system includes a desalination platform, a first skid disposed on a first deck of the desalination platform, the first skid including at least one of a first filtration unit configured to produce a first filtrate stream, and a first permeate unit configured to produce a first permeate stream, a first interconnecting pipework coupled to the first skid, and a first pipework support disposed on the first deck, wherein the first interconnecting pipework is disposed on the first pipework support.