75results about How to "Effluent water quality up to standard" patented technology

A treatment process for landfill leachate, specifically comprising the following steps: (1) first adding a coagulant to the landfill leachate, coagulating and filtering to remove tiny fibers in the leachate; (2) filtering the leachate Enter the adjustment tank; (3) The leachate from the adjustment tank enters the evaporation system, and after evaporation, water and ammonia boil out of the leachate into steam, which becomes distilled water after condensation and is discharged, and then enters the ion resin exchange system, and the distilled water passes through the resin When the ion exchange reaction occurs, the ammonium is removed, and the ammonia nitrogen index of the distilled water is discharged after reaching the standard; the non-condensable gas and a small amount of non-condensable steam in the steam are discharged from the evaporation system and enter the absorption tower; (4) The leachate from the regulating tank enters the Evaporation system, the remaining part of the leachate after evaporation is pollutants that cannot be turned into gas and escape the evaporation system. After being concentrated into a concentrated liquid, it is discharged from the evaporation system and can be recharged to the landfill. The process is thorough and the operating cost is low.

The invention discloses a spinning printing and dyeing waste water reclamation method, a device and the application thereof. The method comprises the steps of: filtering spinning printing and dyeing waste water; sequentially carrying out homogenizing, equalizing quantity and primary sedimentation on filtrate; adding sodium chloride into waste water supernate, and evenly mixing for indirect electro-catalysis oxidation; sequentially evenly mixing the waste water treated by indirect electro-catalysis oxidation with basic aluminium chloride and polyacrylamide; removing the precipitated supernate, and sequentially treating by activated carbon adsorption and reverse osmosis; removing trace organic chloride generated in the electrolytic process and the rest COD and color; and obtaining recyclable water resource. The device for realizing the method comprises a grate, a regulating reservoir, a sealed electrolytic cell, a flocculation tank, an inclined tube sedimentation tank, a sand filter tank, an active carbon filter, an intermediate water tank, a reverse osmosis unit, a clear water reservoir, a brine tank, a chlorine absorbing tank, a sludge concentration tank and a plate-and-frame filter press. The invention can effectively treat spinning printing and dyeing waste water, and has the advantages of high treatment efficiency, stable effluent quality, simple technological process and the like.

The invention relates to a deep treatment process of landfill leachate. The effluent of landfill leachate subjected to biochemical treatment is used as influent. The process adopts a coagulative precipitation tank, an oxidation tank, an anaerobic biological filter and a membrane treatment device and comprises the following steps of: (1) removing partial organic matter through coagulative precipitation to reduce chroma; (2) further removing refractory and non-biochemical organic matter with an oxidizer formed by ozone, and the like and improving the biodegradability of the effluent; (3) removing SS (Suspended Solid), organic matter and nitrate in the leachate through an anaerobic filter; and (4) ensuring that the effluent stability of the whole system through a membrane separation technology reaches the emission standard and canbe recyclable. The process has the advantages of lower operation cost, stable effluent, less quantity of generated concentrated liquid, less salt content in theconcentrated liquid, and the like, and the process of biochemistry and materialization of the pretreatment, which is used before using the membrane method, can prolong the service life of the membrane.

The invention discloses a treatment process for bearing production wastewater. The treatment process comprises the following steps: firstly, enabling bearing production wastewater to enter an oil-separation adjusting tank; separating floating oil in the wastewater and agitating uniformly; then lifting the wastewater into a cavitation air floatation system to remove suspension matters and petroleum in the wastewater; conveying the wastewater treated by the cavitation air floatation system into an iron-carbon micro-electrolysis reactor and carrying out a Fenton reagent and iron-carbon micro-electrolysis combined oxidation reaction to reduce chemical oxygen demand and improve the ratio value of biochemical oxygen demand / chemical oxygen demand of the wastewater; conveying the wastewater reacted in the iron-carbon micro-electrolysis reactor into a coagulation precipitation tank, adjusting the pH (Potential of Hydrogen) and carrying out a coagulation and flocculation reaction; enabling reacted liquid supernatant to flow into a middle water pond to sequentially enter a UASB (Up-flow Anaerobic Sludge Bed / Blanket) anaerobic reaction tank, a CASS (Cyclic Activated Sludge System) reaction tank and a water discharging tank and filtering by a multi-medium filter; discharging after the water reaches standards. The treatment process is simple in management and good in wastewater treatment effect; a sludge expansion problem which usually and easily occurs in a traditional active sludge method is overcome; the water can be discharged after the water quality reaches the standards and the treatment process is good for protecting the ecological environment.

The invention provide an anaerobic ammonia oxidation-based low-carbon nitrogen ratio urban sewage denitrification system and treatment process. The system comprises a biological adsorption unit, an anaerobic ammonia oxidation unit, a nitrosation unit, a membrane technology unit and an anaerobic digestion unit, wherein the biological adsorption unit comprises an aeration tank and a settling pond; the aeration tank is connected with the settling pond; the settling pond is connected with an anaerobic ammonia oxidation tank; the anaerobic ammonia oxidation tank is connected with a nitrosation tank provided with a membrane component; the anaerobic digestion unit is an independent sludge treatment unit. The system is short in process flow, short in system startup time, stable and high-efficiency in denitrification performance, standard reach of effluent total nitrogen, low in operating energy consumption and material consumption and low in residual sludge yield. Organic matters in the urban sewage are subjected to biological adsorption removal by utilizing biological adsorption, sludge which is discharged through biological adsorption and is enriched in organic matters is subjected to medium-temperature anaerobic digestion treatment to produce biogas to be used for heating and heat preservation of the medium-temperature anaerobic digestion tank and the low-temperature anaerobic ammonia oxidation tank, the organic matters in the urban sewage can be recycled, and the operating energy consumption of the process is further reduced.

The invention discloses a method for recovering sodium chloride and glycerin in glycerin-containing high-salinity organic wastewater, which relates to the treatment of organic wastewater. The method comprises the following steps that: 1) the organic wastewater passes through macroporous resin, so that glycerin molecules in the wastewater are adsorbed, and macroporous resin with the glycerin molecules and sodium chloride-containing effluent are obtained; 2) the sodium chloride-containing effluent obtained in the step 1) is evaporated and concentrated in an evaporator, thus obtaining a sodium chloride concentrated solution; 3) the sodium chloride concentrated solution obtained in the step 2) is crystallized, thus obtaining solid sodium chloride and mother liquor left after crystallization and filtration; 4) after being diluted and biochemically treated, the mother liquor is discharged; 5) the macroporous resin treated in the step 1) is washed by using a desorption agent so as to elute the glycerin adsorbed on the macroporous resin to obtain glycerin-containing eluant and the macroporous resin subjected to eluting is put into the step 1) for cyclical utilization; 6) the glycerin-containing eluant obtained after desorption in the step 5) is distilled so as to obtain the desorption agent and crude glycerin, and the desorption agent is put into the step 5) for cyclical utilization; and 7) the crude glycerin obtained in the step 6) is fractionated, thus obtain a finished glycerin product and distillation residue liquid.

Disclosed is an automatic control sewage treatment system with variable process and treating capacity. The system is characterized in that each group of sewage treating pond is divided into five cases, namely a regulating tank, a materialization tank, an anaerobic tank, an aerobic tank and a precipitation filter tank, in the same engineering project, a plurality of sewage treatment processes can be comprehensively utilized, due to the fact that 'methods are applied according to situation', sewage can be effectively treated, effluent water quality can reach the standard, one group or a plurality of groups of sewage treating ponds which are parallelly combined are utilized to treat the sewage simultaneously so as to adapt to the change of sewage treating capacity, the problem that a second-stage construction or a new project is required to be prepared caused by addition of treating capacity is solved, and extra investment is saved. According to the automatic control sewage treatment system with the variable process and treating capacity, a full process of sewage treating is automatically monitored and controlled, the treating time is saved, accurate treating data is obtained, on the premise of the lowest operating cost, the best treating effect is obtained, and the long-term stable operation of the sewage treating project can be guaranteed. Compared with conventionally sewage treating processes, the system has the advantages that the operating cost can be reduced by 30%-50%, the land can be saved by about 50%, and the one-time investment can be saved by about 30%.

The invention discloses a treatment method of high concentration and multi-class heavy metal waste liquid and the device used for realizing the method, belonging to the technical field of waste water and liquid treatment. The main technology is oxidation-reduction, sedimentation and filtration and magnetic absorption. Firstly, the waste liquid is pumped into the oxidation-reduction pool, and the reagent for the heavy metal ion is put into the oxidation-reduction pool; secondly, the PH value is readjusted after reaction and the water enters into the observation pool; if the effluent water is not up to the standard, the effluent water is reflowed into the oxidation-reduction pool for further treatment; if the concentration of heavy metal ion in the waste liquid exceeds the designed concentration, part of the water in the observation pool is reflowed to maintain the concentration; if the concentration of heavy metal ion exceeds certain value or the ion classes are complicated, the high-efficiency absorption system is started for further absorbing and removing the remained heavy metal ion. The treatment method has the advantages of adopting PLC intelligent reagent feeding system, reducing reagent consumption, deacidizing and depositing Cr<6> in alkali condition, saving consumption of acid and alkali reagent and operation expense, ensuring standard quality of effluent water of the system in extreme condition with novel high-efficiency magnetic adsorbent. The device has the advantages of ability of treating the waste liquid with extremely high concentration and multi-class heavy metal, simple technology, good quality of effluent water, compact arrangement of device and convenient automatic control.

The invention provides a method and device for modular programmed treatment of a heavy metal waste liquid so as to solve the problems that existing heavy metal waste liquid treatment devices occupy large floor space, the process is long, the operation is complicated, the control is tedious and the effluent water quality is not up to the standard. The device for modular programmed treatment of a heavy metal waste liquid consists of: a pretreatment system, a comprehensive reaction system, a cache system, a solid-liquid separation system, an observation system, a drug adding system and a modular programmed system. After the heavy metal waste liquid enters the device, batch treatment is carried out according to set parameters of modular programmed equipment, water feeding, drug adding, water discharge and online detection are automatically controlled, and the effluent water can meet the national discharge standard. The device for modular programmed treatment of the heavy metal waste liquid provided by the invention has the advantages of small floor space, simple process, strong applicability, simple operation, easy control, low operation cost, good treatment effect, wide application range, and easy popularization and use in projects.

The invention relates to a method for deeply treating nonbiodegradable sewage which combines a membrane filtration technology and a catalytic ozonation technology. The method comprises the steps of coagulating, flocculating, membrane filtration and ozonation. Compared with the prior art, the method for deeply treating nonbiodegradable sewage is capable of improving the efficiency of removing pollutants, guaranteeing the effluent quality to reach the standard, fully saving medicament adding amount and reducing operation cost, has excellent economical efficiency, and is suitable for the situation of China and worthy of popularization.

The invention discloses a method for treating landfill leachate. The method comprises the following steps of: feeding the landfill leachate into an adjustment tank first, sequentially feeding the landfill leachate into a biological contact oxidation pond, a low-oxygen aeration tank, a nitrosation reaction tank, an anaerobic ammonium oxidation reaction tank and a microwave treater, finally feeding the landfill leachate into a separator, performing precipitation separation to separate active carbon obtained after microwave treatment from the outlet water of the landfill leachate, and then discharging the outlet water which meets the standard. The technology for treating the landfill leachate saves energy and is high in efficiency and low in consumption; and by the method, pollutants such as organic pollutants, nitrogen (N) and phosphorus (P) can be effectively removed, and the environmentally acceptable treatment and discharge of the landfill leachate can be realized finally.

The invention relates to a deep treatment process of garbage percolate biochemical effluent. The deep treatment process of the garbage percolate biochemical effluent comprises the following steps: adding a flocculating agent into the garbage percolate biochemical effluent, entering a coagulative precipitation tank, mixing uniformly, standing and precipitating; enabling the precipitated garbage percolate to enter a low-temperature plasma reactor to remove most of organic matters from the garbage percolate; enabling the garbage percolate treated by the low-temperature plasma reactor to enter a biological aerated filter to remove the residual organic matters from water; enabling one part of the percolate treated by the biological aerated filter to return the to-be-treated garbage percolate biochemical effluent through a reflux pipeline, adding the flocculating agent into the coagulative precipitation tank, and repeating the cycle; and performing up-to-standard discharge on the other part of the percolate through a discharge pipe of the biological aerated filter. The process is used for treating the percolate biochemical effluent, so stable and up-to-standard discharge can be realized and concentrated liquid is avoided.

The patent relates to the field of wastewater treatment and specifically discloses a treatment process of livestock and poultry breeding wastewater. The method of the treatment process is simple in operation, the occupied area of every device is small, and all the devices are connected to form an integrated treatment device of the livestock and poultry breeding wastewater according to treatment processes of the livestock and poultry breeding wastewater; meanwhile, ammonia nitrogen in the livestock and poultry breeding wastewater can be recycled as a raw material of a nitrogen-containing product, and all solid waste and sludge at a biochemical section are made into an organic bio-fertilizer used as an ecological fertilizer of crops through harmless biological fermentation. According to thescheme, COD (chemical oxygen demand) in the livestock and poultry breeding wastewater can be recycled, and the livestock and poultry breeding wastewater is treated, so that the livestock and poultry breeding wastewater can reach a discharge standard.

The invention provides a functional green roof type sewage regeneration ultra-purifying treatment technology. The technology comprises the following steps: pre-treating sewage in advance, removing suspended solids through a grating chamber C1 and homogenizing through a regulating reservoir C2; guiding the pretreated sewage to flow by an aerobiotic pond O1, an anoxic pond A1, an anaerobic pond A2 and an aerobiotic pond O2 in turn, for performing enhanced OAAO treatment; guiding the sewage after enhanced OAAO treatment to flow by an anoxic pond A3, an aerobiotic pond O3, an anoxic pond A4 and anaerobiotic pond O4 in turn, for performing multi-level AO treatment; guiding the sewage after multi-level AO treatment to flow by a filler-biological compound denitration filter chamber B1 and a phosphorous removal filter chamber B2 in turn, for performing ultra-purifying treatment; adopting a real-time fuzzy control system for monitoring quality change of entering and discharged water and remotely adjusting internal running state of the technology. A treatment method with a combination of biological, chemical and ecological treatment is adopted by the invention; the treated discharged waterreaches surface water IV-class standard; the functional green roof type sewage regeneration ultra-purifying treatment technology has a series of advantages of resistance to impact load, good treatmenteffect, running stability, low cost, and the like, and is suitable for ultra-purifying treatment of domestic wastewater.

The invention provides an integrated water treatment equipment combining a bio-membrane with an electric filter. The integrated water treatment equipment comprises a sewage regulation chamber, a bio-membrane method sewage treatment chamber and an electric filtration treatment chamber, wherein a screen mesh is respectively arranged at a water inlet and a water outlet of the sewage regulation chamber; bio-membrane fillers are laid in the bio-membrane method sewage treatment chamber; an aeration head is laid at the bottom of the bio-membrane method sewage treatment chamber; multiple sets of electric filtration devices arranged in parallel are arranged in the electric filtration treatment chamber; an inclined flow mud fender is arranged at the water inlet of each set of the electric filtration device; a micron reticulated ruthenium titanium anode and a stainless steel microporous cathode are arranged in each set of the electric filtration device. The integrated water treatment equipment provided by the invention removes pollutants with a bio-membrane method; the membrane method has characteristics of relatively large biomass, long sludge age and less residual sludge; the electric filtration treatment chamber is mainly used for sludge-water separation; each electric filtration device is composed of a microporous anode and cathode, and has effects of filtration, gas electrolysis self-cleaning, microorganism killing and the like after application of voltage.

The present invention relates in general to municipal wastewater treatment, and in particular, to a new biological fluidized bed process with high concentration powder carriers used for the treatment of municipal wastewater, wherein the process comprises: flowing the wastewater through a coarse screen and a lifting pump firstly, lifting to a fine screen and grit chamber, and then entering a HPB biochemical tank; dividing the HPB biochemical tank successively into an anaerobic zone, an anoxic zone, an aerobic zone and a concentrated separation zone along the flow direction of the wastewater, adding a compound powder carrier to the anaerobic zone, the anoxic zone and the aerobic zone respectively, and stirring and mixing into a mixture; flowing the mixture into the concentrated separation zone and concentrating and separating, returning the concentrate back to the anaerobic zone; discharging the supernatant from the concentrated separation zone and successively transporting through a high-efficient clarification tank, a filter tank and a disinfection tank to be purified; transporting the discharged excess sludge to a cyclone separation and recovery system; the separated compound powder carrier will be recycled to HPB biochemical tank. The HPB process in the present invention is a highly integrated municipal wastewater treatment process, in which only one lifting operation is required. In addition, it has a small land area, a low operating energy consumption and a high treatment efficiency.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a treatment technology of reinjecting heavy oil wastewater into a low-permeability reservoir. The treatment technology specifically comprises the following steps of multi-effect oil removing treatment: removing oil spill, dispersed oil and partial suspended matters in wastewater; dual-effect air flotation treatment: removing emulsified oil and colloid type suspended matters in the wastewater; activated sludge treatment; sedimentation treatment: carrying out sludge-water separating; bio-contact oxidation treatment: further reducing organic matters and removing extracellular polymeric substances; micro-flocculation and dual-medium filtration treatment; membrane filtration treatment. After the wastewater passes through a membrane filtration device, the content of oils in the wastewater is less than 1.0mg / L, the content of suspended matters is less than 1.0mg / L, the median diameter of the suspended matters is less than 1.0mum, the corrosion rate is less than 0.076mm / a, and all indexes are lower than A1-stage water quality standard required by the low-permeability reservoir. The treatment technology disclosed by the invention has the advantages that the treatment technology is reasonable, the operation is simple, and the treatment effect is stable; crude oil can be recycled; the cleaning period and the service life of a membrane are long; meanwhile, and the insufficient injection problem of the low-permeability reservoir is solved, and the resource utilization of the wastewater is realized, so that the treatment technology can be widely used for reinjecting the heavy oil into the low-permeability reservoir.

The invention discloses a landfill leachate treatment method. The method comprises the following steps: primary sedimentation; oxidation and sedimentation: a supernatant flowing out of a primary sedimentation tank enters a first oxidation tank, hydrogen peroxide and ferrite are added to generate hydroxyl radicals, the product enters a first sedimentation tank for sedimentation, the supernatant enters a second oxidation tank, iron powder and persulfate are added to generate sulfate free radicals, the sulfate free radicals enter a third oxidation tank, hydrogen peroxide is added into a third oxidation tank to generate hydroxyl free radicals, and a leachate in the third oxidation tank enters a second sedimentation tank for sedimentation; anaerobic reaction; MBR biochemical treatment; nanofiltration, and reverse osmosis. The method has the advantages that the biodegradability of the landfill leachate can be improved when the method is used for treating the landfill leachate, removal of CODthrough nanofiltration and reverse osmosis advanced treatment is better facilitated, the blocking problem occurring during subsequent advanced treatment such as reverse osmosis can be prevented, andthe final treated water quality of the landfill leachate reaches the standard.

The invention discloses portable equipment and a process for producing water by sea water desalination, belonging to the technical field of water treatment equipment and method. The portable equipment comprises a water taking module, an ultrafiltration module, a reverse osmosis module, a hardening and tempering module and a sterilizing module which are connected in sequence, wherein the ultrafiltration module comprises a group of ultrafiltration units which are mutually spliced; each ultrafiltration unit comprises a casing, a membrane sealing cover, membrane silks and a center tube; each membrane sealing cover is arranged inside the corresponding casing, and an inner cavity of each casing is divided into an upper water producing cavity and a lower filtering cavity; a discharging opening communicated with the center tube is formed in the top of each casing; a water producing port communicated with the upper water producing cavity is formed in the upper part of each casing; a water inlet communicated with the corresponding lower filtering cavity is formed in the lower end of each casing. The device disclosed by the invention is small in size, convenient in carrying and high in system adaptability; the water quality of incoming water and lower outgoing water of polluted seawater can meet the requirements of domestic drinking water.

The invention belongs to the field of sewage treatment equipment, and discloses integral domestic sewage treatment equipment. The equipment comprises a tank body and also comprises an equipment zone, wherein the interior of the tank body is divided into a feed water hydrolyzing area, an aerobic area and a settling area. The equipment is characterized in that the equipment zone is arranged outside the tank body, the feed water hydrolyzing area comprises a water passage circling the interior of the tank body, the aerobic area and the settling area are arranged at the water pipeline, a submersible sewage pump and an aerating apparatus are arranged at the middle bottom part of the aerobic area, and a convey port of the submersible sewage pump is communicated with the water feed end of the water passage through a pipeline. The structural design of the tank body is more scientific and reasonable, so that the equipment has a better sewage treatment effect, is more efficient, saves more energy, and is simple and convenient to maintain by adopting the tank body of the same volume. Furthermore, the invention also provides a use method of the integral domestic sewage treatment equipment, which is characterized by comprising a step of treating the sewage with the integral domestic sewage treatment equipment.

The invention discloses a 3,4-dichloroaniline wastewater treatment system. The system is characterized by comprising an adjusting tank, a precision filtering device, a resin adsorption device, a reaction treatment area sludge treatment device, an aeration device, a dosing device and a control device, the precision filtering device is positioned on the right of the adjusting tank; the resin adsorption device is positioned on the right of the precision filtering device; wherein the reaction treatment area is located on the right side of the resin adsorption device, the sludge treatment device islocated on the right side of the reaction treatment area, the dosing device and the control device are located on the outer side of the reaction treatment area, the aeration device is installed on the inner side of the reaction treatment area, and the reaction treatment area comprises a micro-electrolysis area, a Fenton oxidation area and a coagulative precipitation area. The system is stable inoperation, low in use cost and convenient to manage, 3,4-dichloroaniline in the wastewater can be recycled through the resin adsorption device, the raw material loss is reduced, organic matter in thewastewater is treated through microelectrolysis and a Fenton oxidation reaction, the treatment effect is good, the effluent quality reaches the standard, and environmental pollution is reduced.

The invention discloses novel polyvinyl chloride (PVC) mother solution treatment method. The PVC mother solution is passed through a primary cooling and a secondary cooling to an anaerobic pool and an aerobiotic pool to apply biochemical treatment, then the product is put into a coagulating sedimentation pool to settle the sludge, at last, the product is filtered by submerged ultrafiltration, so as to produce the qualified water. The novel PVC mother solution treatment equipment has a good water treatment effect and high operating stability, can be used for effectively treating the PVC mother solution for a long time, and is relatively low in operating cost and high in quality of output water.

The invention provides a green roof partition type multilevel AO integrated wastewater treatment technology. A three-level A / O integrated treatment tank with a modified artificial wetland on the top of the tank is adopted. The technology comprises the following steps: guiding wastewater into a regulating reservoir for homogenizing; treating by guiding the wastewater to flow by a first-level A1 / O1treatment tank, a second-level A2 / O2 treatment tank and a third-level A3 / O3 treatment tank in turn; adopting a real-time fine regulation and control system for real-time monitoring and remote control:adopting a DO and pH monitor and an ORP monitor for monitoring internal state of treatment tank in real time, adopting a NH4+-N sensor, a NO3--N sensor and a TP sensor for monitoring effluent qualityof each-level treatment tank, transmitting the collected signals to a PLC control system, calculating real-time control variable according to a running procedure and online controlling the running state of system. The technology provided by the invention adopts a multilevel AO integrated process, requires no backflow of mixed liquid and has the advantages of less floor area, low investment, simple and flexible running, low energy consumption, high efficiency, convenience in maintenance, and the like.

The invention discloses a tobacco factory sheet wastewater treatment process, which relates to the technical field of sewage treatment, and comprises the following main steps: mechanical grid treatment, sieve bend, coagulation reaction tank, primary sedimentation tank, air floatation machine treatment, pre-acidification tank treatment, IC anaerobic reactor treatment, A / O biochemical tank treatment, secondary sedimentation tank treatment and advanced treatment system. The invention can well solve the problems of low treatment efficiency, backward technology, high operation cost, easy standard exceeding, poor stability, high management difficulty and the like in the existing treatment process, and ensures that the effluent quality reaches the standard.

The invention discloses a modular micro-polluted water purification cabinet. The cabinet comprises a cabinet body, wherein a water treatment equipment bin, an electrical control bin and a temperatureand humidity adjusting bin are arranged in the cabinet body; water treatment equipment is placed in the water treatment equipment bin; a control cabinet is arranged in the electric control cabin; a temperature and humidity adjusting device is arranged in the temperature and humidity adjusting bin; the three bins are separated by clapboards or barriers; ventilation openings are formed between the temperature and humidity adjusting bin and the water treatment equipment bin and between the temperature and humidity adjusting bin and the electrical control bin, and are used for adjusting the temperature and humidity of the water treatment equipment bin and the electrical control bin; temperature sensors and humidity sensors are installed in the electrical control bin and the water treatment equipment bin and are electrically connected with the input end of a controller; and the output end of the controller is electrically connected with the temperature and humidity adjusting device. The water treatment equipment and the control cabinet are isolated from the surrounding environment, and the temperature and humidity in the cabinet are adjusted within proper ranges, so that the cabinet canwork normally in various severe environments.

The invention relates to a sludge discharging method of a sedimentation tank. The sludge discharging method comprises the following steps that a sedimentation tank is provided, the sedimentation tankcomprises a tank body used for containing sewage, a plurality of sedimentation pieces and a sludge discharging pipe, the sedimentation pieces are arranged in the tank body in the depth direction of the tank body and are used for dividing the inner space of the tank body into a plurality of water passing spaces, and the sedimentation pieces can rotate between a first position and a second position;when the sedimentation pieces are positioned at the first position, the inclination angle of the sedimentation pieces relative to the tank body is marked as a first angle, so that mud in sewage willprecipitate onto the sedimentation pieces when the sewage flows through the water passing spaces; when the sedimentation pieces are located at the second position, the inclination angle of the sedimentation pieces relative to the tank body is marked as a second angle, so that the deposited mud is separated from the sedimentation pieces by virtue of gravity and falls into the bottom of the tank body; the sludge discharging pipe is arranged at the bottom of the tank body; and after the sedimentation pieces rotate to the second position, the deposited mud settled to the bottom of the tank body and sewage water body are discharged out of the tank body through the sludge discharging pipe at regular intervals by means of negative pressure at the same time.

The invention discloses a household type buried unpowered integrated composite biological sewage treatment device and process. The device comprises an anaerobic baffled reactor with a water inlet, wherein a composite biological trickling filter is arranged in the anaerobic baffled reactor; a water outlet end of the anaerobic baffled reactor communicates with a water inlet end of the composite biological trickling filter; sewage enters the anaerobic baffled reactor and the composite biological trickling filter in sequence through gravity plug flow and can automatically operate; and a water outlet is formed in the composite biological trickling filter. In the whole process, the sewage can be automatically operated through the gravity plug flow; practical sewage treatment technologies are highly concentrated, so that the device is economic and practical, and simple and convenient to operate and maintain, no power equipment is required, the purpose of saving resources is achieved, and thetreatment effect on pollutants is good, therefore, the device is suitable for promotion and application in treatment of scattered rural domestic sewage.

The invention relates to a landfill leachate treatment method. The method includes the following steps of S1, conducting at least one time of denitrification-nitrification treatment on leachate; S2, filtering the leachate obtained after the denitrification-nitrification treatment through a tubular film; S3, conducting film filtering deep treatment on the water output by the tubular film; S4, conducting denitrification treatment on filtrate obtained after the film filtering deep treatment through a resin adsorption method to obtain up-to-standard discharge liquid. By means of the landfill leachate treatment method, the resin adsorption treatment step is added in the conventional landfill leachate treatment process, the aim of removing the total nitrogen in the output water can be realized,it is ensured that the water quality of the output water is up to standard, and the environmental pollution risk is avoided; the agent dosage of a leachate biochemical treatment mechanism is reduced,and the operation cost is greatly reduced.

The invention discloses a low-energy-consumption processing device for self-circulation sewage. The processing device comprises a water inlet tank, a regulating tank and a sand filter. The sand filter is connected in parallel between the water inlet tank and the regulating tank, the water inlet tank is connected with the sand filter through a reflux pump, and a check valve only allowing water to enter the water inlet tank from the regulating tank is arranged between the water inlet tank and the regulating tank; a water distributor for distributing sewage evenly to a sand filter surface layer is arranged at the top of the sand filter; a water collector for collecting water after sand filtration is arranged at the bottom of the sand filter; the height of the sand filter is higher than that of the regulating tank; the water level of the regulating tank is higher than that of the water inlet tank; and a water overflow weir for controlling the water to rise is arranged on the regulating tank. The processing device is economical, simple and convenient, efficient and suitable for processing rural domestic sewage rural.

The invention relates to the technical field of wastewater treatment, and discloses an anaerobic microbial filler, which comprises a supporting frame, a second filler block, and a plurality of first filler blocks, each first filler block is articulated with the supporting frame, each first filler block is obliquely fixed on the second filler block, both the second filler block and the plurality offirst filler blocks need to be soaked in solution for 2 to 3 months, and the solution is prepared from the following components in part by weight: 8 to 12 parts of nitric acid, 0.5 to 1.5 parts of phosphoric acid, 0.8 to 1.2 parts of ferric oxide, 0.8 to 1.2 parts of calcium sulphate, 0.8 to 1.2 parts of magnesium oxide, 0.8 to 1.2 parts of potassium oxide and 135 to 145 parts of water. In orderto solve the problem existing in the prior art that environmental accidents can take place due to substandard effluent quality because microbial filler cannot continuously provide trace elements. According to the solution, by soaking both the second filler block and the plurality of first filler blocks in the solution, trace elements can be continuously replenished to the filler bodies, consequently, effluent quality can up to standard, and the occurrence of environmental accidents can be prevented.