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

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 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 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 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 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 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 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.