52results about How to "Effluent water quality is stable and up to standard" patented technology

The invention relates to a comprehensive treatment method for high-salt high-COD wastewater. The method comprises the following steps that (1) wastewater enters an adjustment tank through a grid, thepH is adjusted, effluent of the adjustment tank enters a coagulating sedimentation tank, and a flocculant is added for coagulating sedimentation; (2) effluent of the coagulating sedimentation tank enters an ultrasonic electrocatalysis oxidation device for treatment; (3) effluent of the ultrasonic electrocatalysis oxidation device enters an electrodialysis device for treatment; (4) through electrodialysis desalination, fresh water enters an ABR anaerobic baffle plate reactor for treatment; (5) effluent of the ABR anaerobic baffle plate reactor enters a BSBR reactor, and a salt-tolerance microorganism reinforcement salt-containing wastewater is added to the BSBR reactor for biochemical treatment; (6) effluent of the BSBR reactor enters an ozone reaction device for treatment; (7) ozone effluent passes through an adsorption filtering device and is reused or discharged at last. The method has the advantages that the technology is reliable and high in stability, the rate of removing pollutants is high, and the water quality of the effluent stably reaches the standard, and the method is suitable for comprehensive treatment of the high-salt high-COD wastewater.

The invention discloses a method for treating high-concentration chemical wastewater. The method comprises a pre-treatment step, an up-flow type anaerobic sludge bed treatment step and a contact oxidation treatment step in sequence. The method has the innovation point that the pre-treatment step comprises an iron-carbon micro-electrolysis step and a coal / natural indirect liquidation oxidization step; the contact oxidation treatment step comprises an anaerobic treatment step and a two-stage aerobic treatment step; the first-stage aerobic treatment step in the two-stage aerobic treatment step comprises an anoxic and biochar-process activated sludge combined treatment step. According to the method for treating high-concentration chemical wastewater, the operation feasibility is improved, the labor intensity is reduced, the filler is enabled to be in a suspension state without being blocked and plugged by controlling the grain size of the filler and operation parameters of an aeration system and an inner circulating system, the iron powder and the carbon powder are released to the sewage in a facilitated mode, the gas phase, the liquid phase and the solid phase are completely contacted, and the treatment efficiency is improved.

The invention provides a big data intelligent analysis digital management and control platform based on a sewage treatment plant, which can solve the problems of simulation and production operation optimization of a mechanical equipment system and a microbial system. Virtual simulation is carried out on the production process of the sewage treatment plant, a dynamic mathematical model is established to simulate microbial growth, reproduction, attenuation and death processes and mechanical equipment operation and faults in various technological processes of the sewage treatment plant, the flow and the effluent quality of each technological unit reactor are solved and simulated, and in a certain time range, the production process of the sewage treatment plant is simulated. Time derivation is conducted on the concentration equations and the flow equations of all the components through the boundary conditions, and the effluent concentration and the effluent flow of each component in the corresponding time are obtained. The method solves the problems that an existing sewage treatment plant is tedious in process adjustment process, the optimal result is not easy to achieve, and the capability of optimizing the operation process according to the change of incoming water pollutants in real time does not exist.

The invention discloses a treatment method for wastewater containing high-concentration suspended solids. The treatment method comprises the following steps of 1, multi-stage hydraulic cyclone pretreatment of the wastewater, wherein the wastewater containing the high-concentration suspended solids is separated by using multi-stage hydraulic cyclone centrifugal force, the solid particles of different sizes are pretreated, overflowing liquid enters the next link, and sediment is recycled; 2, multi-point flocculating settling concentration of the overflowing liquid, wherein the overflowing liquidobtained in the step 1 is introduced into a radical sedimentation basin, a flocculating agent is added into an additive adding pipe of the overflowing liquid at multiple points, by using the naturalvertical turbulent mixing effect of water flow, sufficient and quick mixing of the flocculating agent is achieved, concentrated slurry and supernatant water are obtained, and the supernatant water isrecycled; 3, multiple dehydration of the concentrated slurry, wherein the concentrated slurry obtained in the step 2 is subjected to multiple dehydration, such as direct filter pressing, tympanic secondary squeezing and full-flow high-pressure blowing of filter residues. Efficient solid-liquid separation and quick dehydration of the slurry are achieved, the outlet water quality meets the dischargestandards of the Integrated Wastewater Discharge Standards (GB8978) or the requirements of production recycling, the water content of a slurry cake is low, and the requirements for clean transportation are met.

The invention relates to the technical field of MBBR (Moving Bed Biofilm Reactor) sewage treatment, and discloses a high-standard effluent process with low operation cost. The process comprises an anaerobic phosphorus release area, a static settling area, a phosphorus removal flocculation reaction area, a phosphorus removal settling area, a denitrification phosphorus removal anoxic area, a denitrification nitrogen removal anoxic area, a phosphorus uptake nitrification aerobic area, a primary settling area, a nitrification aerobic (carrier) area, a denitrification oxygen elimination (carrier) area, a secondary settling area, a quartz sand filtering area, a water outlet area and a disinfection area which are sequentially connected from front to back, the problems that a traditional sewage plant wastes a carbon source and the treatment cost is increased due to manual addition of the carbon source in the later stage are solved; the total phosphorus in the supernatant with higher phosphorus concentration generated by phosphorus release of phosphorus release bacteria in an anaerobic zone is removed through side-flow dosing precipitation, so that the probability that the total phosphorus in the effluent is not up to the standard due to entering a subsequent treatment structure is avoided; and the influence of excessive medicament and nitrate nitrogen on the phosphorus release and phosphorus absorption capacity of the phosphorus release bacteria is avoided.

The invention discloses a filter backwashing control method, and belongs to the field of filter backwashing. The method comprises the following steps: S1, collecting a first state parameter of a filter tank, and optimizing the first state parameter to obtain an optimized filter period; S2, acquiring a second state parameter of the filter tank and a corresponding backwashing parameter group, and optimizing the second state parameter and the backwashing parameter group to obtain an optimized backwashing parameter group; and S3, carrying out backwashing control on the filter tank according to the optimized filter period and backwashing parameter group. The method has the beneficial effects that: the filtering period and backwashing parameters of the filter tank are optimized, so that the backwashing process of the filter tank is optimized and controlled, the water yield is further improved, the energy consumption and the production cost are reduced, and the refined control of the filtering link is realized.

The invention discloses a method for deeply removing organic phosphorus in waste water. The method comprises: under the condition that the pH value is 7.0-9.0 and a catalyst exists, adding ozone into the waste water, optionally adding a pro-oxidant to carry out an oxidation reaction; then adding a phosphorus removal agent to carry out coagulation and precipitation. According to the method of the present invention, the reaction is carried out in the range of pH 7.0-9.0, the reaction conditions are mild, and the operating cost is low; the organic phosphorus-containing wastewater is oxidized by using a strong oxidant to effectively remove the organic phosphorus in the wastewater, and then combined with With the addition of phosphorus removal agents, the removal rate of organic phosphorus is greater than 99%, which can reduce the total phosphorus in wastewater to below 0.3mg / L; it solves the problem that it is difficult to completely remove organic phosphorus and the total phosphorus cannot meet the standard, and can be widely used in various In the standard treatment of organic phosphorus-containing wastewater.