787 results about "Biotreatment" patented technology

The invention relates to the technical field of river and lake landscape water system purification, and discloses a river and lake landscape water system composite purification system, which comprises a water quality parameter acquisition module, an ecological analysis module, a microbiological treatment module, a multi-stage collaborative purification module, a purification parameter generation module, an authority association module and a dynamic regulation and control module. The water quality parameter acquisition module acquires data in multiple dimensions to quantify the pollution level and trigger a purification instruction; the ecological analysis module evaluates the ecological self-purification capability, and the microbiological treatment module predicts the degradation efficiency; the multi-stage collaborative purification module generates a regulation and control signal in combination with the evaluation value; the purification parameter generation module generates repair and activation parameters accordingly; the permission association module monitors the emission permission of the pollution source; and the dynamic regulation and control module forms a closed-loop purification process. According to the system, through multi-module cooperation and closed-loop regulation and control, accurate recognition of river and lake landscape water system pollution, ecological self-purification capability activation and microbial degradation enhancement are achieved, and the purification efficiency and ecological restoration long-term effect are improved.

The invention relates to the technical field of sewage treatment, in particular to an aerobic aeration treatment system for plateau domestic sewage treatment, which comprises a pretreatment unit, a biological treatment unit, an advanced treatment unit and a recycling unit which are connected in sequence, the system further comprises a data acquisition module, an aerobic aeration intelligent regulation and control module, a biochemical environment constant-temperature maintenance module, a carbon-nitrogen proportion and backflow dynamic regulation and control module, a digital twinning and sludge characteristic simulation module and an energy collaborative scheduling module. Compared with the prior art which adopts a standard aeration strategy and cannot adapt to the special environment of low air pressure and low oxygen partial pressure of the plateau, the system can accurately adapt to the plateau environment by integrating real-time atmospheric pressure and water temperature monitoring, dynamically calculating the oxygen saturation solubility and correcting the aeration control target according to the oxygen saturation solubility, so that the aeration control target is optimized. Stable supply of dissolved oxygen required by biochemical reaction is ensured, and the technical bottleneck of low efficiency of traditional sewage treatment in plateau regions is fundamentally overcome.

The invention provides an intelligent management method and system for reducing pollution and carbon of rural domestic sewage. According to the method, sewage flow velocity, COD concentration, ammonia nitrogen content data, user water use time and detergent use amount are collected, and a database is constructed. And weighting the flow velocity and COD to generate a pollution load evaluation value, and calculating an organic matter pollution influence value in combination with ammonia nitrogen and detergent data. A porous ceramic medium is arranged in the biological treatment device, and the dissolved oxygen concentration is adjusted according to the pollution load. A correlation curve of a COD concentration peak value and water consumption time is established, a prediction model is constructed in combination with dissolved oxygen parameters, the gas injection and reflux ratio is adjusted through graded pressure instructions, and the critical value of dissolved oxygen is maintained. The day and night temperature difference is fused to correct the degradation rate, and the optical detection data is combined to optimize the critical range and the instruction priority, so that the cooperative control of sewage treatment and carbon emission reduction is realized. According to the invention, self-adaptive adjustment of dissolved oxygen in sewage treatment is realized, and the sewage reduction and carbon reduction management efficiency of domestic sewage is improved.

The invention belongs to the technical field of water treatment, and particularly provides a fungus filament bamboo-based biomass composite material and a lead-containing sewage treatment method. According to the invention, the lead-containing sewage is pretreated by using microorganism neurospora crassa, and then the lead-containing sewage is post-treated by using the fungus filament bamboo-based biomass composite material prepared under specific conditions, so that the mildness of microorganism treatment and the efficient adsorbability of the biomass composite material are effectively combined; and finally, the removal rate of heavy metal lead is increased, the cost is low, and environmental friendliness is achieved.

The invention discloses a system and a method for classified sewage treatment, and belongs to the technical field of environmental engineering and water treatment. The system comprises the following components: an intelligent water quality detection module, which is used for real-time and accurate monitoring of COD, BOD, ammonia nitrogen, total phosphorus, suspended matter concentration and heavy metal content; the sectional bioreactor realizes deep removal of nitrogen and phosphorus and efficient biological treatment by flexibly adjusting reaction conditions of each section; the intelligent flocculation control module is used for automatically and accurately adjusting the adding amount of a flocculating agent, and is combined with integrated operation of efficient inclined tube precipitation and sludge concentration, so that the water quality of discharged water is stable, and the medicament consumption is reduced; the ultrafiltration membrane bioreactor effectively removes residual suspended matters and colloids, and ensures that the effluent stably reaches the standard for a long time through the synergistic effect of catalytic ozonation; and the sludge treatment module is used for realizing collaborative optimization management of sludge reduction, recycling and energy recycling.

The invention discloses a complex microbial inoculant for treating underground water as well as a preparation method and application thereof, relates to the field of sewage treatment, and aims to solve the problem that TBBPA and nitrate in underground water are difficult to remove at the same time in an existing biological treatment method. The composite microbial agent is prepared from pseudomonas koreensis Y5-11, acinetobacter pidermatum LYS-5, Pseudomonas sp. Y39-6 and psychrophilic bacteria F5-6, and the pseudomonas sp. Y5-11, the acinetobacter pidermatum LYS-5, the Pseudomonas sp. Y39-6, the psychrophilic bacteria F5-6 and the psychrophilic bacteria F5-6 are added into the microbial agent. The four strains are respectively subjected to fermentation culture, and the four fermentation liquids are mixed to prepare the complex microbial inoculant. The four bacteria in the complex microbial inoculant have a stronger metabolism complementation effect, and the effect on composite pollution remediation is more remarkable. The complex microbial inoculant is used for removing TBBPA and nitrate in underground water at the same time, the complex microbial inoculant has biodiversity, and the treatment result conforms to the water quality characteristics of the underground water.

The invention discloses a method for recovering phosphorus through anaerobic digestion by adding sludge-based biochar, which comprises the following steps of: firing dewatered sludge serving as a raw material under an anaerobic condition to obtain carbonized carbon; or firing under an aerobic condition to obtain pyrolytic carbon, adding any sludge-based biochar obtained by firing into the hydrothermal dewatered sludge, and carrying out anaerobic digestion on the hydrothermal dewatered sludge; the hydrothermal dewatered sludge is obtained by performing hydrothermal pretreatment on dewatered sludge; and carrying out phosphorus recovery on the sludge-based biochar subjected to anaerobic digestion by utilizing a magnetic separation method. Compared with the traditional method for recovering the phosphate fertilizer from the sludge incineration ash, the recovery method disclosed by the invention is green and pollution-free, belongs to a sludge treatment mode of treating waste with waste, realizes effective combination of a heat treatment mode and a biological treatment mode, and has a good practical application value. Moreover, the prepared sludge-based biochar has the property of magnetism, so that the recovery rate of the subsequent blue iron ore is increased, and the separation difficulty and economic investment are reduced.

The invention provides a microbial sample automatic treatment system and a treatment method, and belongs to the technical field of microbial treatment. The automatic microorganism sample treatment system comprises a workbench, a pushing device arranged on the workbench, a loading rotary table and a flow rotary table, the loading rotary table and the flow rotary table are rotationally arranged on the workbench, a vessel cover loading position and a loader loading position are arranged on the loading rotary table, and a loader bearing position and a vessel cover bearing position are arranged on the flow rotary table. The workbench is further provided with a cover opening module, a lineation module and a cover closing moving module which are sequentially arranged in the rotating direction of the assembly line rotating disc, the cover opening module is used for taking away old vessel covers of the loaders located at the loader bearing position, and the cover closing moving module is used for covering the inoculated loaders with new vessel covers located at the vessel cover bearing position; and the new vessel cover is clamped with the loader. The whole system is reasonable in layout and stable and reliable in working process.

The invention relates to the technical field of industrial wastewater treatment, and discloses a modular industrial wastewater intelligent purification treatment system which comprises a sensor monitoring module, an intelligent analysis module, a modular treatment module, an automatic control module and a resource recovery module, the sensor detection module comprises a PH sensor, a turbidity sensor, a dissolved oxygen sensor, a heavy metal sensor and an ammonia nitrogen sensor, the intelligent analysis module comprises a pollutant identification module and a dynamic adjustment process module, and the modular treatment module comprises a physical treatment module, a chemical treatment module and a biological treatment module. The modularized intelligent purification treatment system for industrial wastewater can be rapidly and accurately adjusted according to real-time changes of sewage components, compared with a traditional immobilization process, waste of resources is avoided, the treatment efficiency is remarkably improved, meanwhile, multiple treatment technologies such as physical treatment, chemical treatment, biological treatment, adsorption and disinfection are integrated, and the system is suitable for popularization and application. And the device has strong treatment capacity on combined pollution and emerging pollutants.

The invention discloses a sewage treatment process for organic wastewater, and belongs to the field of sewage treatment.The sewage treatment process comprises the following steps that S1, wastewater containing nitrogen-containing organic phosphonic acid metal complexes is pumped into a dielectric barrier discharge reactor, and P-C bond energy is reduced through high-energy electron bombardment; s2, adding a modified layered metal hydroxide containing interlayer co-intercalation carbon quantum dots and persulfate and a composite oxidant of aspergillus niger immobilized microspheres into the wastewater subjected to plasma treatment; s3, deeply adsorbing heavy metal ions in the wastewater subjected to composite oxidation treatment in a gradient magnetic field by utilizing a magnetic layered metal hydroxide material; s4, the wastewater subjected to magnetic adsorption sequentially passes through an anaerobic ammonia oxidation coupling reactor and an aerobic biological membrane-activated sludge system to degrade pollutants; s5, dephosphorizing the wastewater subjected to biological treatment by algae by adopting a layered immobilized phycomycete symbiotic system; and S6, tail end magnetic recovery and effluent disinfection. The invention aims to solve the problems of low decomplexing efficiency and halfway decomplexing in the prior art.

The invention relates to the technical field of sewage treatment, in particular to low-dissolved-oxygen sewage microbiological treatment equipment which comprises a water storage barrel, a conveying mechanism is mounted on the water storage barrel, a treatment mechanism is mounted on the conveying mechanism, a cleaning mechanism is mounted at the bottom of the water storage barrel, and a discharging mechanism is mounted on the cleaning mechanism; through installation of the conveying mechanism and the treatment mechanism, sewage needing to be treated can be conveyed into the water storage barrel to be treated, purification treatment is conducted through the treatment mechanism, the treatment mechanism drives the filtering mechanism to rotate continuously, sewage entering the water storage barrel can be treated and filtered, and under driving of the treatment mechanism, sewage treatment is facilitated. The cleaning mechanism scrapes and compresses sediments at the bottom of the water storage barrel, the compressed sediments can be pushed out and cleaned through the discharging mechanism, cleaning after sewage of the water storage barrel is completely discharged is not needed, and operation is convenient, fast and efficient.

The invention discloses an air blower optimization control system and method for waste water treatment, and relates to the technical field of waste water treatment.The method comprises the steps that predetermined waste water indexes are read, feature collection is conducted on target waste water, and target waste water feature information is obtained; taking the target wastewater characteristic information as input information of a dissolved oxygen demand prediction model to obtain a target demand dissolved oxygen concentration; reading a predetermined aeration index, and analyzing the predetermined aeration index to obtain a target aeration control space; introducing a predetermined control fitness function as an optimization evaluation strategy, and performing global optimization in the target aeration control space by taking the target demand dissolved oxygen concentration as an optimization constraint to obtain an optimal aeration control scheme; and performing energy-saving aeration treatment on the target blower of the target wastewater according to the optimal aeration control scheme. The technical problems of low treatment efficiency and serious energy consumption during biological treatment of wastewater in the prior art are solved, and the technical effects of efficient wastewater treatment and remarkable energy conservation are achieved.

The invention provides a printing and dyeing wastewater concentration method and system, and the method comprises the steps: carrying out pretreatment on desizing wastewater, so that suspended particles and colloidal impurities in the wastewater are intercepted and adsorbed by a filtering medium; carrying out buffering and flow regulation on the pretreated wastewater, and meanwhile, carrying out heat exchange on hot condensate water generated in the printing and dyeing production process and the pretreated wastewater; raising the temperature of the wastewater to 40 DEG C or above; pressurizing the heated wastewater and then carrying out membrane separation and concentration treatment, forming dialysate by micromolecular substances and part of water, and gradually accumulating intercepted macromolecular substances to form concentrated solution; when the concentration of the concentrated solution reaches the discharge standard, pollutants are treated by adopting a chemical precipitation method and a biological treatment method, or useful substances are recycled. The wastewater concentration process flow is optimized, the wastewater is filtered, intercepted and adsorbed through multiple media, a good water inlet condition is provided for concentration treatment, modified starch and PVA in the wastewater are effectively concentrated, and the follow-up treatment volume and difficulty are reduced.

The application discloses a kind of high efficiency integrated integrated sewage treatment device, it is related to sewage treatment technical field, including support, further including fixed installation on support sedimentation filter unit, anaerobic treatment unit, microbial treatment unit, chemical treatment unit and pH adjustment unit.The advantages are: the present application integrates sedimentation filtration, anaerobic treatment, microbial treatment, chemical treatment and pH adjustment, realizes integrated sewage treatment, saves space, is convenient for transportation, can efficiently remove pollutants in water, simultaneously using multi-angle water distribution and multiple types of water distribution mode for sewage distribution, not only can make sewage and sludge layer contact more fully, but also can disturb sludge layer, make sludge layer distribution more uniform, to improve sewage treatment quality.

The invention belongs to the technical field of sewage treatment, and particularly discloses a method for recycling nitrate radicals by treating high-salinity wastewater through electroactive microorganisms, a microbial electrolysis cell three-electrode single-chamber system is adopted, high-salinity wastewater is used for domesticating and culturing a biological membrane, and the biological membrane has a good nitrate removal effect on nitrate wastewater with the salinity of 1%-3% and can be used for recycling nitrate radicals. For nitrate wastewater with the salinity of 1%-2%, nitrogen can be partially recovered in the form of ammonia, the defect that energy consumption is high when ammonia nitrogen resources are recovered from nitrate wastewater is overcome, the high nitrate removal rate is guaranteed, and meanwhile the defect that nitrate is difficult to recover from high-salinity wastewater is overcome.

The invention provides an efficient treatment method and system for traditional Chinese medicine decoction piece wastewater, and belongs to the technical field of wastewater treatment.The efficient treatment method for the traditional Chinese medicine decoction piece wastewater comprises the steps of (1) pretreatment, (2) coagulating sedimentation, (3) pre-acidification, (4) UASB anaerobic reaction, (5) SBR aerobic treatment, (6) catalytic ozonation, (7) deep filtration and disinfection, (8) sludge treatment and (9) intelligent control. The traditional Chinese medicine decoction piece wastewater treatment system comprises a pretreatment module, a physicochemical treatment module, a biological treatment module, a sludge treatment module and an intelligent control module. Through integration of physical, chemical and biological treatment technologies, organic matters, suspended matters and chromaticity in wastewater are effectively removed, and the overall treatment efficiency and the system stability are improved; the sludge and the traditional Chinese medicine waste residues are mixed to prepare biomass fuel, waste recycling is achieved, meanwhile, biogas is recycled for power generation, energy consumption is reduced, and a'treatment-energy-resource 'closed loop is formed.

The invention relates to the technical field of wastewater treatment, in particular to a comprehensive treatment device and method for selenium-containing wastewater. The device comprises a treatment tank, a tank cover, a treatment disc and a water quality detector, is equipped with a stirring assembly, an impurity removal assembly, a lifting assembly and the like, and is cooperatively controlled through a driving assembly. The air filtering holes of the treatment disc have the functions of filtering and aerating, and the whole process of physical impurity removal, chemical regulation and control, biological treatment and adsorption fine treatment is realized by combining precipitation and injection components and a feeding and air inlet system. According to the method, the selenium form is unified through valence regulation and control, chemical precipitation is enhanced, biological treatment and activated carbon adsorption deep purification are combined, and finally the selenium concentration reaches the standard. Through an automatic monitoring and circulating treatment mechanism, parameters of each stage are accurately controlled, stable and reliable effluent quality is ensured, and the method is suitable for efficient treatment of selenium pollutants in different forms.

The invention discloses a livestock and poultry breeding wastewater treatment device based on a dynamic bacterial-algae biological membrane and a method and application thereof, and relates to the field of livestock and poultry breeding tail water treatment. According to the biological treatment membrane bed unit, biological treatment and evaporation processes are creatively combined, and the system stability and the wastewater purification efficiency are remarkably improved. The unit is high in environmental adaptability and free of emission and peculiar smell during operation, the wastewater volume is effectively reduced, and the limitation of resource utilization of aquaculture wastewater is broken through. The biological membrane contains a plurality of microorganisms, including high-efficiency microorganisms added at the early stage and microorganisms captured from the environment, so that the operation and maintenance cost of equipment is reduced. Microalgae cells grow in the form of a biological membrane and are easy and convenient to harvest, and automatic continuous production is realized. According to the technology, organic waste in the breeding wastewater is recycled, the product is widely applied to multiple fields, the biological carbon sequestration function is achieved, and the carbon trapping device is low in cost, high in output value, green and environmentally friendly and assists in constructing a sustainable technical system and a circular economy mode.

The invention provides a pear vinegar production wastewater treatment process, which comprises a primary treatment box, the top of the primary treatment box is rotatably provided with a top plate, the bottom of the primary treatment box is fixedly provided with six groups of partition plates in equidistant circle center symmetry, the tops of the partition plates are rotatably provided with a first turntable, and a filter assembly is arranged between the first turntable and the top plate; the filtering assembly comprises a filtering frame, the filtering frame is located on the circle center axis of the primary treatment box, the bottom of the filtering frame is fixedly connected with the first rotating disc, and the top of the filtering frame penetrates out of the top plate. Compared with the prior art, through cooperation of the driving assembly and transmission, filtered wastewater is fed into different cavities for waiting, secondary pollution can be avoided, and the filtering efficiency is improved; the biological membrane filter cartridges are alternately fed into the biological treatment box, and the corresponding biological membrane filter cartridges are switched every time the chambers are switched, so that the situation that one biological membrane filter cartridge is used for a long time is avoided, the treatment efficiency is improved, the intermediate waiting time is shortened, and meanwhile, impurities accumulated in the primary treatment box are conveniently cleaned.

The invention discloses a low-aeration high-nitrogen-content sewage treatment device, and relates to the technical field of sewage treatment. Comprising a base, an operation cylinder and a sedimentation tank are arranged on the base, and a bottom cylinder is cooperatively arranged at the bottom end of the operation cylinder; partition plates are arranged in the operation barrel and divide the interior of the operation barrel into five operation pools, namely an anaerobic pool, a first anoxic pool, a first aerobic pool, a second anoxic pool and a second aerobic pool. The second aerobic tank is communicated with the sedimentation tank; push plates are respectively arranged in the five operation pools in a matching manner and are used for pushing out impurities; a stirring mechanism I is arranged in the anaerobic tank, and stirring mechanisms II are arranged in the other four operation tanks; a conveying mechanism is arranged at the bottom end of the bottom cylinder and located between every two operation pools in a communicating mode and used for conveying sewage; according to the invention, compact arrangement of each operation pool can be realized, and multi-stage biological treatment of sewage is realized; real-time dredging and maintenance are facilitated, and the interior of the operation pool is convenient to clean and maintain.

The utility model relates to a device for treating toxic heavy metals in tin-containing wastewater by combining chemical flocculent precipitation with multi-stage anaerobic treatment, in particular to a device for treating toxic heavy metals in tin-containing wastewater by combining chemical flocculent precipitation with multi-stage anaerobic treatment. The problems that existing tin-containing wastewater treatment is large in difficulty, overall treatment steps are complex, treatment cost is high, and more sludge is generated in a traditional treatment method are solved. The device consists of a water inlet pump, a coagulant storage tank, a coagulant adding pump, a coagulation stirring tank, an electric stirrer, a lifting pump, a multi-stage anaerobic reactor, an aeration device and a water outlet pump, an electric stirrer is arranged in the coagulation stirring tank; the multi-stage anaerobic reactor is divided into five biological treatment chambers, namely a first anaerobic biological treatment region, a second anaerobic biological treatment region, a third anaerobic biological treatment region, a facultative biological treatment region and an aerobic biological treatment region from left to right in sequence. The device is used for treating toxic heavy metals in the tin-containing wastewater.

The invention discloses a sewage treatment system based on artificial intelligence and biological targeting dynamic regulation and control, and relates to the technical field of sewage treatment. By collecting inflow water quality data of sewage in real time, taking the inflow water quality data, a historical water quality fluctuation period, an environment temperature and meteorological information as input data, and combining with a pre-trained water quality prediction model, a water quality prediction model is established; obtaining water quality prediction data; matching a functional microorganism combination based on the water quality prediction data, and calculating a microorganism release amount; and the reactor execution unit releases the corresponding microorganisms through a release device based on the microorganism release amount. The problems that a traditional biological treatment system is lagging in response, low in degradation efficiency, high in operation cost and the like are solved, and the artificial intelligence and biological targeting dynamic regulation sewage treatment system is developed.

The invention discloses a method for treating chromium wastewater by combining a modified charcoal percolation column with microorganisms, which comprises the following steps: constructing a composite filler layer by straw charcoal alkali modified loaded hydroxyapatite (BC / HA), and forming a synergistic system with bacillus cereus FZUY-01 (the preservation number is CGMCC NO.23342) for treating chromium-containing wastewater and high-concentration organic chromium wastewater. The chromium wastewater with medium and low concentration is obtained after treatment by an oxidation-reduction method, and chemical fixation of Cr (III) is realized through the synergistic effect of phosphate radical functional groups of hydroxyapatite and the reduction characteristic of biochar. The method is simple in process, compared with a traditional method that Cr (OH) 3 formed after organic chromium is subjected to oxidation reduction is difficult to remove and fix, efficient fixation of chromium in water can be achieved through the modified BC / HA filler combined strain, and the national emission standard can be met after treatment is conducted for 72 hours.

A rotor assembly (10, 150, 270, 310) and method of using the rotor assembly (10, 150, 270, 310). The rotor assembly (10, 150, 270, 310) includes a bio-process bag (48), a drum (46) that receives a lower portion of the bag (48), and a pressure ring (50). A holder (54, 182) couples an upper portion of the bag (48) to the pressure ring (50). The pressure ring (50) is coupled to the drum (46) to define an interior space that contains the bag (48). A liquid transport assembly (35, 178, 272) passes through an opening in the holder (54, 182) so that liquids can be added to, and removed from, the bag (48) without removing the rotor (16, 154) from the centrifuge. A bearing assembly (190) in the holder (54, 182) couples the liquid transport assembly (35, 178, 272) to the rotor (16, 154), and enables the liquid transport assembly (35, 178, 272) to remain stationary while the rotor (16, 154) rotates around it. One or more seal assemblies (276, 312) provide a fluid-tight seal against the outer portion of the liquid transport assembly (35, 178, 272), and prevent fluids from leaking from the bag (48) during centrifugation.

The invention discloses a method for improving livestock and poultry breeding wastewater treatment by a phycomycete system through starch wastewater and application, and belongs to the technical field of environmental engineering and biological recycling. The method comprises the following steps: (1) pretreating livestock and poultry breeding wastewater and starch wastewater to remove impurities; livestock and poultry breeding wastewater and starch wastewater are mixed according to a certain volume ratio to prepare mixed wastewater; (2) mixing chlorella sorojin and aspergillus oryzae in a logarithmic phase according to a certain quantity ratio, and inoculating to construct a microalgae-fungus co-culture system; and (3) putting the microalgae-fungus co-culture system into the mixed wastewater, treating under an illumination oscillation condition, and purifying the mixed wastewater. According to the method, the starch wastewater is adopted as a novel carbon source for replacing a traditional commercial carbon source, and a biological treatment mode of microalgae-fungus co-culture is combined, so that efficient purification of the livestock and poultry breeding wastewater is realized, meanwhile, biomass accumulation is promoted, resource utilization of wastes is realized, and dual targets of wastewater treatment and resource recovery are achieved.

The invention discloses a bacterial strain for broad-spectrum degradation of organic pollutants and application of the bacterial strain, the bacterial strain is classified and named as Acinetobacter venetianus, the bacterial strain number is GXGD-YZ-2508, the bacterial strain is preserved in Guangdong Microbial Culture Collection Center on August 27, 2025, the preservation number is GDMCC No: 66869, and the preservation address is the fifth floor, No. 59 building, No. 100 Courtyard, Xianlie Middle Road, Guangzhou City, Guangdong Province. The strain can grow under the condition that the salinity is 3wt%, can efficiently degrade 4-ethylphenol (4-EP), 2, 4-di-tert-butylphenol (2, 4-DTBP) and terephthalic acid (PTA), is suitable for biological treatment of aromatic pollutant-containing wastewater such as refining wastewater and PTA production wastewater, and has the advantages of high treatment efficiency, strong environmental adaptability and the like. The invention provides a novel microbial resource and an effective technical support for biological treatment of refractory aromatic pollutants, and has a wide application prospect.

To easily derive an optimum operating condition for a wastewater treatment system.SOLUTION: A method of deriving an optimal operating condition for a wastewater treatment system includes: based on a mathematical model of a wastewater treatment facility that converts treatment target water into treated water purified by biological treatment, an operational condition, and a water quality of the treatment target water, calculating a predicted value of an operating state of the wastewater treatment facility, including a predicted water quality value of the treated water; based on a mathematical model of a related facility that performs water treatment other than the biological treatment in relation to the wastewater treatment facility and at least the operating condition of the related facility, calculating a predicted value of an operating state of the related facility; and calculating an objective function value based on the predicted value of the operating condition of the related facility and the predicted value of the operating condition of the wastewater treatment facility, in which the operating condition of the related facility and the wastewater treatment facility when the objective function value is minimized within a range in which the predicted water quality value of the treated water satisfies a predetermined condition on the treated water quality are retrieved as the optimal operating condition of the wastewater treatment system.SELECTED DRAWING: Figure 1

The utility model discloses an ecological filter ditch water treatment system for farmland runoff, and aims to solve the problem that the removal effect of nitrogen and phosphorus pollutants in the farmland runoff is poor. A water outlet of a buffer tank in the ecological filter ditch water treatment system is connected with a water inlet of a first sedimentation tank through a water pipe, effluent of the first sedimentation tank flows into an ecological filter ditch through an overflow weir, a matrix is laid at the bottom of the ecological filter ditch, aquatic plants are planted in the ecological filter ditch, and an adsorption section is arranged at the water flow tail end of the ecological filter ditch. A ceramsite filler is stacked in the adsorption section, and an anaerobic zone, a first anoxic zone, a first aerobic zone, a second anoxic zone and a second aerobic zone are sequentially arranged in the A / O biological treatment tank along the water flow direction in the A / O biological treatment tank. According to the farmland runoff ecological filter ditch water treatment system, the ecological filter ditch and the A / O biological treatment pond are combined, the removal rate of TN and TP in runoff sewage can reach 85%-95%, and the removal effect of nitrogen and phosphorus pollutants is excellent.

The invention relates to a method for treating printing and dyeing wastewater. The method comprises the following steps: neutralization regulation, primary filtration for removing scum, decoloration and flocculation, secondary filtration, pH regulation, catalytic degradation under visible light, MBR membrane treatment and discharge. The printing and dyeing wastewater treatment process provided by the invention is compact in link, the first-stage filtration, decoloration flocculation and second-stage filtration in the treatment process all adopt conventional technical means in the field, the operation is simple and convenient, the cost is low, and a special bismuth-based aerogel composite material is used as a catalyst for photocatalytic degradation at the rear end; the aerogel is prepared by cross-linking a modified graphene oxide / BiOCOOH composite photocatalyst with an acrylic polymer matrix and then carrying out supercritical drying, so that macroscopic immobilization of a nano catalyst is realized. According to the method, the technological process is compact, the cationic dye which is difficult to biologically treat can be efficiently degraded, the industrial problems that a powder catalyst is easy to lose and difficult to recycle are solved, key indexes such as COD and chromaticity of the treated wastewater are remarkably reduced, and the treated wastewater can be discharged after reaching the standard.

The invention relates to the technical field of sludge treatment, in particular to a sludge biological treatment system which comprises a fermentation box, the device further comprises an anaerobic fermentation area, an aerobic fermentation area, a precipitation tank plate, an aeration assembly, a transfer tank, a biological tank and a sludge outlet auger, the precipitation tank plate is in a V shape and installed in the middle of the fermentation box, the fermentation box is divided into the anaerobic fermentation area, the aerobic fermentation area and the precipitation area by the precipitation tank plate, the aeration assembly is installed at the bottom of the aerobic fermentation area, and the transfer tank is installed in the sludge outlet auger. The transfer tank is installed outside the fermentation box and communicated with a sludge outlet of the fermentation box, the lower end of the transfer tank is connected with the input end of the biological tank, the transfer tank is used for evaporating sludge moisture, a biological conversion bed is arranged in the biological tank, the biological tank is used for biological treatment of sludge, and the sludge outlet auger is installed outside the biological tank. The input end of the sludge outlet auger is connected with the output end of the biological tank; the high-integration fermentation box is adopted, the fermentation speed is high, fermentation is more sufficient, sludge can be preliminarily separated, and the subsequent biological treatment efficiency is improved.