11results about How to "High volume load" patented technology

The invention discloses a process for treating rural domestic sewage by using an improved A2 / O + MBBR (Moving Bed Biofilm Reactor), and relates to the technical field of sewage treatment. The method comprises the steps of S1, initial-stage treatment, S2, reflux treatment and S3, tail-stage treatment. The rural domestic sewage is treated by an improved A2 / O + MBBR nitrogen and phosphorus removal process, and the rural domestic sewage is distributed into each tank by adopting a sectional water inlet technology, so that an alternate multi-stage facultative / aerobic environment is formed, and the biological nitrogen and phosphorus removal effect is enhanced; the improved A2 / O + MBBR process has the advantages of high nitrogen and phosphorus removal effect, low investment and operation cost, convenience in operation and management and the like; all returned sludge enters the pre-denitration tank and enters the front-section anaerobic tank and the front-section anoxic tank, a sludge concentration gradient from high to low is formed in each tank, and the average sludge concentration in each tank is increased and the hydraulic load of the sedimentation tank is not changed under the condition that the effluent sludge concentration is not increased, so that the proliferation speed of phosphorus-accumulating bacteria and nitrifying bacteria is accelerated; the proportion in the total amount of the activated sludge is increased, so that the nitrogen and phosphorus removal effect is improved.

The invention discloses a fluidized collision type bioelectric reaction device suitable for high-carbon sewage treatment. The device comprises a reactor body, a capacitive electroactive biofilm carrier, an anode plate and a cathode plate. The reactor body is a cylinder, the bottom of the reactor body is provided with a water impeller, and the areas are separated by grids; the capacitive electroactive biofilm carrier is a sphere formed by stacking round sheets and is made of polyethylene plated with an ITO (Indium Tin Oxide) film, and stainless steel spikes are arranged on the surface of the capacitive electroactive biofilm carrier; the cathode plate is made of graphite and is cylindrical; the anode plate is made of stainless steel compounded by lauryl sodium sulfate and graphene-multi-walled carbon nanotubes and is cylindrical, the plate wall is hollow, and the anode and the cathode are connected through a circuit. Electron transfer is completed through flowing and collision of the capacitive electroactive biofilm carrier, the mass transfer efficiency and activity of the electroactive biofilm are enhanced, the high-carbon wastewater treatment capacity is improved, and meanwhile the device has the advantages of being high in impact load resistance and low in site area requirement.

The utility model relates to a coffee wastewater treatment device, which belongs to the technical field of coffee processing wastewater treatment and comprises a sediment pool, an adjusting pool, a yeast reactor, a solid-liquid separator, a water distribution pool, an A / O biochemical pool and a secondary sedimentation tank. The yeast reactor is internally provided with an aeration device and is filled with microbe beads, the microbe beads are in a fluidized state, and candida mycoderma bacteria are adsorbed on the microbe beads; the sediment tank is communicated with the regulating tank through an overflow pipe; the adjusting tank is communicated with the yeast reactor through a lifting pump and a pipeline; a water inlet of the solid-liquid separator is communicated with a water outlet pipeline of the yeast reactor; two overflowing partition plates are arranged in the A / O biochemical pool to divide the A / O biochemical pool into a hydrolysis area, a denitrification area and a nitrification area; effective treatment of wastewater can be achieved without adding alkali, an anaerobic reactor which is low in starting speed, high in water inlet condition requirement and unstable in operation in a conventional process can be replaced, up-to-standard discharge of sewage is achieved, and in addition, the device is short in starting time, good in system stability and capable of adapting to changes of the quality and the quantity of the sewage.

The invention belongs to the technical field of sewage treatment, and particularly relates to integrated intelligent anaerobic denitrification equipment which comprises an equipment main body, an aeration pipe and an inclined plate filler, a water inlet pipe is arranged at the top of one side of the equipment main body, and the equipment main body is connected with an external wastewater supply mechanism through the water inlet pipe; a backflow pipe is arranged at the bottom of the equipment body, a thermometer is arranged at the top of the equipment body, a dissolved oxygen meter is arranged on one side of the thermometer, an aeration pipe is arranged on one side in the equipment body, and an aeration disc is arranged at the bottom of the aeration pipe. By arranging the aeration disc, the aeration pipe, the inclined plate filler, the guide plate, the biological filler, the reflux pipe and the reflux pump, the equipment consists of three groups of areas, namely an aeration area, a settling area and an ammoxidation biological deoxidation area, and the equipment adopts multifunctional subareas to create an environment suitable for efficient growth of ammoxidation bacteria; the mass-propagated ammonia oxidizing bacteria can form biological cenobium, compared with the traditional process, the volume load is greatly improved, the denitrification efficiency is improved through a biological method, and meanwhile, the operation cost is saved.

The utility model relates to sewage treatment equipment of an aerobic biological fluidized bed, which belongs to the technical field of sewage treatment and comprises the aerobic biological fluidized bed which is of a hollow tank body or cylindrical structure and is internally provided with a hydrophilic microbial carrier; a sieve tray is arranged at the bottom of the aerobic biological fluidized bed, and a flow stabilizing cylinder is arranged at the upper part of the aerobic biological fluidized bed; the flow stabilizing cylinder comprises a straight cylinder section and a big-end-down horn cylinder connected to the lower portion of the straight cylinder section. A settling chamber is formed by the guide cylinder and the outer wall of the horn-shaped cylinder; a sludge return channel is reserved between the bottommost end of the horn and the bed wall of the aerobic biological fluidized bed, and the size of the sludge return channel is smaller than the diameter of the hydrophilic microbial carrier; a gap is reserved between the guide cylinder and the steady flow cylinder, and an interception net is arranged in the gap; the reactor disclosed by the utility model has the characteristics of high volume load, small occupied area, large biomass, impact load resistance and no loss of filler carriers and microorganisms.

This invention discloses a highly efficient integrated anaerobic ammonia oxidation reactor and treatment method for kitchen wastewater sludge, belonging to the field of wastewater treatment technology. The reactor includes a tank and integrated pretreatment module, denitrification reaction module, solid-liquid separation module, temperature control module, aeration module, and sludge circulation module. The pretreatment module is located at the bottom of the tank and includes a grid filter unit and a bio-adsorption unit; the denitrification reaction module is located above the pretreatment module and is filled with granular anaerobic ammonia oxidation composite bacteria; the solid-liquid separation module is located above the denitrification reaction module and includes a three-phase separator and an inclined plate sedimentation unit. This invention, through its integrated design, achieves pretreatment, denitrification reaction, solid-liquid separation, and precise control within a single tank, solving the problems of low integration, easy loss of bacteria, and high operating costs in existing technologies. It has advantages such as small footprint, high efficiency, stable operation, and no need for external carbon sources, making it particularly suitable for kitchen wastewater sludge treatment.

This utility model relates to a combined integrated wastewater deep treatment equipment, comprising: an anaerobic tank, effluent from the anaerobic tank being connected to an anoxic tank, effluent from the anoxic tank being connected to an aerobic tank, a suspended sedimentation separation structure within the aerobic tank, an aeration device below the sedimentation separation structure within the aerobic tank, supernatant from the sedimentation separation structure being connected to a vertical flow sedimentation tank, supernatant from the vertical flow sedimentation tank being connected to a gradient filtration device, and effluent from the gradient filtration device being connected to a clear water tank. The beneficial effects are: the proportion and sequence of anaerobic, anoxic, and aerobic processes can be adjusted according to different usage scenarios; the process is arranged in the order of anaerobic, anoxic, and aerobic, mainly for simultaneous nitrogen and phosphorus removal; the biological treatment zone consists of anaerobic + anoxic + aerobic; and the sedimentation zone and gradient filtration are connected in series at the end of the biological treatment zone, highly integrating biological and deep treatment processes, resulting in equipment with high treatment efficiency, high flexibility, strong adaptability, low operation and maintenance difficulty, and low operating energy consumption.

The invention relates to a semi-coke wastewater double-carbon-source biochemical treatment system and process, and the process comprises the following steps: pretreated semi-coke wastewater enters a front anoxic tank for denitrification reaction to remove COD and total nitrogen; effluent of the front anoxic tank enters an aerobic tank to be subjected to carbonization and nitration reaction, organic matters are removed, and ammonia nitrogen is converted into nitrite nitrogen and nitrate nitrogen; effluent of the aerobic tank enters a rear anoxic pretreatment tank for endogenous denitrification reaction; the mixed liquid in the rear anoxic pretreatment tank flows back to the front anoxic tank, and the reflux ratio is 400%-800%; and effluent of the post-anoxic pretreatment tank is subjected to mud-water separation and post-treatment to reach the standard and then is recycled. Mixed liquid backflow is carried out at the tail end of the rear anoxic pretreatment tank, the device has the advantages of being resistant to toxicity and impact, simple in technological process and low in operation cost, meanwhile, a large backflow ratio is adopted, nitrate nitrogen is removed, and meanwhile impact of biotoxicity on a biochemical system and inhibition of the biotoxicity on microorganisms are reduced.

The application discloses a device and method for realizing simultaneous nitrogen removal of urban sewage and photovoltaic cell wastewater based on a reinforced autotrophic / heterotrophic coupled granular sludge process. The device mainly comprises a horizontal flow defluorination reaction sedimentation tank, an intelligent adjusting tank, an aerobic deep oxidation system and a reinforced autotrophic / heterotrophic coupled granular system. The method realizes efficient simultaneous nitrogen removal of urban sewage and photovoltaic cell wastewater through a double-flow inlet strategy: the residual micro-particles and calcium ions after defluorination pretreatment are used as crystal nuclei to promote the granulation of subsequent sludge; the impact resistance of the coupled granular sludge is enhanced through a biofilm carrier; and the intelligent adjusting tank is used to realize precise water distribution, so that the reinforced autotrophic / heterotrophic coupled granular system can stably and efficiently remove nitrogen. The application not only realizes simultaneous deep treatment of urban sewage and photovoltaic cell wastewater, but also strengthens the structural stability of the granular sludge by using the calcium components in the wastewater, solves the problem of difficulty in forming the granular sludge and improves the nitrogen removal performance.

The present invention relates to the technical field of sewage treatment, and in particular to an integrated device for deep denitrification of ammonia-nitrogen-containing sewage and a treatment method thereof. The integrated device for deep denitrification of ammonia-nitrogen-containing sewage described in the present invention has each reaction section tightly combined in space, the tank body is built together, the head loss is small, and through the coordination of multi-stage and multi-biochemical processes, it overcomes the shortcomings of low denitrification efficiency, poor operation stability, large floor space, and many monomer structures when treating sewage with traditional biochemical technology; it has the functions of organic matter oxidation, denitrification, short-range nitrification, and short-range nitrification-anaerobic ammonia oxidation, and has the advantages of high denitrification efficiency, stable operation, high integration, and small floor space.

The utility model relates to the technical field of wastewater treatment, in particular to a comprehensive wastewater treatment system which comprises a pretreatment system and a biochemical treatment system, and the pretreatment system comprises a trifluoroacetic acid treatment unit, a fermentation wastewater treatment unit, an acetonitrile wastewater treatment unit and a low-concentration production wastewater treatment unit; the fermentation wastewater treatment unit comprises a collection tank, a front dephosphorization reaction tank and a front dephosphorization sedimentation tank which are connected in sequence, and a water outlet pipe of the front dephosphorization sedimentation tank is connected with a buffer tank; the acetonitrile wastewater treatment unit comprises a collecting tank, an alkaline hydrolysis reactor, a multi-dimensional electrolytic tank and a photocatalytic oxidation reaction tank which are connected in sequence; the low-concentration production wastewater treatment unit comprises a collection tank, a neutralization reaction tank and a neutralization sedimentation tank which are connected in sequence, and a water outlet pipe of the neutralization sedimentation tank is connected with the comprehensive regulation tank. On the basis of relatively economical biochemical treatment, classification pretreatment is carried out according to difficult-to-treat components in the wastewater, so that the biochemical treatment effect is ensured, and the wastewater is stably discharged in a standard reaching manner.