35results about How to "To achieve the purpose of nitrogen and phosphorus removal" patented technology

The invention relates to the field of sewage reuse, and particularly relates to an integrated MBR (Membrane Bio-Reactor). The integrated MBR is divided into an anoxic area and an aerobic area by using a baffle structure, carbon fiber packing is hung in the anoxic area, and an aeration device and a membrane assembly are placed in the aerobic area; the volume ratio of the anoxic area to the aerobic area is 1:3. The integrated MBR has the characteristics that due to the adoption of an integrated reaction device, the mode of multi-section processing in a single biochemical environment is solved, and the land-occupied area is saved; according to the structure characteristics, sewage circularly flows between the anoxic area and the aerobic area under the action of aeration, and shows different water flow characteristics; the device can simultaneously and effectively perform nitrification and denitrification processes, so that the sludge return is saved, thereby reducing the capital expenditure and the operation cost, and under the condition that the overall sludge concentration is not changed, the sludge concentration of the anoxic area is increased, and the sludge concentration of the aerobic area is reduced, thereby effectively reducing the membrane pollution; a carbon source required by denitrification is supplemented in a mode of feeding water from the anoxic area, thereby saving the cost.

The invention relates to a technical sphere of sewage disposal with biology suspended carriers. The invention said integrated biology treatment technology of sewage suspended carriers, comprises the following steps: a, reinforcing flocculating sediment: leading domestic sewage or industrial waste water and sequence stage flow-back miscible liquids into reinforced flocculating sedimentation basin, adding flocculant and mixing them, discharging the sediment from the bottom of settling zone; b, biotreatment and solid-liquid separation of an integral suspended carrier bioreactor: dividing a suspended carrier biology reaction pond with perforated boards or block walls into an anoxic zone, an aerobic zone, a solid-liquid separation zone, adding suspended carriers biology filler into each zone to get the integral suspended carrier bioreactor; making supernate obtained from step a flow into said three zones in turn, discharging sediment sludge from the bottom of the solid-liquid separation zone, the clear water discharger from the upper meeting emission standard. The process saves accommodation area, improves trash-removal effet, and it is suitable to different sewage disposal scale and inflow water quality.

The invention relates to a fracturing flowback fluid biological processing method based on a BESI technology, and aims to solve the problems that in the prior art, the process cost is high, and the oil content of effluent is high. The method comprises the following steps: step one, introducing fracturing flowback fluid into an anaerobic reaction device (2) through a sewage intake pump to carry out a treatment, wherein the HRT (hydraulic retention time) is 20 to 28 hours; step two, introducing the fracturing flowback fluid processed in the step one into a facultative anaerobic reaction device (3), wherein the HRT is 20 to 28 hours; step three, introducing the fracturing flowback fluid processed in the step two into an aerobic reaction device (4), wherein the HRT is 44 to 52 hours; step four, directly discharging part of fracturing flowback fluid processed in the step three from a discharging pipe, and returning residual fracturing flowback fluid to the facultative anaerobic reaction device (3), wherein the volume ratio of two parts is 1:1. The provided method is applied to the field of biological processing of fracturing flowback fluid.

The invention belongs to the field of waste water treatment, and specifically discloses a method for preparing a medicament for denitrification and / or phosphorus, mixing a ferrous source, raw material A and glass pumice, adjusting the pH of the system to be greater than or equal to 8, and reacting to obtain the obtained The above-mentioned medicament; raw material A is a material that can react with nitrogen and / or phosphorus in the wastewater to be treated to form a magnesium ammonium phosphate precipitate. The invention also discloses the medicament prepared by the preparation method and the application of the medicament in waste water treatment and slow-release fertilizer joint production. In the present invention, the glass pumice has dense through-type fine pores inside, especially has the applicative functions of fertilizer storage, slow release, water absorption and water retention, and can effectively physically and chemically adsorb nitrogen and phosphorus in water bodies when combined with other substances . The agent has good stability, wide application range, small dosage, less sludge generation and can be used as a slow-release fertilizer. It is an environment-friendly medicament and has a good application prospect.

The invention provides an integrated treatment device and method for low concentration sewage, and relates to a sewage treatment device and method, aiming to solve the technical problem that the existing anaerobic expanded bed reactor has low efficiency for treating nitrogen and phosphorus and easily causes sludge to lose. The device comprises a bamboo-shaped aerobiotic external cylinder, an anaerobic internal cylinder, a three-phase separation cylinder, a bamboo-shaped hollow cylinder, a water distributor, a gas collecting cover, a gas delivery pipe, a mud discharging hopper, a mud discharging pipe, and an S-shaped connecting pipe, wherein the anaerobic internal cylinder is arranged in the bamboo-shaped aerobiotic external cylinder, and the bottom of the three-phase separation cylinder is connected with the top of the anaerobic internal cylinder; the bamboo-shaped hollow cylinder is arranged in the anaerobic internal cylinder, a filler is filled in the bamboo-shaped aerobiotic external cylinder, and a mixture of anaerobic granular sludge and the filler is filled in the bamboo-shaped hollow cylinder. The method comprises the following steps of: feeding sewage into the anaerobic internal cylinder, reacting with anaerobic granular sludge in the hollow cylinder, rising into the three-phase separation cylinder for separation, dropping outlet water in the bamboo-shaped aerobiotic external cylinder for aerobic treatment, and completing treatment. The device and method is used for treating low concentration sewage.

A system for reasonably optimizing and distributing carbon source in the treatment of refractory wastewater consists of at least one section of biological tank and at least one section of sedimentation tank which are sequentially connected, wherein refractory industrial wastewater or urban wastewater partially or completely enters the biological tank sectionally according to a ratio, the effluentof the biological tank enters the sedimentation tank, and the effluent of the biological tank is discharged; and sludge in the sedimentation tank partially or completely reflows to the biological tank. The invention has stronger impact-resistant and load-bearing capability, sectional inflowing, flexible operation, good treatment effect and relative low cost, and is applicable to treatment of urban wastewater with high ratio of chemical wastewater, complicated wastewater composition and large treatment difficult in municipal sewage.

The invention relates to an ecological green space sewage processing system. The system is characterized in that a regulating tank, an ecological green space tank, and a vertical sustain-released feed pipe are communicated with each other in sequence. The invention also provides a processing method of the ecological green space sewage processing system. The processing method comprises the following steps: (1) making sewage go through the regulating tank to intercept the suspensions and fine sand particles; (2) after step (1), introducing the sewage into a water distribution system, then introducing sewage into the ecological green space tank, making sewage go through a water distribution layer, a rooting layer, a microbe growing layer, an adsorption layer, a buffer layer, and a water collecting layer in the ecological green space tank from bottom to top, and finally introducing sewage into a water collecting device; (3) collecting water; (4) discharging clean water. Compared with the prior art, the provided system and method have the advantage that in the microbe growing layer, the biomembrane method and artificial wet land technology are organically combined, biological filling materials are increased, so that microbes can be enriched on the filling materials and grow on the filling materials, the microbe membrane is fixedly attached on the filling materials, the microbes are immobilized; the aerobic and anaerobic environments are alternately changed, and the effect of microbes is enhanced.