45results about How to "Increase bioconcentration" patented technology

The invention discloses a technique of biological treatment for coking wastewater. The filter chamber is composed of a preprocessing part, a biological treatment part and a physical treatment part, wherein the biological treatment part is composed of an anaerobic ceramsite filter chamber, an anoxia ceramsite filter chamber and an aerobic ceramsite filter chamber which are connected in series, spherical ceramsite filtering materials or irregular-shape ceramsite filtering materials are all filled in the anaerobic ceramsite filter chamber, the anoxia ceramsite filter chamber and the aerobic ceramsite filter chamber as biofilm culturing filling and filtrating precoats, the anaerobic ceramsite filter chamber employs an internal reflux mode, a reversed flow mode is employed between the anoxia ceramsite filter chamber and the aerobic ceramsite filter chamber, the precoats in the filter chambers are respectively formed by ceramsite filtering materials with different thickness, the filter chambers employs backwash to exclude accumulated sludge and suspended substance in the filter chambers into flotation tanks of the preprocessing part, the anaerobic ceramsite filter chamber, an anoxia ceramsite filter chamber employs regular water scrubbing to drive macro-gas-bubble in the chambers. Compared with the prior art, the technique has the advantages of prolonging sluicing periodic time, stabilizing operational effect, improving treatment loading, thereby reducing retention time of waterpower, decreasing accommodation area and investment of pile plant.

The invention discloses a self-forming dynamic membrane biological reaction sewage treatment device comprising a reaction pool, clapboards and a grid well and forming biological reaction areas, biological transition areas and a clean water area. Special biological fillers and a microporous aerator are arranged in each biological reaction area, a self-forming dynamic membrane device is arranged in the grid well, a water discharge pipe is arranged in the clean water area, and a guide plate is arranged below the clean water area. The self-forming dynamic membrane biological reaction sewage treatment device disclosed by the invention has the advantages of simple structure, low floor area, low investment, good treatment effect, low running cost, no needing of operation and management of specially-assigned person and the like, thereby being very suitable for requirements on the current small towns and countries for sewage separating treatment.

The invention relates to a biological strengthening treatment water system for large specific surface area particles, which comprises a biological strengthening treatment subsystem, a continuous dynamic sand filtration subsystem and a dynamic membrane separation and purification subsystem, the subsystems are successively connected through water pipes to form a circular water treatment system, thebiological strengthening treatment subsystem comprises raw water and biological strengthened large specific surface area particles, a bio-solution after biochemical treatment carries large specific surface area particles and enters into the continuous dynamic sand filtration subsystem, large specific surface area particles in water is filtered and returned in the biological strengthening treatment subsystem, the filtered sand filtration liquid enters in the dynamic membrane separation and purification subsystem, impurities in water are separated by a dynamic membrane formed by large specific surface area particles, partial large specific surface area particles are conveyed in the biological strengthening treatment subsystem after back flushing, the other part of the large specific surfacearea particles and newly added large specific surface area particles newly form the dynamic membrane, so that the technical problem in the prior art that large specific surface area particles can notbe separated from water is solved.

The invention discloses a sludge self-circulation dispersed sewage treatment device applicable to sewage reuse and a method of the device, and belongs to the technical field of sewage treatment. The sludge self-circulation dispersed sewage treatment device comprises an integrated reactor, wherein the integrated reactor is internally divided into a sewage ascending area, a sewage descending area and a settling area; a first isolation plate is arranged between the sewage ascending area and the sewage descending area; and a second isolation plate is arranged between the sewage descending area and the settling area. Through time-delay aerobic reaction design, the sludge reduction is realized, and the requirements on water reuse of Urban Wastewater Reclamation and Reuse: Urban Sewage Quality (GB / T18920-2002) can be met through integrated unit effluent. The reaction pool is high in sludge concentration, needs no sludge backflow facility, low in effluent concentration, simple and convenient in operation in sewage treatment and diverse in function; the quality and quantity of water are high in change capability, the reactor is high in sludge concentration and high in volume load, module production can be carried out, and unattended operation in a sewage treatment station is realized.

The invention relates to an in-situ treatment method for farmland receding water, which belongs to the field of ecology and environmental protection, and specifically relates to a method for removing nitrogen, phosphorus and organic matter in farmland receding water by using a multi-layer immobilized material of surrounding bio-adhesive composite bacterial flora. The present invention selects ordinary anaerobic granular sludge and aerobic activated sludge, cultivates and domesticates them to obtain anaerobic ammonium oxidation granular sludge and aerobic nitrification granular sludge, and obtains multi-layer immobilization of complex flora through separation, screening and preservation drying steps The inner core of the material is subjected to a granulation step using a sphere forming mold to obtain a multi-layer immobilized material of complex flora. Apply the multi-layer immobilized material of composite flora to the shore zone of farmland receding water, and attach and grow surrounding clusters of organisms, so that farmland receding water will naturally seep through the sunny shore zone, and build a surrounding cluster for the prevention and control of farmland receding water pollution Bio-enhanced denitrification system. The invention utilizes the characteristics of high biological concentration and strong environmental adaptability of the immobilized microorganism technology to realize the successful application of the immobilized microorganism technology in rural water environment treatment.