Industrial technology for sewage treatment

Unique advantages of CCAS wastewater treatment process:

(1) During aeration, the sewage and sludge treated by CCAS are in a completely ideal mixed state, ensuring the removal rate of BOD and COD, which is as high as 95%.

(2) The repeated operation mode of "aerobic - anoxic" and "aerobic - anaerobic" strengthened the phosphorus absorption and nitrification - denitrification, so that the removal rate of nitrogen and phosphorus reached more than 80%, ensuring that the effluent index was qualified.

(3) When precipitating, the entire CCAS reaction tank is in a completely ideal precipitation state, so that the suspended matter in the effluent is extremely low, and the low value also ensures the removal effect of phosphorus.

The disadvantage of CCAS wastewater treatment process is that the pools run intermittently at the same time, manual control is almost impossible, relying on computer control, and the quality of management personnel of the treatment plant is very high, and the design, training, installation, commissioning and other work requirements are stricter.

Biological aerated filter

Introduction to the sewage treatment process: aerated biological filter, that is, the filler is set in the biological filter treatment device, and a large number of microorganisms grow on the filler through artificial oxygen supply. The sewage treatment process device is composed of a filter bed, a gas distribution device, a water distribution device, a drainage device, etc. The aeration device adopts a special aerator head, and the small and medium-sized bubbles generated are repeatedly cut by the filler to achieve the effect of close to micro-controlled aeration. Due to the high sludge concentration in the reaction tank and the compact treatment facilities, the footprint can be greatly saved and the reaction time can be reduced.

SPR phosphorus removal process

The main reason for water eutrophication is that human beings discharge a large amount of ammonia nitrogen and phosphorus into the water, and phosphorus is the most important factor of water eutrophication. Throughout the domestic sewage treatment process, phosphorus removal technology has always been a difficult problem plaguing the operation of sewage treatment plants. The traditional physicochemical phosphorus removal technology requires a large number of agents, which has the disadvantages of high operating cost and large sludge yield. The pre-anaerobic biological phosphorus removal process has the advantage of low operating cost, but it is difficult to meet the requirements of the national sewage treatment process because it completely depends on the phosphorus uptake and phosphorus release of microorganisms. When the reuse of reclaimed water is considered, it is more difficult to meet the requirements.

Biological filter

Introduction to the sewage treatment process: Due to the scattered residential points of small towns in China, the distribution of sewage sources is more and less, and the scale of urban sewage plants is mostly less than 10,000 tons/day. The sewage treatment processes often used in domestic large and medium-sized urban sewage treatment plants include traditional activated sludge method, A2/O, SBR, oxidation ditch, etc. If these technologies are used to build small town sewage treatment plants, it will cause high operating costs and cannot be continuously operated. It is necessary to adopt the technology of less investment, low operating cost, stable and reliable technology, relatively simple operation and management according to the characteristics of small towns.

MBFB membrane organisms

The MBFB process is used for the advanced treatment of sewage, which can further reduce COD, NH-N, turbidity and other indicators on the basis of the standard discharge of the original sewage through the biological fluidized bed and ceramic membrane separation system. On the one hand, it can be directly reused, on the other hand, it can also be used as a pre-treatment process for RO desalination treatment, replacing the original sand filtration, security filtration, ultrafiltration and other lengthy filtration processes. At the same time, the reduction of organic content greatly improves the service life of RO membrane, reduces the cost of reuse water treatment, inorganic ceramic membrane separation system, is the world's first set of special inorganic membrane separation system for sewage treatment, compared with other organic membranes, inorganic membranes, with large membrane flux, recoil, automatic operation and other advantages.