Laundry sewage treatment equipment [device]

Laundry pollution Water treatment equipment Device

Process facilities, Grade A biological treatment tank (anoxic tank), setting purpose:

Because the nitrogen content of agricultural production system in washing sewage is high, it will appear in the form of ammonia nitrogen during biodegradation, so the index of ammonia nitrogen discharged into water will rise, and ammonia nitrogen is also a pollution control index, so anoxic tank is added before the contact oxidation tank, The anoxic tank can use the nitrate brought in by the reflux mixed solution and the carbon source of the agricultural production system in the influent for denitrification, so as to make the NO in the influent _two ^- NO _three ^- Restore to N _two The nitrogen removal function is achieved, and the ammonia nitrogen value is degraded while the agricultural production system substances are removed.

Design feature: built-in bio elasticity filler It also has hydrolysis acidification function, and can be adjusted to become an O level biological oxidation tank to increase the biochemical retention time and improve the system treatment efficiency. The tank is designed as steel structure and buried. The purpose of setting Grade O biological treatment tank (biological contact oxidation tank): this tank is the core part of this sewage treatment. Through the biochemical degradation and adsorption of a large number of different species of microbial communities attached to the filler, various agricultural production system substances in the sewage are removed, so that the content of agricultural production system substances in the sewage is significantly reduced.

In the later stage, under the condition of low load of agricultural production system, the ammonia nitrogen in sewage can be degraded under the condition of sufficient oxygen through the action of nitrifying bacteria, and the COD value in sewage can also be reduced to a lower level, so that the sewage can be purified. Design features: the tank is composed of tank body, filler, water distribution device and oxygen aeration system.

The biological contact oxidation method is dominated by the biofilm method and has the characteristics of the activated sludge method: it has more biomass per unit volume than the activated sludge method, so the agricultural production system has high load, short contact time, and high treatment efficiency, which is conducive to reducing the volume of treatment structures, reducing the floor area, and saving capital investment in infrastructure. The sludge does not need to be returned, and sludge bulking will not occur, so the operation and management are simple. The system has strong impact load capacity. This method has strong adaptability to load changes due to a large number of biofilms growing on the filler. It also has a certain effect under intermittent operation conditions, so it is more practical for pharmaceutical wastewater with uneven drainage. Membrane culture is simple.

Laundry sewage treatment equipment [device] With the development of economy, Jinjiang City has increased the construction of urban drainage facilities in recent years. With the construction of sewage system facilities, the amount of sewage collection and treatment is increasing. At present, Jinnan Sewage Treatment Plant has encountered many problems during the operation of Phase I, mainly including the fracture of the main shaft of the fiber rotary disc filter, the leakage of the chlorination room, the high failure rate of the oxidation ditch propeller, and the diving of the reflux pool pump No frequency conversion, difficult control of return flow, dehydration workshop Screw pump The noise is high, which has a certain negative impact on the production and safety of the plant. Therefore, Phase I needs to be upgraded.