An intelligent sewage treatment system

Abstract

The invention discloses an intelligent sewage treatment system. A pressure transmitter which is connected with an automatic control system is arranged on a water-producing pipe, wherein the automatic control system is capable of automatically controlling on / off of a water inlet valve, a water-producing valve, a backwash valve, a mud discharge valve, a blow-down valve and a chemical dosing valve under the action of the pressure transmitter or according to the operation time of the intelligent sewage treatment system, so that in-situ online cleaning and in-situ offline cleaning of an MBR reaction system are automatically controlled; the error of manual operation is reduced; the management cost is reduced; the condition that the MBR reaction system is in a good operation state is ensured; frequent lifting of a membrane module is avoided; the fiber breakage ratio is reduced; the service life of an MBR membrane bioreactor is prolonged; and the exchange cost is reduced. In addition, a sludge reflux system comprising namely a sludge guide plate and a sludge hopper is additionally arranged in the intelligent sewage treatment system disclosed by the invention, thereby achieving significant assisting action for the phosphorous removal effect of the MBR membrane bioreactor.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an intelligent sewage treatment system. Background technique [0002] With the continuous deepening of national energy conservation and emission reduction requirements, pollutant discharge standards are becoming more and more stringent, and the current biological treatment technology has been difficult to meet the requirements of the new standard. The MBR reaction system uses membrane modules to replace the traditional biological treatment technology terminal secondary sedimentation tank. , reduce the area occupied by sewage treatment facilities, maintain a high concentration of activated sludge in the bioreactor, intercept the macromolecular organic matter in the water, and improve the efficiency of biological treatment, which has become the development trend of wastewater treatment technology. [0003] Although the MBR reaction system has many advantages, it lacks sl...

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Problems solved by technology

[0003] Although the MBR reaction system has many advantages, it lacks sludge return, and the sludge released from anaerobic phosphorus does not return to the system and circulate to the aerobic pool to absorb phosphorus, which makes the phosphorus removal effect of the system unsatisfactory.

After a long period of use, the MBR reaction system needs to be cleaned to restore its working ability. The traditional MBR reaction system membrane needs to be lifted and disassembled before cleaning. It is mainly operated by manpower, resulting in complicated operation and management. Frequent lifting and cleaning aggravate the breakage of the membrane filament. There are problems such as blockage and broken wires, and the cost of replacement and maintenance is high. However, most of the current operation management is still extensive management. The irregular operation makes the MBR reaction system in a state of overload operation for a long time, which accelerates its aging and restricts its promotion. application bottleneck

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