Wastewater treatment process based on combination of super magnetic separation and SBR (Styrene Butadiene Rubber) technique

Abstract

The invention discloses a wastewater treatment process based on combination of super magnetic separation and an SBR (Styrene Butadiene Rubber) technique. In the wastewater treatment process, a super magnetic separation system, an SBR system, an ultraviolet sterilization system and a self-control system are included, wherein the self-control system is connected with the super magnetic separation system, the SBR system and the ultraviolet sterilization system; the super magnetic separation system comprises a super magnetic separator, a magnetic seed recycling system, a magnetic seed pump and a water outlet pool; water feed, aeration, sedimentation, water discharge and sludge discharge are implemented in sequence in an SBR pool, organic matter degradation and nitrogen and phosphorus removal are effectively implemented in the SBR pool; the ultraviolet sterilization system comprises tubular type ultraviolet sterilization equipment and a valve; and the self-control system comprises a sensor. The wastewater treatment process has the advantages of being small in floor space, moveable, free of complex civil engineering, low in operation cost, high in automation degree, easy to operate and manage and the like; due to PLC (Programmable Logic Controller) real-time control, phenomena that the water quality is affected because of insufficient aeration or sludge swelling is caused and electric energy is wasted because of too long aeration can be effectively avoided, the labor cost is low, the service life of the equipment is long, and secondary investment is small.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment process based on the combination of supermagnetic separation and SBR technology. Background technique [0002] As we all know, with the rapid development of my country's economy, environmental protection has been paid more and more attention by people from all walks of life. In recent years, the sewage treatment process has become more and more mature. In order to reduce the area occupied by new water treatment stations and related civil works, and improve the emergency treatment capacity of sewage and wastewater, magnetic separation technology has emerged as the times require. The SBR technology integrates the functions of homogenization, primary sedimentation, biodegradation, and secondary sedimentation into one tank, and performs five processes of water intake, aeration, sedimentation, drainage and sludge discharge, and idleness in chronolog...

AI Technical Summary

Problems solved by technology

However, there are still some defects in magnetic separation technology, such as basically no removal effect on ammonia nitrogen, unsatisfactory COD treatment effect, large amount of chemical agents and high cost. If it can be effectively combined with biochemical treatment process, the treatment effect can be greatly improved

[0003] Existing conventional SBR technology usually sets a certain time for each process and uses timer control, but the influent concentration of sewage is constantly changing. If the concentration of sewage is low, the aeration time will be too long and the SVI value will increase , will cause sludge bulking and waste of electricity. In addition, if the concentration of sewage is too high, the aeration time will be insufficient, and the treated sewage will not meet the standard

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