Chemical pharmaceutical wastewater treatment system

Abstract

The invention discloses a chemical pharmaceutical wastewater treatment system, comprising a water collecting and regulating pool, a coagulation reaction sedimentation tank, an anaerobic baffled reactor, a split type tubular membrane bioreactor and a coagulant aid filling device which is used for injecting coagulant aids into the coagulation reaction sedimentation tank, wherein the split type tubular membrane bioreactor comprises an aerobic pool and a tubular membrane component; the wastewater in the water collecting and regulating pool enters the coagulation reaction sedimentation tank through a wastewater lifting pump, the supernatant after sedimentation enters the anaerobic baffled reactor, the water which is treated by the anaerobic baffled reactor enters the aerobic pool, and then, enters the tubular membrane component. The wastewater treatment system is simple in process, capital expenditure is decreased, occupied areas are small, land use areas are decreased greatly, and the operation cost is reduced. The high-efficiency ABR (anaerobic baffled reactor) removes substances which are difficult to degrade, such as phenols, in wastewater, and then the tubular membrane bioreactor is used for fine filtration and decontamination; due to the fewer components, the system is easy to control, and the steady operation time of the system is long.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a chemical and pharmaceutical wastewater treatment system. Background technique [0002] With the rapid development of the pharmaceutical industry after the middle of the 20th century, the problem of pharmaceutical wastewater pollution has attracted the attention of developed countries such as Europe, the United States, and Japan. Because pharmaceutical wastewater has the characteristics of complex composition, many types of organic pollutants, high concentration, high toxicity, deep color and high salt content, it has become difficult to treat high-concentration organic wastewater at home and abroad, and it is also the most polluted and difficult to treat in my country. One of the most common industrial wastewater, how to deal with this kind of wastewater is a difficult problem facing environmental protection today. [0003] At present, most of the commonly used treatme...

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Problems solved by technology

Due to the solid-liquid separation efficiency of the aerobic process sedimentation tank, it is difficult to maintain a relatively high concentration of sludge in the aeration tank, resulting in low volume load of the treatment device, large floor area, and considerable infrastructure investment; due to the large amount of residual sludge, sludge disposal The cost is high; sludge bulking phenomenon often occurs in this process, which makes the effluent water quality not ideal and unstable; and the process is complicated, and the management operation is not easy to manage

There are many experimental studies on anaerobic treatment process for pharmaceutical wastewater treatment, but few actual projects. The main reason is that the start-up period of this process is very long. Although it has a certain removal rate for COD, it cannot make the effluent meet the standard, and the anaerobic reactor Strict requirements for operation and operation, strict monitoring of temperature, pH value, inhibitory factors and impact load are required, which increases the difficulty of operation

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