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Biochemical treatment method for pharmaceutical wastewater on basis of MBBR process

A pharmaceutical wastewater treatment method technology, applied in aerobic and anaerobic process treatment, multi-stage water treatment, biological treatment equipment, etc., to achieve the effect of ensuring the flow rate

Pending Publication Date: 2018-06-22
济宁市孚源环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the existing sewage treatment technology in the treatment of pharmaceutical wastewater, overcome the defects of the existing activated sludge sewage biochemical process pool in the aspect of microbial growth and cultivation, and provide a pharmaceutical wastewater treatment method based on the MBBR process

Method used

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  • Biochemical treatment method for pharmaceutical wastewater on basis of MBBR process
  • Biochemical treatment method for pharmaceutical wastewater on basis of MBBR process
  • Biochemical treatment method for pharmaceutical wastewater on basis of MBBR process

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Embodiment 1

[0041] The design scale of a pharmaceutical wastewater treatment plant is 25,000 m³ / d. The influent water is mainly biopharmaceutical industrial sewage discharged by Joincare Biological Products Co., Ltd. The influent water quality is as follows: BOD5≤45mg / L, CODcr≤180mg / L, SS≤ 4240 mg / L, NH3-N≤50mg / L, TN≤75mg / L, TP≤43mg / L. The plant adopts the present invention and adds 3000m³ MBBR suspension carrier. The material of the suspension carrier filler is high-density polyethylene (HDPE). It will neither deposit nor float on the water surface; the bulk density of the suspended carrier is 95±2kg / m³; the suspended filler has sufficient strength, wear resistance and long service life, and the service life is guaranteed to be at least 20 years. The intercepting screen used in the factory is perforated steel plate, made of stainless steel AISI304, and the supporting expansion bolts and other accessories for installing the intercepting screen are made of AISI304 stainless steel. After t...

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Abstract

The invention discloses a biochemical treatment method for pharmaceutical wastewater on the basis of an MBBR process and belongs to the field of industrial sewage biochemical treatment. The method involves two parallel group pools which are connected with each other and are identical in structure. Each parallel group pool comprises an MBBR anoxic zone, an MBBR aerobic zone, a sludge aerobic zone and a sludge reflux zone, wherein the MBBR anoxic zones are communicated with the MBBR aerobic zones through rectangular overflow openings in the tops of overflow partition walls, stirrers are arrangedon the inner side walls of the MBBR anoxic zones, and two suspension carrier intercepting screen meshes used for the MBBR process are arranged along the entire cross sections of the MBBR anoxic zones; the MBBR aerobic zones are communicated with the sludge aerobic zones through the intercepting screen meshed arranged along the entire cross sections of the MBBR aerobic zones. One sides of the sludge aerobic zones are provided with overflow and outflow channels; holes are formed in the outer walls of the middles of the two parallel group pools and communicated with the sludge reflux zones. According to the method, deep denitrification treatment can be carried out on the pharmaceutical wastewater with relatively low content of carbon and nitrogen so that the quality of effluent water can reach the standards stably.

Description

technical field [0001] The invention relates to a method for treating pharmaceutical wastewater based on an MBBR process, and belongs to the field of biochemical treatment of industrial sewage. Background technique [0002] With the rapid development of the pharmaceutical industry, the pollution control of pharmaceutical wastewater is becoming more and more serious. Pharmaceutical wastewater is one of the difficult-to-treat industrial wastewater. Due to different types of drugs and different production processes, it has the characteristics of large composition differences, complex components, large amount of pollutants, high COD, many refractory substances, and strong toxicity. Moreover, wastewater from pharmaceutical factories is usually discharged intermittently, and the types and quantities of products vary greatly, resulting in large changes in the quality, quantity and types of pollutants of wastewater, which brings great difficulties to treatment. Generally, the tradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/16C02F103/34
CPCC02F3/302C02F2301/043C02F2301/08C02F2103/343C02F2203/006C02F2101/16
Inventor 牛学义牛卉
Owner 济宁市孚源环保科技有限公司
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