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【答案】应助回帖
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unknownbq: 金币+40, 翻译EPI+1, ★★★很有帮助 2012-05-22 22:46:02
Pharmaceutical wastewater contains complex mixtures of contaminants with high levels, along with its other characteristics such as, high COD value, large quantities of difficult biodegradable, toxic, and hazardous substances, thus the pharmaceutical wastewater has gradually become one of the most important water pollution sources. Since the fermentation process is a very important part of the pharmaceutical process, the treatment of fermentation engineering pharmaceutical wastewater is particularly important.
This study focus on the preliminary designs of technological process, process parameters, structure dimensions for a medicinal amino acid fermentation industrial wastewater treatment plant. In the whole design process, we strictly followed the relevant professional regulatory requirements, referred to the relevant information and the latest national standards, according to the design requirements and innovation thinkings. Through the election of process, we established the technical process with the processing core by using pressurized Upflow anaerobic sludge blanket (UASB) and Cyclic Activated Sludge System（CASS）, supplemented by regulation pool, coagulation-sedimentation tank, and contact disinfection tank and other treatment structures. This process designed is simple, and to reduce the toxic and hazardous substances and improve the biodegradability of wastewater, by pH regulation pool and coagulation-sedimentation tank. Then the following UASB and CASS were used to realize the effective biological degradation of organic pollutants. This process eliminates the need for primary sedimentation tank, secondary sedimentation tank and sludge digestive system, which saves the investment in infrastructure and operating costs, guarantee that the effluent can meet the wastewater discharge standards, and also realize the rational utilization of water resources. |
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