右旋糖酐制药废水循环流化产沼气实验  

A CASE STUDY ON BIOGAS ANAEROBIC DIGESTION OF DEXTRAN PHARMACEUTICAL WASTEWATER USING CIRCULATING FLUIDIZATION

作　　者：黄如一 汤萍 罗涛 李江 龙恩深[4] 梅自力 孔垂雪 HUANG Ru-yi;TANG Ping;LUO Tao;LI Jiang;LONG En-shen;MEI Zi-li;KONG Chui-xue(Biogas Institute of Ministry of Agriculture and Rural Affairs,Chengdu 610041,China;Rural Energy Office of Sichuan Province,Chengdu 610041,China;School of Veterinary Medicine,University of California-Davis,Davis CA95616,USA;College of Architecture and Environment,Sichuan University,Chengdu 610065,China)

机构地区：[1]农业农村部沼气科学研究所,成都610041 [2]四川省农村能源办公室,成都610041 [3]加利福尼亚大学戴维斯分校畜牧兽医学院,加利福尼亚戴维斯CA95616 [4]四川大学建筑与环境学院,成都610065

出　　处：《环境工程》2021年第3期48-53,共6页Environmental Engineering

基　　金：中国农业科学院科技创新工程(CAAS-ASTIP-2016-BIOMA);四川省重点研发计划(20ZDYF3255);国家科技支撑计划(2015BAD21B03)。

摘　　要：为提升生物制药废水处理效率,以某制药厂的右旋糖酐废水作为主要发酵原料,设计2种不同循环流化的水力搅拌方案,进行653.5 L规模的厌氧消化对比中试试验。1号罐为底部进水高位集中压力出水(单口),4号罐为底部进水高位分散式压力出水(四口)。28 d连续发酵实验表明,1号罐较不搅拌的对照组(0号罐)的产气率和COD去除率分别提升了45%和20%,4号罐则分别提升了58%和24%。研究结论可为指导右旋糖酐废水产气潜能提升设计和进一步机理研究提供借鉴。In this paper,in order to improve the treatment performance,the dextran wastewater from a pharmaceutical factory was used as the main fermentation raw material to carry out biogas production experiments in three 653.5 L anaerobic digesters.Digester I adopted the circulating fluidization hydraulic mixing scheme of a high-position,centralized pressure outlet(single port),and digester IV adopted a high-position,dispersed pressure outlets(four ports).The 28-day continuous fermentation experiment showed that the biogas production and COD removal rate of digester I was increased by 45%from the control group without mixing,and the COD removal rate was increased by 20%from the control group.The biogas production of digester IV was increased by 58%,and the COD removal rate was increased by 24%,from the control group.The research results could provide reference to guide the design of dextran wastewater gas production potential enhancement and further mechanism researches.

关 键 词：沼气 制药废水 搅拌 循环流化 流场形态 

分 类 号：X787[环境科学与工程—环境工程]