活性污泥中优势指示菌的固定化技术  

Immobilized Technology of Dominant Indicator Bacteria in Activated Sludge

作　　者：吴梓瑞 吴华清 陶亚亚 信连涛 WU Zirui;WU Huaqing;TAO Yaya;XIN Liantao(College of Chemical and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Mayinglong Pharmaceutical Group Co.,Ltd.,Wuhan 430064,China)

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042 [2]马应龙药业集团股份有限公司,湖北武汉430064

出　　处：《生物化工》2024年第5期83-87,共5页Biological Chemical Engineering

基　　金：广东省2021高校教师特色创新研究项目(2021JNHB04)。

摘　　要：以某中成制药企业处理工业废水的活性污泥为研究对象,通过分离纯化技术获得1株优势指示菌(放线菌),通过单因素和正交试验确立固定化包埋参数。结果表明,选取海藻酸钙凝胶法包埋,最佳配比为海藻酸钠2.0%,氯化钙4.0%(质量分数);选取海藻酸钠-明胶协同固定法包埋,最佳配比为海藻酸钠5.5%,明胶1.3%,氯化钙0.55%(质量分数)。采用海藻酸钙凝胶法制备固定化颗粒净化效果更好,运行72 h污水COD值由26.47 mg/L下降到10.59 mg/L。Taking the activated sludge of industrial wastewater treated by a Chinese pharmaceutical company as the research object,the project team obtained a dominant indicator bacterium(Actinomycete)through separation and purification technology,and the immobilized embedding parameters are established by single factor and orthogonal tests.The results show that the best proportion of calcium alginate gel method is sodium alginate 2.0%and calcium chloride 4.0%(mass ratio);the optimal ratio is sodium alginate 5.5%,gelatin 1.3%and calcium chloride 0.55%(mass ratio)when sodium alginate and gelatin synergistic fixation method is selected.The purification effect of immobilized particles prepared by calcium alginate gel method is better.and the COD value of wastewater decreased from 26.47 mg/L to 10.59 mg/L after 72 h of operation.

关 键 词：活性污泥 指示菌 固定化技术 

分 类 号：X52[环境科学与工程—环境工程]