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
吴梓瑞 1吴华清 2陶亚亚 1信连涛1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
activated sludge/indicator bacteria/immobilization technology引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据