| 微生物絮凝剂的研制及其絮凝条件 |
| 摘要点击 2159 全文点击 3137 投稿时间：1999-03-22 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 微生物 絮凝剂 废水处理 |
| 英文关键词 microbe,coagulant,wastewater treatment. |
|
| 中文摘要 |
| 用ＧＣＩ培养基从曲阳污水厂污泥和俞泾浦底泥中分离出３株产生高絮凝活性的微生物，所研制出的微生物絮凝剂对高岭土悬浊液、土壤悬浊液和碱性染料废水均有良好的净化效果．在对微生物絮凝剂的助凝作用上，ＣａＯ的效果明显优于ＣａＣｌ2．微生物絮凝剂（液体）适宜的投加量为１．０％ ，相应的助凝剂ＣａＯ（１．０％ 浓度）适宜投加量为2.0％．在研制微生物絮凝剂的过程中，适宜的摇瓶培养时间为７２ｈ，絮凝剂分离时适宜的离心条件为中高速（５０００～１００００ｒ／ｍ ｉｎ）．离心速度太高、时间太长不仅造成离心设备投资和能耗的增加，而且会减少离心上清液中絮凝物质的含量，从而导致絮凝效果的降低 |
| 英文摘要 |
| Microbes which can produce bio coagulants were isolated from activated sludge of the Quyang Wastewater Works and also from the settlings of the Yujing Creek.Several kinds of polluted waters such as kaolin suspension can be purified efficiently by the use of the bio coagulants produced in this research.Coagulation can be apparently improved when using calcium oxide as the coagulating aid. The excellent bio coagulants can be produced when a 72 hour's continued cultivation was performed.In the process of bio coagulant's isolation,a proper centrifugal conditions was suggested because too strong centrifugation may result obvious decrease in the coagulating efficiencies. |
