蜂窝陶瓷固定化细胞气升式内循环生物反应器处理含糖废水的研究  

Treatment of sacchariferous wastewater by internal airlift loop bioreactor with cells immobilized onto ceramic honeycomb supports

作　　者：张永明[1,2] 俞俊棠[2] 王建龙[3] 施汉昌[3] 钱易[3] 

机构地区：[1]南昌航空工业学院环境与化学工程系,南昌330034 [2]华东理工大学生物反应器工程国家重点实验室,上海200237 [3]清华大学环境模拟与污染控制国家重点实验室,北京100084

出　　处：《环境科学学报》2000年第S1期103-106,共4页Acta Scientiae Circumstantiae

基　　金：华东理工大学生物反应器工程国家重点实验室、清华大学环境模拟与污染控制国家联合重点实验室开放基金;江西省自然科学基金(9920015)资助项目

摘　　要：研制了一种固定化细胞气升式内循环生物反应器 ,在处理含糖废水的同时生产单细胞蛋白 (SCP) .在与游离细胞处理废水进行了比较后 ,分别求出了两种方法的比生长速率和COD降解速率常数 ,其中固定化细胞降解COD的速率比游离细胞高出 1.5倍 .考察了氮源对废水COD降解和细胞生长的影响 ,实验表明 ,适当添加一些尿素可以促进含糖废水COD的降解 .进行了连续处理废水的实验 ,其有机物负荷最高可达到 15kg(COD) / (m3·d) .A new kind of bioreactor with cells immobilized onto ceramic honeycomb support was developed, and it was used to treat wastewater with sacchariferous and produce SCP at the same time. The treatment of wastewater by immobilized cells was compared with by the free cells, and the parameters of COD removal and cell proliferation were obtained respectively. As a result, the rate of COD removal by immobilized cells was as 2.5 times as that by the free cells. The influence of nitrogen source on COD removal and cell proliferation was discussed. When 0.3% of nitrogen was added into the wastewater, the rate of COD removal was promoted. Continuous treatment of the wastewater was carried out and the maximum organic loading was 15?kg(COD)/(m 3·d).

关 键 词：生物反应器 废水处理 固定化细胞 单细胞蛋白(SCP) 

分 类 号：X[环境科学与工程]