摘要
采用固定化微生物技术深度处理煤间接制油二级反渗透浓水,考察固定化耐盐复合菌对二级反渗透浓水中COD的去除效果。结果表明,初始COD为86.1 mg/L的二级反渗透浓水经由p H为6.98、温度35℃、固定化耐盐复合菌投加质量分数为5%的优化条件下反应72 h,废水中的COD降至38.4 mg/L,去除率为55.40%。采用活性污泥法、固定化耐盐复合菌和"固定化耐盐复合菌+活性污泥法"组合的方式进行对比实验,3种工艺中COD去除率分别为41.81%、54.59%和55.63%。固定化微生物技术可以强化活性污泥法的处理效果,二者之间有良好的协同作用,可以有效的深度处理高盐含量的煤间接制油二级反渗透浓水。
The immobilized microorganism was used to treat the secondary reverse osmosis concentrate （SROC） which were from the indirect coal-to-oil. The COD removal effect of SROC was studied. The result showed that the COD of the SROC dropped to 38.4 mg/L from 86.1 mg/L after reaction of 72 h, under pH 6.98, 35 ℃ condition, the agent dosage mass fraction of immobilized salt tolerant compound bacteria was 5%, and the removal rate of COD was 55.40%. Then the result from comparison experiment in contrast with using activated sludge, immobilized salt tolerant compound bacteria and their combined process showed that the removal rate of COD were 41.81%, 54.59% and 55.63%, respectively. The immobilized microorganism can strengthen the treatment effect of activated sludge process due to the good synergistic effects between them. The immobilized microorganism is an effective advanced treatment technology for the high salt-contenting SROC.
作者
尹莉
乔丽丽
贾琰
耿翠玉
乔瑞平
王玉慧
YIN Li QIAO Lili JIA Yah GENG Cuiyu QIAO Ruiping WANG Yuhui(Poten Environment Group Co., Ltd, Research ＆ Development Center, Beijing 100082, China Guizhou Province Environmental Monitoring Center, Guiyang 550081, China Poten Environment Engineering （Beijing） Co., Ltd, Beijing 100082, China)
出处
《水处理技术》
CAS
CSCD
北大核心
2017年第2期90-93,共4页
Technology of Water Treatment
基金
博天环境集团股份有限公司创新领域前沿项目(YA-2016-001)
关键词
固定化耐盐复合菌
生化处理
活性污泥
二级反渗透浓水
Immobilized salt tolerant compound bacteria
biochemical treatment
activated sludge
secondary reverse osmosis concentrate （SROC）
