摘要
应用离子束为诱变因素,对活性污泥进行辐照处理,研究经驯化培育后,处理一定浓度的焦化废水的结果表明:活性污泥的性能及数量的评价指标、生化指标、污泥增长率以及与污染负荷等有明显的变化,经离子束照射处理后活性污泥的SV30值为11.0%~14.0%,SVI值为34.97~42.02 mL/g,辐照后的活性污泥SVI值低于未辐照活性污泥的SVI值,MLSS值在2 940~3 515 mg/L,污泥增长率变化范围为17.17%^-2.00%,最佳CODcr去除率为92.17%,最佳氨氮去除率可达到94.64%,挥发酚去除率效果最好,可达到99.83%,处理效果优于未辐照前。
The activated sludge was induced by ion beam irradiation with various irradiation dosage in order to treat the coke-plant wastewater. The experiment results show that the performance of the activated sludge was improved. After the irradiation, the 30-min settled sludge volume（SV30） was between 11.0% and 14.0% ,the sludge volume index（SVI） was between 34. 97 mL/g and 42.02 mL/g , which was lower than that by no irradiation, the concentration of mixed liquor suspended solids （MLSS） was between 2 940 mg/L and 3 515 mg/L, and the increasing rate of sludge ranged from -2. 00%to 17.17%. The optimal removal efficiency of CODcr, NH3-N, and volatile phenol was 92.17% ,94.64% and 99.83%respectively,which was much better than that before irradiation.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第6期672-675,680,共5页
Journal of Hefei University of Technology：Natural Science
基金
安徽省高等学校青年教师科研资助计划资助项目(2005jq1020)
关键词
活性污泥
诱变
离子束
焦化废水
处理
activated sludge
radiation
ion beam
coke-plant wastewater
treatment
