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Fe3+存在下溶解氧浓度对活性污泥处理制浆中段废水的影响

作者:时间:2016-10-12点击数:

PDF全文下载:2016050508

张恒1a,2, 孙嘉浩1a, 王传路1a, 蓝惠霞1b, 陈睿1b

(1.青岛科技大学a.化工学院;b.环境与安全工程学院,山东 青岛 266042;2.齐鲁工业大学 制浆造纸科学与技术教育部重点实验室,山东 济南 250353)

摘要: 研究了Fe3+存在下,溶解氧(DO)浓度对活性污泥系统处理制浆中段废水的影响,并以不加Fe3+的系统作为对照。DO浓度在1.5~2.5 mg·L-1范围内,加铁组和空白组COD和UV-254去除率均较高,加铁组基本优于空白组;DO浓度在0.5~1.0 mg·L-1时,加铁组处理效果明显优于空白组。在所实验的DO浓度范围,加铁组脱氢酶活性、污泥絮凝性能均优于空白组。

关键词:  活性污泥; Fe3+; DO浓度; 制浆中段废水

中图分类号: X 793文献标志码: A

Effect of DO Concentration on Treatment of Pulping Middle-stage Effluent by Aerobic Activated Sludge in the Presence of Fe3+

ZHANG Heng1a,2, SUN Jiahao1a, WANG Chuanlu1a, LAN Huixia1b, CHEN Rui1b

(1.a.College of Chemical Engineering; b.College of Environment and Safety Engineering,QingdaoUniversityof

Science and Technology,Qingdao266042,China; 2.Key Laboratory of Pulp and Paper Science and Technology

of Ministry of Education of China, Qilu University of Technology, Jinan 250353, China)

Abstract: Effect of DO concentration on treatment of pulping middle-stage effluent by aerobic activated sludge in the presence of Fe3+ was studied, with sludge without Fe3+ as blank control. COD and UV-254 removal efficiency in both groups achieved high when the concentration of DO was 1.5—2.5 mg ·L-1 but the basic iron group is better than the blank group. The present of Fe3+ enhanced the treatment effect, especially when the concentration of DO was 0.5—1.0 mg·L-1, the improving effect was more obvious. The dehydrogenase concentration and the flocculation ability of the sludge were also studied. Compared to the blank control, both the activity and flocculation ability of the sludge with Fe3+ were better, and the DO concentration was in the range test.

Key words: aerobic activated sludge; Fe3+; DO concentration; pulping middlestage effluent

 收稿日期: 20150402

基金项目: 山东省科技重大专项(新兴产业)项目(2015ZDXX0403B03);制浆造纸科学与技术教育部重点实验室开放基金项目(08031337).

作者简介: 张恒(1973—),男,副教授.

文章编号: 16726987(2016)05050804; DOI: 10.16351/j.16726987.2016.05.007

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