PDF全文下载: 2014040374
鲁风芹, 李丛丛, 陈睿
(青岛科技大学 环境与安全工程学院,山东 青岛 266042)
摘要: 采用实验室模拟废水进行实验,研究了硫酸盐转化为硫化物的条件,包括厌氧环境中有菌和无菌情况下硫酸盐(SO2-4)的浓度,反应时间,pH和温度对转化结果的影响,以出水硫化物的生成量为测定指标。得出结论:废水中硫酸盐含量为1 500 mg·L-1,时间36 h,pH介于68~70,温度在30~35 ℃之间,硫酸盐还原菌(Sulfate reducing bacteria,SRB)的生长活性较高,硫化物的生成量最大,为146 mg·L-1。
关键词: 硫酸盐; 硫酸盐还原菌; 硫化物; 厌氧
中图分类号: TU 45文献标志码: A
收稿日期: 20130507
作者简介: 鲁风芹(1956—),女,副教授.
Factors Affecting the Sulfide Production in the Sulfate Wastewater Under Anaerobic Condition
LU Fengqin, LI Congcong, CHEN Rui
(CollegeofEnvironmentand Safety Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)
Abstract: Several factors affecting the sulfate converting into sulfide between anaerobic bacterial and aseptic conditions were discussed,including SO2-4 dosage, reaction time,pH and temperature by simulation experiment. And the production of sulfide was the mensurate index.The result is that when the sulfate content in wastewater is 1 500 mg·L-1, reaction time is 36 h, pH between 68—72, the temperature between 30—35 ℃, the growth activity of the sulfate reducing bacteria is higher, and the generation of sulfide can reach 146 mg·L-1.
Key words: sulfate; sulfate reducing bacteria; sulfide; anaerobic