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COD/SO32-值对烟道气含硫废碱液厌氧消化的影响
Effect of COD/SO32- Ratio to Flue Gas Biodesulfurization
【摘要】 通过利用UASB反应器,考察了COD和亚硫酸盐浓度的比值对烟道气含硫废碱液厌氧消化的影响。实验表明,在HRT为36h,SO32-负荷为0.48～0.56kg/(m·3d),SO32-浓度为800mg/L条件下:COD/SO32-比值决定了SO32-的去除率。当比值为1时,SO32-的还原率为53%;当比值为1.5时,SO32-还原率为68%;比值为2时,SO32-的还原率在80%以上;当比值为3时,SO32-还原率先上升至87%再下降到75%。
【Abstract】 Effect of COD and SO32-ratio to flue gas biodesulfurization was studied by UASB reactor.Results showed that under the condition of hydraulic retention time 36h,SO32-load rate 0.48～0.56kg(/m·3d),SO32-concentration 800mg/L,removal rate of SO32-was affected by COD/SO32-ratio,with removal efficiency of SO32-more than 53%,68% and 80% at the ratio of 1,1.5 and 2 respectively.At the ratio of 3,removal efficiency of SO32-was first increased to 87%,and then decreased below 75%.
【基金】 广西科学基金项目(桂科基0575098);广西高校百名中青年学科带头人计划资助(RC20060830015);广西壮族自治区重点建设实验室
- 【文献出处】 环境科学与技术 ,Environmental Science & Technology , 编辑部邮箱 ,2009年05期
- 【分类号】X703
- 【被引频次】2
- 【下载频次】61