摘要
采用超滤+反渗透组合技术对某焦化厂焦化废水进行了深度处理试验研究,结果表明浸没式超滤单元对悬浮物去除效果明显,平均去除率达98.8%;反渗透装置在70%回收率的条件下,对水中COD、氨氮、总硬度及Cl-的平均去除率分别达到94.6%,75.9%,98.3%和98.6%.超滤膜产水通量及运行情况稳定,反渗透膜系统运行稳定,化学清洗周期较长.结论表明采用"超滤+反渗透双膜工艺对焦化废水进行深度处理,可以保证出水水质达到回用水标准.
A study was made on advanced treatment of coking wastewater by UF（ultrafiltration menbrane） and RO（reverse osmosis）.The results showed that the removal efficiency of SS could reach as high as reach 98.8% by UF,and the average removal efficiency of COD,NH3-N,total hardness and Cl-could be obtained as 94.6%,75.9%,98.3% and 98.6% respectively,andby RO with the recovery ratio as 70%.Besides,the whole system run steadily with high-throughput for UF and long cycle of chemical washing for RO.The study shows that the application of UF and RO for advanced treatment of coking wastewater can ensure the water quality meeting the standard of reused water.
出处
《佳木斯大学学报（自然科学版）》
CAS
2012年第2期250-253,共4页
Journal of Jiamusi University：Natural Science Edition
关键词
双膜法
焦化废水
深度处理
combination membrane technology
coking wastewater
advanced treatment
