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| 分级循环—生化法处理煤造气含氰废水 | |
| 引用本文： | 刘自凤. 分级循环—生化法处理煤造气含氰废水[J]. 化工环保, 1995, 15(2): 83-86 |
| 作者姓名： | 刘自凤 |
| 作者单位： | 南京化学工业公司 |
| 摘 要： | 将含有大量悬浮物的洗气箱废水进行初级沉降后，约３／４的废水返回洗气箱用作洗涤水，其余的与洗气塔废水混合进地沉降池去除悬浮物，上清液送至生物滤池进行生化处理去除含氰人合物其他有机物。生化出水经絮凝、澄清后回用于洗气箱和洗气塔实现了废水闭路循环。他 |
| 关 键 词： | 循环 生化处理 含氰废水 煤造气 废水处理 |
Application of Step Recirculation-Biological Treatment to Cyanide-Bearing Wastewater from Coal Gas Process |
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| Liu Zifeng. Application of Step Recirculation-Biological Treatment to Cyanide-Bearing Wastewater from Coal Gas Process[J]. Environmental Protection of Chemical Industry, 1995, 15(2): 83-86 | |
| Authors: | Liu Zifeng |
| Abstract: | Thet wastewater from scrubbing box is treated in a primary sedimentation tank tOremove high concentration SS.Then about 3 /4 of wastewater is returned to scrubbingbox as washing water. The rest is nixed with the wastewater from scrubbing tower andsettles in a secondary sedimentation tank to remove SS.The supernatant is treated by a biological filter to remove cyanide and other organics.The effluent from biological treatmentafter flocculation is returned to scrubbing box and scrubbing tower.Therefore a closedrecirculation system of the wastewater is realized. |
| Keywords: | recirculation biological treatment cyanide bearing wastewater coal gas process. |
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