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| 多级A／O工艺处理制革废水的影响因素研究 | |
| 引用本文： | 陈青松,郑群敦,杨林,杨德敏.多级A／O工艺处理制革废水的影响因素研究[J].环境科学与管理,2013,38(6):111-116. |
| 作者姓名： | 陈青松 郑群敦 杨林 杨德敏 |
| 作者单位： | 1. 外生成矿与矿山环境重庆市重点实验室(重庆地质矿产研究院),重庆400042;煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 2. 外生成矿与矿山环境重庆市重点实验室(重庆地质矿产研究院),重庆,400042 3. 煤炭资源与安全开采国家重点实验室重庆研究中心,重庆,400042 |
| 摘 要： | 采用多级A／O工艺小试装置开展制革废水处理的相关研究，重点考察温度、pH值、各级进水流量分配比、单级缺氧／好氧比、HRT等因素对废水处理效果的影响。确立优化实验条件，多级A／O工艺处理制革废水的适宜参数为水温15℃以上，pH值在7．5～8．5，进水分配比为4：3：2：1，HRT为24h。在优化的实验条件下，多级A／O出水COD和NH4一N分别在150mg·L-1和10mg·L-1以下，去除率分别可达86％和90％。实验结果表明，多级A／O工艺是一种新型的高效生物脱氮工艺，具有无需内回流、耐冲击负荷、对碳源和溶解氧利用较为充分等优点。 |
| 关 键 词： | 制革废水 多级A O工艺 生物脱氮 |
Experimental Research on Tannery Wastewater Treatment by Multistage A/O Process |
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| Chen Qingsong , Zheng Qundun , Yang Lin , Yang Demin.Experimental Research on Tannery Wastewater Treatment by Multistage A/O Process[J].Environmental Science and Management,2013,38(6):111-116. | |
| Authors: | Chen Qingsong Zheng Qundun Yang Lin Yang Demin |
| Institution: | 1. Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China; 2. Chongqing Research Center of State Key Laboratory of Coal Resources and Safe Mining, Chongqing 400042, China) |
| Abstract: | Tannery wastewater was treated by a pilot - scale multistage A/O process, and the temperature, pH value, inflow distribution ratio, anoxic/oxic ratio and HRT were specially discussed. The optimal conditions are temperatures higher than 15℃, pH7.5 - 8. 5, inflow distribution ratio 4 ： 3 ： 2 ： 1 and HRT 24 h. Under the optimal condition, the effluent values of COD and ammonia nitrogen from the multistage A/O process were blow 150 mg L-1 and 10 mg L-1 , while the removal rate were 86% and 90%, respectively. The experimental results showed that multistage A/O was a new efficient biological denitrification process, having the advantages of no nitrification return, high capacity of resisting shock load and making full use of carbon re- source and dissolved oxygen. |
| Keywords: | tannery wastewater multistage A/O process biodenitrogenation |
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