焦化废水生物处理尾水的活性炭吸附及条件优化研究

帅伟; 吴艳林; 胡芸; 吴超飞; 韦朝海

环境工程学报

, , , ,

帅伟, 吴艳林, 胡芸, 吴超飞, 韦朝海. 焦化废水生物处理尾水的活性炭吸附及条件优化研究[J]. 环境工程学报, 2010, 4(6): 1201-1207.

引用本文:

帅伟, 吴艳林, 胡芸, 吴超飞, 韦朝海. 焦化废水生物处理尾水的活性炭吸附及条件优化研究[J]. 环境工程学报, 2010, 4(6): 1201-1207.

Shuai Wei, Wu Yanlin, Hu Yun, Wu Chaofei, Wei Chaohai. Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1201-1207.

Citation:

Shuai Wei, Wu Yanlin, Hu Yun, Wu Chaofei, Wei Chaohai. Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1201-1207.

焦化废水生物处理尾水的活性炭吸附及条件优化研究

1.
华南理工大学环境科学与工程学院，广州 510006
基金项目:
国家自然科学基金资助项目（50278036）

国家高技术研究发展计划（863)项目(2006AA06Z378）

“十一五”国家科技支撑计划重点项目（2008BAC32B06-1）

广东省科技计划项目（2007B030103011）
中图分类号: X703

Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization

1.
College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
Fund Project:

摘要: 国内焦化企业废水生物处理尾水中COD、色度等指标超标的现象大多是由残留的难降解有机物造成的。针对这种现象，通过采用不同种类和孔结构的活性炭、改变炭表面化学性质、优化吸附环境3种方式对生物处理尾水中的COD成分进行强化吸附，考察炭型、表面化学性质及pH值等因素的影响，以明确焦化废水吸附法深度处理的合理炭型及其优化的条件。把已稳定运行的1 320 m3/d处理规模焦化废水A/O/H/O工艺实际工程生物处理尾水作为研究对象，试验了13种活性炭品种的吸附去除COD及色度的效果，发现甲基蓝值和丹宁酸值大的炭型其吸附容量高；而某一种炭样的吸附特性实验中，不同化学改性时表面酸性官能团含量少的活性炭有利于提高其吸附容量，低pH值条件的吸附能力高于碱性条件，曝气混合方式能够缩短吸附平衡时间。经过优选的活性炭在适宜的反应条件下能够将焦化废水生物处理尾水中的COD值及色度值分别降低至60 mg/L及20倍以下，在较低的运行费用条件下使出水达到工业循环冷却水的水质要求。
- 焦化废水 /
- 有机污染物 /
- 活性炭 /
- 选型 /
- 优化
Abstract: The over standard of the COD and the color value mainly resulted from the refractory organics existing in the biologically treated coking wastewater. In this work, the adsorption of these organic compounds on activated carbons (AC) was studied through adopting different kinds of AC, modifying the surface chemical properties of AC, and optimizing the adsorption conditions. Taking the biologically treated coking wastewater from a 1 320 m3/d scaled A/O/H/O process as an object of study, the COD and the color values of the wastewater treated by 13 kinds of AC were analyzed. The results indicated that the AC with higher methylene blue value and tannic acid value had a higher adsorption capability, while after the modification of the AC surface, AC with less acid functional groups were advantageous in enhancing the adsorption capacity. Furthermore, it was found that the AC had higher adsorption capacity under lower pH value conditions, and the aeration could shorten the adsorption equilibrium time. The COD and the color values of the biologically treated coking wastewater could be reduced by the optimal AC under a suitable reaction condition to below 60 mg/L and 20 times, respectively, which could satisfy the industrial circulating cooling water quality under low operating cost conditions.
- coking wastewater /
- organic pollutants /
- activated carbon /
- selection /
- optimization

点击查看大图

计量

文章访问数: 2129
HTML全文浏览数: 872
PDF下载数: 975
施引文献: 0

帅伟, 吴艳林, 胡芸, 吴超飞, 韦朝海. 焦化废水生物处理尾水的活性炭吸附及条件优化研究[J]. 环境工程学报, 2010, 4(6): 1201-1207.

引用本文:

帅伟, 吴艳林, 胡芸, 吴超飞, 韦朝海. 焦化废水生物处理尾水的活性炭吸附及条件优化研究[J]. 环境工程学报, 2010, 4(6): 1201-1207.

Citation:

焦化废水生物处理尾水的活性炭吸附及条件优化研究

1. 华南理工大学环境科学与工程学院，广州 510006

收稿日期: 2009-07-05

基金项目:

国家自然科学基金资助项目（50278036）

国家高技术研究发展计划（863)项目(2006AA06Z378）

“十一五”国家科技支撑计划重点项目（2008BAC32B06-1）

广东省科技计划项目（2007B030103011）

关键词:

摘要: 国内焦化企业废水生物处理尾水中COD、色度等指标超标的现象大多是由残留的难降解有机物造成的。针对这种现象，通过采用不同种类和孔结构的活性炭、改变炭表面化学性质、优化吸附环境3种方式对生物处理尾水中的COD成分进行强化吸附，考察炭型、表面化学性质及pH值等因素的影响，以明确焦化废水吸附法深度处理的合理炭型及其优化的条件。把已稳定运行的1 320 m3/d处理规模焦化废水A/O/H/O工艺实际工程生物处理尾水作为研究对象，试验了13种活性炭品种的吸附去除COD及色度的效果，发现甲基蓝值和丹宁酸值大的炭型其吸附容量高；而某一种炭样的吸附特性实验中，不同化学改性时表面酸性官能团含量少的活性炭有利于提高其吸附容量，低pH值条件的吸附能力高于碱性条件，曝气混合方式能够缩短吸附平衡时间。经过优选的活性炭在适宜的反应条件下能够将焦化废水生物处理尾水中的COD值及色度值分别降低至60 mg/L及20倍以下，在较低的运行费用条件下使出水达到工业循环冷却水的水质要求。

English Abstract

Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization

1. College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China

Received Date: 2009-07-05

Fund Project:

Keywords:

Abstract: The over standard of the COD and the color value mainly resulted from the refractory organics existing in the biologically treated coking wastewater. In this work, the adsorption of these organic compounds on activated carbons (AC) was studied through adopting different kinds of AC, modifying the surface chemical properties of AC, and optimizing the adsorption conditions. Taking the biologically treated coking wastewater from a 1 320 m3/d scaled A/O/H/O process as an object of study, the COD and the color values of the wastewater treated by 13 kinds of AC were analyzed. The results indicated that the AC with higher methylene blue value and tannic acid value had a higher adsorption capability, while after the modification of the AC surface, AC with less acid functional groups were advantageous in enhancing the adsorption capacity. Furthermore, it was found that the AC had higher adsorption capacity under lower pH value conditions, and the aeration could shorten the adsorption equilibrium time. The COD and the color values of the biologically treated coking wastewater could be reduced by the optimal AC under a suitable reaction condition to below 60 mg/L and 20 times, respectively, which could satisfy the industrial circulating cooling water quality under low operating cost conditions.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

焦化废水生物处理尾水的活性炭吸附及条件优化研究

Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization

计量

出版历程

焦化废水生物处理尾水的活性炭吸附及条件优化研究

English Abstract

Research on activated carbon adsorption of biologically treated coking wastewater and its condition optimization

全文HTML

目录