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| Research on Advanced Treatment of Coal Chemical Wastewater by Granular Activated Carbon Adsorption Method |
| XIE Tian1，HAN Xiang-kui1,2，WANG Xiao-ling1,3，DONG Li-peng1，ZHANG Fang1，
HU Jia-xin3 |
| 1. College of Municipal and Environmental Engineering of Jilin Architecture University, Changchun 130118, China；2. Changchun Architecture College, Changchun 130604, China; 3.College of Environment and Resources of Jilin University, Changchun 130021, China |
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Abstract Coal chemical industry wastewater contains lots of organics and toxic substance. This kind of high industrial wastewater is hard to be biodegraded due to its complex component and high pollution chroma. A small amount of toxic substance, chromaticity and COD still exceed the standard in coal chemical wastewater, after pretreated by regular method and biological treatment. Activated carbon adsorption method was used to dispose coal chemical wastewater. The results show that when the best dosage of activated carbon is 60 g/L, the adsorption saturation time is 2.9 h.
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