摘要
目前焦化厂面临干熄焦及废水零排放的双重政策压力,而采用活性炭吸附法可以对焦化废水进行深度处理。本研究采用配煤法以山东气肥煤、太西无烟煤和大同弱黏煤为原料,通过调整原料配比及工艺条件制备焦化废水深度处理的最佳活性炭。以强度、碘值及亚甲基蓝值为指标,确定活性炭最佳原料配比。用已制备的活性炭对焦化废水进行动态吸附试验,试验结果表明,活性炭动态吸附焦化废水流速为10 mL/min,活性炭床层高度为400 mm较为合理,5^#活性炭静态和动态焦化废水处理效果最好。因此,焦化废水深度处理用活性炭的最佳制备条件为：原料配比山东气肥煤：太西无烟煤：大同弱黏煤为3：4：3,炭化温度为600℃,活化温度为890℃,烧失率为59.8%。
Coking plants are under high pressure of both dry quenching and zero discharge of wastewater, and activated carbon adsorption could be used for advanced treatment of coking wastewater. In this paper, activated carbons were prepared from Shandong gas-fat coal, Taixi anthracite and Datong weakly-caking coal by coal-blending method. Activated carbon associated with the best efficiency for coking wastewater treatment was received by adjusting the ratios of raw materials and process conditions. According to the evaluation of the hardness, iodine number and methylene blue adsorption, the optimum raw material ratio was determined. The dynamic adsorption effects of prepared activated carbons on coking wastewater treatment under different conditions were experimented respectively. The results show that reasonable flow velocity is 10 mL/min and the optimal bed height of activated carbons is 400 mm. Therefore, the optimal preparation conditions of activated carbons for coking water advanced treatment are 3 ： 4 ： 3 of raw material ratio, 600℃ of carbonization temperature, 890℃ of activation temperature and 59.8% of ignition loss rate.
出处
《中国煤炭》
北大核心
2016年第9期75-79,85,共6页
China Coal
关键词
活性炭
吸附
焦化废水
化学需氧量
activated carbon, adsorption, coking wastewater, COD
作者简介
刘纯玮（1993-），女，山东肥城人，中国矿业大学硕士研究生在读，主要研究领域为煤基活性炭的吸附性能研究。
