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GAN Zhong xue(甘中学),LIU Zhen xue(刘振学),GU Jun jie(谷俊杰),SONG Qing feng(宋庆峰) 대전대학교 환경문제연구소 2015 환경문제연구소 논문집 Vol.19 No.-
A large amount of effluent water would be produced from low temperature coal catalytic gasification (LTCCG) developed by ENN Co, Ltd, which located at Langfang, Hebei Province. Many phenol homologous compounds and a large amount of other organic compounds were contained in this effluent water, but the overall concentration of the organic compounds was not very high (CODCr value was about several thousands mg/L). Too high cost would occur if treating it with a traditional liquid-liquid extraction process, and it was a waste of resources if the effluent water was directly purified with biochemical technology. In this paper, a decontaminating and recycling technique was developed for an effluent water, and a two-step technique includes flocculation-recycling and ion exchange adsorption-elution processes. By this two-step process, the CODCr value of the final outlet water was decreased to meet the related national standards, and at least 90% of the organics in the effluent water could be recovered. 正在开发的河北廊坊新奥集团煤低温气化过程中产生大量废水,其中含有多种苯酚同系物及大量其它有机物,但其有机物总浓度并不是很高(CODCr为几千mg/L)。用传统的液液萃取技术进行处理成本太高,直接用生化法处理又有些资源浪费。本文针对其特点开发的净化加资源化技术包括絮沉回收和吸附-洗脱两段工艺,使最终废水CODCr降到符合废水排放的国家标准,并可将废水中90%以上的有机物加以回收。
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