煤气化废水处理方法综述中 国 矿 业 大 学（北京）题目：煤气化废水处理方法综述学生姓名：赵柯学 号：TSP0702005136Q 专业：环境工程指导教师：王春荣2007 年 12 月煤气化废水处理方法综述摘要：煤气化是减少燃煤污染的有效途径，但气化过程中产生的废水会对环境造成污染。本文针对废水中主要污染物的不同， 对其处理方法、 治理技术、工艺分别进行了论述，并提出了建议。分别介绍了煤气化废水中有用物质的回收，生化处理方法以及深度处理方法。具体介绍了废水中酚和氨的回收，采用活性污泥法、生物铁法，炭—生物铁法、缺氧—好氧（ A— O）法对废水进行处理，采用活性炭吸附法和混凝沉淀法对废水进行深度处理。关键词：煤气化；废水处理; 活性污泥法THE SUMMARY OF WASTEWATER TREATMENT TECHNOLOGY OF COAL GASIFICATION Abstract gasification is an effective way to reduce the coal pollution, but the wastewater caused by the coal gasification process will pollution environmental. According to different main pollutants of wastewater, the disposal methods, treatment technology and techniques are separately discussed, and suggestion is put forward. Useful materials recovered from the wastewater, biological and chemistry treatment, deeply treatment are introduced in this article. Phenol and the ammonia recycled from wastewater and wastewater treated by activated sludge, biological iron, charcoal- biological iron and wastewater deeply treated by acticarbon absorption and Coagulation precipitation are introduced in this paper. Key word : coal gasification, wastewater treatment, activated sludge 1 引言煤气化废水是煤制焦炭、煤气净化及焦化产品回收过程中产生的高浓度有机废水，属于焦化废水的一种。水质成分复杂，污染物浓度高。废水中含有大量的酚类、联苯、吡啶、吲哚和喹啉等有机污染物，还含有氰、无机氟离子和氨氮等有毒有害物质，污染物色度高，属较难生化降解的高浓度有机工业废水。对煤气化废水的处理，单纯靠物理、物理化学、化学的方法进行处理，难以达到排放标准，往往需要通过由几种方法组成的处理系统，才能达到处理要求的...
