关于佛山市印染污泥现状分析及焚烧处理的研究  

ANALYSIS ON PRINTING AND DYEING SLUDGE PRESENT SITUATION IN FOSHAN AND RESEARCH ON INCINERATION

作　　者：吴浩亮 杜伟志 陈繁忠[2] 龚丽芳[2] 马迎辉[2] 

机构地区：[1]佛山市纺织丝绸学会,广东佛山528000 [2]中科院广州地化所,广东广州510640

出　　处：《化纤与纺织技术》2015年第1期23-30,34,共9页Chemical Fiber & Textile Technology

摘　　要：以佛山市印染废水污泥为研究对象,研究了印染污泥的污染特性。在对印染污泥特性研究的基础上,开展了印染污泥掺煤混烧的试验,并对其过程的环境安全性进行了研究。印染废水污泥掺煤焚烧过程中的污染排放特性与环境影响分析研究表明：焚烧可以在很短的时间内大大缩小污泥体积,但是污泥焚烧的同时产生了一定数量的二次污染物,如炉渣、飞灰、二噁英等。通过对污泥焚烧过程中重金属的含量变化研究表明,除Hg外,飞灰中的其余7种重金属的浓度均远远高于炉渣中的浓度。污泥焚烧飞灰及炉渣的浸出毒性实验表明,污泥和炉渣的浸出液中大部分重金属质量浓度都很低,远低于危废浸出毒性的限值。对印染污泥的焚烧可行性研究显示,实验测得该印染污泥的干基高位热值为6 320 kJ/kg,属于较低水平。通过对现已开展的掺煤焚烧试验烟道气中二噁英类污染物的分析表明,焚烧产生的二噁英浓度范围在0.0125～0.022 ng TEQ/Nm^3,远低于我国生活垃圾焚烧炉污染物排放限值和污泥焚烧炉污染物排放限值（1.0 ng TEQ/Nm^3）,也低于欧盟标准（0.1 ng TEQ/Nm^3）。Printing and dyeing wastewater sludge in foshan as the research object, studied the characteristics of printing and dyeing sludge pollution.On the basis of the research on characteristics of printing and dyeing sludge, carried out the printing and dyeing sludge mixed coal coal mixing experiment, and the environmental safety of process were studied.The results of research on characteristic of printing and dyeing wastewater sludge mixed coal burning pollution emission and environmental impact show that burning can greatly reduce the sludge volume in a very short period of time, but also produced a certain number of sludge incineration of secondary pollutants, such as slag、 fly ash、 dioxin and so on.By studying the variation in content of heavy metals in the sludge incineration process, it shows that except the Hg, the concentration of the remaining 7 kinds of heavy metals in fly ash are far higher than the concentration of slag.Sludge incineration fly ash and slag leaching toxicity experiment showed that most of the heavy metals in the sludge and slag leaching liquid concentration is very low, far below the limit value of waste leaching toxicity. Feasibility study of printing and dyeing sludge incineration, according to the experiment measured the printing and dyeing sludge dry basis of high calorific value of 6 320 KJ/Kg, belongs to the lower levels.By in the mixed coal burning test of dioxin-like pollutants in flue gas analysis show that the burning of dioxins concentration range at 0. 0125 ～ 0. 022 ng TEQ/Nm^3, which is far below pollutants limits of domestic refuse incinerator（1. 0 ng TEQ/Nm^3） and the pollutant limits of sludge incinerator（0. 1 ng TEQ/Nm^3）.

关 键 词：印染污泥 重金属 掺煤焚烧 二噁英 

分 类 号：X791[环境科学与工程—环境工程]