期刊论文

Evaluation of Printing and Dyeing Sludge Pre-treated with the Iron Flocculation Resistance Reduction Method: Incineration Characteristics

Zhou, Z.

中文

环境科学研究

1001-6929

2018

31

2

353-359

10.13198/j.issn.1001-6929.2017.03.62

国家自然科学基金项目（No.21176063）~~；

本校为第一且通讯机构

为明确印染污泥焚烧特性,提高其处理效率.以Fe-絮凝降阻法深度处理的印染污泥为研究对象,通过TG-DTG热重曲线法研究不同干燥时间(1.5、2.0、2.5、3.0、3.5和4.0 h)对深度处理的印染污泥燃烧特性的影响,并对深度处理的印染污泥燃烧过程的动力学和失重速率进行拟合.结果表明:不同干燥时间下,深度处理的印染污泥的焚烧过程均可分为4个阶段,阶段1为水蒸发阶段(15.9~106.9 ℃),阶段2为低沸点有机物析出阶段(106.9~ 235.5 ℃),阶段3为挥发分的析出和燃烧阶段(235.5~ 479.0 ℃),阶段4为难挥发物质和碳酸盐分解阶段(479.0~ 852.2 ℃),污泥最大失重率均在410.0 ℃左右,最大失重均出现在阶段3.最佳干燥时间...

Printing and dyeing sludge without any treatment might cause serious environmental pollutions. However, the treatment efficiency of printing and dyeing sludge is low. Fe-flocculated dyeing sludge burning has been proved as an excellent treatment approach, but the incineration characteristics is not clear and would affect the treatment efficiency. The influence of drying time on incineration characteristics of the textile dyeing sludges treated by Fe-flocculation reduction was studied by TG-DTG curve. The incineration was divided into four stage...