论文总字数：27735字

摘 要

随着社会经济的快速发展污水的处理量和排放量日益增大，污泥产生量也随之增大。而污泥的传统处理方式均会对环境造成不同程度的二次污染。因此，寻找新的污泥处置方式，使其稳定化、无害化、减量化、资源化，成为环境污染治理中迫切需要解决的问题。污泥热解技术具有不产生二次污染及资源化利用等特点，探索污泥的热解以及共热解成为当下的研究热点

本文针对印染污泥与废弃生物质共热解资源化利用过程进行了研究，在同步热分析的基础上，考察了印染污泥与生物质的共热解特性和原料之间的交互作用，采用CR方法求解了热化学转化过程中的平均活化能和指前因子，探索了原料的热解动力学特性，主要研究内容和结果如下：

热重分析结果表明，印染污泥单独热解过程可以分成四个阶段：水分析出阶段、可生物降解挥发性小分子有机化合物分解阶段、高分子有机物分解阶段和焦炭转化阶段，而生物质分解只有三个阶段。生物质类型、添加比和温度区间对共热解过程中的交互作用起着重要作用。在低温分解阶段（300 ℃之前），每组共热解实验的实验与计算值之差均为正，表示该温度区间内添加生物质都促进了热解。热解动力学分析结果表明，印染污泥的热解过程按照转化率α可以分成三个区间：0.1–0.55、0.55–0.75和0.75–0.95。而生物质只有两个区间：0.1‒0.75和0.75‒0.95。在共热解过程中，动力学拟合区间的个数随着混合物中印染污泥的减少而减少，当印染污泥的含量超过50%时拟合区间与印染污泥单独热解一致，反之与生物质单独热解一致。印染污泥与生物质混合共热解能够降低反应过程的活化能，改善热解特性，提高反应效率。

关键词：印染污泥 热解 生物质

Pyrolysis treatment and recycling of printing and dyeing sludge

Abstract

With the rapid development of social economy, increasing the capacity of sewage and emissions of sludge discharge also increase and sludge traditional approach will cause varying degrees of secondary pollution to the environment, therefore, looking for a new way of sludge disposal, make its stabilization harmless decrement, recycling become urgent need to solve problems in environmental pollution control sludge pyrolysis technology does not produce secondary pollution and resource utilization etc, explore the sludge pyrolysis and pyrolysis have become the focus in the present

This paper printing and dyeing sludge utilization and waste biomass pyrolysis process was studied, the synchronization, on the basis of thermal analysis, printing and dyeing sludge was investigated with biomass pyrolysis characteristics and the interaction between raw materials, adopting CR method to solve the average activation energy in the process of thermal chemical conversion and refers to the former factor, explore the pyrolysis dynamics characteristic of the raw materials, the main research contents and results are as follows

Thermogravimetric analysis results show that separate printing and dyeing sludge pyrolysis process can be divided into four stages: water precipitation phase biodegradable volatile small molecule organic compounds macromolecule organic matter decomposition phase decomposition and coke transformation stage, biomass and decomposition of biomass only three phase type add ratio and temperature range of pyrolysis process is the interaction plays an important role in low temperature decomposition stage (before 300), each group of pyrolysis experiment of the difference between the experimental and calculated values are positive, said the add biomass have promoted the pyrolysis temperature range Pyrolysis dynamics analysis results show that the pyrolysis process of printing and dyeing sludge according to the conversion of alpha can be divided into three interval: 0.1 0.55 0.55 0.75 and 0.75 0.95 and biomass only two interval: 0.1 0.75, and 0.75 0.95 in total pyrolysis process, kinetics of fitting the interval number diminishes as the mixture of printing and dyeing sludge, more than 50% when the content of printing and dyeing sludge fitting range consistent with printing and dyeing sludge pyrolysis alone, whereas in accordance with the biomass pyrolysis alone The co-pyrolysis of printing and dyeing sludge and biomass can reduce the activation energy in the reaction process, improve the pyrolysis characteristics and improve the reaction efficiency.Analysis based on the experiment, the Coats - Redfern integral method, the selection mechanism of different function, explores the printing and dyeing sludge by mistake with total pyrolysis kinetics characteristics of peanut rod, calculate the activation energy in the process of pyrolysis and refers to the former factor, has carried on the comparison and analysis, and thermogravimetric experiment process for efficient handling of dyeing sludge mixed with peanut rod provides a theoretical basis for the results show that pyrolysis can reduce the activation energy of reaction process and improve the pyrolysis characteristics, improve the reaction efficiency

Keywords: printing and dyeing sludge; pyrolysis;biomas

目录

摘要 I

Abstract II

第一章 绪论 1

1.1课题背景 1

1.1.1印染污泥介绍 2

1.2印染污泥处理技术 3

1.2.1印染污泥的稳定化 3

1.2.2印染污泥的无害化 4

1.2.3印染污泥的热烘干 4

1.2.4 印染污泥的资源化 5

1.3污泥热解研究进展 6

1.3.1 污泥热解技术 6

1.3.2生物质热解技术 7

1.3.3污泥和生物质的共热解研究 7

1.3.4催化剂对印染污泥热解的影响 8

1.4本文的研究内容和技术路线 9

1.4.1本文的研究内容 9

1.4.2本文的技术路线 10

第二章 实验原料理化特性分析 16

2.1 实验原料 16

2.2 实验仪器及分析方法 16

2.2.1 工业分析 16

2.2.2 元素分析 17

2.3 实验结果与分析 17

2.4 本章小结 17

第三章 印染污泥与生物质共热解特性研究 19

3.1实验仪器 19

3.2分析方法 19

3.2.1协同作用 19

3.2.2 热解特性指数 20

3.3 实验结果与分析 20

3.3.1 印染污泥单独热解 20

3.3.2 生物质单独热解 21

3.3.3 印染污泥与生物质共热解 22

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