优秀毕业论文（设计）_污泥水煤浆的成浆性研究.docxVIP

摘要近年来城市污水日渐增多，而作为其副产物的污泥产量也日益增多，如何高效处理城市污泥逐渐成为一个重要问题。目前常用的污泥处理方法有：浓缩、消化、脱水、干燥、焚烧、固化和综合利用。另外还有填埋场卫生填埋的处置方法。其中，污泥浓缩、消化和脱水是目前应用最广的处理方法。由于污泥的高含水率及具有一定热值的特点，污泥与煤掺混制备污泥水煤浆是一种很好的污泥处理方式。本实验用城市污泥与煤粉直接混合研制污泥水煤浆,使污泥中的水分、热值得到充分利用,对城市污泥的资源化、能源化利用和处置进行了有益的的探索。本文主要对污泥水煤浆的成浆性进行实验研究。首先探索了水煤浆的制备工艺，通过研究不同的煤粉目数比例，添加剂的添加量以及添加剂种类对水煤浆成浆性的影响选取了最优的制备条件，为污泥水煤浆的制备奠定了基础。然后在该制备条件下进行了污泥水煤浆的成浆性研究，研究分析了污泥水煤浆制备过程中使用脱水污泥、未脱水污泥以及预处理过的污泥对水煤浆成浆性的影响。关键词：城市污泥 水煤浆 污泥水煤浆 成浆性 AbstractIn recent years, the increasing number of urban sewage, and sludge as a byproduct of the production is also increasing, how to efficiently deal with municipal sewage sludge is becoming an important issue. Sludge treatment methods currently usedare:concentration, digestion, dewatering, drying, incineration, solidification and utilization. In addition there are disposal landfill for sanitary landfill. Wherein, sludge thickening, digestion and dewatering is currently the most widely used approach. Due to the high moisture content sludge characteristics and a certain calorific value of the sludge and coal blending it is a good preparation CWS sludge sludge treatment. The experiment in municipal sludge directly mixed with pulverized coal-water slurry developed sludge, the sludge in the water, the heat is worth to take advantage of urban sludge recycling, energy utilization and disposal of a useful exploration.This paper focuses on coal-water slurry sludge into a slurry of the experimental study. First explore the preparation of coal-water slurry, by studying the ratio of the number of different mesh pulverized coal, the added amount and types of additives additives to influence the slurry properties of CWS select the optimal preparation conditions for sludge CWS Preparation of the foundation. Then under the preparation conditions were slurried sludge CWS study, the researchers analyzed the preparation of coal-water slurry sludge used in sludge dewatering, sludge and pre-treated sludge dewatering CWS not the impact of a pulp.Key w