高硫煤矸石综合利用处理方案 大学论文.doc

毕业设计（论文）题目 摘 要 高硫煤矸石以粘土岩为主，呈结核状，化学分析其全硫含量达32.12%，同时利用煤矸石中碳、硅、铁、钙、镁等共存的化学特性，以适当的工艺对其进行改性，可制备出吸附性能优良的吸附材料，用于废水处理。在处理中，废水的PH值、反应时间、粒度、加入量、温度和搅拌等因素对总铬、总镍、总汞的去除率影响较大。在吸附作用的基础上，高硫煤矸石通过加入不同配比的还原性材料，如铁粉、硫酸亚铁溶液等，进行改性处理实验。结果表明高硫煤矸石与还原铁粉的比例为100：1 O时，加热温度为200。c时，对镍的去除率明显提高；铬初始质量浓度为100 rn 时，Q(Ⅵ)与煤矸石比值为5mg／3 g，废水pH值控制在10，吸附接触时间为4 h，废水处理效果最佳，铬去除率可达90％以上。 关键词：高硫煤矸石，吸附材料，含铬、镍、汞废水，还原性成分，去除率 研究了活化温度、破碎粒度、反应温度、pH 值、酸性硅溶胶的稳定性以及陈化条件等因素对制取过程的影响确定了制取工艺找出了最佳操作条件。 英文题目 ABSTRACT 【从这里键入英文摘要内容High sulfur coal gangue is given priority to with clay rock, nodular, chemical analysis of the total sulfur content of 32.12%, and in the use of coal gangue carbon, silicon, iron, calcium, magnesium and chemical characteristics of coexistence, with proper process on the modification, preparation of the excellent performance of absorbing and adsorption material, used in wastewater treatment. In treatment, wastewater PH value, reaction time, particle size, addition amount, temperature and stirring on the removal rate of total chromium, nickel, total mercury. On the basis of adsorption, high sulfur coal gangue by adding different ratio of reducing materials, such as iron powder, such as ferrous sulfate solution, modification experiments. Results show that high sulfur coal gangue and the proportion of reduced iron powder for 100:1 O, the heating temperature is 200.C, the removal rate of nickel increased significantly;Chromium initial mass concentration for 100 rn, Q (Ⅵ) and coal gangue ratio of 5 mg / 3 g, wastewater pH value control in 10, adsorption time is 4 h contact, wastewater treatment effect is best, chromium removal rate can reach more than 90%. KEY WORDS: High sulfur coal gangue，The adsorption material，Wastewater containing chromium, nickel, mercury，Reducing composition，Removal rate 前　言 1 第1章 ×××××× 2 1.1 ×××××× 2 1.1.1 ×××××× 2 1.1.2 ×××××× 2 1.1.3 ×××××× 2 第2章 ×××××× 4 2.1 ×××××× 4 2.1.1 ×××××× 4 2.1.2 ×××××× 4 2.2 ×××××× 5 2.2.1 ×××××× 5 第3章 ×××××× 6 3.1 ×××××× 6 3.1.1 ×××××× 6