兰炭废水.doc

摘要
本论文通过自行设计制作的二维电极反应器,对焦化厂的兰炭废水进行电化学氧化降解,主要是去除废水中的COD和氨氮。本实验主要是利用电化学氧化中的电芬顿法,详细分析电解电流、电解时间、废水原始pH值、极板间距及双氧水投加量等因素在二维电极体系中对污染物质降解效果的影响。
研究二维电极电催化降解兰炭废水的影响因素。由实验数据表明:适宜的处理条件是:电解电流为5A,电解时间210min,,电解质(Na2SO4)浓度为10g/L,双氧水投加量1mL/100mL废水,不加酸碱调节pH值,常温反应。COD的去除率最大接近80%,氨氮的去除率大于80%。
关键词:二维电极;电Fenton法;COD;氨氮
ABSTRACT
In this paper the design and manufacture by two-dimensional electrode to the reactor, the orchid carbon wastewater plant for electrochemical oxidation degradation, mainly is the Chemical oxygen demand (COD) removal and ammonia nitrogen (NH3-N) wastewater. This experiment is mainly the electricity using electrochemical oxidation fenton reaction method, detailed analysis of electrolytic current, electrolytic time, wastewater primitive pH value, plate spacing and hydrogen peroxide dosing quantity factors in two-dimensional electrode system in the effects of pollution degradation.
To study the two-dimension electrode electricity catalytic degradation the influence factors of Abram carbon wastewater .By the experimental data show that economic and effective treatment condition: electrolytic current as 5A, electrolytic time 210min, plate spacing for cm, electrolyte (Na2SO4) concentration of 10g/L, double oxygen dosing quantity 1mL / 100mL canister wastewater, do not add acid-base adjust pH value, the normal reaction Chemical oxygen demand (COD) removal efficiency of maximum close to 80%, Ammonium-Nitrogen (NH3-N) removal rate more than 80%.
Keywords: Two-dimensional electrode electricity;Fenton; Chemical oxygen demand (COD);Ammonium-Nitrogen (NH3-N)
目录
第一章绪论 1
序言 1
兰炭废水的特性及危害 2
兰炭废水的来源 3
水中有机污染物去除有关的基本概念 3
电化学法处理废水 4
电化学方法的提出 4
电化学技术的特点 5
电化学电解法处理废水的影响因素 5
二维电极处理兰炭废水 7
电芬顿法的基本原理及研究现状 7
电芬顿法的原理 7
Fenton试剂法的发展历史 8
电芬顿法分类及应用 9
电芬顿法的反应机理 10
石墨气体电极 10
石墨气体电极的概况 10
石墨气体电极的制备 11
本实验研究的内容、目的和意义 11
第二章实验部分 14
实验原材料及试验装置 14
实验废水