厌氧反应器处理猪粪废水研究

论文编号:HG138  论文字数:13771,页数:37

摘 要：本文主要研究连续式外循环反应器处理猪粪废水的最佳工艺条件。连续式外循环反应器实验利用间歇式反应器单因素分析法，通过改变反应的每一个工艺条件（如反应初始浓度、反应温度、接种污泥量、反应初始PH），从而找出活性污泥处理粪水最佳的反应工艺条件。经实验研究发现，当只改变反应初始浓度（即初始COD）而其他反应条件不变时，可知初始COD为4000mg/L左右的反应速率和产气量是最佳的；当反应温度改变、初始COD为4000mg/L且其他反应条件一致时，反应在35℃下的速率是最快的；对改变PH的实验中发现，当反应的初始PH为7.0左右时（即中性时）反应的条件最佳。以上条件在连续化外循环反应器中进行试验，甲烷含量达到民用沼气要求，以及污水化学需氧量降至排放的要求。
 关键词：连续式外循环反应器；甲烷含量；工艺条件；化学需氧量

Abstract: This article　continuous loop reactor outside the optimum conditions of pig manure wastewater. Outside the continuous type circulates the reactor experiment use intermittence type reactor single factor analytic method, through change response each technological conditions (for example response initial density, reaction temperature, vaccination sludge quantity, response initial PH), thus discovers the active sludge processing excrement water best response technological conditions.  The experimental study found that only change when the initial reaction concentration (ie the initial COD) and other reaction conditions remaining unchanged, we can see the initial COD was 4000mg / L around the reaction rate and gas production is the best; when the temperature changes , the initial COD was 4000mg / L and the other the same reaction conditions, the reaction rate at 35 ℃ is the fastest; for changing the PH of the experiment found that when the initial reaction of PH 7.0 or so (that is, when neutral ) the best reaction conditions. These conditions in a continuous loop reactor Outsider experiment, methane gas to civilian requirements, and reduced chemical oxygen demand of sewage discharge requirements.

Keywords：Outside the continuous type circulates the reactor; Methane content; Technological conditions; Chemical oxygen demand

目  录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
 1.1 厌氧反应器设计背景和意义 1
 1.2 厌氧处理原理 3 
 1.3 厌氧菌特性 5
 1.4 污泥颗粒的性质 8
2. 实验部分 10
 2.1间歇反应器  10
 2.2 连续化外循环反应器 13
3. 结果与讨论 18
 3.1 单因素工艺条件的研究    18
 3.2 连续化外循环状态下工艺条件的研究 26
4．总结与展望 30
致谢 31
参考文献 32