间歇式厌氧反应器处理猪粪废水工艺条件优化研究

范文编号:HG080  范文字数:11958,页数:29

摘 要：本文利用单因素析因实验，对间歇式厌氧反应器处理猪粪废水的最佳工艺条件进行了探索研究。实验研究结果显示：底物粪水消耗速率和初始COD值高低关系不大，当初始COD为4000mg/L左右时，产气量最大，厌氧反应器启动运行时，可以直接采取原水进样；当反应温度为35℃时，中温菌活性最佳，猪粪废水中的COD下降速率最快，该温度时，产气量最大，实际生产中厌氧反应器温度应保持35℃水平上；350mL粪水，配加100ml污泥时，猪粪废水中的COD变化速率最快，同时产气量最大，而且所需的时间最少，0.33天便有气体产生，表明此时单位体积中微生物所具有的营养物比例处于最佳营养状态；根据猪粪废水中的不同初始COD值时，其下降速率变化不大，以及当初始PH为8.04时，仍产生较多的二氧化碳，说明产酸菌具有较大的PH适应范围，但产甲烷菌只能在PH值为6.9附近很小范围内活性强，超过该范围活性大大降低，产甲烷菌对PH值十分敏感。

关键词：间歇式；厌氧反应器；单因素分析法；最佳工艺条件

Batch anaerobic reactor treating piggery
wastewater process conditions
Abstract: In this paper, single-factor factorial experiment, on the batch of pig manure wastewater treatment anaerobic reactor the optimum conditions for the exploration and research. Experimental results show that manure substrate consumption rate and the level of the initial COD value has little to do, when the initial COD was 4000mg/L, the largest gas production, anaerobic reactor up and running, you can directly take the raw water sampling; When the reaction temperature is 35℃, the optimum temperature activity of bacteria, pig manure wastewater COD decrease rate of the fastest, the temperature, the maximum gas production, actual production in anaerobic reactor temperature of 35℃ level should be maintained; 350mL Fecal water, with addition of 100ml sludge, pig manure wastewater COD fastest rate of change, while the maximum gas production, and the time at least, 0.33 days have gas production, that at this time by a unit volume of microbial nutrition the proportion of state property in the best nutrition; pig manure wastewater under different initial COD value, the drop rate changed little, and when the initial PH is 8.04, still produce more carbon dioxide, indicating acid bacteria have greater The PH range of adaptation, but methanogens in the PH value of 6.9 only a very small range of activity near the Strong, the scope of activity than the much lower value of methanogenic bacteria is very sensitive to PH.

Keywords: Intermittent; Anaerobic reactors; Single factor analysis; Optimum conditions

目  录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
 1.1  畜禽粪便污染概况 1
 1.2  畜禽养殖污染的危害 2
 1.3  畜禽养殖粪污处理技术 3
2. 实验部分 5
 2.1  实验原理 5
 2.2  实验装置及流程 5
    2.3  实验材料 6
 2.4  分析方法 6
3. 结果与讨论 7
 3.1  葡萄糖浓度变化对反应结果的影响 7
 3.2  碳源为猪粪废水的实验研究 9
4．结论与展望 17
 4.1  结论 17
 4.2  展望 17
致谢 19
参考文献 20
附录 22

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