Fenton试剂处理槟榔加工废水试验研究

Fenton试剂处理槟榔加工废水试验研究(7100字)

摘要：针对槟榔废水的有机物浓度高、色度高、难生化等特点采用Fenton法进行预处理实验。实验通过采用正交实验和单因素实验结合的方法最终确定 Fenton反应的最佳操作条件为：H2O2投加量为7.5ml/L 、Fe2+投加量为1.5g/L、 反应体系的pH为4、 反应时间为180min。实验结果表明，此条件下COD的浓度可由最初的605 mg/L降低至83.3 mg/L，而且废水的色度也相应降低，同时废水的可生化性（BOD5/CODcr）也由最初的0.294提高至0.405，为槟榔废水后续的生物处理工艺提供了有利条件。
关键字：槟榔废水、Fenton试剂、可生化性

Study of Treatment Technology on betelnut wastewater by Fenton

Abstract：For betelnut wastewater with high concentration and chroma and difficult to deal with it can use pretreatment by Fenton..The optimal operating conditions determined by orthogonal and single-factor experiments are as following: theadding dosage of H2O2 was7.5ml/L and Fe2+  was 1.5g/L，the pH value was 4，the reaction time was 180 minute.Under this conditions the concentration of the COD can fall to 83.3mg/L and the chroma was also declined.The biodegradability can rise from 0.294 to 0.405. The research provided the basis for pretreatment of betelnut wastewater and opened up a new way for follow-up biochemical treatment of betelnut wastewater.
Key words：betelnut wastewater；Fenton；Biodegradability
 

目  录
摘要    1
1 前言    2
1.1 选题研究意义    2
1.2 国内外研究现状    2
1.3 Fenton法原理及应用    3
2 材料与方法    4
2.1 供试水样    4
2.2 试验药剂与仪器    4
2.3 试验方法    5
3结果与分析    5
3.1 废水水质分析    5
3.2 反应条件的正交试验    5
3.3 单因素实验    6
3.3.1 H2O2投加量    6
3.3.2 Fe2+ 投加量    7
3.3.3 pH值    8
3.3.4 反应时间    9
3.4废水处理成本    10
4结论与讨论    11
参考文献    11
致  谢    12