造纸脱墨废水生化处理工艺的研究+答辩PPT
The research on biochemical treatment process of deinking wastewater
Abstract: Using the "aerobic - anaerobic" multi-stage process and Fenton oxidation method to the deinking wastewater. The results of experiments show that: in the stable operation of the system, in different conditions of the HRT, along with the HRT gradually increased, the total removal rate of CODcr also increased. When the influent CODcr value is about 580mg/L, and HRT is 6h, the removal rate of CODcr is 82.83%; when HRT is 12h, the removal rate of CODcr can reach 90.49%. Adjusting Q=2L/h, and CODcr in the range of 400~2400mg/L, with increasing CODcr value of water to flood, the total removal rate of CODcr changed little. The influent CODcr was 472.0mg/L, the removal rate of CODcr can be 91.08%, and reaching the maximum; the influent CODcr was 2411.5mg/L, the removal rate of CODcr is 87.19%, it shows that the system capacity of resisting impact load better. The optimum reaction conditions of Fenton treatment of deinking wastewater reagent: initial pH is 6, reaction time is 2h, dosage of FeSO4•7H2O is 3.0000g, the molar ratio of H2O2 /Fe2+ to 6:1 (the dosage of H2O2 is 7.40mL).In the reaction conditions, the removal rate of CODcr is 89.2%, the treatment effect is pretty good.
Keywords: Deinking wastewater; Biochemical treatment; Fenton; Membrane; HRT.
目 录
1 绪 论1
1.1 我国造纸工业水污染概况.1
1.1.1 我国造纸工业水污染现状1
1.1.2 我国造纸废水污染特点1
1.2 造纸脱墨废水概述.2
1.2.1废纸脱墨造纸生产基本工艺2
1.2.2 造纸脱墨废水的水质特征3
1.3 造纸脱墨废水处理工艺综述.3
1.3.1 物理法处理脱墨废水4
1.3.2 化学法处理脱墨废水4
1.3.3 生物法处理脱墨废水5
1.4 造纸脱墨废水处理的有关技术及发展趋势.6
1.4.1 国内造纸脱墨废水处理技术6
1.4.2国外造纸脱墨废水处理技术.7
1.5 本研究选题的依据及研究内容.8
1.5.1 本研究的选题依据8
1.5.2 本论文研究的主要内容8
2 生物膜实验材料与方法.10
2.1 实验原理.10
2.2 实验仪器.10
2.3 实验药品.10
2.4废水测定项目10
2.4.1 溶解氧的测定10
2.4.2 CODcr的测定11
2.5 影响生物膜工艺效能的研究.11
2.5.1 实验装置11
2.5.2 实验废水及污泥12
2.5.3 挂膜与启动12
2.5.4 水力停留时间（HRT）对运行效果的影响13
2.5.5生物反应器抗冲击负荷能力的研究.16
2.5.6 生物法小结17
3 Fenton氧化实验材料与方法.19
3.1 实验原理.19
3.2 实验仪器.19
3.3 实验药品.19
3.4废水测定项目20
3.4.1 pH测定.20
3.4.2 CODcr的测定.20
3.5 Fenton法处理条件的影响.20
3.5.1 FeSO4•7H2O投加量的影响20
3.5.2 H2O2 /Fe2+投加比的影响.22
3.5.3 初始pH的影响.24
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