SBR处理高浓度有机废水工况的探索

摘 要

本文采用SBR法研究了该好氧生物处理技术在高浓度有机废水中的应用。

SBR反应器是一种高效、低耗的处理高浓度有机废水的处理技术。

针对有机废水浓度高、毒性大等性质，通过对各项运行条件（反应器曝气量、

水力停留时间、接种污泥等）的控制，SBR反应器运行90天，研究结果表明：通过对COD、BOD、DO三个指标的连续测定，可看出SBR反应器可使废水的COD去除率达到72.8%左右，而BOD的去除率更高达95%，DO控制应在2.5mg/L左右，水利停留时间在10h为最佳。

由此实验表明：应用SBR法处理高浓度有机废水是切实可行的，该方法可

以使处理后的水质能够达到国家规定的三级排放标准。

关键词：高浓度有机废水， 好氧， SBR， COD， BOD， DO

Abstract

This paper adopts the SBR aerobic biological treatment technology in the

application of high concentration organic wastewater treatment.The SBR reactor is a kind of high efficient and low processing high concentration organic wastewater

treatment technology.

南通职业大学毕业设计（论文） SBR处理高浓度有机废水工

况的探索

High concentration organic wastewater in nature, such as large and toxicity of

various operation conditions (by reactor oxygen, hydraulic retention time and

inoculation, etc.), control of SBR reactor operation nearly 120 days, the results of the study indicate that: based on COD, BOD, DO three criteria can see for determination of SBR reactors can make the wastewater COD removal would achieve 72.8 percent, while the removal rate of 95% BOD higher control should DO in 1.5 mg/L or so,

water retention time in 10 hours for the best.

This experiment shows that the application of high concentration organic

wastewater SBR treatment is practical and feasible, this method can make treated

water can reach the level 3 emission standards prescribed by the state.

Keywords: organic wastewater， aerobic， SBR， DO， COD， BOD

目 录

摘 要........................................................................................................ I Abstract........................................................................................................ I

1 绪论 .......................................................................................................... 1

1.1 高浓度有机废水的特性 .............................................................................................. 1

1.2 好氧生物处理技术—SBR法 ..................................................................................... 2

1.2.1 SBR的产生及发展 ............................................................................................ 2

1.2.2 SBR的工作原理 ................................................................................................ 2

1.2.3 SBR的工艺特点 ................................................................................................ 3

1.2.4 SBR工艺的影响因素 ........................................................................................ 4

1.2.5 SBR常见的运行模式 ........................................................................................ 6

1.2.6 SBR的适用范围 ................................................................................................ 6

1.2.7 SBR的研究进展 ................................................................................................ 7

2 实验部分 ................................................................................................... 8

2.1 化学试剂和实验仪器 .................................................................................................. 8

2.1.1 化学试剂 ............................................................................................................ 8

2.1.2 主要实验仪器 .................................................................................................... 9

2.2 实验装置及操作条件 .................................................................................................. 9

2.2.1 SBR实验装置 .................................................................................................... 9

2.2.2 实验运行条件 .................................................................................................. 10

2.3 反应器运行 ................................................................................................................ 10

2.3.1 活性污泥的培养 .............................................................................................. 10

2.4 分析测试方法 .............................................................................................................11

2.4.1 COD分析 ..........................................................................................................11

2.4.2 DO的分析 ........................................................................................................ 12

2.4.3 BOD的分析 ..................................................................................................... 12

3 实验结果与讨论 ...................................................................................... 13

3.1 污泥的培养 ................................................................................................................ 13

3.1.1 污泥的培养 ...................................................................................................... 13

3.1.2 污泥的驯化 ...................................................................................................... 15

3.2 影响因素分析 ............................................................................................................ 15

3.2.1 进水COD对结果的影响 ............................................................................... 15

3.2.2 水力停留时间对结果的影响 .......................................................................... 16

3.2.3 曝气量对COD去除率的影响 ....................................................................... 17

3.2.4 搅拌作用对COD去除率的影响 ................................................................... 17

3.2.5 反应池中DO的变化与COD变化的关系.................................................... 17

3.3 实验运行结果 ............................................................................................................ 18

3.3.1 COD的测定结果 ............................................................................................. 19

3.3.2 BOD的测定结果 ............................................................................................. 19

3.3.3 好氧颗粒污泥的粒径分布与沉降性能 .......................................................... 20

3.3.4 污泥成熟的特征 .............................................................................................. 20

3.3.5 污泥培养过程中的异常现象 .......................................................................... 21

4 结论 ........................................................................................................ 22

参考文献..................................................................................................... 23

致 谢 ........................................................................................................ 24