毕业论文

打赏
当前位置: 毕业论文 > 化学论文 >

SBR废水处理脱氮除磷优化工艺的研究(3)

时间:2021-01-16 13:29来源:毕业论文
The needs of a large number of consumption of aeration, so high, so all and basic operation mode compared to nitrogen removal operation in aeration and sedimentation stage with a non aeration stirring

The needs of a large number of consumption of aeration, so high, so all and basic operation mode compared to nitrogen removal operation in aeration and sedimentation stage with a non aeration stirring process, enhanced biological denitrification [13]. Due to the reaction mixture in the denitrification process for nitrogen removal efficiency. In order to achieve good denitrification effect, we must first ensure good nitrification in the aeration stage should ensure that a sufficient amount of time to obtain good nitration effect. In addition, the aeration stage of organic substrates can lead to stop aeration stirring the denitrification effect is not ideal. According to the actual working condition and can be applied for organic carbon The source of the way, to further strengthen the effect of denitrification, improve the efficiency of nitrogen removal.

Key words: SBR wastewater treatment, nitrogen removal, phosphorus removal

1.1 水体中氮的来源以及危害 9

1.1.1 水体中氮的来源 9

1) 工业废水 9

2) 城市生活污水 9

3) 农业生产污水 9

4) 城市垃圾,污水处理厂出水等 10

5) 大气沉降 10

1.1.2 氮对水环境的影响 10

1) 会消耗水体中的溶解氧 10

2) 影响供水的水质、提高制水成本 10

3) 影响水生生态 11

4) 影响渔业生产 11

1.2 生物脱氮技术及其发展 11

1.2.1 生物脱氮的基本原理 11

1) 氨化作用 12

2) 硝化作用 12

3) 反硝化作用 13

1.3 SBR工艺的概述 13

1.3.1 SBR工业的发展 13

1.3.2 SBR工艺流程及原理 14

1、 进水期 14

2、 反应期 14

3、 沉淀期 14

4、 排水期 15

5、 闲置期 15

1.3.3 SBR工艺运行的方式 15

1) 经典的SBR运行方式 15

2) SBR工艺的除磷运行方式 15

3) SBR工艺脱氮的运行方式 16

1.3.4 SBR工艺的特点 16

1)优点: 16

2)缺点【16】: 16

1.3.5 SBR工艺脱氮除磷的影响因素 17

1. 进水有机物 17

2. 溶解氧 17

3. 污泥龄 17

4. 硝酸盐 18

5. 其他影响因素 18

实验器材与运行参数 19

2.1.实验设备 19

2.1.1 化验设备 19

2.2 实验运行参数 SBR废水处理脱氮除磷优化工艺的研究(3):http://www.751com.cn/huaxue/lunwen_68353.html

------分隔线----------------------------
推荐内容