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Pre-sedimentation tank: the use of radial flow, surface load q = 1.2m3 / (m2∙h), HRT (SRT) is 2.5h, h = 5.4m, D = 20m.
Anaerobic reactor pool: select volume load q = 0.5kgCOD / (m3∙d) ,HRT = 12h, two parallel, single-component 7 cells, each cell size: 10m × 5m.
Biological contact oxidation pond: using a combination of fillers, volumetric loading q = 0.50kg BOD / (m3 ∙ d), the filler volume V = 2850 m3, packing height h3 = 3.5m, HRT = 6.7h; 8 run parallel group, single component 2 cells, a single cell size: 10m × 5m, COD GS = 160m3 / min.
Final Clarifier: The radial flow, surface load q = 1.2m3 / (m2 ∙ h), residence time of 2.0h, h = 4.9 m, D = 20m.
BAF: q filter = 0.35kgCODCr / (m3 ∙ d), filter height h3 = 3.0m, a residence time of 3.8h, pided into four groups, a single group of five cells, each cell size: 6m × 6m, COD GS = 70m3 / min.
Key contact oxidation pond complete structure diagram, drawing equipment installation, including a combination of packing arrangement and installation drawings, drawings and drawing work aeration.
By this process, the water required to meet the "urban sewage treatment plant emission standards" GB18918-2002 emission standards for two.
Keywords: dyeing wastewater; water treatment; processing design.
目录
1、设计总说明 1
2、水量水质及排放标准 3
3、设计原则及标准 3
4、目前印染废水污染状况简介 3
5、工艺方案的选择 4
5.1污水水质特点 4
5.2方法分析 5
6、处理工艺的对比与选择 5
6.1厌氧-好氧串联工艺 6
6.2生物+物化组合工艺 6
7、处理工艺对比 7
7.1工艺流程 7
7.2主要处理单元 7
7.2.1格栅 7
7.2.2调节沉淀池 8
7.3生物处理法的对比与选择 9
7.3.1厌氧形式的选择 9
7.3.2好氧形式的选择 11
7.3.3生物接触氧化法的选择 12
7.4沉淀池的选择 12
7.5污泥处理工艺 13
7.5.1污泥稳定 13
7.5.2污泥调理 14
7.5.3污泥浓缩 15
7.5.4污泥脱水 15
7.5.5污泥处置 16
7.6各系统处理单元的出水负荷 16
8.工艺设计计算 17
8.1设计参数 17
8.2构筑物计算 17
8.2.1格栅 17
8.2.2调节池： 18
8.2.3混凝预处理沉淀池 19
8.2.4配水池 21
8.2.5生物接触氧化池 21
8.2.6生化沉淀池 23
8.2.7最终物化沉淀池