废水的厌氧生物处理

1、会计学1废水的厌氧生物处理废水的厌氧生物处理Water Pollution Control EngineeringWater Pollution Control Engineering厌氧生物处理Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering温度温度()停留时间停留时间d脂肪脂肪纤维素纤维素蛋白质蛋白质15601560156015000.030.0180.020.01250.090.030.270.160.030.01350.110

2、.040.620.210.030.01温度,停留时间对水解速率常数Kh的影响Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering复杂有机物挥发酸醇CO2+H2乙酸CH4水解 酸化 产氢产乙酸 产甲烷 5%20%28%72%简单有机物10%13%35%17%30%Water Pollution Control EngineeringWater Pollution Cont

3、rol EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering细菌类型细菌类型世代时间世代时间dY(VSS/COD)Kmax(gCOD/gVSSd)Ks(mmol/L)产酸发酵产酸发酵0.1250.1439.6未见报道未见报道产氢产乙酸产氢产乙酸3.50.036.60.4产甲烷产甲

4、烷(用用H2)0.50.0719.60.004甲烷丝菌甲烷丝菌70.025.00.3甲烷八叠球菌甲烷八叠球菌1.50.0411.65.0活性污泥活性污泥0.030.4057.80.25Water Pollution Control EngineeringWater Pollution Control Engineering温度（C）0555045403530251213425637840产气量（m/md）有机物负荷（kg/md）图19-2 温度与有机物负荷、产气量关系图厌氧生物处理Water Pollution Control EngineeringT（C）605040302010012010

5、5907560453015消化时间 t（d）图19-3 温度与消化时间的关系曲线Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering好氧法厌氧法废水浓度能量Water Pollution Control EngineeringWater Pollution Control Engineering厌氧生物处理Water Pollution Control Engineer

6、ingSKXSdtdSsmaxkX)dtdS(dtdXdkY S底物浓度, X污泥浓度, Y厌氧产率系数, kd厌氧的内源代谢系数.Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering化粪池示意图Water Pollution Control EngineeringWater Pollution Co

7、ntrol EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWat

8、er Pollution Control Engineering填料层进水出水CH4Water Pollution Control Engineering特点：微生物浓度大、负荷高; 不需水回流、污泥回流; 耐冲击负荷; 盘片造价高. 转动盘片固定盘片进水出水转轴CH4反应槽Water Pollution Control Engineering特点：类似UASB和厌氧生物转盘；污泥浓度大, 容积负荷高; 既存在颗粒污泥, 又存在生物膜, 耐冲击负荷; 不容易堵塞; 不需载体, 不需搅拌. 缺点同厌氧生物转盘, 盘片. CH4进水出水回流挡板Water Pollution Control Eng

9、ineering厌氧接触法工艺流程消化池废水脱气沉淀池剩余污泥沼气回流污泥厌氧生物处理Water Pollution Control EngineeringWwewcXQXQQVX)(eecXXHRTQXVXc厌氧生物处理Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering配水系统污泥处理水沼气三相分

10、离器出水堰水沼气污泥颗粒污泥区悬浮污泥区图19-12 升流式厌氧污泥床厌氧生物处理Water Pollution Control EngineeringUASB反应器外观厌氧生物处理Water Pollution Control EngineeringUASB反应器收集沼气警示牌厌氧生物处理Water Pollution Control EngineeringUASB反应器沼气收集管厌氧生物处理Water Pollution Control Engineering沼气厌氧生物处理Water Pollution Control EngineeringWater Pollution Control

11、 EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering012345020406080100污泥浓度污泥浓度(g/L)反应器高度反应器高度(m)012345020406080100污泥浓度污泥浓度(g/L)反应器高度反应器高度(m)厌氧生物处理Water Pollution Control EngineeringAB厌氧生物处理Water Pollution Control Engineering颗粒污泥Water Pollution Control EngineeringWater P

12、ollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Engineering废水性质废水性质上升流速上升流速m/h反应器高度反应器高度msCOD近近100%1.56-10部分部分sCOD1.03-7城市污水城市污水0.93-5厌氧生物处理Water Pollution Control EngineeringviLSQV/厌氧生物处理Water Pollution Control Engineering 温度

13、温度( )设计容积负荷设计容积负荷（kgCOD/m3 d）高温（高温（5565）2030中温（中温（3538）1020常温（常温（2025）510低温（低温（15）25Water Pollution Control EngineeringWater Pollution Control Engineering三相分离器的结构设计示意图Water Pollution Control EngineeringWater Pollution Control Engineering膨胀的颗粒污泥三相分离器CH4进水出水3.9 厌氧膨胀颗粒污泥床 (Expanded Granular Sludge Bed,

14、 EGSB): 与UASB 比,具有更高的液体升速, 使颗粒污泥床处于膨胀状态.Water Pollution Control EngineeringWater Pollution Control Engineering厌氧生物处理Water Pollution Control EngineeringCH4气水分离室进水出水H2O 1.一级三相分离器;2.沼气提升管;3.气水分离器;4.回流管;5.二级三相分离器;6.沉淀区123456Water Pollution Control Engineering厌氧生物处理Water Pollution Control EngineeringWate

15、r Pollution Control Engineering颗粒污泥滤料层出水排泥集气Water Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringXeQVXWater Pollution Control Engineering)KV(1)S-(SyQcde0c)K(1)S-(Sycde0Water Pollution Control EngineeringXeQVXXeXt)K(1t)S-(Sycde0cWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control EngineeringWater Pollution Control Eng