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1、Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology活性污泥处理系统的运行方式活

2、性污泥处理系统的运行方式Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology活性

3、污泥处理系统的运行方式活性污泥处理系统的运行方式活性污泥法新工艺活性污泥法新工艺活性污泥处理系统的维护管理活性污泥处理系统的维护管理内容提要内容提要Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture

4、and TechnologyXian University of Architecture and Technology 传统活性污泥法(普通活性污泥法)传统活性污泥法(普通活性污泥法) 阶段曝气活性污泥法阶段曝气活性污泥法 吸附吸附- -再生活性污泥法系统再生活性污泥法系统 延时曝气活性污泥法延时曝气活性污泥法 高负荷活性污泥法高负荷活性污泥法 完全混合活性污泥法完全混合活性污泥法 多级活性污泥法系统多级活性污泥法系统 深水曝气活性污泥法系统深水曝气活性污泥法系统 深井曝气活性污泥法系统深井曝气活性污泥法系统 浅层曝气活性污泥法系统浅层曝气活性污泥法系统 纯氧曝气活性污泥法系统纯氧曝气活性污

5、泥法系统活性污泥处理系统的运行方式活性污泥处理系统的运行方式Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architectur

6、e and Technology传统活性污泥法传统活性污泥法工艺特点工艺特点 形式上是一个长廊,整体是推流式流态;形式上是一个长廊,整体是推流式流态; 经历了生物增长的全过程,从起端到末端污泥负荷经历了生物增长的全过程,从起端到末端污泥负荷逐渐降低;逐渐降低; 出水水质较好,出水水质较好,BOD5去除率一般大于去除率一般大于90%; 污泥产率较低。污泥产率较低。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmenta

7、l and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology存在问题:存在问题: 起端的曝气量不足,容易缺氧;起端的曝气量不足,容易缺氧; 末端曝气量过剩,效率较低;末端曝气量过剩,效率较低; 曝气池容积较大,占用的土地较多,基建费用曝气池容积较大,占用的土地较多,基建费用较高;较高; 对水质、水量变化的适应行较低。对水质

8、、水量变化的适应行较低。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology阶段

9、曝气活性污泥法阶段曝气活性污泥法工艺特点:工艺特点: 分段进水,又称分段进水活性污泥法;分段进水,又称分段进水活性污泥法; 推流式流态,污水分段进入曝气池,有机物负荷相对均匀;推流式流态,污水分段进入曝气池,有机物负荷相对均匀; 均匀供氧,利用率较高;均匀供氧,利用率较高; 抗冲击能力强,出水水质好;抗冲击能力强,出水水质好; 可控制在微生物增长的某一阶段进行反应可控制在微生物增长的某一阶段进行反应Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySch

10、ool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology吸附吸附-再生曝气活性污泥系统再生曝气活性污泥系统工艺特点:工艺特点: 吸附池的容积一般较小,吸附接触时间较短;吸附池的容积一般较小,吸附接触时间较短; 吸附池再生池的容积之和仍低于传统活性污泥法曝气池的容吸附池再生池的容积之

11、和仍低于传统活性污泥法曝气池的容积,基建费用较低;积,基建费用较低; 对水质、水量的冲击负荷具有一定承受能力;对水质、水量的冲击负荷具有一定承受能力; 处理效果低于传统活性污泥法,不宜处理溶解性有机物含量处理效果低于传统活性污泥法,不宜处理溶解性有机物含量较高的污水较高的污水污水与活性污泥混合曝气后BOD值的变化情况Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal Enginee

12、ringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology延时曝气活性污泥法延时曝气活性污泥法工艺特点:工艺特点: 有机物负荷非常低,曝气时间长,一般多在有机物负荷非常低,曝气时间长,一般多在24h以上,污泥量以上,污泥量少且稳定;少且稳定; 出水效果好,运行稳定;出水效果好,运行稳定; 二沉池内泥水分离速度较快;二沉池内泥水分离速度较快; 停留时间太长,池容太大,

13、适合小水量。停留时间太长,池容太大,适合小水量。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and

14、Technology高负荷活性污泥法高负荷活性污泥法又称短时曝气活性污泥法或不完全处理活性污泥法,又称短时曝气活性污泥法或不完全处理活性污泥法,其工艺流程与传统活性污泥相同;其工艺流程与传统活性污泥相同;曝气时间短,有机物负荷较高,处理效果较差,一般曝气时间短,有机物负荷较高,处理效果较差,一般BOD5的去除率不超过的去除率不超过70%80%;一般用于对处理水水质要求不高的污水或作为前处理一般用于对处理水水质要求不高的污水或作为前处理工艺使用。工艺使用。Research Institute of Water Treatment TechnologyResearch Institute of W

15、ater Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology完全混合活性污泥法完全混合活性污泥法工艺特点:工艺特点: 进入曝气池的污水很快被池内已存在的混合液所稀释和均化,进入曝气池的污水很快被池内已存在的混合液所稀释和均化,对冲

16、击负荷有较强的适应能力;对冲击负荷有较强的适应能力; 适用于处理工业废水,特别是浓度较高的有机废水;适用于处理工业废水,特别是浓度较高的有机废水; 曝气池内各部位微生物群里的组成和数量几乎一致,各部位有曝气池内各部位微生物群里的组成和数量几乎一致,各部位有机物降解工况相同;机物降解工况相同; 浓度梯度小,有机物降解、传递动力小,降解速度慢;浓度梯度小,有机物降解、传递动力小,降解速度慢; 污泥容易膨胀,出水水质一般污泥容易膨胀,出水水质一般Research Institute of Water Treatment TechnologyResearch Institute of Water Tr

17、eatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology多级活性污泥处理系统多级活性污泥处理系统工艺特点:工艺特点: 将两个或者两个以上独立的活性污泥处理系统串联起来;将两个或者两个以上独立的活性污泥处理系统串联起来; 第一级活性污泥处理系

18、统的负荷最高,负荷逐级降低;第一级活性污泥处理系统的负荷最高,负荷逐级降低; 适用于处理有机污染物浓度很高的污水;适用于处理有机污染物浓度很高的污水; 各级系统的污泥产量不同,微生物种群各异;各级系统的污泥产量不同,微生物种群各异; 投资与运行费用高,管理麻烦,设备较多。投资与运行费用高,管理麻烦,设备较多。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal Engineering

19、School of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology深水曝气活性污泥法深水曝气活性污泥法工艺特点:工艺特点: 曝气池内的混合液的深度大,一般在曝气池内的混合液的深度大,一般在7m以上;以上; 提高了溶解氧浓度、降低气泡直径并提高气泡的表面积;提高了溶解氧浓度、降低气泡直径并提高气泡的表面积; 提高了氧的传递速率,利于微生物的增殖与有机污染物的降解;提高了氧的传递速率,

20、利于微生物的增殖与有机污染物的降解; 节省占地。节省占地。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture

21、 and Technology深水曝气活性污泥法深水曝气活性污泥法工艺特点:工艺特点: 井深井深50-100m,又名超水深曝气活性污泥法;,又名超水深曝气活性污泥法; 有利于微生物的增殖与有机污染物的降解;有利于微生物的增殖与有机污染物的降解; 施工难度大,对地质条件和防渗要求高施工难度大,对地质条件和防渗要求高Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal Engineeri

22、ngSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology浅层曝气活性污泥法系统浅层曝气活性污泥法系统工艺特点:工艺特点: 气泡只是在形成与破碎瞬间,有着最高的氧转移率,而与水气泡只是在形成与破碎瞬间,有着最高的氧转移率,而与水深无关;深无关; 当空气由穿孔管通入池内向上流动时当空气由穿孔管通入池内向上流动时, 由于空气提升作用由于空气提升作用, 使使导流板两侧形成环流

23、导流板两侧形成环流, 混合液和空气得到充分接触混合液和空气得到充分接触, 池底亦不池底亦不会发生沉积;会发生沉积; 曝气器安装深度曝气器安装深度0.60.8m,适宜低压风机曝气,节省电耗。,适宜低压风机曝气,节省电耗。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal Engineer

24、ingXian University of Architecture and TechnologyXian University of Architecture and Technology纯氧曝气活性污泥法纯氧曝气活性污泥法工艺特点:工艺特点: 氧传递速率快,活性污泥浓度高因此可提高有机物去除率,使氧传递速率快,活性污泥浓度高因此可提高有机物去除率,使曝气池容积大大缩小;曝气池容积大大缩小; 剩余污泥量少,污泥具有良好沉降性,不易发生污泥膨胀;剩余污泥量少,污泥具有良好沉降性,不易发生污泥膨胀; 曝气池中能保持高浓度的溶解氧,有较好的耐冲击负荷能力;曝气池中能保持高浓度的溶解氧,有较好的耐冲

25、击负荷能力; 要密闭运行,运行管理复杂,需要配备制氧设备要密闭运行,运行管理复杂,需要配备制氧设备Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian Univer

26、sity of Architecture and Technology氧化沟工艺A2O工艺吸附-生物降解工艺(AB)序批式活性污泥法(SBR)膜生物反应器(MBR)活性污泥法新工艺Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University

27、of Architecture and TechnologyXian University of Architecture and Technology氧化沟工艺氧化沟工艺氧化沟工艺也称氧化渠或循环曝气池氧化沟工艺也称氧化渠或循环曝气池Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal

28、 EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology工艺特点:工艺特点:工艺流程简单,构筑物少,运行管理方便,可不设初工艺流程简单,构筑物少,运行管理方便,可不设初沉池;沉池;氧化沟采用环形沟渠形式,污水在沟内的流速为氧化沟采用环形沟渠形式,污水在沟内的流速为0.30.5m/s;氧化沟一般采用转刷等表面曝气设备;氧化沟一般采用转刷等表面曝气设备;氧化沟采用延时曝气(污泥负荷在氧化沟采用延时曝气(污泥负荷在0.050.10kg BOD5 /k

29、gMLSS.d之间),不采用污泥消化处理;之间),不采用污泥消化处理;占地面积大,能耗较大占地面积大,能耗较大常用氧化沟系统常用氧化沟系统卡鲁塞尔(卡鲁塞尔(Carrousel)氧化沟)氧化沟交替工作氧化沟系统交替工作氧化沟系统奥贝尔(奥贝尔(Orbal)氧化沟)氧化沟曝气曝气-沉淀一体化氧化沟沉淀一体化氧化沟Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal Engineerin

30、gSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology卡鲁塞尔(卡鲁塞尔(Carrousel)氧化沟)氧化沟 荷兰荷兰DHV公司所开发,在我国应用广泛公司所开发,在我国应用广泛Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologyS

31、chool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology 工艺特点:工艺特点: 应用广泛,最大规模为应用广泛,最大规模为650000m3/d; 采用竖轴低速表面曝气器;采用竖轴低速表面曝气器; 水深可达水深可达4 4.5m,沟内流速达,沟内流速达0.3 0.4m/s; 混合液在

32、沟内每混合液在沟内每5 20min循环一次;循环一次; 沟内混合液总量是入流废水量的沟内混合液总量是入流废水量的30 50倍;倍; BOD5去除率可达去除率可达95%以上,脱氮率可达以上,脱氮率可达90%,除磷效率可达除磷效率可达50%。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipa

33、l EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology英国英国ASHVale 污水处理厂污水处理厂Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and

34、Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology双沟系统三沟系统交替工作氧化沟系统交替工作氧化沟系统 丹麦克鲁格公司开发,有双沟和三沟两种系统;丹麦克鲁格公司开发,有双沟和三沟两种系统; 没有污泥回流系统,出水水质较好,污泥稳定;没有污泥回流系统,出水水质较好,污泥稳定; 对于双沟式氧化沟而言,对于双沟式氧化沟而言,A、B两池串联运行,交替作为曝气两池串联运行,交替作为曝气池和沉淀池;池和沉淀池; 对于三沟式氧化沟两侧

35、的对于三沟式氧化沟两侧的A、C池交替地作为曝气池和沉淀池池交替地作为曝气池和沉淀池,中间,中间B池一直为曝气池;池一直为曝气池; 必须安装自动控制系统必须安装自动控制系统Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Ar

36、chitecture and TechnologyXian University of Architecture and TechnologyResearch Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and

37、 TechnologyXian University of Architecture and TechnologyOrbal氧化沟氧化沟 由南非国家水研究所开发研制,现在在我国应用较广泛;由南非国家水研究所开发研制,现在在我国应用较广泛; 曝气设备均采用曝气转盘,充氧效率高;曝气设备均采用曝气转盘,充氧效率高; 多采用三层沟渠,外沟容积最大,占总容积的多采用三层沟渠,外沟容积最大,占总容积的60%70%,主,主要完成氧化和脱氮过程;中沟占要完成氧化和脱氮过程;中沟占20%30%,内沟仅占,内沟仅占10%; 外、中、内三层沟渠混合液的溶解氧保持较大的梯度,分别为外、中、内三层沟渠混合液的溶解氧保

38、持较大的梯度,分别为0、1、2mg/L。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Tech

39、nologyResearch Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology曝气曝气-沉淀一

40、体化氧化沟沉淀一体化氧化沟 系统将曝气、沉淀、泥水分离功能集于一体,又称合建式氧化系统将曝气、沉淀、泥水分离功能集于一体,又称合建式氧化沟,沟,80年代初在美国开发;年代初在美国开发; 没有污泥回流系统,占地面积小,系统控制较复杂;没有污泥回流系统,占地面积小,系统控制较复杂; 与前面几种氧化沟相比出水水质较差。与前面几种氧化沟相比出水水质较差。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Mu

41、nicipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and TechnologyResearch Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal Engine

42、eringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and TechnologyA2O工艺工艺最简单的同步脱氮除磷工艺,总的水力停留时间少于最简单的同步脱氮除磷工艺,总的水力停留时间少于其他同类工艺;其他同类工艺;在厌氧(缺氧)、好氧交替运行的情况下,不易发生在厌氧(缺氧)、好氧交替运行的情况下,不易发生污泥膨胀;污泥膨胀;运行中勿需投药,厌氧池和缺氧池只用轻微搅拌,运运行中勿需投药,

43、厌氧池和缺氧池只用轻微搅拌,运行费用低。行费用低。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and

44、 Technology吸附吸附-生物降解工艺生物降解工艺 (Adsorption-Biodegration),简称,简称AB法污水处理工艺;法污水处理工艺; 系统不设初沉池。系统不设初沉池。A级是一个开放性的生物系统;级是一个开放性的生物系统; A级以高负荷或超高负荷运行,污泥负荷级以高负荷或超高负荷运行,污泥负荷2.0kgBOD5kgMLSS.d, A级曝气池停留时间短,级曝气池停留时间短,3060min; B级以低负荷运行级以低负荷运行,污泥负荷一般为污泥负荷一般为0.10.3kgBOD5kgMLSS.d,B级停留时间为级停留时间为24h; A、B两级各自有独立的污泥回流系统,两级的污泥互

45、不相混;两级各自有独立的污泥回流系统,两级的污泥互不相混; 工艺处理效果稳定,具有抗冲击负荷、工艺处理效果稳定,具有抗冲击负荷、pH值变化的能力。值变化的能力。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Archite

46、cture and TechnologyXian University of Architecture and Technology序批式活性污泥法序批式活性污泥法 (Sequencing Batch Reactor),简称,简称SBR工艺,又称间歇式活性污工艺,又称间歇式活性污泥法;泥法; 工艺系统组成简单,不设二沉池,曝气池兼具二沉池的功能,无污工艺系统组成简单,不设二沉池,曝气池兼具二沉池的功能,无污泥回流设备;泥回流设备; SBR工艺的曝气池,在流态上属完全混合,在有机物降解上,却是工艺的曝气池,在流态上属完全混合,在有机物降解上,却是时间上的推流,有机物是随着时间的推移而被降解的。时

47、间上的推流,有机物是随着时间的推移而被降解的。 耐冲击负荷的能力强,在一般情况下耐冲击负荷的能力强,在一般情况下(包括工业污水处理包括工业污水处理)无需设置调无需设置调节池;节池; 反应推动力大,易于得到优于连续流系统的出水水质;反应推动力大,易于得到优于连续流系统的出水水质; 运行操作灵活,通过适当调节各单元操作的状态可达到脱氮除磷的运行操作灵活,通过适当调节各单元操作的状态可达到脱氮除磷的效果;效果; 污泥沉淀性能好,污泥沉淀性能好,SVI值较低,能有效地防止丝状菌膨胀;值较低,能有效地防止丝状菌膨胀; 该工艺的各操作阶段及各项运行指标可通过计算机加以控制,便于该工艺的各操作阶段及各项运行

48、指标可通过计算机加以控制,便于自控运行,易于维护管理。自控运行,易于维护管理。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Ar

49、chitecture and TechnologyA、进水搅拌E、排水排泥C、停曝搅拌B、曝气D、排泥传统传统SBR法法 Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and Technolog

50、yXian University of Architecture and TechnologySBR工艺的发展及主要变形工艺工艺的发展及主要变形工艺 间歇式循环延时限气活性污泥工艺间歇式循环延时限气活性污泥工艺(Intermittent Cyclic Extended Activated Sludge,简称,简称ICEAS); 循环式活性污泥工艺(循环式活性污泥工艺(Cyclic Activated Sludge Technology,简称,简称CAST工艺);工艺); 由需氧池(由需氧池(Demand Aeration Tank)为主体处理构筑)为主体处理构筑物的预反应区和以间歇曝气池物的预

51、反应区和以间歇曝气池(Intermitent Aeration Tank)为主体的主反应区组成的连续进水、间歇徘水的为主体的主反应区组成的连续进水、间歇徘水的工艺系统。英文略写为工艺系统。英文略写为DATIAT工艺;工艺; 此外还有:此外还有:IDAL、IDEA、CASS、UNITANK等。等。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool

52、of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and TechnologyUnitank法(组合交替式活性污泥法)法(组合交替式活性污泥法) Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipa

53、l EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and TechnologyICEAS工艺工艺(间歇循环延时曝气系统间歇循环延时曝气系统) 连续进水微孔曝气管水位变化区间歇排泥主反应区预反应区出水Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment

54、TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and TechnologyCASS工艺工艺主反应区预反应区出水Research Institute of Water Treatment TechnologyResearch Institute of Water Treatm

55、ent TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology膜生物反应器膜生物反应器(MBR)(Membrane Bioreactor),综合了膜分离技术与生物),综合了膜分离技术与生物处理技术的优点,以超滤、微滤膜组件代替传统生物处处理技术的优点,以

56、超滤、微滤膜组件代替传统生物处理系统的二沉池以实现泥水分离;理系统的二沉池以实现泥水分离;去除效率高,出水水质好。出水可直接回用;去除效率高,出水水质好。出水可直接回用;水力停留时间和污停留时间完全分离有利于增殖缓慢的水力停留时间和污停留时间完全分离有利于增殖缓慢的微生物,如硝化细菌的截留和生长,系统硝化效率得以微生物,如硝化细菌的截留和生长,系统硝化效率得以提高;提高;微生物浓度高,装置处理容积负荷大,设备占地少;微生物浓度高,装置处理容积负荷大,设备占地少;污泥产量低(由于相对较小的污泥产量低(由于相对较小的F/M值),易于实现自动值),易于实现自动控制,操作管理方便;控制,操作管理方便;

57、能耗及运行费用高。运行过程中膜易受到污染,使产水能耗及运行费用高。运行过程中膜易受到污染,使产水量降低,膜组件制造成本较高。量降低,膜组件制造成本较高。Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architectur

58、e and TechnologyXian University of Architecture and Technology根据膜组件设置的位置可分为分置式和一体式根据膜组件设置的位置可分为分置式和一体式2种:种:Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment TechnologySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal Engineerin

59、gXian University of Architecture and TechnologyXian University of Architecture and Technology活性污泥的培养与驯化活性污泥的培养与驯化试运行试运行活性污泥处理系统运行效果的检测活性污泥处理系统运行效果的检测活性污泥处理系统运行中的异常情况活性污泥处理系统运行中的异常情况活性污泥处理系统的维护管理活性污泥处理系统的维护管理Research Institute of Water Treatment TechnologyResearch Institute of Water Treatment Technol

60、ogySchool of Environmental and Municipal EngineeringSchool of Environmental and Municipal EngineeringXian University of Architecture and TechnologyXian University of Architecture and Technology活性污泥的培养与驯化活性污泥的培养与驯化活性污泥的培养和驯化方法可归纳为以下三种:活性污泥的培养和驯化方法可归纳为以下三种: 异步培驯法异步培驯法 同步培驯法同步培驯法 接种培驯法接种培驯法Research Ins

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