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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,11/7/2009,#,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Page,*,Severn Trent Services,美国水环纯,STS,水务集团,CSD(Beijing)Water Works Operation Management Co.,Ltd,中持(北京)水务运营有限公司,Tetra Denite,反硝化深床滤池,1,反硝化深床滤池,提标改造的利器,反硝化深床滤池,Tetra/Denite,一池多用,具有脱氮、除磷、去除悬浮物等多种功能,N0,3,-N 1.0 mg/L,(,TN 3.0 mg/L,),TP 0.3 mg/L,SS 5 mg/L,浊度,2 NTU,每去除,1mg/l N0,3,-N,甲醇耗量,3 mg/l,灵活转换运行模式,,STS/Tetra,滤池被,废水工程 处理及回用,引用经典案例,,中文版,P695,.,2,反硝化深床滤池,提标改造的利器,3,项目,Item,COD,cr,BOD,5,SS,TN,NH,4,-N,TP,备注,Infl.,进水水质,60,20,40,25,5,(,8,),2,Effl.,出水水质,50,10,10,15,5,(,8,),0.5,反硝化深床滤池的工艺流程,4,5,世界反硝化深床滤池的发明者及领导者,反硝化深床滤池结构,6,滤 料,高比重滤料 最小2.6,高等级硅砂,6 X 9,目,直径范围,2.0 3.0 mm,均匀系数小于 1.35,球形度 0.80,莫氏硬度 6-7,最小为 6.0,7,8,304SS,布气主管,气水分布系统,304SS,布气支管,T Block,滤砖,布水廊道盖板,8,气水分布系统,9,10,气水分布系统,窄长型的廊道结构,,使滤池进水更为均匀,滤池进水,11,滤池进水,12,气水反冲洗,特殊的滤砖结构,,使滤池,反洗,(,气洗和水洗,),效果良好,13,驱除氮气,反硝化过程中产生氮气,使得过滤产生气阻,通过驱除氮气,确保滤池运行效果,14,滤池的工作过程,正常进水,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,项目,单位,进水水质,出水水质,TN,mg/L,20,15,TP,mg/L,2,0.5,SS,mg/L,20,10,PAC,、甲醇、乙酸、乙酸钠,15,滤池的工作过程,正常进水,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,反硝化作用,16,滤池的工作过程,正常进水,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,反硝化作用,17,滤池的工作过程,反洗,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,18,滤池的工作过程,反洗,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,19,滤池的工作过程,反洗,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,20,滤池的工作过程,反洗,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,21,滤池的工作过程,水 洗,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,22,滤池的工作过程,驱氮,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,23,滤池的工作过程,正常进水,2.,空气反洗,3.,气水反洗,4.,单独水洗,1.,正常进水,5.,驱除氮气,24,项目,Item,COD,cr,BOD,5,SS,TN,NH,4,-N,TP,备注,Infl.,进水水质,60,20,40,25,5,(,8,),2,Effl.,出水水质,50,10,10,15,5,(,8,),0.5,滤池的工艺流程,25,Denite,Filters,反硝化滤池,FE,Controller,(MMI),控制器,Nitrate,Analyzer,硝酸盐分析仪,Influent,Sampler,进水取样器,Effluent,Sampler,出水取样器,Effluent,出水,Influent,进水,Flow Meter,流量计,Methanol,Feed Pump,加药泵,Denite,反硝化深床滤池碳源控制流程图,26,Scituate,MA,2.4 MGD,Water Temperature 6-7Celsius,水温,6-7,摄氏度,冬季低温的应用,27,Scituate,MA,2.4 MGD,Water Temperature 6-7Celsius,水温,6-7,摄氏度,冬季低温的应用,28,反硝化滤池的运行成本,当污水,BOD5/TN,35,时,认为反硝化碳源充足。当废水中缺少有机物质时,为了给反硝化反应提供足够的电子供体,需要外加碳源。以甲醇、乙醇、乙酸、乙酸钠、葡萄糖为例,比较碳源投加量及费用。各种碳源反硝化化学计量关系式:,5CH,3,OH+6NO,3,-,3N,2,+5CO,2,+7H,2,O+6OH,-,5C2H,5,OH+12NO,3,-,6N,2,+10CO,2,+9H,2,O+12OH,-,5CH,3,COOH+8NO,3,-,4N,2,+10CO,2,+6H,2,O+8OH,-,5CH,3,COONa+8NO,3,-,4N,2,+10CO,2,+6H,2,O+8ONa,-,5C,6,H,12,O,6,+24NO,3,-,12N,2,+30CO,2,+18H,2,O+24OH,-,29,常用碳源投加量及投加费用一览表,碳源,理论投加量(碳源,g/TNg,),实际投加量 (碳源,g/TNg,),单价 (元,/kg,),吨水消耗(,g/m,),吨水折合成本(元),若仅冬季投加吨水折合成本(元),甲醇,1.9,2.9,3.1,14.5,0.045,0.011,乙醇,1.37,乙酸,2.68,4.5,3.3,22.5,0.074,0.018,乙酸钠,3.66,5.0,2.6,25.0,0.065,0.016,葡萄糖,2.68,注:上表按总氮去除为,5mg/L,计算。,反硝化滤池的运行成本,30,常用碳源比较一览表,中文名:,甲醇,乙酸,乙酸钠,外文名:,methyl alcohol,acetic acid,sodium acetate,别名:,木酒精,醋酸,醋酸钠,结构简式:,CH3OH,CH3COOH,C2H3NaO2,相对分子质量:,32.04,60.05,82.03,化学品类别:,有机物,-,醇,有机物,-,酸,有机物,-,管制类型:,不管制,不管制,不管制,储存:,密封保存,密封保存,密封保存,熔点,(),:,-97.8,16.6,324,沸点,(),:,64.8,117.9,相对密度:,0.79,1.0492,1.528,闪点,(),:,11,39,爆炸上限,%(V/V),:,44,17,爆炸下限,%(V/V),:,5.5,4,溶解性:,溶于水,可混溶于醇、醚等多数有机溶剂。,易溶于水和乙醇,其水溶液呈弱酸性,溶于水和乙醚,微溶于乙醇。,反硝化滤池的运行成本,31,反硝化深床滤池运行费用一览表,吨水消耗,消耗品单价,吨水费用,备注,一、电费,0.047348KWh,0.7,元,/KWh,0.033,元,/m,二、药剂,1,、,PAC,0.004113kg/m,2.5,元,/kg,0.010,元,/m,2,、碳源,0.015kg/m,2.6,元,/kg,0.065,元,/m,以乙酸钠计,全年投加,三、费用合计,0.108,元,/m,全年投加碳源,0.016,0.059,元,/m,仅冬季投加碳源,注:上表按总氮去除为,5mg/L,,总磷为,0.5mg/L,计算。,反硝化滤池的运行成本,32,10 Ft Deep Clear Well,3,米深的清水池清澈见底,出水效果,33,出水效果,34,Turbidity of the Effluent,滤池出水浊度,出水效果,35,美国,Tampa,地区,78,年开始采用,STS/Tetra,反硝化滤池,(38,万吨,/d),经,10,年时间,Tampa,海湾生态得到恢复,典型案例,36,Tampa,海湾,37,38,1,、河北廊坊香河县三强污水厂,(中持环保公司设计、施工),(一级,B,提标至一级,A,标准,,2,万吨,/,天),2,、山西潞城污水处理再生水利用工程,(太原市政院设计),(,5-5-3-1,的标准,即,BOD5mg/l;SS5mg/l;TN3mg/l;TP1mg/l.,),3,、浙江嘉善,污水处理厂,(一级,A,,西北市政院设计),4,、无锡芦村污水处理厂四期,(一级,A,,华北市政院设计,,5,万吨,/,天),5,、无锡惠山污水处理厂三期,(一级,A,,无锡市政院设计,,2.5,万吨,/,天),6,、济宁金乡污水处理厂,(一级,A,,济南市政院设计,,3,万吨,/,天),7,、天津张贵庄污水处理厂一期工程,(一级,A,,天津市政院,,20,万吨,/,天),8,、天津泰达,-,威立雅污水处理厂(,一级,A,,天津市政院设计,,10,万吨,/,天),国内应用业绩,39,河北香河县三强污水厂,设计规模:,2,万吨,/,天,进出水水质:一级,B,一级,A,原计划方案:,CASS,池内增加搅拌机,反应时序增设缺氧反应段,原计划方案面临问题:,处理水量由,2,万吨,/,天下降至,1.6,万吨,/,天左右,无法满足减排要求;,改造需停产,环保检查压力巨大;,改造需放空生化池,导致原生化系统停运,恢复困难;,河北廊坊香河县三强污水厂,(,一级,A,标准,,2,万吨,/,天,,2011,年,11,月,9,日签约,),40,河北廊坊香河县三强污水厂,(,一级,A,标准,,2,万吨,/,天,,2011,年,11,月,9,日签约,),该厂于,2007,年,8,月底投入运行,采用,CASS,处理工艺,目前出水水质指标均达到一级,B,的标准:,COD,50mg/L,,,BOD,20mg/L,,,SS,20mg/L,,,NH3-N,8mg/L,,,TN,20mg/L,,,TP,1mg/L,,提标改造的处理中,我公司采用了反硝化深床滤池工艺,只需要采用这样一个构筑物,就可以确保出水稳定达到一级,A,的排放标准,节省投资,管理简单。,41,无锡芦村污水处理厂四期,(一级,A,,华北市政院设计,,5,万吨,/,天),42,无锡芦村污水处理厂四期,(一级,A,,华北市政院设计,,5,万吨,/,天),43,无锡芦村污水处理厂四期,(一级,A,,华北市政院设计,,5,万吨,/,天),44,无锡芦村污水处理厂四期,(一级,A,,华北市政院设计,,5,万吨,/,天),45,天津泰达,-,威立雅污水处理厂,(一级,A,,天津市政院设计,,10,万吨,/,天),46,Denite Biofiltration,Summary,小结,Denite Performance,反硝化滤池的性能,具有良好的生物脱氮功能,,N0,3,
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