6普罗名特现场制备次氯酸钠在供水加压站的应用

19-Mar-18,张宝山SanndyZhangTHEAPPLICATIONOFON-SITEGENERATIONOFSODIUMHYPOCHLORITEINWATERSUPPLYPRESSURESTATION现场制备次氯酸钠在供水加压站的应用德国普罗名特集团全资子公司——普罗名特贸易（大连）有限公司Wholly-ownedsubsidiaryofProMinent2018给水大会之第二届城镇净水厂现代化技术改造高峰论坛1认识我们…Whoweare,Whatwedo19601968197119751976198219851987创建Foundation“Chemie&FilterGmbH”byProf.Dr.h.c.ViktorDulger电磁计量泵Marketintroductionofthefirstelectronicsolenoidmeteringpump,theProMinentelectronic臭氧发生器ExpandingtherangeofproductsbyaddingOzoneSystems测量与控制技术MeasuringandControlTechnologyisadded二氧化氯发生器ExpandingtherangeofproductsbyaddingChlorineDioxideGenerationSystems电机驱动计量泵Motor-drivenMeteringPumpisadded传感器技术SensorTechnologyisadded更名Chemie&FilterGmbHisnowcalledProMinentDosiertechnikGmbH2认识我们…Whoweare,Whatwedo199719992005200820142015反渗透和紫外线杀菌器ExpandingtherangeofproductsbyaddingreverseosmosisandUVsystemsOrlita过程泵TakeoverofthecompanyOrlitaDosiertechnikGmbH(ProcessTechnology)TakeoverofthecompanyTOMALABinSweden(MeteringSystemsforSolids)电解技术公司TakeoverofthecompanyVandenHeuvelWatertechnologiebv,NL(ElectrolysisSystems)50周年ProMinentcelebratesits50thanniversary更名-普罗名特股份有限公司ChangeofcompanynametoProMinentGmbH电磁和过程泵新产品发布Productlaunchofnewsolenoidmeteringpumpandprocesspumps20102014201620162018NewCHLORINSITU®IIaDULCOMARIN®3CDEbChlorineDioxidesystem3次氯酸钠的优势anextremelyeffectivedisinfectantfortheinactivationofbacteriaandviruses;氯化对细菌和病毒的灭活是极其有效的primaryadvantageistheproductionofaresidualforthemaintenanceofwaterqualityindistributionsystems;首要优势在于供水系统中有残余以保证水质theeasierandlessexpensivedisinfectionmethod,regardlessofdistributionsystemsize;较容易、经济的消毒方法，而无论供配系统之规模welldevelopedasitisthewidelyusedandknowndisinfectionmethod;目前应用广泛、广为人知的消毒方法sodiumhypochloriteisbeingincreasinglygeneratedonsite,it’srelativelystable现场制备的次氯酸钠越来越多的得以应用，相对更为稳定的AdvantagesofSodiumhypochlorite4次氯酸钠的局限性Cryptosporidiumandotherprotozoanwaterbornepathogensarehighlyresistanttochlorination;隐孢子虫和其它水传播致病原生动物有更高的耐氯化性ChlorinationislesseffectiveasadisinfectantathighpHduetothepredominanceofthehypochloriteionoverhypochlorousacid;在高pH时，由于次氯酸转为次氯酸根的，因而消毒能力降低Freechlorinereactswithnaturalorganicmatter(NOM)andbromideinthewatertoformDBP,(primarilyTHMsandsomehaloaceticacids(HAAs));氯与天然有机物和溴反应形成消毒副产物（主要是三氯甲烷和卤乙酸）Hypochloritesolutionishazardousandextremelycorrosive,specialstorageandhealthandsafetyconsiderationsregardinghandlingofthesechemicals次氯酸盐溶液是危险的、强腐蚀的，其存储和操作时应考虑健康和安全Drinkingwatercanhavetasteandodourproblems,饮用水会有嗅、味的问题Sodiumhypochloritedegradesovertimeandwithexposuretolightresultingintheformationofchlorateasaby-product;次氯酸钠随时间退化，光照会爆炸，副产物为氯酸盐；LimitationsofSodiumhypochlorite5氯化消毒的演变ChlorinationhistoryElectrolysisBulkSodiumHypochloriteChlorineGasEffectiveness有效Dangerous危险Transportationandhandlinghazard运输与操作危险Effectiveness有效Highconcentration(~12.5%)高浓度Storageissues(degradesovertime)存储问题（随时间退化）Transportationandhandlinghazard运输与操作危险Effectiveness有效Lowconcentration(0.5-3.0%asFAC)低浓度Smallstoragevolumes(dailyusage)日用级小的存储量Minimaltransportationandhandlinghazard(salt)最小化地运输与操作危险（盐）ProMinent®CHLORINSITU®III60006电解消毒剂的优势Norisk,Notransportandstorageoflargevolumesofharshchemicals(NaClOandH2SO4).无需存储和运输大量的危险化学品（次氯酸钠以及硫酸）国家2015《危险化学品目录》，次氯酸钠5.0%（FAC)的属于危险品Accidentsduetoundesiredblendingofchemicals.无调配化学品事故风险Freshproductionofchlorproducts(NaOCland/orCl2gas)andless/nodeteriorationofNaClO→higherreactivity.新鲜次氯酸钠或氯气药剂，没有由于次氯酸钠的不稳定而造成药剂退化现象LowerNaOClconcentrations,lessalkalineproduct,70-100%reductionofacidconsumption.低浓度、低碱性次氯酸钠溶液，节约酸用量70-100%Direct,rapid,accurateandcontrolledprodcutionoffreshchlorineproduct是直接、便捷、精准和可控的新鲜氯消毒产品Betterwater-andairqualityforbothemployeesandvisitors.水质更好，并且为对操作员和参观者营造更好的空气环境Reductionofchloride(Cl-)levelinwater减少氯离子在水中的含量Lowchlorate(ClO3-)levelsinproductandwater.产物和水中低氯酸盐水平AdvantagesofElectrolysisasadisinfectant7电解系统差异Open/hypocelltechnology开放式或hypocell技术Averagesaltconsumption盐耗~3,5kgsaltkgFACEnergyconsumption能耗~4,5kWhkgFAC0,8%NaOClsolution浓度Storagecapacity存贮要求1250L/1kgFACLowerinitialinvestment低投资Lowermaintenancecosts低维护成本Higheroperationalcosts高运行成本DifferentsaltelectrolysissystemsMembranecelltechnology薄膜电解池技术Averagesaltconsumption盐耗~2,0kgsaltkgFACEnergyconsumption能耗~3.7kWhkgFAC2,5%NaOClsolution浓度Storagecapacity存贮要求400L/kgFACHigherinitialinvestment高投资Highermaintenancecosts高维护成本Loweroperationalcosts低运行成本8Chlorinsitu®-II,Open/Hypocelltechnology开放式电解技术-+NaCl(盐)H2O(水)2H2O+2e-2OH-+H2Cathode阴极Anode阳极Na++OH-NaOHNaClO(次氯酸钠)NaCl(盐)H2O(水)H2(氢气)2Cl-Cl2+2e-InCell:2NaOH+Cl2NaClO+NaCl+H2O9Chlorinsitu®-IIFlowdiagram系统流程图SOFTENERSALTVENTURISALTDOSINGHYPOCELPRODUCTDAYSTORAGEDOSINGPUMPWATERHYDROGENVENTANDDEGASSINGElectrolysiscell电解室Ejector射流器Waterinlet进水Brinetank盐箱Storagetankbleach存贮箱5g/l,pH9Meteringpumpbleach计量泵Hydrogenvent氢气排放扇10ExamplesChlorinsitu®-IIsystems系统安装实例11Chlorinsitu®-III，V(Plus)FunctionMembranecelltechnology膜电解技术(Water)H2O-+NaCl(Salt)H2O(Water)2H2O+2e-2OH-+H2Cathode阴极Anode阳极Na+Na++OH-NaOH(Caustic)NaOH(Hydrogen)H2Cl2(Chlorine)NaCl(Salt)H2O(Water)2Cl-Cl2+2e-CationmembranepermeableforNa+ions•notpermeableforCl-ions2Cl-12SOFTENER