简介：Therearenumerousstudiescomparingdifferentkindsofenvironmentaltaxesandstandards.However,formsofenvironmentalstandardsfocusedbyformerresearchersareusuallyquantitybasedlimits/standards(e.g.poundsperdayorpoundsperunitofoutput).Concentration-basedemissionstandard(e.g.milligramsperliterofwastewater)asoneimportantformofenvironmentalstandardhasnotbeengivenmuchattention.Inthisarticle,comparableestimatesoftheirprobableeffectonenterprisepollutionreductionwillbedevelopedforconcentrationbasedeffluentstandards,effluenttaxes,andacombinationofboth.Alinearsimulationmodelisusedtoclearlyandobviouslycomparetheeffectsofeffluenttaxesandconcentration-basedstandardswithinthesamefigure.Withonedetailedapplicationtothepaperindustry,someenlightenmentandconclusions-aswellasthegeneralapplicabilityoftheseprinciples-arethenprovided:Underthesameeffluenttaxrate,enterprises,groups,andindustriesthatarecleanerwillreducemorepollutantsthanthosethathavehigherpollutantabatementcosts.Itisrecommendedthateffluenttaxesaresetbyavoidingcuttingitevenatonestrokeandconsideringthefeasibilityofpollution-reducingtechnologyinvariousindustries.ItisnecessarytoreduceMACofenterprisestobetterstimulateenterprises’orindustries’emissionreductionbypreferentialmeasures,suchashightaxratecoordinatedbyspeedingupthedepreciationofenvironmentalprotectionequipment.

简介：在第二等的自河的推迟的固体的集中经常广泛地变化，导致满足消毒标准的紫外剂量的经常的调整。Inaddition，需要的消毒率是困难的有时完成。作者学习了颗粒分布，联系粒子的烘便的大肠菌(F.C)的贡献，和他们对紫外消毒的影响。一个联合消毒过程(有随后的UVdisinfection的氯化)被测试改进消毒效果。结果显示推迟的固体的内容，特别大粒子，在紫外消毒效率上有强壮的影响；D>10个μm粒子联系了F.C。是困难的被消毒并且是在激活曲线的F.C的跟踪的主要部分。氯化前能减少在第二等的自河和变换的粒子的数字大粒子进小的，在紫外消毒上减少粒子的影响并且提高联合过程的抵抗能力到粒子装载。

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简介：白手起家的断然控告了nanofiltration(NF)膜被用来对待纺织品染料自河为影响象操作压力那样的nanofiltration过程的复用，和因素产生水，喂fl嗷并且膜清洗被调查。与1.0MPa和40L/h的feedflow的一个应用压力，这NF膜在完成100%的浓度移动的TDS，咸度和电导率为CODcr和约51.0%的减小有93.3%的移动。通过这膜获得的permeate对再循环合适。而且，膜能在与1%NaOH答案被清洗以后被再使用。

简介：Thetreatmentandresourcereuseof1,2,4-acidproducingwastewaterbyself-mademacroporousadsorptionresinND,A-107wasstudiedinthispaper.Optimumadsorptionanddesorptionprocessparameterswereacquiredbysystematicallystudy.ThepolymericresinNDA-107indicatedgoodadsorption&desorptionof1,2,4-acidinthewastewater.Theremovalefficiencyof1,2,4-acid,CODerisabout78%,72%respectively.Itisevidentthatthisadsorptionprocessisanefficienttreatmentmethodfor1,2,4-acidproducingwastewater.Atthesametime,theaccumulationandresourcereuseofl,2,4-acidcanberealizedinthisprocess.