强化气浮法在膜法海水淡化预处理中去除藻类的应用

WaterPollutionandTreatment水污染及处理,2020,8(1),6-13PublishedOnlineJanuary2020inHans.http://www.hanspub.org/journal/wpthttps://doi.org/10.12677/wpt.2020.81002文章引用:黄和,李世凯.强化气浮法在膜法海水淡化预处理中去除藻类的应用[J].水污染及处理,2020,8(1):6-13.DOI:10.12677/wpt.2020.81002ApplicationofEnhancedAirFlotationMethodtoRemoveAlgaeinMembraneDesalinationPretreatmentHeHuang1,ShikaiLi2*1AnhuiElectricPowerDesignInstituteCo.,Ltd.,ChinaEnergyConstructionGroup,HefeiAnhui2CollegeofResourcesandEnvironment,WuhanUniversity,WuhanHubeiReceived:Nov.22nd,2019;accepted:Dec.10th,2019;published:Dec.17th,2019AbstractAttheconventionalmembranedesalinationprocess,insufficientinvestigationswerecarriedonthenegativeimpactofalgaepollutiononthedesalinationresults.Aserioussituationofreverseosmosismembranepollutionoccurswhenalgaeoutbreaks.Aspeciallydesignedenhancedairflo-tationprocessisusedasapretreatmentprocessforthereverseosmosismembrane.Afterthepretreatmentsystem,thevolumeconcentrationofmicrobubbleshasbeengreatlyincreased,themicrobubbleparticlesizeismorereasonable,andthedispersionabilityisstronger.Thealgaeremovalratecangenerallyreachmorethan99%,whichisgreatlyimprovedcomparedwiththeconventionalairflotationprocess.Theeffluentafterairflotationpretreatmentisstrengthened,andthealgaeremovalabilityisfurtherenhancedbyusinganalgicide.Theoptimallydesignedairflotationprocesshasbroadapplicationprospectsasamembranedesalinationpretreatmenttechnology.KeywordsMembraneDesalination,AirFloatation,Pretreatment,Algae强化气浮法在膜法海水淡化预处理中去除藻类的应用黄和1，李世凯2*1中国能源建设集团安徽省电力设计院有限公司，安徽合肥2武汉大学资源与环境学院，湖北武汉*通讯作者。黄和，李世凯DOI:10.12677/wpt.2020.810027水污染及处理收稿日期：2019年11月22日；录用日期：2019年12月10日；发布日期：2019年12月17日摘要针对目前膜法海水淡化工艺中，对藻类污染负面影响预计不足，导致藻类爆发时，反渗透膜污染严重的情况，提出使用特殊设计的强化气浮法作为反渗透膜的预处理工艺，经过改造后的预处理系统，微气泡体积浓度大幅提升，微气泡粒径更合理、分散能力更强，对藻类去除率普遍可达到99%以上，相对常规气浮方法有大幅提升。强化气浮预处理后的出水，使用抑藻剂进一步强化藻类的去除能力。优化设计的气浮工艺作为膜法海水淡化预处理技术具有广阔的应用前景。关键词膜法海水淡化，气浮，预处理，藻类Copyright?2020byauthor(s)andHansPublishersInc.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CCBY).http://creativecommo