Watertreatmentoperationsfulfilloneorthreekeytasks:removalofparticulatesubstancessuchassandandclay,organicmatter,bacteria,andalgae;removalofdissolvedsubstancessuchasthosecausingcolorandhardness;andremovalordestructionofpathogenicbacteriaandviruses.Theactualselectionoftreatmentprocessesdependsonthetypeofwatersourceandthedesired...
Water Treatment 水处理.ppt WasteWaterTreatment EHSSept12th2012 Topics WasteWaterTreatment:–Typesofwastewater–PrimaryWasteWaterTreatment–SecondaryWasteWaterTreatment–TertiaryWasteWaterTreatment LearningOutcomes Whenyouhavestudiedtheinformationinthesenotesyoushouldbeableto:•Explainwhywastewaterhastobetreated•Describe...
Storageanddistribution Jerrycansforthebeneficiaries Re-contaminationrisks 1.Aimofthetreatmentprocess Watertreatmentprocesses WATSANM15ERU 7 2.Removalofsolidsin suspension Watertreatmentprocesses WATSANM15ERU 8 Why?-aspect -efficiencyofdisinfection Controlparameter:Gravityanalysis Turbidity(NTU) Aim:<5NTU Methods...
WaterTreatment要点解析.ppt,* 污水处理分为:物理处理法,化学处理法,生物处理法 生物处理法分为活性污泥法和生物膜法,目前城市污水主要使用活性污泥法 * 粗格栅(50-100mm) 中格栅(10-40mm) 细格栅(3-10mm) * * 高链式格栅除污机 高链式格栅除污机适用于泵站及污水
Water Treatment Plants. Removes pathogens and toxic elements to prepare water for use in homes and businesses Makes water potable (drinkable) IV. Using water wisely A. Water pollution 1.Pollution= the introduction of harmful substances into the environment – Only 3% of the Earth’s water is dr...
Advanced Method For Sewage Water Treatment PPT
Waterandwastewatertreatmentprocesses JohnScottMeschkeOffice:Suite2249,4225RooseveltPhone:206-221-5470Email:jmeschke@u.washington.eduGwy-AmShinOffice:Suite2339,4225RooseveltPhone:206-543-9026Email:gwyam@u.washington.edu Keypoints ••••PurposeoftheindividualunitprocessesThetypicaloperatingconditionsThe...
Unit-4-water-cyclePPT优秀课件 Unit4 Watercycle 1 PartICommunicativeActivities Book2-Unit24 Youmayexpressuncertaintylikethis:I’mnotquitesure...Youmayexpresscertaintylikethis:I’msureI’llbeverymuchinterestedinreadingyourarticle.MoreExpressionsforCertainty&Uncertainty 3 Book2-Unit12 Howtoexpresscertainty:•I...
1、Water ManagementOutline Hydrologic Cycle Water Use Categories Water Pollution Wastewater Treatment Water Use PlanningThe Water Issue Physical properties:Stores heat, for coolingActs as a solvent, carries wasteEvaporates when heated, hydrologic cycle We careQuantityQuality, potable waterThe Water Iss 2...
Water Management水资源管理.ppt,Water Management Outline Hydrologic Cycle Water Use Categories Water Pollution Wastewater Treatment Water Use Planning The Water Issue Physical properties: Stores heat, for cooling Acts as a solvent, carries waste Evaporate