2、there comes water treatment process(倒装结构). 在取水工程后面,是水处理过程。,Profession-related English,Profession-related English,Current pretreatment processes in municipal water treatment are screening, presedimentation or desilting, chemical addition, and aeration. 目前市政水处理中的预处理工艺有筛...
Filter Types The slow sand filter was the first type of filtration used for water treatment. Slow sand filters operate with a water depth of 3 to 5 ft (0.9 to 1.5 m). Removal of contaminants occurs in the upper inches of the sand. When the head loss reaches the physical limit of the...
（2）secondarytreatment（biologicaltreatment）：二级处理活性污泥法Activatedsludgeprocess：Extendedaeration（totaloxidationprocess）：延时曝气法（aeration：n.曝气；通风,通气aerationtank:曝气池）（an）aerobictreatment:（厌）好氧处理Oxidationponds:氧化塘Septictank:化粪池(septic:n.引起腐败的东西;...
12、ocs “生物氧化是通过具有较好的沉降性能的分散的微生物絮凝物来进行的,这种絮凝物在很多方面被认为是自然固定的微生物细胞团。”,2020/7/25,Unit 12,13,3.Activated sludge process performance is judged on the basis of removal efficiency in terms the difference in BOD,COD,TOC,or DOC between the ...
1、ContaminantsinWater 1、1TargetofWaterQualityControl Keypoint:Protectionofhumanhealth DrinkingWaterQualityStandard Consumers WaterSupply WaterTreatment WastewaterDischarge (Domestic,Industrialetc.)WastewaterTreatment WaterBodies WaterIntake WastewaterDischargeRegulation WaterEnvironmentalQualityStandard 1、2CapacityofWater...
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
水污染英文 ppt课件 Waterpollution WaterisEssentialforLife Itcovers71%oftheearth'ssurfaceandmakesup65%ofourbodies.Withouttheseeminglyinvaluablecompoundcomprisedofhydrogenandoxygen,lifeonEarthwouldbenonexistent ThreefourthsofthesurfaceoftheEarthiscoveredwithwater.Nearly98%ofthewateronEarth,though,isseawater-unfit...
Unit 12 Wastewater Treatment.ppt Unit12WastewaterTreatment 第12单元废水处理 2020/4/22 Unit12 1 Whatcourseshaveyoulearnedduringcollege?Required/compulsorycourses:water/air/noisepollutioncontrolengineering;solidwastetreatment…Questions:Whatiswastewatertreatment?Howmanytypeswerethewastewatertreatmentdivided to?Whatisthe...
•Residences(kitchen,bathroom)•Commercialinstitution•Industrialinstitution(usuallyrequirespecializedtreatmentprocess)Howcanitbetreated?Howcanitbetreated?•collectedandtransportedviaanetworkofpipesandpumpstationstoamunicipaltreatmentplant3stagesofwatertreatment3stagesofwatertreatment•Primary–solidsareseparated•...
(GE Infrastructure Water Process Technology 2000) 要了解反渗系统应多久消毒一次,记着反渗水细菌采样必需在最坏的状况下进行。否则,你甚么知道反渗系统只需要每月消毒如果你在每月消毒后才采样? 还有记着细菌检测只是证明消毒程序的有效性,它不能表现消毒频率是否足够,所以请在您的水净化系统和血透机消毒前采集细菌...