Environmental Science A Study of interrelationships Unite 7 Water Management
Unite 7 Unite 7 Water Management Environmental Science Environmental Science A Study of interrelationships A Study of interrelationships
Useful Words and Expressions Fresh Water-淡水 Potable water-自来水;饮用水( tap water; drinking water) groundwater-地下水 coolant冷却剂 metabolic activity-新陈代谢活动 The Hydrologic Cycle-水文循环过程 Precipitation-降水 Transpiration-蒸腾(作用) Evaporation-蒸发(作用) Runo-径流 filtration→渗透 Point source-点源 Nonpoint source-面源
Useful Words and Expressions • Fresh Water –淡水 • Potable water –自来水；饮用水（tap water；drinking water ） • groundwater –地下水 • coolant –冷却剂 • metabolic activity –新陈代谢活动 • The Hydrologic Cycle –水文循环过程 • Precipitation –降水 • Transpiration –蒸腾（作用） • Evaporation –蒸发（作用） • Runoff –径流 • Infiltration –渗透 • Point source –点源 • Nonpoint source –面源
Impervious-不受影响的;不透水的 porous-多孔的 paved surface一铺设、硬化的路面 municipal wastewater-市政污水 water withdrawa-取(用)水量 non-consumptive use-非消耗性用水 consumptive use-消耗性用水 domestic use-生活用水 in- stream use一流域内(就地)用水 Water works-给水处理厂( Drinking water treatment plant) purification-(水的)净化 distribution-(水的)输送、分配 coagulation-凝聚 flocculation-絮凝
• impervious – • porous – • paved surface – • municipal wastewater – • water withdrawal – • non-consumptive use – • consumptive use – • domestic use – • in-stream use – • Water Works – • purification – • distribution – • coagulation – • flocculation – 不受影响的；不透水的 多孔的 铺设、硬化的路面 市政污水 取（用）水量 非消耗性用水 消耗性用水 生活用水 流域内（就地）用水 给水处理厂(Drinking water treatment plant) (水的）净化 （水的）输送、分配 凝聚 絮凝
sedimentation-沉淀 filtration-过滤 holding tank中间(水)池 thickening unit-(污泥)浓缩单元 sludge conditioning_污泥调理 tub bath-盆浴 shower-淋浴 spray-喷灌 trickle-滴灌 destruction-破坏 impounded water-被坝所围起来的水 arid region一干旱地区
• sedimentation – • filtration – • holding tank– • thickening unit– • sludge conditioning– • tub bath– • shower– • spray– • trickle– • destruction– • impounded water – • arid region – 沉淀 过滤 中间（水）池 （污泥）浓缩单元 污泥调理 盆浴 淋浴 喷灌 滴灌 破坏 被坝所围起来的水 干旱地区
The Water Issue Water in its liquid form is the material that makes life possible on Earth. All living organisms are composed of cells that contain at least 60 percent water. Furthermore their metabolic activities take place in a water solution Physical Properties Polar: One molecule is slightly positive, and the other is slightly negative Molecules tend to stick together Separate other molecules from each other(solvent) Stores Heat-retains heat Industrial coolant Modifies local climates
The Water Issue • Physical Properties: – Polar: One molecule is slightly positive, and the other is slightly negative. Molecules tend to stick together. Separate other molecules from each other (solvent). Stores Heat-retains Heat ¾ Industrial coolant ¾ Modifies local climates • Water in its liquid form is the material that makes life possible on Earth. All living organisms are composed of cells that contain at least 60 percent water. Furthermore, their metabolic activities take place in a water solution