tailieunhanh - environmental engineering dictionary and directory phần 9

Tham khảo tài liệu 'environmental engineering dictionary and directory phần 9', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | wet air oxidation WAO Process where sludge and compressed air are pumped into a pressurized reactor and heated to oxidize the volatile solids without vaporizing the liquid. wet bulb temperature The temperature reading taken from a thermometer with a wetted wick surrounding its bulb. wet electrostatic precipitator WESP An electrostatic precipitator whose collecting electrodes are rinsed with water to remove particulates. wet scrubber An air pollution control device used to remove particulates and fumes from air by entraining the pollutants in a water spray. wet steam Steam containing water droplets. wet weather flow The flow in a combined sewer during snowmelt and rain events. wet well A chamber in which water or wastewater is collected and to which the suction of a pump is connected. Wetec Wet aeration installation system by Aeration Technologies Inc. wetlands Surface areas including swamps marshes and bogs which are inundated or saturated by groundwater frequently enough to support a prevalence of vegetation adapted for life in saturated soil conditions. wetlands treatment A wastewater treatment system using the aquatic root system of cattails reeds and similar plants to treat wastewater applied either above or below the soil surface. wetness index The precipitation for a given year expressed as a ratio of the mean annual precipitation. wetted perimeter The length of wetted contact area between a stream of flowing water and the channel that contains it. WFI See water for injection WFI . Wheeler Sand filter underdrain by Roberts Filter Group. Whirl-Flo Solids handling vortex pump by ITT A-C Pump. Whirl-Wet-AG Airborne dust collector by Tri-Mer Corp. Whispair Rotary blower and gas pump product line by Dresser Industries Roots Division. white goods Large household appliances such as stoves refrigerators or washing machines which are discarded as wastes. white water Filtrate from a paper- or board-forming machine usually recycled for density control. Whitewater .