Tham khảo tài liệu 'environmental engineering dictionary and directory phần 4', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | ExpressClean Reverse osmosis cleaning service by Coster Engineering. Expressor Belt filter press by Baker Process. extended aeration process A variation of the activated sludge process with an increased detention time to allow endogenous respiration to occur. Extendor Detention tank for polymer mixing systems by Semblex Inc. extraction steam Steam removed from a turbine at a pressure higher than the lowest pressure achieved in the turbine. Extractor Horizontal belt press by Baker Process. Extractoveyor Composted sludge conveyor system by Fairfield Service Co. Extreme Duty Mechanical digester sludge mixer by WesTech Engineering Inc. extremely hazardous substances Any of 406 chemicals identified by the EPA as toxic and listed under SARA Title III. The list is subject to periodic revision. Exxflow Crossflow microfiltration system by WesTech Engineering Inc. E-Z Batch type centrifuge by Western States Machine Co. E-Z Tray Air stripper by QED Environmental Systems Inc. EZ-BOD Sludge stability indicator by Bioscience Inc. F F See Fahrenheit F . F wastes A class of hazardous wastes categorized from nonspecific sources as established by the EPA and identified in 40 CFR . . Relational database fugitive emissions management system by Enviro-Metrics. F M See food-to-microorganism ratio F M or F M . fabric filter A cloth device that catches dust particles from industrial emissions. FAC See free available chlorine FAC . face velocity The linear velocity of air through a filter. facultative bacteria Microbes with the ability to survive with or without the presence of oxygen. facultative lagoon A lagoon or pond in which stabilization of wastewater occurs as a result of aerobic anaerobic and facultative bacteria. facultative ponds See facultative lagoon. Fahrenheit F A temperature scale on which water s freezing point is 32 and boiling point is 212 . Fairfield In-vessel composting system by Fairfield Service Co. falaj System of surface or subsurface channeling of .
