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environmental engineering dictionary and directory phần 8

Tham khảo tài liệu 'environmental engineering dictionary and directory phần 8', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | SQG See small quantity generator. SQHs See small-quantity handlers. Squarex Circular sludge collector mechanism with pivoted corner extensions for square basins by GL V Dorr-Oliver Inc. squeegee See small quantity generator SQG . SR-7 Ion exchange resins by Sybron Chemicals Inc. SRC Solvent-refined coal. SRF See State Revolving Fund SRF . SRM Standard reference method. SRT See solids retention time SRT . SS See suspended solids SS . SSA Sole source aquifer. SSAC Soil site assimilated capacity. SSI Screening Systems International. SSMS Spark source mass spectrometry. SSO See sanitary sewer overflow SSO . SSPC Society for Protective Coatings. Formerly Steel Structures Painting Council. SSPMA Sump and Sewage Pump Manufacturers Association. SST See stainless steel SST . SSV See settled sludge volume SSV . Stabilaire Package contact stabilization treatment plant formerly offered by USFil-ter Envirex. stability index See Langelier Saturation Index LSI . stabilization pond A large shallow basin used for wastewater treatment by natural processes involving the use of algae and bacteria to accomplish biological oxidation of organic matter. StablCal Formazin turbidity standards by Hach Co. stable air A motionless mass of air that holds instead of dispersing pollutants. stack 1 A vertical conveyance method for the elevated discharge and dispersion of pollutants. 2 Common term for the key element of an electrodialysis unit consisting of multiple membrane cells with electrodes on both ends. stack effect Air as in a chimney that moves upward because it is warmer than the ambient atmosphere. stack gas See flue gas. StackMasterIMS Continuous emissions monitor by Molecular Analytics LLC. stage One of several units of a flash evaporator each of which operates at a successively lower pressure. stagnant Motionless not flowing in a current or stream. Stahlermatic Rotating biological contacter wastewater treatment system by Stahler GmbH. stainless steel SST Corrosion resistant steel .