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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - URBAN RUNOFF

Bài viết này là một cuộc khảo sát kiểm soát và điều trị tràn cống thoát nước kết hợp (CSO). Các cuộc thảo luận công nghệ kiểm soát / điều trị bao gồm chủ yếu là điều trị hạ lưu đã được chia thành bảy phần: 1) 2) 3) 4) 5) 6) 7) Source Control: đường Sweeping Bộ sưu tập hệ thống điều khiển lưu trữ vật lý (có / không) Hóa chất Điều trị Điều trị Điều trị nâng cao sinh học khử trùng . | URBAN RUNOFF INTRODUCTION This article is a survey of control and treatment of combined sewer overflows CSOs . The discussions of control treatment technologies that consist mostly of downstream treatment have been divided into seven sections 1 Source Control Street Sweeping 2 Collection System Control 3 Storage 4 Physical with without Chemical Treatment 5 Biological Treatment 6 Advanced Treatment 7 Disinfection Storage is the oldest documented abatement measure currently practiced and it should be considered at all times in system planning because it allows for maximum use of existing dry-weather facilities. Physical with without chemical treatment will generally be the minimum required to meet discharge or receiving-water-quality goals. If a higher degree of organics removal is needed biological treatment should be examined. If maintaining a viable microorganism population is not feasible but removal of dissolved and colloidal organics is desired advanced treatment may be attractive. If disinfection is required it would follow some level of physical treatment. General discussions of CSO control treatment can be found in several documents including the following EPA-600 2-76-286 Cost Estimating Manual-Combined Sewer Overflow Storage and Treatment. NTIS PB 266 359 . EPA-600 8-77-014 Urban Stormwater Management and Technology Update and User s Guide. NTIS PB 275 654 . EPA-600 8-80-035 Urban Stormwater Management and Technology Case Histories. NTIS PB 81 107153 . EPA-670 2-74-040 Urban Stormwater Management and Technology An Assessment. NTIS PB 240 687 . Field R. and Lager J.A. Urban Runoff Pollution Control State-of-the-Art. Journal of Environmental Engineering Division ASCE Vol. 101 No. EE1 February 1975. Field R. and Struzewski Jr. E.J. Management and Control of Combined Sewer Overflows Journal of Water Pollution Control Federation Vol. 44 No. 7 July 1972. 1 SOURCE CONTROL STREET SWEEPING Street sweeping to remove accumulated dust dirt and litter has been shown to