Transcription of CHAPTER 3: PUMPING STATION 3.1 INTRODUCTION
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CHAPTER 3: PUMPING STATION 3.1 INTRODUCTION
Part B: Operation and Maintenance3 - 1 CHAPTER 3: PUMPING STATIONCHAPTER 3: PUMPING INTRODUCTIONP umping stations are either as in-line for lifting the sewage from a deeper sewer to a shallow sewer or for PUMPING to the STP or the out fall. They are required where low lying development areas cannot be drained by gravity to existing sewerage infrastructure, and/or where development areas are too far away from available sewerage infrastructure to be linked by gravity. The O&M of PUMPING systems presented here applies to all such types of PUMPING stations. TYPES AND STRUCTURE OF PUMPING STATIONSThe type of PUMPING stations can be (a) Horizontal pumps in dry pit, (b) Vertical pumps in dry pit, (c) Vertical pumps in suction well and (d) Submersible pumps in suction sump. All these types include a sewage-receiving sump, which is called suction sump or wet well. These types of pump arrangements are shown in Figure Source: CPHEEO, 1993 Figure Typical drywell and wetwell Dry PitThe size of the dry pit should be adequate for the number of pumps planned and should be such as to handle the sewage load at the desired PUMPING capacity.
arrangements are shown in Figure 3.1. Source: CPHEEO, 1993 Figure 3.1 Typical drywell and wetwell installations 3.2.1 Dry Pit The size of the dry pit should be adequate for the number of pumps planned and should be such as to handle the sewage load at the desired pumping capacity. Allowance should also be made for future requirements of ...
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