What do you mean by Pump house or room in WTP?
A pump house, sometimes referred to as a pumping station or a sewage pumping station, is a chamber for storage and collection that elevates and distributes sewage or wastewater when gravity alone is unable to carry it. Water is injected into the system at the station, where the pressure is adjusted depending on the slope. This system is designed to account for variations in water levels caused by gravity. The equipment in the pumping station can drain water from low-lying areas, circulate water in treatment systems, and supply water to canals. A pumping station has significant up-front expenses, and the pumps use a lot of electricity to run.
Locating the Pumps and Pumping Stations:
When choosing the location for the pumps and pumping stations, the following factors should be taken into consideration:
(i) The pumps should be situated above H.F.L.
(ii) The site should have the necessary amount of water.
(iii) The pumping station ought to be located higher than all potential contaminant sources.
(iv) The location site ought to allow for potential growth and expansion in the future.
(v) The water source needs to be dependable. If a river meanders, the location should be chosen so that the pumping station has access to water.
If the site is not chosen properly, there may be a permanent water shortage that will lead to problems.
Equipment for Water Treatment Plants for Group Housing and Societies that must be installed in the pump room
Every pump station needs to have the following essential components: a wet well, pumps, pipework with related valves and strainers, motors, power supply system, equipment control and alarm system, odor control system, and ventilation system.
1. Wet well: Designing a wet well depends on the configuration of the pump station (dry or submersible well) and the kind of pump controls (constant or variable speed). Wet wells are normally sized to prevent rapid pump cycling but small enough to avoid a prolonged detention period and the release of accompanying odors.
In constant speed pumps, the wet-well maximum detention time is commonly 20 to 30 minutes. Wet-well detention times can be decreased to 5 to 15 minutes by using variable frequency drives to manage pump speed. The bottom slope of a wet well should be constructed to allow for a little accumulation of dirt and self-cleaning. In order to reduce pump clogging issues, bar screens are frequently put in or upstream of the wet well; however, screens are typically not needed for in-plant stations because the majority of the course material is typically removed at headworks in the plant.
2. Wastewater pumps: In order to give head capacity characteristics (elevation of a free surface of water) that as nearly as possible match to the changes in wastewater quantity, the number of wastewater pumps and related capacity should be chosen. This can be done by creating pump/pipeline system head-capacity curves that display every head and capacity situation that the pumps will need to operate in.
The capacity and range of flow of the pump station heavily influence how many pumps should be installed there. Two pumps are often installed in small stations with maximum flows of less than 2580 lpm (680 gpm), with each unit having the capacity to meet the maximum influent rate. The size and quantity of pumps for large pump stations should be chosen such that the flow range can be achieved without requiring a lot of wet-well storage or frequent starting and stopping of pumps.
3. Ventilation: If the lift station contains a portion of the facility that staff members frequently enter, ventilation and heating are necessary. Ventilation is crucial to avoiding the buildup of explosive and/or hazardous gases in the pump station. Ordinarily, dry-well ventilation rules provide for 30 intermittent air changes or 6 continuous air changes per hour. In a normal wet well, 12 continuous air changes or 60 intermittent air changes are needed every hour.
4. Odor control: Pumping stations frequently need to regulate odors. Reduce wet-well turbulence as an effective and frequently used odor control solution. The collection of odors produced at the pump station and their treatment in scrubbers or biofilters, or the addition of odor control chemicals to the sewage upstream of the pump station, are both more efficient solutions. Chlorine, hydrogen peroxide, metal salts (ferrous chloride and ferric sulphate), oxygen, air, and potassium permanganate are common odor-controlling chemicals.
5. Power supply: A fundamental design factor is the dependability of the power for the pump motor drives. A standby generator on site, a suitable portable generator with quick connections, a standby engine driven pump, ready access to a suitable portable pumping unit and appropriate connections, and the availability of a sufficient holding facility for wastewater storage upstream of the pump station are some of the frequently used methods for emergency power supply.
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