From various outlets sewerage is collected and conveyed to Sumps, chambers, and tanks, or a main sewerage trunk pipeline. Sewerage conveyance happens through staggered pipe diameters, sizes increase progressively based on the amount of sewerage required to be conveyed. Both HDPE, as well as Cement Concrete pipes, are used.
In various situations mainly when gravity flow transfer of sewerage is not possible, or when the quantity of sewerage is very high, high pressure pumps are used to convey sewerage. Mainly in a sewerage trunk pipeline, with a large number of connection, sewerage is conveyed by high pressure suction pumps.
Manholes and Inspection chambers are used in various places in a gravity flow sewerage line, these serve the purpose of sewerage collection and flow to bigger trunk pipelines, or even for directional changes in the pipeline. Manholes & Chambers provide adequate solution for cleaning of Sewerage pipelines.
Sewerage is treated in STP or Sewerage Treatment plant. Sewerage goes through various phases of treatment. Primary Sewerage Treatment happens in a Clarifer where Lamella Plates are used to remove heavier sludge and solid particles. Secondary Treatment is associated with Chemicals treatment, where chlorination and chemicals dozing is involved, requiring Pipes & Spray Banks. In various cases re-usable water is recovered and sludge separated. Also in various cases treated sewerage is disposed off in the sea, using a Marine outfall pipeline.
During monsoon season flood/storm/rain water is contained and conveyed to pumping stations so that flooding within city limits can be minimized. In various cases flood, storm, rain water is conveyed to reservoirs for water conservation or let of in the sea, via a Marine outfall pipeline. HDPE Pipes are generally used for this purpose and usually these are connected to Pump-houses.
High Pressure Larger Diameter HDPE Pipes for Lifting Water from Water Bodies and reservoirs.
Large Diameter Pipes for supplying water over a distance, usually pipelines to-and-fro from pumping stations.
Water Supply pipelines connecting with Larger diameter pipes used for water transportation. These pipelines are for domestic applications and are laid in various parts of towns and cities to provide water supply.
House Service Connections are connections taken from Domestic water supply pipelines and connected to houses for domestic usage mainly for providing Drinking Water.
Projects for Water Conservation & Reuse are there to recover groundwater, floodwater, or stormwater and convey these to a reservoir to be used during dry periods. These projects are of foremost importance at a time of freshwater scarcity.