Explain conveyance of sewage.

Conveyance of sewage refers to the process of transporting wastewater and sewage from homes and businesses to a treatment facility. This is typically done through a system of pipes, pumps, and lift stations that are designed to collect and transport the sewage to the treatment facility.

There are several methods of conveying sewage, including gravity flow, pumping, and vacuum systems. In a gravity flow system, the sewage flows by gravity through pipes to a treatment facility, with the slope of the pipes determining the rate of flow. In a pumping system, sewage is lifted and transported through pipes using pumps, which can be necessary in areas where the elevation of the treatment facility is higher than the sewage source. In a vacuum system, a vacuum is used to lift the sewage through a small-diameter pipe, which can be useful in areas with limited space for pipes.

Conveyance of sewage is an important aspect of modern infrastructure, as it helps to protect public health by ensuring that wastewater and sewage are properly treated and disposed of. It also helps to protect the environment by preventing the contamination of surface water and groundwater sources.