How does sewage travel from your home to a sewage plant?
Sewage travels from your home by pipes. The flow is due to the slope of the pipes so the sewage is essentially flowing downhill to a collection well or pit.
The collected sewage is pumped from the pits into a forcemain which pressures the material to a sewage treatment plant.
In rural ares or industrial parks sewage sometimes flows to a collection tank which is pumped out and into a truck which carries it to sewage plant for discharge to the treatment system
Down the sewers to the sewage treatment plant, just like when we flush the toilet or take a shower or brush our teeth or wash our hands. In many cities runoff from the streets also goes into the same sewers, but as heavy rains can cause the sewage treatment plant to overflow and allow untreated sewage out, there is often a separate sewage system for this that does not go to the sewage treatment plant.
Sewage is a rich source of nitrogen and phosphorus which facilitates plant growth. As "night soil" sewage is a historic fertilizer in much of the third world. In urban areas sewage is often contaminated with heavy metals (lead, chrome, zinc) and may impact plant growth. In water sewage encourages algal growth leading to eutrophication and algal blooms which in turn deplete oxygen levels causing fish kills.
the sewage treatment plant is physically, biologically and chemically clean & safe to discharge back to environment To prevent the pollution of ground water, surface water, marine environment, Flora & Fauna, General environment. To reduce the spread of communicable diseases caused by the pathogenic organisms in the sewage such as cholera, typhoid, diarrhea, intestinal worms etc.
There are two types of micro organisms at work in a sewage treatment plant., aerobes (oxygen needing microbes) and anaerobes (microbes that do not need oxygen) The anaerobes are mixed with the raw delumped sewage in aerated basins. They rat up the small particles and dissolved organic material present in the sewage to produce carbon dioxide and their own microbe bodies. The Anaerobes are stained out and the sewage is discharged to the effluent discharge…
From an engineer: All organic material (poop) is "eaten" by microorganisms, leaving only minerals. Sewage treatment simply speeds the process. It is similar to burning, which leaves only ash (mineral). Note: the final step in sewage treatment is chlorination, which means essentially you could drink the liquid coming out of a sewage treatment plant and not get sick!! Yuk!
All water we drink and produce as sewage is part of the water cycle. Water is taken from rivers and lakes and treated to drinking water standard. Wastewater then goes down the sewers to a wastewater treatment plant where it is treated to clean it and then put back into rivers........so you're not directly drinking sewage!
Sanitary sewage is treated in plants that mix the raw sewage with bacteria to consume the waste materials. The nature of these bacteria is that they need oxygen to live and grow (they are aerobic bacteria). The plant equipment mixes air into the sewage to increase the transfer of oxygen to the water at much higher rates than quiescent conditions. A an added advantage this mixes the bacteria and sewage so that the bacterial population…
* When sewage is not properly collected and transported to sewage treatment plant in a sanitary way, sewage emanates foul odour causing air pollution and gives room for mosquito breeding leading to spread of diseases. * When sewage is discharged into river bodies without proper treatment, organic matters present in sewage causes depletion of dissolved oxygen which in turn affect aquatic eco system existing in the water bodies * Some gases like methane, carbon-di-oxide, sulphur-di-oxide…