the sewage plant works by having a primary treatment that help take out all of the excess oil and trash that goes into it then comes the secondary treatment that they put chloride in it to kill all...
There are basically two types of sewage treatment plants 1. Chemically treated - where chemicals are added to break down the effluents and disinfect it2. Biologically treated - the effluent is broken...
According to the Ask Waters database, there were 21,604 publicly owned wastewater treatment facilities currently in operation as of 2004 (the most recent data available). You can find this...