Waste water undergoes primary, secondary and tertiary treatment before it is reused for any alternative purposes. The black water and the grey water are the two basic classification of waste water. The determining factors in treating are the facilities available and the amount of waste that is targeted to be removed from the waste water. This involves different forms of treatment and purification processes before it can be made available for any alternative uses.
Waste water can be broadly classified into grey water and black water. It signifies the water that is derived from clean sources and that which does not contain human wastes or any other potentially harmful substances that pollutes the environment. It contains mostly that comes from dish washing or laundry cleaning.
Black water as the name signifies contains human waste and cannot be reused without proper processing. When water is gone through different levels of processing it ensures reduction of contaminants and also ensures cleaner. There are 3 effective treatment options and before these purification processes, waste water undergoes a pretreatment process. This process helps in removing larger wastes that has chances to clog the pumps and cause delay in the primary treatment.
Primary treatment is a process where heavy solids that are present in the water to settle down into different layers of removable waste. This treatment ensures heavy wastes getting settled in the bottom and oil, greases and other lighter waste materials floating at the top.
Secondary water treatment is a specialized process that helps in removing the microbial unicellular life or the large amounts of microbes. This process also involves the use of filter beds that helps in the oxidation and purification of water.
Tertiary water treatment involves in treatment to an extent that it can be released to places that has a delicate ecosystem. This clean water can also be recycled into the natural resources and supply once more.
In conclusion, treatment is highly essential because the impurities and the decaying matter, necessarily robs the valuable oxygen from natural water and kills the water based organisms when it is directed unpurified to any water resources.