Water Quality And Wastewater Management

WASTE WATER MANAGEMENT It is a common practice , particularly in the Western United States , to treat wastewater to a very high level , and then inject it back into ground , where it can be used to replenish the groundwater table for drinking . Suppose that you are managing a large water district . A local city council member wants to use secondary treated wastewater instead of tertiary treated wastewater to recharge the groundwater basin .Sewage treatment or wastewater treatment incorporates three steps :primary , secondary and tertiary . It involves the step wise removal of waste products from water , and separation of the constituents of sewage into its component parts . These methods are also used to recharge groundwater basin for mass water production for localities .I would advise the local council member to employ tertiary wastewater to recharge instead of the secondary treated wastewater . The first reason is because of the associated improved level of purity associated with the procedure . Processes in tertiary treatment are collectively referred to `effluent discharge ‘ because f the higher order of purification achieved by the procedure . This is important when considering water for groundwater recharge .Besides , it is equally important to know that filtration , disinfection and other method employed for tertiary treatment ensure the final separation of existing waste from the wastewater . This makes the acquired water fir for various purposes including recharge of ground water . Although a great deal of separation is also achieved in secondary treatment but it can not be compared with that of the tertiary .Waste management has become a major issue for environmental research workers and health agencies because of the risk of infection and disease associated with poor sanitation and inordinate handling of waste . By virtue of the tertiary treatment plan , this risk is further reduced due to advanced separation techniques incorporated in the scheme . This...