substantial increase in waste products too. Nowadays the importance of the wastewater treatment (domestic and industrial … wastewater) need more attention in terms of the ecological balance. In this article a study was conducted and focused on the … different wastewater treatment technologies and standards. An inventory of the input (chemical substances, electrical energy etc …

Since the 1972 U.S. Clean Water Act, government and industry have invested over $1 trillion to abate water pollution …'s grants to municipal wastewater treatment plants, which account for $650 billion in expenditure, caused some of these declines …

Since the 1972 U.S. Clean Water Act, government and industry have invested over $1 trillion to abate water pollution …'s grants to municipal wastewater treatment plants, which account for $650 billion in expenditure, caused some of these declines …