Municipal wastewater treatment plants (WWTPs) are primarily designed to treat domestic wastewater, and therefore, industrial wastewater with exceptionally high nutrient or organic matter content may disturb the treatment process, especially, if the load is very sudden or very high. Furthermore, many hazardous substances in industrial waste may inhibit biological treatment in WWTP. Rather simple and cheap solutions may markedly improve the situation at WWTP. Close cooperation between the industry and WWTP and instant notifications of any exceptional loads form industries or a balancing tank to enable gradual discharge of the load to the WWTP help to adjust treatment process at WWTP and avoid damages. Furthermore, industry should pre-treat their waste water before discharging it to the WWTP if necessary.
Project BEST aims to improve cooperation between municipal WWTPs and their industrial customers to result in better process control and treatment of industrial effluents, and thus, reduce the load of nutrients and hazardous substances in outgoing waste waters.
The investing partners in project BEST have created new models for cooperation between industry and WWTP. Furthermore, the project has collected good examples of cooperation form the partner countries.