Dear all:
This is more like regulatory questions. I wonder if anyone has idea how EPA regulate wastewater treatment in PCB and semi-conductor industry. These foundries use different chemicals in various manufacturing processes and result to many wastewater streams. They may contain acids, metals, and other toxic materials. Concentration and flowrate of each streams are also quite different. In the meantime, some wastes are collected, stored, transported, treated/disposed, and even recycled.
Does EPA set rules on which streams should go to wastewater treatment or be treated separately?
My understanding is that wastes, such as wasted concentrated acids, can be recycled and reused. They are considered as industrial wastes. Is this correct? Are there any rules or recommendations to separate particular streams in order to reduce trace pollutants in the treated wastewater? Are the separated wastewater considered as industrial wastes?
Thanks!
This is more like regulatory questions. I wonder if anyone has idea how EPA regulate wastewater treatment in PCB and semi-conductor industry. These foundries use different chemicals in various manufacturing processes and result to many wastewater streams. They may contain acids, metals, and other toxic materials. Concentration and flowrate of each streams are also quite different. In the meantime, some wastes are collected, stored, transported, treated/disposed, and even recycled.
Does EPA set rules on which streams should go to wastewater treatment or be treated separately?
My understanding is that wastes, such as wasted concentrated acids, can be recycled and reused. They are considered as industrial wastes. Is this correct? Are there any rules or recommendations to separate particular streams in order to reduce trace pollutants in the treated wastewater? Are the separated wastewater considered as industrial wastes?
Thanks!
