Chemical treatment of potable water as it impacts on environmental compliance
- Calgon Corp., Pittsburgh, PA (United States)
The USEPA 503 rule regulates the disposal of hazardous materials from POTWs. The rule establishes requirements for final use and discharge of sewage from publicly owned treatment works (POTWs) under three scenarios: when the sludge is applied to land for beneficial purposes; when it is disposed of in surface impoundments; and when it is incinerated. The rule does not apply to the processing of sewage sludge before its ultimate use or disposal. It only applies to sewage sludge generated or treated by POTWs that treat domestic sewage and municipal waste water. Zinc containing treatments play a dominant role in corrosion control for potable water systems, but are subject to the 503 rule limitation. This paper shows how to calculate the zinc loading in POTWs and what non-zinc chemistries are applicable to potable water systems.
- OSTI ID:
- 128626
- Report Number(s):
- CONF-950304--
- Country of Publication:
- United States
- Language:
- English
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