Treatment Strategies for Removal of Microbial and Other Contaminants from Spent Filter Backwash Water

摘要

The 1996 Safe Drinking Water Act Amendments requires that the Environmental Protection Agency (EPA) "govern" recycling of spent filter backwash water (SFBW) within the treatment process of public water systems by August 2000. EPA in its draft preamble requires all public water systems to recycle SFBW before rapid mix process; instructs direct filtration plants to submit a report to primacy agency on their capability to treat SFBW; instructs water treatment plants (WTPs) with less than 20 filters to conduct a self assessment of their recycle practices for submission the state; and may require equalization for all WTPs recycling SFBW.