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Open Access Improvements in Biosolids Quality Due to EPA's Pretreatment and Biosolids Programs

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As more baby-boomer wastewater treatment professionals approach retirement, treatment agencies must take steps to capture and preserve otherwise fleeting institutional knowledge for the next generation of specialists. The Northeast Ohio Regional Sewer District (the "District") has established a program for capturing pertinent information and transferring it to junior operators and engineers. A critical component of the District's data preservation and transfer program is an empirical study of the impact of two U.S. EPA programs on the quality of the District's biosolids. Publicly owned treatment works (POTWs) across the United States have realized measurable reductions in the heavy metals and substantial improvements in the quality of their biosolids. These changes are attributable to the enforcement of two important U.S. EPA regulations: (i) the General Pretreatment Regulations for Existing and New Sources of Pollution (40 CFR Part 403) and (ii) Standards for the Use or Disposal of Biosolids (40 CFR Part 503).


Document Type: Research Article


Publication date: April 1, 2007

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