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Edition:Final report
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Abstract:Current research on stormwater maintenance residuals has revealed that the source and nature of these materials is extremely variable, that regulation can be ambiguous, and handling can be costly and difficult. From a regulatory perspective, data indicate that the TPH and PAH's are the major constituents of concern but in most cases do not pose a substantial environmental impact if handled appropriately.
Several operational facilities were reviewed. Though the operators are not completely satisfied with facility performance, some reported successes involve decanting prior to dumping on the dewatering slab, and piling the solids fraction deeper. While decant water is being directed to sanitary sewer treatment plants, the solids have various disposal options. Recommendations are made to consider the investigation of alternative technologies such as dewatering in filter containers and co-composting.
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