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Volute Press Application on Water Treatment Residuals

2013 NYC Watershed / Tifft Science & Technical Symposium. September 19, 2013. Volute Press Application on Water Treatment Residuals . # obgPresents. City of Ithaca. Located on south end of Cayuga Lake in Finger Lakes Region Population: 30,000 Average water demand: 3 MGD

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Volute Press Application on Water Treatment Residuals

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  1. 2013 NYC Watershed / Tifft Science & Technical Symposium September 19, 2013 Volute Press Application on Water Treatment Residuals #obgPresents

  2. City of Ithaca • Located on south end of Cayuga Lake in Finger Lakes Region • Population: 30,000 • Average water demand: 3 MGD • Greater Ithaca area is served by three public water systems • Existing 6 MGD conventional water treatment plant was constructed in 1903 • Last major upgrade was completed in 1951 • City decided to replace its plant rather than buy water from another system Ithaca \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  3. Water Supply Project Elements • Dredging water supply reservoir • New gatehouse and intake • Dam safety improvements • Raw water transmission maintenance • Re-construction of 6 MGD filtration plant with conventional pre-treatment and membranes • Interconnections with other utilities • Residual dewatering facility • Distribution system improvements \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  4. Existing Lagoon Dewatering Operations • Cleaning typically required 6 people and at least a week per lagoon • Some years, both lagoons are cleaned • Cleaning often occurs when resources are most valuable • Significant liner protection and maintenance required • Sludge is blended with compost and earth spoils to create manufactured topsoil \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  5. Evaluation of Dewatering Options \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  6. PW Tech Volute Press \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  7. Typical Installation \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  8. PWTech Video \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  9. PWTech Volute Press Pilot \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  10. BDP Industries Pilot \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  11. Piloting Results *All tests performed using PACL sludge \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  12. Raw Water Solids Data \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  13. Proposed Facilities \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  14. Proposed Building – North Elevation \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  15. Proposed Building – West Elevation \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  16. Current Project Status \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

  17. Lessons learned • Coordinate pilot unit capacity with available sludge capacity • Consider the environmental conditions – polymer preparation is temperature dependent • Pilot all units under consideration at same time; Side-by-side pilot is much easier to evaluate • Pilot optional press features as needed to achieve performance • Water plant sludge is not the same as wastewater plant sludge \MD\Pres_Int&Corp\Tech-Conf\2013\NYCWatershedTSTS

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