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The Future of Sludge Disposal: A Fresh Perspective after Sandy

The Future of Sludge Disposal: A Fresh Perspective after Sandy. Jim Meehan – Executive Director Rahway Valley Sewerage Authority. Recent Plant Upgrade. Recently completed a plant expansion, including: Increased pumping capacity based on 100 year storm

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The Future of Sludge Disposal: A Fresh Perspective after Sandy

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  1. The Future of Sludge Disposal: A Fresh Perspective after Sandy Jim Meehan – Executive Director Rahway Valley Sewerage Authority

  2. Recent Plant Upgrade Recently completed a plant expansion, including: • Increased pumping capacity based on 100 year storm • Raised grade along river approximately 10 feet • Upgraded backup electric including a Cogeneration facility, allowing us to go on “Island Mode” for 16 days during Superstorm Sandy (Approximate Construction Cost: $170M)

  3. Storm Response Considerations • Additional Storage Tanks; think outside the box: • Utilize offline primary or secondary tanks • Temporarily increase SVI in secondary • Plan for out of state disposal sites • Modify bid specifications for sludge disposal/hauling to include alternate

  4. Review Possible Last Resort Options • Disposal at garbage incinerator facilities • Establish which facilities are available to a plant • Review any technology limitations to accepting biosolids. • Review permit barriers and weather emergency approvals would be possible. Begin discussions with appropriate agencies. • Onsite open air storage of dried/dewatered biosolids • Establish a location suitable for storage • Review storm water protection measures required

  5. Conclusions: • Advanced preparation will save time during emergency: • Plan a temporary thickening/dewatering scenario • Involve vendors early to establish a plan of action and have the required utilities and piping connections available • Review options for power generation and establish backup locations where temporary generators can be connected to critical equipment • May not be able to use plant distribution. Have equipment and/or building specific utility connection options.

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