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The plant’s treatment process consists of two primary clarifiers, biological treatment using rotating biological contactors (RBCs), two final clarifiers, and final discharge of treated effluent to the Mousam River, a small tidal stream. The Maine DEP is investigating what level of discharge the river can handle, both today and in the future, in order to manage the visual impact of algae. The upgrade project includes installing an effluent aeration system using pure oxygen through a speece cone™, a mechanical aeration tool that increases the dissolved oxygen of effluent to reduce its effect on the river, particularly during the summer when wastewater flow is heavier. This is one of the first known applications of this technology for this application. As part of the upgrade, the KSD is exploring the capabilities of new applications such as a hybrid fixed film/suspended growth treatment system to enhance the existing system and meet regulatory requirements. The upgrade project also includes installing a new disinfection system, relocating KSD administrative offices from the plant into a new building, constructing a new operations building that will house aeration, sludge storage, pumping systems, and an emergency generator. In addition, there are planned improvements to the air handling system all setting the stage for upgrades to plant control systems. Job
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Equipment For Sale
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Maine Legislature
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As
the Kennebunk Sewer District (KSD) celebrates its 50th anniversary, it
is in the midst of a $6-million, 2-phase upgrade and expansion project
to replace aging equipment, prepare for community growth, and meet
more stringent discharge regulations. 
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