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Case Study: Bio-Augmentation Process Reduces Sludge Build-Up, Improves Effluent For Meridian, MS
January 30, 2008
Click Here To Download:•Case Study: Bio-Augmentation Process Reduces Sludge Build-Up, Improves Effluent Quality For Meridian, MS
By Technautic International Inc.
Wastewater treatment plants are constantly facing the battle of reducing sludge while trying to keep the cost of energy down. The city of Meridian, Mississippi, which operates two wastewater treatment plants, used to fall into this category until it was introduced to the Sewper Rx, a patented bio-augmentation process designed to reduce noxious odor and organic sludge build-up, while improving effluent quality, in the summer of 2005.
The Main plant in Meridian is an 11MGD extended aeration design, while the East Plant is a 1.2MGD SBR design running at approximately 50% capacity. It was determined that the smaller, less complex East Plant would be the best place to run an initial trial of Sewper Rx.
In August 2005, the Sewper Rx was introduced to Meridian officials in an effort to assist management with the reduction of solids costs, odor problems and energy costs. It was agreed that the 300,000 gallon aerated digester in the East Plant could be treated. Up to this time the plant was pressing 35 tons of sludge per month. The primary goal of the treatment was to see if capacity could be improved in the digester and if a recognizable savings could be made in the amount of sludge pressed over time.
Within 60 days of the initial Sewper Rx introduction, the reduction in sludge in the digester made it possible for the plant to completely quit pressing sludge altogether. In other words, the entire solids output of the plant was being accepted into the digester without the need for pressing and hauling sludge from the press room. The press remained idle for 15 months, and during that time the volatile suspended solids (VSS) remained flat at approximately 10,000 mg/l. This meant that the Sewper Rx process was continuously consuming 100% of the incoming organics.
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Click Here To Download:•Case Study: Bio-Augmentation Process Reduces Sludge Build-Up, Improves Effluent Quality For Meridian, MS
