The Gallatin (Tenn.) Wastewater Treatment
Facility used to pay farmers 2.5 cents per gallon — up to $25,000 per month — to land-apply liquid Class B biosolids. Today, the plant produces a lime-stabilized Class A biosolids product that farmers can take away at no charge — and in the future may purchase by the ton.
It's all the result of a major upgrade that doubled the plant's design capacity to 12 mgd and added a lime stabilization building. Although the biosolids facility went online only last February, the product is already gaining favor with farmers and
