The ADS 30-cubic-yard dewatering unit from AQUA-Zyme Disposal Systems can be filled with 22,000 to 25,000 gallons of grease trap waste or municipal biosolids at 1 to 2 percent solids in about two hours. After draining 24 hours, the unit can be hauled to a landfill or other permitted facility. Biosolids volume can be reduced by 80 percent with reductions to 98 percent in BOD, COD, FOG and TSS. Effluent is clear and sewerable. The unit has few moving parts, and standard equipment includes roll-over tarp system; side, floor and center screens; 1/4-inch floor plate; seven-gauge side plates; eight drain ports; two inlet ports; and a long-handle scraper. Fifteen-cubic-yard units are available. 979/245-5656; www.aqua-zyme.com.