John Fondren, supervisory chemist, Industrial Waste Treatment Plant, Public Works, Installation and Environment Division, (left), evaluates sludge dewatering on the IWTP’s belt press as Steve Nelson, industrial waste water operator, IWTP, Public Works, I&E Division, looks on. The belt press thoroughly removes water from waste sludge prior to disposal offsite. - John Fondren, supervisory chemist, Industrial Waste Treatment Plant, Public Works, Installation and Environment Division, (left), evaluates sludge dewatering on the IWTP’s belt press as Steve Nelson, industrial waste water operator, IWTP, Public Works, I&E Division, looks on. The belt press thoroughly removes water from waste sludge prior to disposal offsite.