How do pumpers dispose of grease trap waste when municipal wastewater treatment plants accept fewer gallons — if they accept them at all — and counties ban land application? A growing number of pioneers are recycling the grease into various products for a diverse market. Some even turn away customers anxious to get rid of it because their facilities can’t handle the demand.To understand the best uses for grease trap residuals now and in the future, Pumper talked to A. Robert Rubin, Ph.D., senior scientist at the environmental engineering firm of McKim & Creed Consulting in Cary, N.C. Rubin, a
