Company has helped develop a highly innovative AD system that allows a tomato processor to use its leftover tomato leaves to generate biogas, providing heat and electricity for the processing plant. The masses of thick tomato leaves are fed into a hopper, from where they are chopped by a macerator. At this stage a stainless steel 5.5 kW MPTKR chopper pump is used to break down the organic plant material in a reception tank. After being physically reduced, tomato leaf plant matter is then transferred to a buffer tank for 24 hours, where it is heated and also agitated by a 3kW DG pump to enhance the enzyme-breakdown process. The green liquid is then regularly transferred into a four-tank batch loading system where solids are further reduced in digesters by small transfer pumps (one in each tank).