Energy recovery technology from spent grains
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      Adopt energy technology to recover brewery residual material to reuse, can offset part of energy self necessary of brewery, can balance brewery necessary energy 35-70% (according to different energy utilization level).
Residual material mainly is spent grains (12 ～ 20 ㎏ /hl beer), other materials are: waste yeast, kieselgur, sewage treatment mud and other concretion. Zieman brought forward brewery zero discharge project which can recover their energy, via optimization and advance suspending dry technology, this burnt technology have reached to 500kwh level in 2010, if advance more, need not dry beforehand for residual material. So the heat energy and electricity energy utilization advantage will be more obvious.