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A Study on EM Technique for Comprehensive Utilization of Alcohol Distillery Residues

Shuxian Guo1, Dongmei Wang1, Gang Xue1, Jin Zang1 and Tanenaru Yamada2

The Biological and Chemical Department, Nanyang Institute of Science & Technology,
80# Changjiang Road, Nanyang City, Henan Province 473004, PR China1.2




Abstract


Nanyang Alcohol Factory is by far the biggest used for food alcohol production by using the dried sweet potatoes in China, which produce 80,000 tons of alcohol each year. It produces more than 1 million tons of liquids of the alcohol distillery residue, which not only causes water pollution, but also wastes about 12% solid organic. Alcohol distillery residues, the broken straws and the mill offals in proportion of 10:3:1, were inoculated with EM1 liquid of dilution. After adequate stirring, injected it into the fermentative pool to anaerobically ferment. The optimum technological conditions were determined through the orthogonal experiment. The fermented product (EM alcohol distillery residues fermentative feed) is an active feed containing effective microorganisms, yellowish-brown in color and sweet-sour taste and mostly eliminate the original smell of the alcohol distillery residue. It contains 25.60% crude protein, which is 4.4 times the initial level. The amino acid is 22.80%, which is 4.6 times the initial and the crude fiber is dissolved too. The preliminary results of pig feeding showed good palatability, rapid growth, strong disease resistance and greatly reduced fecal stink. The technique has offered a new way to fully utilize the alcohol distillery residue for saving grains and to protect the environment.