发明授权
US6123747A Apparatus and method for manufacturing barnyard manure using sewage and sludge 有权
使用污水和污泥制造稗粪的设备和方法

Apparatus and method for manufacturing barnyard manure using sewage and
sludge
摘要:
An apparatus and method for manufacturing barnyard manure using sewage and night-soil sludge for use in farmlands and flower gardens so as to prevent secondary contamination of the environment quickly, at a low cost, and with high efficiency.
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