发明名称 |
Method for producing a compostable mixture of sludge from sewage purification plants |
摘要 |
The invention relates to a method for producing a product from which compost can be suitably produced and which contains sludge obtained from a sewage purification process, in which method the sludge is mixed in a fluid state with a finely-divided carbon-carrier selected from the group sawdust, peat and bark, and with polyelectrolyte, and is then mechanically dewatered to a dry substance content of at least about 28 percent by weight.
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申请公布号 |
US4659472(A) |
申请公布日期 |
1987.04.21 |
申请号 |
US19840686910 |
申请日期 |
1984.12.27 |
申请人 |
PURAC AB |
发明人 |
NORDLUND, TORE H.;LJUNGKVIST, LARS E. |
分类号 |
C05F7/00;(IPC1-7):C02F11/14 |
主分类号 |
C05F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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