| 发明名称 |
METHOD FOR TREATMENT OF SLUDGE |
| 摘要 |
<p>Method for treatment of sludge, which includes precipitated aluminium and/or iron hydroxide, whereby the sludge first is added acid and thereafter is subjected to at least one membrane filtration process, whereby a permeate or a concentrate is obtained, including trivalent aluminium and/or iron ions in solution. The aluminium and/or iron ions in the permeate, or concentrate, are crystallised (salting out) in a precipitation.</p> |
| 申请公布号 |
WO2005037714(A1) |
申请公布日期 |
2005.04.28 |
| 申请号 |
WO2004SE01497 |
申请日期 |
2004.10.18 |
| 申请人 |
FERALCO AB;ULMERT, HANS, DAVID;JAEFVERSTROEM, STEFAN;STENDAHL, KJELL |
发明人 |
ULMERT, HANS, DAVID;JAEFVERSTROEM, STEFAN;STENDAHL, KJELL |
| 分类号 |
C01G49/00;B01D61/02;B01D61/14;C01F7/76;C02F1/44;C02F1/52;C02F1/66;C02F9/00;C02F11/00;(IPC1-7):C01F7/74;B01D61/00;C01G49/14 |
主分类号 |
C01G49/00 |
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