发明名称 |
Method for reclaiming soil, sediment and sludge dredged from watercourses contaminated by heavy metals and by dangerous and toxic organic compounds |
摘要 |
A method for reclaiming soil, sediment and sludge dredged from watercourses contaminated by heavy metals and by dangerous and toxic organic compounds characterised in that the soil, sediment or sludge with a water content variable from 5% by weight to 60% by weight is subjected to the following steps:
- mixing and homogenizing at a temperature not exceeding 140°C for a time not exceeding two hours with cement binders in a quantity variable from 5% to 50% by weight of the soil, sediment or sludge, to obtain a flowable granular powder with an average diameter between 0,1 mm and 4 mm which is compacted mechanically into briquettes or pellets with a maximum volume of 500 cm 3 ,
- a first curing step for cement setting and dehydration of the briquettes for a maximum time of nine days to attain a residual moisture content less than 15%,
- a second curing step for a maximum time of twentyeight days. |
申请公布号 |
EP2087947(A3) |
申请公布日期 |
2013.01.16 |
申请号 |
EP20090152156 |
申请日期 |
2009.02.05 |
申请人 |
DEPURACQUE SVILUPPO S.R.L.;DEPURACQUE SERVIZI S.R.L. |
发明人 |
PIPPA, ROBERTO;TONOLO, GIORGIO;LEVORATO, NICOLA |
分类号 |
B09C1/08;B09B3/00;B09C1/02;B09C1/06;C02F11/00;C02F11/14;C04B18/02 |
主分类号 |
B09C1/08 |
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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