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1.发明公开PROCESS AND PLANT FOR THE RECOVERY OF PHOSPHOROUS AND COAGULANTS FROM SLUDGE 审中-公开方法和系统背部和提取污泥磷素混凝剂
公开(公告)号：EP1404621A1
公开(公告)日：2004-04-07
申请号：EP02741586.8
申请日：2002-06-20
CPC分类号： B01J8/20 , A62D2203/10 , B01J3/008 , B01J2219/00006 , C01B25/01 , C02F1/001 , C02F1/5245 , C02F11/086 , C02F2101/105 , C02F2101/20 , Y02P20/544
摘要： A process for treatment of waste containing organic material, phosphorous and water in suitable amounts to be a pumpable sludge and in order to be oxidizable through supercritical water oxidation, comprises the steps of: putting the sludge into conditions being supercritical for water; adding oxidant, particularly, oxygen to the sludge, wherein the organic material contained in the waste is substantially completely oxidized by means of supercritical water oxidation; separating the phosphorous from water and from carbon dioxide formed during the oxidation; and recovering the phosphorous by means of dissolving the phosphorous in an alkali.
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公开(公告)号：EP1673307A1
公开(公告)日：2006-06-28
申请号：EP04775566.5
申请日：2004-10-18
申请人： Feralco AB
CPC分类号： B01D61/025 , B01D61/027 , B01D61/14 , C01F7/762 , C01F7/767 , C01G49/00 , C02F1/44 , C02F1/444 , C02F1/52 , C02F1/5245 , C02F1/66 , C02F9/00 , C02F11/00 , C02F2101/20 , C02F2101/203 , C02F2103/28
摘要： 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.
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3.发明公开ALUMINIUM SULPHATE COMPOSITIONS CONTAINING POLYNUCLEAR COMPLEXES AND A METHOD OF PRODUCING THE SAME AND THE USE THEREOF 审中-公开多核配合物的三氯化铝组合物和方法进行生产和用途
公开(公告)号：EP1519897A1
公开(公告)日：2005-04-06
申请号：EP03762949.0
申请日：2003-07-01
申请人： Feralco AB
发明人： JÄFVERSTRÖM, Stefan
CPC分类号： D21H17/66 , C01F7/767 , C01P2006/60 , C02F1/5236 , C02F11/14 , C09C1/40
摘要： The present invention relates to a metal sulphate composition comprising a polynucleate metal sulphate having the general formulae [Me(OH)x(SO4)y(H2O)z]n where Me is three valence metal ion of the group aluminium and iron n is an integer x is 1.0 - 2.8; y is 0.1 - 1.0; x+2y is 3 and z is 1.5-4, z being 4 when the product is in solution whereby it has a content of Mg2+, its pH is at least 3.3 and at most 5.0 in liquid form, it has a basicity of at most 2.8, and it contains highly charged cationic polyaluminium complexes, as well as a method for its manufacture, and its use.
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