The invention relates to a method and system for treating an aqueous stream having a first flow rate and containing solid matter exhibiting first settling properties,the method comprising adding a modifying agent to the aqueous stream at an addition rate sufficient to change the first settling properties of the aqueous stream to obtain a modified aqueous stream having solid matter exhibiting second settling properties different from the first settling properties; taking batchwise samples of the modified aqueous stream to a settling vessel having a volume;determining a settling property of the solid matter of the samples in the settling vessel; and conducting the modified aqueous stream to a separation unit in which solid matter is separated from the modified aqueous stream. The invention provides a convenient way of monitoring and/or controlling aqueous streams conducted for example to purification processes.
申请公布号
WO2012010744(A1)
申请公布日期
2012.01.26
申请号
WO2011FI50666
申请日期
2011.07.19
申请人
KEMIRA OYJ;JANSSON, KAJ;JOENSUU, IIRIS;PIIRONEN, MARJATTA;SIRVIOE, JUKKA-PEKKA;YRJAENAEINEN, TAPIO
发明人
JANSSON, KAJ;JOENSUU, IIRIS;PIIRONEN, MARJATTA;SIRVIOE, JUKKA-PEKKA;YRJAENAEINEN, TAPIO