METHOD AND SYSTEM FOR TREATING AQUEOUS STREAMS

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United States of America Patent

APP PUB NO 20130153510A1
SERIAL NO

13810839

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
KEMIRA OYJ00180 HELSINKI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jansson, Kaj Tampere, FI 12 45
Joensuu, Iiris Espoo, FI 26 45
Piironen, Marjatta Oulu, FI 21 33
Sirviö, Jukka-Pekka Espoo, FI 2 10
Yrjänäinen, Tapio Petsmo, FI 1 4

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