发明名称 |
Menetelmä fosforin vähentämiseksi jätevesissä ja prosessivesissä |
摘要 |
Method for reducing phosphorus in effluents and process waters in a pulp mill or a paper mill comprises: - adjusting the pH of the water to be treated with an alkaline agent (A), - supplying carbonate ions to the water, - precipitating calcium carbonate from the water to be treated by the effect of carbonate ions supplied to the water, - coprecipitating phosphorus together with the precipitated calcium carbonate, and - separating the coprecipitated phosphorus from the effluent or process water together with the precipitated calcium carbonate. |
申请公布号 |
FI125025(B) |
申请公布日期 |
2015.04.30 |
申请号 |
FI20130005722 |
申请日期 |
2013.07.01 |
申请人 |
UPM-KYMMENE CORPORATION |
发明人 |
RISTOLAINEN, MATTI;SOLISMAA, PÄIVI;VARTIA, TUIJA |
分类号 |
D21C11/00;C02F1/58;C02F9/00;C02F103/28;C05F7/02 |
主分类号 |
D21C11/00 |
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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