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    CHEMISTRY FOR EFFECTIVE MICROBE CONTROL WITH REDUCED GAS PHASE CORROSIVENESS IN PULP&PAPER PROCESSING SYSTEMS
    1.
    发明公开
    CHEMISTRY FOR EFFECTIVE MICROBE CONTROL WITH REDUCED GAS PHASE CORROSIVENESS IN PULP&PAPER PROCESSING SYSTEMS 有权
    化学，确保病菌具有减少GASPHASENKORROSIVITÄT缠斗系统用于处理造纸

    公开(公告)号：EP2297046A1

    公开(公告)日：2011-03-23

    申请号：EP09751739.5

    申请日：2009-05-26

    申请人： Kemira OYJ

    发明人： NELSON, Mark ,  KOLARI, Marko ,  AHOLA, Juhana

    IPC分类号： C02F1/76

    CPC分类号： D21F1/66 ,  C02F1/50 ,  C02F1/76 ,  C02F2103/28 ,  C02F2303/08 ,  C02F2303/20

    摘要： Processes for biofilm or microorganism growth control in an aqueous system such as a pulp, paper or board manufacturing system are described in which a halogenated hydantoin is added to the aqueous system in combination with haloamine, chlorine dioxide or a combination thereof. The halogenated hydantoin is preferably a fully or partially halogenated dialkyl hydantoin, and more preferably 5,5-dimethyl hydantoin or 5-methyl-5-ethyl hydantoin. The haloamine is preferably a monohaloamine, dihaloamine, trihaloamine, or a combination thereof, and more preferably monochloramine, monobromamine, bromochloroamine or a combination thereof. The halogenated hydantoin is preferably added to the aqueous system in portions of the system susceptible to gas phase corrosion, such as the short loop of the system (200), and the haloamine and chlorine dioxide are preferably added to other portions of the system. The halogenated hydantoin and haloamine and/or chlorine dioxide maintain good compatibility with each other in the absence of excess free chlorine.

    METHOD FOR QUANTITATIVE MONITORING OF ENDOSPORES IN AQUEOUS ENVIRONMENT OF A PAPER OR BOARD MILL
    5.
    发明公开
    METHOD FOR QUANTITATIVE MONITORING OF ENDOSPORES IN AQUEOUS ENVIRONMENT OF A PAPER OR BOARD MILL 有权
    定量监测纸或纸板厂水环境中内生物质的方法

    公开(公告)号：EP3262187A1

    公开(公告)日：2018-01-03

    申请号：EP16710256.5

    申请日：2016-02-26

    申请人： KEMIRA OYJ

    发明人： RIIHINEN, Kalle ,  LAURAEUS, Marko ,  KOLARI, Marko ,  AHOLA, Juhana

    IPC分类号： C12Q1/68

    摘要： The invention relates to a method for quantitative monitoring of bacterial endospores in an aqueous environment of a paper or board mill. The method comprises at least the following steps: obtaining at least a first aqueous sample originating from the industrial aqueous environment; destroying bacteria in vegetative form in the first sample by a suitable treatment, preferably by heating the first sample to a desired temperature; adding intercalating agent (such as PMA) to the treated first sample and allowing it to interact (e.g. by cross-linking) with the destroyed bacteria, so that the nucleic acid from the destroyed bacteria are unavailable for PCR; and determining the endospore level in the first sample by using quantitative polymerase chain reaction (qPCR) in which only the DNA from the endospores is available for amplification.