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1. 发明公开

EP2157057A1 METHOD OF ANAEROBIC TREATMENT AND ANAEROBIC TREATMENT APPARATUS 有权
标题翻译： VERFAHREN ZUR ANAEROBEN BEHANDLUNG
公开(公告)号：EP2157057A1
公开(公告)日：2010-02-24
申请号：EP08722397.0
申请日：2008-03-18
申请人： Kurita Water Industries Ltd.
发明人： TOKUTOMI, Takaaki , YODA, Motoyuki
IPC分类号： C02F3/28 , C02F3/00 , C02F3/10 , C02F3/34
CPC分类号： C02F3/006 , C02F1/56 , C02F3/2846 , C02F2101/322 , C02F2103/28 , C02F2305/06 , Y10S210/928
摘要： The present invention makes it possible to prevent disintegration of granular sludge and perform high-load high-velocity anaerobic treatment stably even in the case where treatment is performed under conditions where the granular sludge is easily disintegrated. In a reaction tank 20 which retains the granular sludge, nitric acid or nitrous acid is adjusted so that they have a certain concentration range. For example, nitric acid is added to the liquid to be treated by connecting the nitric acid addition path 12 to a midway point of the path of the liquid to be treated 31 which introduces the liquid to be treated to the reaction tank 20, and nitric acid is mixed with the liquid to be treated. By introducing nitric acids within the reaction tank 20, denitrifying bacteria etc. can multiply, and disintegration of the granules is prevented.
摘要翻译：本发明即使在粒状污泥易于分解的条件下进行处理的情况下也能够稳定地防止粒状污泥的分解，进行高负荷的高速厌氧处理。在保留颗粒污泥的反应槽20中，调节硝酸或亚硝酸使其具有一定的浓度范围。例如，通过将硝酸添加路径12连接到待处理液体31的路径的中途点将待处理的液体加入到待处理的液体中，将待处理的液体引入反应罐20，并将硝酸酸与待处理的液体混合。通过在反应槽20内引入硝酸，可以使脱氮细菌等繁殖，防止颗粒的分解。

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