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1. 发明授权

US4211645A Foam flotation activated sludge process 失效
标题翻译：泡沫浮选活性污泥法
公开(公告)号：US4211645A
公开(公告)日：1980-07-08
申请号：US790852
申请日：1977-04-25
申请人： James E. Zajic , Martha A. Hill , Donald F. Manchester , Karel Muzika
发明人： James E. Zajic , Martha A. Hill , Donald F. Manchester , Karel Muzika
IPC分类号： C02F1/24 , C02F3/34 , C02C1/06 , C02C5/10
CPC分类号： C02F1/24 , C02F3/34 , Y10S435/911 , Y10S435/924
摘要： The specification discloses making a mixed fungal (yeast and yeast-like) system culture adapted to biodegradation of spent sulfite liquor (SSL) comprising the steps of exposing a mixed culture system (being a sludge from a sewage treatment plant) to increasing concentration of SSL until the fungus becomes acclimatized to SSL of the desired concentration. The resulting biotic population comprises a fungal mixture, of yeast and yeast-like cultures. It was based on an autolytic culture system: Phialophora jeanselmei, Phialophora richardsiae, Hyalodendron liqnicola, Trichosporon infestans and Candida tropicalis. A method and apparatus are disclosed for biodegrading both the soluble substrates in a spent sulfite liquor and the biological solids produced therefrom by a potentially autolytic culture system. The method comprises the steps of adding a nutrient medium, adjusting the pH to mildly acid or neutral condition, feeding the mixture to a fungal culture inoculated fermentor with agitation and with aeration, resulting in foaming of the mixture, said foam carrying with it the fungi and sludge resulting from the fermentation, the suspended solids content of the foam when collapsed being generally not more than half the suspended solids content of the fermentor broth, said foam being processed so as to separate the components into a sludge and a clarified effluent, said sludge being recycled to the fermentor vessel and the clarified effluent prepared for discharge or additional processing. Under optimum operating conditions as much as 85 to 90% BOD removal from spent sulfite liquor is accomplished.
摘要翻译：该说明书公开了制备适用于废亚硫酸盐（SSL）的生物降解的混合真菌（酵母和酵母样）系统培养物，其包括将混合培养系统（作为污水处理厂的污泥）暴露于增加浓度的SSL 直至真菌适应所需浓度的SSL为止。所得的生物种群包括酵母和酵母样培养物的真菌混合物。它是基于自溶文化系统：Phialophora jeanselmei，Phialophora richardsiae，Hyalodendron liqnicola，Trichosporon infestans和Candida tropicalis。公开了一种用于在废亚硫酸盐液体中生物降解可溶性底物和通过潜在的自溶解培养系统从其产生的生物固体的方法和装置。该方法包括以下步骤：添加营养培养基，将pH调节至轻度酸或中性条件，将混合物搅拌并通气加入到真菌培养接种发酵罐中，导致混合物发泡，所述泡沫携带真菌和由发酵产生的污泥，当塌陷时泡沫的悬浮固体含量通常不超过发酵罐肉汤的悬浮固体含量的一半，所述泡沫被处理以将组分分离成污泥和澄清的流出物，所述污泥被再循环到发酵罐中，澄清的废水被准备用于排放或附加处理。在最佳操作条件下，完成从废亚硫酸盐液中多达85至90％的BOD去除。

2. 发明授权

US4559305A Microbial culture system 失效
公开(公告)号：US4559305A
公开(公告)日：1985-12-17
申请号：US270013
申请日：1981-06-03
申请人： James E. Zajic , Martha A. Hill , Donald F. Manchester , Karel Muzika
发明人： James E. Zajic , Martha A. Hill , Donald F. Manchester , Karel Muzika
IPC分类号： C02F1/24 , C02F3/34 , C12N1/00
CPC分类号： C02F1/24 , C02F3/34 , Y10S435/911 , Y10S435/924
摘要： The specification discloses making a mixed fungal (yeast and yeast-like) system culture adapted to biodegradation of spent sulfite liquor (SSL) comprising the steps of exposing a mixed culture system (being a sludge from a sewage treatment plant) to increasing concentration of SSL until the fungus becomes acclimatized to SSL of the desired concentration. The resulting biotic population comprises a fungal mixture, of yeast and yeast-like cultures. It was based on an autolytic culture system: Phialophora jeanselmei, Phialophora richardsiae, Hyalodendron lignicola, Trichosporon infestans and Candida tropicalis. A method and apparatus are disclosed for biodegrading both the soluble substrates in a spent sulfite liquor and the biological solids produced therefrom by a potentially autolytic culture system. The method comprises the steps of adding a nutrient medium, adjusting the pH to mildly acid or neutral condition, feeding the mixture to a fungal culture inoculated fermentor with agitation and with aeration, resulting in foaming of the mixture, said foam carrying with it the fungi and sludge resulting from the fermentation, the suspended solids content of the foam when collapsed being generally not more than half the suspended solids content of the fermentor broth, said foam being processed so as to separate the components into a sludge and a clarified effluent, said sludge being recycled to the fermentor vessel and the clarified effluent prepared for discharge or additional processing. The recycling of sludge to the fermentor vessel is controlled where necessary to maintain the suspended solids in the fermentor vessel at not greater than 60,000 parts per million. The degree of recycling and retention time are held at a level at which autolysis of the suspended solids may be maintained. The process differs from other extended aeration processes in the high MLSS level in the reactor (.about.30,000-55,000 ppm); low sludge return rate (.about.43% of fresh feed rate); high BOD loading (1400 lb BOD/1000 cu. ft.); long mean cell residence time (up to 95 days). The system may be maintained at full sludge recycle thus obviating the need for an external sludge handling and disposal system. Under optimum operating conditions as much as 85 to 90% BOD removal from spent sulfite liquor is accomplished.

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