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1. 发明申请

WO2006039508A2 CONTINUOUS MULTISTAGE THERMOPHILIC AEROBIC AND AEROBIC-ANAEROBIC SLUDGE DIGESTION SYSTEMS 审中-公开
标题翻译：连续多级热液空气和厌氧消化污泥系统
公开(公告)号：WO2006039508A2
公开(公告)日：2006-04-13
申请号：PCT/US2005/035221
申请日：2005-09-30
申请人： MIXING AND MASS TRANSFER TECHNOLOGIES, LLC , MCWHIRTER, John, R. , BALAN, Prakash, G. , SWOPE, Bradley, A.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G. , SWOPE, Bradley, A.
IPC分类号： C02F11/02
CPC分类号： C02F11/02 , C02F3/121 , C02F3/30 , C02F11/04 , C02F2301/106 , Y02W10/15 , Y02W10/27
摘要： A continuous flow multistage aerobic wastewater sludge digestion system comprising at least two stages connected in series, each stage comprising one or more covered tanks, tank segments or compartments, each having an enclosed separate gas headspace, wherein the gas headspaces of each stage are connected in a specified sequence that may be identical to or different from the staging sequence followed by the sludge liquid. An oxygen containing gas stream, such as air or an oxygen enriched gas stream, is supplied to the headspace of each stage, and a means for aerating the sludge in one or more of the tanks, tank segments or compartments is provided to enhance the transfer of oxygen from the gas headspace into the sludge liquid for use by bacteria in digestion of the sludge. At least one stage of the sludge digestion system is operated at a thermophilic temperature above 50 °C and the flow of oxygen containing gas through the system can be cocurrent, countercurrent, or a mixture of both with respect to the flow of the liquid. Preferred embodiments of the invention include the use of this aerobic digestion system prior to anaerobic digestion.
摘要翻译：一种连续流动多级有氧废水污泥消解系统，包括至少两个串联连接的阶段，每个阶段包括一个或多个被覆盖的罐，罐段或隔室，每个具有封闭的分开的气体顶部空间，其中每个级的气体顶空连接可以与分级序列相同或不同的指定序列，随后是污泥液体。将含氧气流（例如空气或富氧气流）供应到每个级的顶部空间，并且提供用于使一个或多个罐，罐段或隔室中的污泥充气的装置，以增强转移的氧气从气体顶部进入污泥液体，供细菌消化污泥使用。污泥消化系统的至少一个阶段在高于50℃的高温温度下操作，并且通过该系统的含氧气体的流动可以是并流的，逆流的或两者相对于液体流的混合物。本发明的优选实施方案包括在厌氧消化之前使用该需氧消化系统。

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