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1. 发明专利

JP2012200691A Method and system for methane fermentation of sludge using hydrothermal reaction 审中-公开
标题翻译：使用水热反应进行泥沙发酵的方法和系统
公开(公告)号：JP2012200691A
公开(公告)日：2012-10-22
申请号：JP2011069046
申请日：2011-03-27
申请人： Kajima Corp , Mitsubishi Nagasaki Mach Co Ltd , 三菱長崎機工株式会社 , 鹿島建設株式会社
发明人： TATARA MASAHIRO , KIKUCHI SHIGERU , MAEDA HITOSHI , OKABE MOTONOBU , SHINOHARA NOBUYUKI
IPC分类号： C02F11/04 , C02F11/08
CPC分类号： C02F11/18 , C02F11/04 , C02F11/12 , C02F2209/03 , C02F2209/40 , C02F2209/42 , Y02E50/343 , Y02W10/37
摘要： PROBLEM TO BE SOLVED: To provide a methane fermentation method and system that can increase the amount of methane gas recovered from sludge pretreated by hydrothermal reaction.SOLUTION: After sludge S is concentrated to a predetermined moisture content by a concentration device 4, the concentrated sludge S is circulated between a hydrothermal reactor 11 and a gas-liquid separator 12 for a predetermined time to reduce the molecular weight thereof while heating the sludge to a hydrothermal reaction temperature T maximizing the amount of recovered methane gas per unit amount of the sludge resulting from methane fermentation, and the sludge S having being reduced in the molecular weight is held in a methane fermentation tank 20 for a predetermined time to recover methane gas G. Preferably, the hydrothermal reaction temperature T is a temperature in a range of 160-200°C, maximizing the amount of recovered methane gas per unit amount of the sludge resulting from methane fermentation, and the sludge S having being reduced in the molecular weight is held for 3-5 days in the methane fermentation tank 20 to recover the methane gas G.
摘要翻译：要解决的问题：提供可以增加由通过水热反应预处理的污泥回收的甲烷气体的量的甲烷发酵方法和系统。解决方案：通过浓缩装置4将污泥S浓缩至预定的水分含量后，浓缩污泥S在水热反应器11和气 - 液分离器12之间循环预定时间以降低其分子量，同时将污泥加热到水热反应温度T，使由甲烷发酵产生的每单位量的污泥中回收的甲烷气体的量最大化，将分子量降低的污泥S保持在甲烷发酵罐20中达预定时间以回收甲烷气G.优选地，水热反应温度T为160-200℃范围内的温度，使甲烷发酵产生的每单位量的污泥中回收的甲烷气体量最大化，并且污泥S已经降低分子量在甲烷发酵罐20中保持3-5天以回收甲烷气。版权所有（C）2013，JPO＆INPI Ť

2. 发明专利

JP2010142735A Methane fermentation method and system for organic solid waste 有权
标题翻译：有机固体废物甲烷发酵方法及系统
公开(公告)号：JP2010142735A
公开(公告)日：2010-07-01
申请号：JP2008322963
申请日：2008-12-18
申请人： Kajima Corp , Kyowa Exeo Corp , 株式会社協和エクシオ , 鹿島建設株式会社
发明人： MIYANO HIROSHI , TATARA MASAHIRO , KURAMOCHI KAZUHIRO , SHIBUYA TSUTOMU , TAKEMURA KENICHI , MAEDA HITOSHI , OKABE MOTONOBU , MURAYAMA HIROSHI , SUZUKI MASAHIRO , UEJIMA YASUHIRO , HAYASHI TAKUYA , ENDO TAKASHI , HOSHI KAZUAKI
IPC分类号： B09B3/00 , C02F11/04
CPC分类号： Y02E50/343
摘要： PROBLEM TO BE SOLVED: To provide methane fermentation method and system for organic solid waste which can stably maintain efficient methane fermentation even if scale up is caused.
SOLUTION: Organic solid waste C is anaerobically stored in a raw material tank 10, a decomposing microorganism-containing fermented solution S of waste is stored in an anaerobic fermentation tank 30 communicating with the raw material tank and vapor phase parts, the fermented solution in the fermentation tank is continuously fed to the raw material tank, the waste is immersed therein, the mixed solution of the waste in the raw material tank and the fermented solution, C+S is continuously extracted into a solid-liquid separation device 20 so as to be separated into a solid content E and a filtrate D, also, the separated filtrate is fed to the fermentation tank, further, the solid content is returned to the raw material tank, the waste in the raw material tank is decomposed while being immersed into the fermented solution circulating among the raw material tank, the solid-liquid separation device and the fermentation tank, and decomposed product gas G is recovered from the vapor phase parts of both the tanks 30, 10. Preferably, the feed amount of the fermented solution or the extraction amount of the mixed solution is adjusted in accordance with the separation amount of the filtrate in the separation device.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供有机固体废物的甲烷发酵方法和系统，即使产生放大，也可以稳定地保持有效的甲烷发酵。解决方案：将有机固体废物C厌氧地储存在原料罐10中，将含有分解微生物的发酵液S的废物储存在与原料罐和气相部分连通的厌氧发酵罐30中，发酵的将发酵罐中的溶液连续地供给到原料槽，将废弃物浸入其中，将原料槽中的废物和发酵液C + S的混合溶液连续地提取到固液分离装置20 为了分离成固体成分E和滤液D，也将分离的滤液送入发酵槽，此外，固体成分返回到原料槽，原料槽中的废物分解，同时浸渍在原料槽，固液分离装置和发酵罐中循环的发酵液中，从气相中回收分解产物气体G 两个罐30,10的部分。优选根据分离装置中的滤液的分离量调节发酵液的进料量或混合溶液的提取量。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2012086157A Fermentation liquid circulating methane fermentation method and apparatus 有权
标题翻译：发酵液循环甲烷发酵方法及装置
公开(公告)号：JP2012086157A
公开(公告)日：2012-05-10
申请号：JP2010235139
申请日：2010-10-20
申请人： Kajima Corp , Kyowa Exeo Corp , 株式会社協和エクシオ , 鹿島建設株式会社
发明人： TATARA MASAHIRO , MIYANO HIROSHI , KIKUCHI SHIGERU , MAEDA HITOSHI , OKABE MOTONOBU , MURAYAMA HIROSHI , ENDO TAKASHI , HOSHI KAZUAKI
IPC分类号： B09B3/00 , C02F1/40 , C02F11/04
CPC分类号： Y02E50/343
摘要： PROBLEM TO BE SOLVED: To provide a method for stably keeping high efficient methane fermentation treatment for a long period of time.SOLUTION: Organic solid waste C containing lightweight foreign matter M is supplied into an anaerobic raw material tank 10 provided with a movable rake 60 and a screw conveyer 70 penetrating a peripheral wall at predetermined heights on the inside. The liquid level is kept at a predetermined height by feeding a fermentation solution S to the raw material tank 10, drawing out the fermentation solution S from a lower part and returning it to an upper side. The waste C supplied into the raw material tank 10 is dipped in the fermentation solution S for solubilization and circulated with the fermentation solution S and decomposed into biogas G. The lightweight foreign matter M floating on the surface of the liquid of the raw material tank 10 is collected to the screw conveyer 70 by the movement of the rake 60 and discharged. Preferably, the fermentation solution S stored in a fermentation tank 30 is continuously fed to the raw material tank 10, the fermentation solution S of the raw material tank 10 is continuously drawn out to be separated into solid and liquid. The separated filtrate D is transferred to the fermentation tank 30, and the solid content E is returned to the raw material tank 10 for circulation.
摘要翻译：要解决的问题：提供一种用于长时间稳定地保持高效甲烷发酵处理的方法。解决方案：将含有轻质异物M的有机固体废物C供应到厌氧原料槽10中，该厌氧原料罐10设有可移动的耙条60和螺旋输送器70，该螺旋输送机70在内部以预定高度穿过周壁。通过将原料罐10送入发酵液S，从下部取出发酵液S并将其返回到上侧，将液面保持在规定的高度。供给到原料槽10中的废物C被浸渍在发酵液S中，用于溶解，并与发酵液S一起循环，并分解成沼气G.漂浮在原料槽10的液体表面上的轻质异物M 通过耙子60的运动被收集到螺旋输送器70并排出。优选地，将存储在发酵罐30中的发酵液S连续地供给到原料罐10，将原料槽10的发酵液S连续抽出，分离成固体和液体。将分离的滤液D转移到发酵罐30中，固体成分E返回原料槽10进行循环。版权所有（C）2012，JPO＆INPIT

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