公开(公告)号：EP2764931A1

公开(公告)日：2014-08-13

申请号：EP12838555.6

申请日：2012-10-04

申请人： Iga Bio Research Co., Ltd. ,  Kuraray Co., Ltd.

发明人： SAKAI, Takuo ,  HASHIMOTO, Tamotsu ,  YOSHIHARA, Mototsugu

IPC分类号： B09B3/00 ,  C05F1/00 ,  C05F3/00 ,  C05F5/00 ,  C05F9/00 ,  C05G5/00 ,  C12M1/00 ,  C12N1/00 ,  C12N1/20 ,  C12N11/08

CPC分类号： B09B3/00 ,  C05F17/0036 ,  C05F17/0045 ,  C05F17/02 ,  C12M25/16 ,  C12M27/06 ,  C12N11/08 ,  Y02P20/145 ,  Y02W30/43

摘要： A method for decomposing a biological material by microorganisms supported on a carrier, characterized in that the carrier is an aqueous polyvinyl alcohol carrier and 20 to 500 parts by weight of the biological material and 5 to 70 parts by weight of water based on 100 parts by weight of the aqueous polyvinyl alcohol carrier are mixed and agitated in a reaction vessel. The method enables the efficient decomposition of a biomass. The method also enables the efficient production of a liquid fertilizer comprising an aqueous solution containing a decomposition product of a biomass.

摘要翻译： 一种用于通过支撑在载体上的微生物分解生物材料的方法，其特征在于，所述载体是聚乙烯醇水溶性载体，20至500重量份的生物材料和5至70重量份的水，基于100份 聚乙烯醇水溶液载体的重量在反应容器中混合并搅拌。 该方法能够有效地分解生物质。 该方法还能够有效地生产包含含有生物质分解产物的水溶液的液体肥料。

公开(公告)号：EP3816118A1

公开(公告)日：2021-05-05

申请号：EP19825693.5

申请日：2019-06-28

申请人： Kuraray Co., Ltd.

发明人： HIRAI, Yusuke ,  HAYASHI, Yoshiyuki ,  OSAWA, Takuya ,  UKAI, Yu ,  YOSHIHARA, Mototsugu

IPC分类号： C02F3/10 ,  C02F3/34

摘要： There is provided a method for treating water comprising passing water to be treated containing organic matters and ammonia nitrogen through a reaction tank containing a carrier for treatment under aerobic conditions, wherein a water content of the carrier is 50 % or more and 96 % or less; the carrier has continuous pores with a pore size of 30 µm or less; an organic matter concentration in the water to be treated is 100 mg/L or less as a BODs, and an ammonia nitrogen concentration is 50 mg/L or less; a retention time of the water to be treated in the reaction tank is 2 hours or less; and the organic matters and the ammonia nitrogen in the water to be treated are treated in the same tank. Thus, excellent treated water with stable treating performance can be obtained when conducting biological treatment of water to be treated containing organic matters and ammonia, even with a low concentration of organic suspended solids in water to be treated.

公开(公告)号：EP3778501A1

公开(公告)日：2021-02-17

申请号：EP19784941.7

申请日：2019-04-12

申请人： Kuraray Co., Ltd.

发明人： YOSHIHARA, Mototsugu ,  UCHINAGA, Kensuke ,  UKAI, Yu ,  OKABE, Hidehiko

IPC分类号： C02F3/34 ,  C02F3/10 ,  C02F3/12

摘要： There is provided a process for treating wastewater comprising: Step 1 of feeding organic wastewater to a first aerobic tank and an anoxic tank; Step 2 of nitrifying and denitrifying the organic wastewater by bacteria supported on carriers in the first aerobic tank followed by discharging primary treated water; Step 3 of denitrifying the organic wastewater and the primary treated water by bacteria in an activated sludge in the anoxic tank followed by discharging secondary treated water; Step 4 of nitrifying the secondary treated water by bacteria in an activated sludge in the second aerobic tank followed by discharging tertiary treated water; and Step 5 of separating the sludge from the tertiary treated water in the solid-liquid separator followed by discharging final treated water while returning the sludge to the anoxic tank. According to this process, a load in a latter anoxic tank can be reduced, the anoxic tank can be downsized compared with the prior process and treated water with good water quality can be stably provided.

公开(公告)号：EP2799474A1

公开(公告)日：2014-11-05

申请号：EP12861710.7

申请日：2012-12-26

申请人： Kuraray Co., Ltd.

发明人： OKA, Tatsuya ,  ISHIODORI, Arata ,  YOSHIHARA, Mototsugu

IPC分类号： C08J9/26 ,  C02F3/10

CPC分类号： C08J9/28 ,  C02F3/104 ,  C02F3/108 ,  C02F3/109 ,  C08J3/075 ,  C08J2201/026 ,  C08J2201/0504 ,  C08J2205/022 ,  C08J2205/044 ,  C08J2329/04 ,  C08J2405/04 ,  C08K3/20 ,  Y02W10/15 ,  Y10T428/2982

摘要： There is provided a shaped article made of porous hydrogel that contains a polyvinyl alcohol acetalized with a dialdehyde, wherein the shaped article after freeze-drying has a pore size of 0.1 to 50 µ m. Preferably, the shaped article made of porous hydrogel further contains a water-soluble polysaccharide. Also preferably, an acetalization degree of the polyvinyl alcohol is 1 to 50 mol%. Also preferably, the shaped article made of porous hydrogel is in the form of particles with a sphere-equivalent diameter of 1 to 20 mm. Such a shaped article made of porous hydrogel exhibits high strength and good survivability of microorganisms.

摘要翻译： 设有由多孔水凝胶成型制品确实包含与二醛缩醛化的聚乙烯醇，worin冷冻干燥后的成型制品具有0.1至50μ微米的孔尺寸。 优选地，由另外的多孔水凝胶的成形制品含有一种水溶性多糖。 所以优选在聚乙烯醇的缩醛化度为1至50摩尔％。 这样制成的多孔水凝胶的成形制品与1至优选为20毫米的球当量直径的颗粒的形式。 由多孔的水凝胶的这些成形制品显示出高的强度和微生物的良好的生存能力。