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101. 发明专利

JPH0679294A SEWAGE TREATMENT UNIT 失效
公开(公告)号：JPH0679294A
公开(公告)日：1994-03-22
申请号：JP23596992
申请日：1992-09-03
申请人： KURITA WATER IND LTD
发明人： ISHIKA TOSHIKATSU , FUKASE TETSURO , NAGAI SATORU , YOSHIMURA FUMITAKA
IPC分类号： C02F3/12
摘要： PURPOSE:To shorten a low BOD state to suppress propagation of filamentous fungus and consequently to obtain a sewage treating device capable of stably preventing filamentous bulking by efficiently absorbing BOD in the raw water in the sludge and oxidizing the BOD by aeration. CONSTITUTION:This sewage treatment unit consists of a plug-flow BOD absorption tank 1 in which raw water 2 is passed as a plug flow and brought into contact with the return sludge pipe 3 into which the sludge is dispensed to absorb the BOD in the raw water in the sludge, an aeration tank 5 in which a liq. mixture 4 introduced from the absorption tank 1 is aerated to aerobically oxidize and decompose BOD, a solid-liq. separation tank 9 for the aerated liq. 8 of the tank 5 and a sludge return device 12 for dispensing a part of the sludge separated in the tank 9 to the tank 1 as the return sludge pipe 3 in the plug flow direction.

102. 发明专利

JPH0671292A DENITRATION DEVICE 失效
公开(公告)号：JPH0671292A
公开(公告)日：1994-03-15
申请号：JP23178992
申请日：1992-08-31
申请人： KURITA WATER IND LTD
发明人： ODA NOBUHIRO , FUKASE TETSURO
IPC分类号： C02F1/42 , C02F3/34 , C02F9/00
摘要： PURPOSE:To easily and efficiently remove nitrate ions and/or nitrite ions from raw water by a simple device and to obtain the treated water having high quality of water by providing arm inflow port for raw water and an outflow port for treated water at a treated room partitioned with a membrane and providing an inflow port for hydrogen imparting body and an outflow port at a denitration room. CONSTITUTION:In order to treat the raw water in the denitration device, the raw water in a raw water tank 11 is introduced into the treating room 6 via a piping 12 and also an aqueous hydrogen imparting body solution in a storage tank 13 is introduced into the denitration room 7 by a piping 14. Hence the nitrate ions in the raw water is taken in an anion exchange membrane 3 together with other ions and besides move to the denitration room 7 side. The moved nitrate ions are reacted with denitration fungi and the hydrogen imparting body such as methanol, and discharged as gaseous nitrogen outside the system. Like this, the treated water removed the nitrate ions is discharged outside the system via a discharge pipe 2B and a piping 15, and the waste liquid consumed the hydrogen imparting body by the denitrogen reaction, is.

103. 发明专利

JPH0347079A THERMOSTABLE LIPASE GENE, VECTOR HAVING THE SAME GENE AND PRODUCTION OF THERMOSTABLE LIPASE 失效
公开(公告)号：JPH0347079A
公开(公告)日：1991-02-28
申请号：JP18230189
申请日：1989-07-14
申请人： KURITA WATER IND LTD
发明人： IIIZUMI TARO , NAKAMURA KOICHI , FUKASE TETSURO
IPC分类号： C12N15/09 , C12N9/20 , C12N15/55 , C12R1/19 , C12R1/38
摘要： PURPOSE:To efficiently produce a thermostable lipase by introducing a gene capable of coding the thermostable lipase into a vector DNA, transforming a host cell with the resultant recombinant vector and culturing the obtained transformant. CONSTITUTION:A chromosomic DNA, containing a thermostable lipase gene and obtained from a microorganism Pseudomonas KWI-56 strain (FERM P-9659) capable of producing the thermostable lipase is isolated. The resultant chromosomic DNA and vector DNA are cleaved with a restriction enzyme and both are then mixed and treated with a DNA ligase to prepare a recombinant vector, which is used to transform Escherichia coli, Bacillus subtilis, etc. the obtained transformant is subsequently cultured under the optimum conditions for producing the enzyme. The thermostable lipase is then recovered from the resultant culture supernatant or crushed microbial cells.

104. 发明专利

JPH024360B2 失效
公开(公告)号：JPH024360B2
公开(公告)日：1990-01-26
申请号：JP23089582
申请日：1982-12-29
申请人： KURITA WATER IND LTD
发明人： JOKO ISAO , YOSHIKI JUNICHI , SAWADA SHIGEKI , FUKASE TETSURO , SHIBATA MASAHIDE
IPC分类号： C02F1/28 , C02F1/58 , C02F3/30

105. 发明专利

JPH01112979A PSEUDOMONAS KWI-56 STRAIN 失效
公开(公告)号：JPH01112979A
公开(公告)日：1989-05-01
申请号：JP26998587
申请日：1987-10-26
申请人： KURITA WATER IND LTD
发明人： IIIZUMI TARO , NAKAMURA KOICHI , FUKASE TETSURO
IPC分类号： C12N9/20 , C12N1/20 , C12R1/38
摘要： NEW MATERIAL:Pseudomonas KWI-56 strain (FERM P-No. 9659), belonging to the genus Pseudomonas and having the ability to produce a thermostable lipase. USE:A microorganism capable of producing a thermostable lipase having 70-80 deg.C optimum reaction temperature and inductively producing the lipase only when oils and fats are present in a culture medium. PREPARATION:The aimed microorganism is separated from soil in ATSUGI City in KANAGAWA Prefecture in Japan.

106. 发明专利

JPS62289177A PRODUCTION OF AMYLASE 失效
公开(公告)号：JPS62289177A
公开(公告)日：1987-12-16
申请号：JP13267986
申请日：1986-06-10
申请人： KIKKOMAN CORP , KURITA WATER IND LTD
发明人： FUKUSHIMA YAICHI , MOTAI HIROSHI , ITO HARUMICHI , FUKASE TETSURO
IPC分类号： C12N9/26 , C12N1/14 , C12N9/30
摘要： PURPOSE:To produce an amylase having high titer in high efficiency by the culture of amylase-producing mold in a liquid medium, by adding a liquid medium containing starchy raw material to the system in a manner that the sugar concentration in the culture liquid is lowered below a specific level at or after the last stage of growth. CONSTITUTION:An amylase-producing mold is cultured in a liquid medium to obtain amylase. In the above process, a liquid medium containing a starchy raw material is continuously or intermittently added to the system in a manner that the concentration of sugar in the culture liquid becomes

107. 发明专利

JP2002177991A METHOD OF PREVENTING GENERATION OF ODOR 失效
公开(公告)号：JP2002177991A
公开(公告)日：2002-06-25
申请号：JP2000374214
申请日：2000-12-08
申请人： KURITA WATER IND LTD
发明人： OI YASUHIRO , MUGIBAYASHI YASUHIRO , FUKASE TETSURO
IPC分类号： C02F11/00
摘要： PROBLEM TO BE SOLVED: To provide a method of preventing generation of odors which is capable of effectively preventing malodors, such as hydrogen sulfide and methyl mercaptan, generated in respective processes from the generation of sludge slurries in sewer treatment plants, etc., (sludge thickener outlet), to sewage storage tanks, sludge hydroextractors and dewatering cake conveyance and storage facilities and the electric facility corrosion by the hydrogen sulfide and the apparatus corrosion by the sulfuric acid generated by the biological oxidation of the hydrogen sulfide. SOLUTION: The method of preventing the generation of the odors from the sludge by adding nitrite to the sludge in the sludge storage tank comprises changing the amount of the nitrite to be added so as to concentrically add the nitrite at frequencies of several times a day in the addition of the nitrite and maintaining the concentration of the residual nitrite ions of the sludge in the sludge storage tank after lapse of one hour from the end of each concentric addition at >=20 mg/l.

108. 发明专利

JP2002018471A METHOD FOR TREATING ORGANIC WASTELIQUID 失效
公开(公告)号：JP2002018471A
公开(公告)日：2002-01-22
申请号：JP2000208229
申请日：2000-07-05
申请人： JAPAN SEWAGE WORKS AGENCY , KURITA WATER IND LTD
发明人： SAKAI YOSHIO , WAKAYAMA MASANORI , MIYAKE HARUO , OYAMA AKIO , SHIBATA MASAHIDE , FUKASE TETSURO
IPC分类号： C02F3/12 , C02F11/00
摘要： PROBLEM TO BE SOLVED: To obtain a method for treating organic wastewater wherein an amount of a medicine and/or an energy to be used in modification of sludge for reducing a volume of the sludge can be modified by making neither too much nor too less a necessary minimum amount, the sludge can be efficiently reduced in a volume to prevent environmental pollution, and treating equipment can be miniaturized. SOLUTION: Organic wastewater 4 is introduced into an aeration tank 2 of an aerobe treating system 1, aerobically, treated and separated into a solid and a liquid by a solid and liquid separator 3. The separated sludge or extracted sludge 24 extracted from mixed solution is introduced into an ozone treating tank 22 and the like of a modification treating system 21, modification treatment of ozone treatment and the like are carried out, and the product is returned to the aeration tank. In that case, a concentration of the sludge in the extracted sludge 24 is measured, and the sludge-extracted amount or the amount of another medicine and/or energy are controlled so that the amount of the medicine and/or energy per the dried amount of the sludge become constant.

109. 发明专利

JP2001314874A APPARATUS AND METHOD FOR TREATING PHOSPHORUS- CONTAINING WATER 失效
公开(公告)号：JP2001314874A
公开(公告)日：2001-11-13
申请号：JP2000136786
申请日：2000-05-10
申请人： KURITA WATER IND LTD
发明人： SUMITA ICHIRO , FUKASE TETSURO
IPC分类号： C02F1/58 , C02F5/00 , C02F5/06
摘要： PROBLEM TO BE SOLVED: To prevent the outflow of fine calcium phosphate particles from a calcium phosphate crystallization reaction column and the formation of scale in the column, in an apparatus and method for treating phosphorus-containing water by removing and recovering phosphate groups in phosphorus-containing water as calcium phosphate. SOLUTION: In the phosphorus-containing water treatment apparatus equipped with a mixing tank for mixing phosphate group-containing water, a water soluble calcium compound and a pH controller and a crystallization reaction column having the introducing port of the outflow liquid of the mixing tank disposed at the lower part thereof and having a treated water outflow port disposed at the upper part thereof and housing seed crystals, a seed crystal return means for returning seed crystals in the crystallization reaction column to the mixing tank is provided. In the phosphorus-containing water treatment method, phosphate group-containing water, the water soluble calcium compound and the pH controller are mixed in the presence of seed crystals in the mixing tank to be introduced into the lower part of the crystallization reaction column and treated water is allowed to flow out of the upper part of the reaction column and the seed crystals in the crystallization reaction column are returned to the mixing tank.

110. 发明专利

JP2001198591A BULKING INHIBITOR FOR ACTIVATED SLUDGE AND BULKING INHIBITION METHOD 失效
公开(公告)号：JP2001198591A
公开(公告)日：2001-07-24
申请号：JP2000010839
申请日：2000-01-19
申请人： KURITA WATER IND LTD
发明人： MIYAHARA KENICHI , FUKASE TETSURO
IPC分类号： C02F3/12
摘要： PROBLEM TO BE SOLVED: To stably and economically inhibit the bulking of the sludge generated in the settling tank (basin) used in the activated-sludge process. SOLUTION: At least the cement composition component is incorporated as the bulking inhibitor of activated sludge. The inhibitor is allowed to act as the weight increasing agent of the cement composition component based on the fundamental characteristic that the true specific gravity of the component consisting essentially of the calcium salt such as calcium silicate and calcium aluminate is large enough to improve the setting property of sludge, and further the bulking is inhibited immediately and continuously by utilizing the time lag in the supply of plural kinds of calcium salts different in hydration reaction rate.

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