Patents Assigned to Hitachi Plant Engineering & Construction Co.
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Patent number: 7729932Abstract: A computer readable storage medium encoded with a project assessment program for assessing a project including a plurality of processes when executed by a computer computing forecasts of the project based on a set of information. At least one scheme by a user input is selected from a group of schemes including an estimation of mutual-correlation of estimated value pattern. Process planning information, up-to-date actual process information and forecast model information of each process included in the project is retrieved. The forecast model information of each process of the project is defined as probability distribution variations of a plurality of parameters of the processes, wherein the probability distribution variations are quantitative values of the project. Estimated values of variations in at least two parameters of the processes using the process planning information, the up-to-date actual process information and the forecast model information are computed.Type: GrantFiled: October 14, 2003Date of Patent: June 1, 2010Assignees: Hitachi, Ltd., Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Takeshi Yokota, Hisanori Nonaka, Kenji Araki, Youichi Nishikawa, Makoto Kudoh
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Patent number: 7676925Abstract: An interference with existing structures is prevented at a time of a lifting construction of a boiler module. When the boiler module is lifted from the ground by lifting jacks provided on a steel frame main-beam and made an install construction to the main-beam, lifting jacks enabled to move laterally on the main-beam are disposed at forward and backward thereof to suspend the boiler module. The suspended module is lifted up to the main-beam and installed while changing a suspending position between an interference preventing position with existing modules and a prescribed suspending position by alternately moving the forward and backward lifting jacks laterally.Type: GrantFiled: December 5, 2005Date of Patent: March 16, 2010Assignee: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Shigeyoshi Kawaguchi, Kazuhito Nakamitsu, Yuuichi Hayashi
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Publication number: 20090008308Abstract: The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.Type: ApplicationFiled: August 27, 2008Publication date: January 8, 2009Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Publication number: 20090008313Abstract: The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.Type: ApplicationFiled: August 27, 2008Publication date: January 8, 2009Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Publication number: 20080164196Abstract: The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.Type: ApplicationFiled: March 7, 2008Publication date: July 10, 2008Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Publication number: 20080164187Abstract: The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.Type: ApplicationFiled: March 7, 2008Publication date: July 10, 2008Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Patent number: 7314345Abstract: When a conventional semiconductor container opening/closing apparatus opens a lid of a semiconductor container, foreign particles enter into the container from outside through a gap between the container and a wall surface of the container opening/closing apparatus and adhere to a wafer in the container. An apparatus is provided to reduce the number of foreign particles adhering to the wafer by preventing foreign particles from entering into the container at the time of opening the container by the opening/closing apparatus. To achieve this, a velocity-differential pressure ratio obtained by dividing the maximum velocity at the time of opening the lid of the container in a vertical direction to an opening of the container, by the differential pressure between the inside pressure and the outside pressure of said semiconductor manufacturing apparatus, is set to be 0.06 ((m/s) Pa) or less.Type: GrantFiled: March 29, 2006Date of Patent: January 1, 2008Assignees: Renesas Technology Corp., Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Yoshiaki Kobayashi, Shigeru Kobayashi, Kenji Tokunaga, Koji Kato, Teruo Minami
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Publication number: 20070272610Abstract: A method for collecting bacterial cells comprising: feeding water to be treated containing ammonium and nitrite to an anaerobic ammonium oxidation vessel to denitrify ammonium and nitrite by anaerobic ammonium oxidizing bacteria; and feeding the denitrified treated water to a precipitation vessel, in which an acclimatization container is stored, to cause anaerobic ammonium oxidizing bacteria in the treated water to be attached to an immobilizing material in the acclimatization container, so that the anaerobic ammonium oxidizing bacteria are collected, and, at the same time, to collect anaerobic ammonium oxidizing bacteria in a separated sludge obtained by solid-liquid separation in the precipitation vessel.Type: ApplicationFiled: July 30, 2007Publication date: November 29, 2007Applicant: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Kazuichi Isaka, Tatsuo Sumino
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Patent number: 7267764Abstract: An apparatus for removing nitrogen is provided herein. In the apparatus, the nitrogen is removed from wastewater containing a BOD component and ammonium nitrogen by anaerobic ammonium oxidation.Type: GrantFiled: May 3, 2006Date of Patent: September 11, 2007Assignee: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Kazuichi Isaka, Tatsuo Sumino
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Publication number: 20070074627Abstract: A load balance is adjusted to be appropriate even if shared loads of lifting jacks are fluctuated from an initial setting state caused by cumulative errors of suspending rods. It is a load balance adjusting method of the lifting jack when a lifting module is jacked up by the plural lifting jacks via the suspending rods. The shared loads of the lifting jacks jacking up the respective suspending rods coupled to the lifting module are detected. A height of the lifting jack is adjusted when a fluctuation relative to a setting shared load stored in advance exceeds a prescribed range, to thereby adjust to be the setting shared load.Type: ApplicationFiled: December 5, 2005Publication date: April 5, 2007Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Shigeyoshi Kawaguchi, Yuuji Takahashi
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Publication number: 20070074397Abstract: An interference with existing structures is prevented at a time of a lifting construction of a boiler module. When the boiler module is lifted from the ground by lifting jacks provided on a steel frame main-beam and made an install construction to the main-beam, lifting jacks enabled to move laterally on the main-beam are disposed at forward and backward thereof to suspend the boiler module. The suspended module is lifted up to the main-beam and installed while changing a suspending position between an interference preventing position with existing modules and a prescribed suspending position by alternately moving the forward and backward lifting jacks laterally.Type: ApplicationFiled: December 5, 2005Publication date: April 5, 2007Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Shigeyoshi Kawaguchi, Kazuhito Nakamitsu, Yuuichi Hayashi
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Publication number: 20070074934Abstract: A scaffold assembling of a large component for a boiler requiring inspection is not performed by a high-place work but assembled safely and in a short time. The scaffold is assembled to the large component for the boiler supported by a component supporting beam at the ground side before it is attached to a steel frame main-beam 16. Scaffold lifting/supporting beams interposing coil spaces of a superheater 14 are suspended on wires 36 lifted down from spaces of a ceiling tube wall 34 being a horizontal member of the superheater 14. The scaffold lifting/supporting beams 32 are lifted to raise little by lithe within the superheater, and scaffold components are assembled sequentially toward downward. After a required number of steps of scaffolds are assembled, the scaffold lifting/supporting beams 32 are coupled to the ceiling tube wall 34 to be supported. Finally, the superheater 14 is raised by a lifting means to install to the main-beam.Type: ApplicationFiled: December 5, 2005Publication date: April 5, 2007Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Shigeyoshi Kawaguchi, Kazuhito Nakamitsu, Sinnichi Sagawa
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Publication number: 20070072284Abstract: Provided are a nitrite-type nitrification carrier and a method for producing the same and a method and an apparatus for removing nitrogen using the same, in which the quantity of organic matter to be added can be substantially reduced to reduce running cost. A method for producing a nitrite-type nitrification carrier in which ammonia-oxidizing bacteria for nitrifying ammonium to nitrite is preferentially accumulated comprises the steps of: entrapping and immobilizing any sludge selected from sediment from a lake, a river or the sea, soil from the surface of the earth, or activated sludge from a sewage-treatment plant into a monomer or a prepolymer for immobilizing microorganisms; and then subjecting the entrapped and immobilized sludge to heat treatment at 30 to 80° C.Type: ApplicationFiled: November 16, 2006Publication date: March 29, 2007Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Publication number: 20070072283Abstract: Provided are a nitrite-type nitrification carrier and a method for producing the same and a method and an apparatus for removing nitrogen using the same, in which the quantity of organic matter to be added can be substantially reduced to reduce running cost. A method for producing a nitrite-type nitrification carrier in which ammonia-oxidizing bacteria for nitrifying ammonium to nitrite is preferentially accumulated comprises the steps of: entrapping and immobilizing any sludge selected from sediment from a lake, a river or the sea, soil from the surface of the earth, or activated sludge from a sewage-treatment plant into a monomer or a prepolymer for immobilizing microorganisms; and then subjecting the entrapped and immobilized sludge to heat treatment at 30 to 80° C.Type: ApplicationFiled: November 16, 2006Publication date: March 29, 2007Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Patent number: 7192765Abstract: Provided are a nitrite-type nitrification carrier and a method for producing the same and a method and an apparatus for removing nitrogen using the same, in which the quantity of organic matter to be added can be substantially reduced to reduce running cost. A method for producing a nitrite-type nitrification carrier in which ammonia-oxidizing bacteria for nitrifying ammonium to nitrite is preferentially accumulated comprises the steps of: entrapping and immobilizing any sludge selected from sediment from a lake, a river or the sea, soil from the surface of the earth, or activated sludge from a sewage-treatment plant into a monomer or a prepolymer for immobilizing microorganisms; and then subjecting the entrapped and immobilized sludge to heat treatment at 30 to 80° C.Type: GrantFiled: January 22, 2003Date of Patent: March 20, 2007Assignee: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Tatsuo Sumino, Kazuichi Isaka
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Patent number: 7144508Abstract: A method of removing nitrogen, in which the nitrogen is removed from wastewater containing a BOD component and ammonium nitrogen by anaerobic ammonium oxidation, comprising the steps of: distributing the wastewater into two portions which are a nitrification vessel and a denitrification vessel at a predetermined distribution ratio; mixing first treated water which is nitrified by ammonium oxidizing bacteria from ammonia to nitrite in the nitrification vessel, with second treated water which is denitrified by denitrification bacteria in the denitrification vessel; and feeding the mixed water to an anaerobic ammonium oxidation vessel to simultaneously denitrify ammonia and nitrite by ammonium oxidizing bacteria, thereby obtaining a third treated water treated in the anaerobic ammonium oxidation vessel, which is then fed back to the denitrification vessel for denitrification and BOD decomposition.Type: GrantFiled: March 23, 2005Date of Patent: December 5, 2006Assignee: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Kazuichi Isaka, Tatsuo Sumino
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Publication number: 20060205055Abstract: The present invention can feed substrates without waste to generate seed sludge with high bacterial cell concentrations and can start up operation within a short time, in cultivating anaerobic ammonium oxidizing bacteria with ammonium and nitrite as substrates. Equipment for cultivating anaerobic ammonium-oxidizing bacteria, which cultivates, in a cultivation tank, novel anaerobic ammonium-oxidizing bacteria that anaerobically denitrify nitrite and ammonium used as substrates, comprises an ammonium feed device which feeds ammonium at a given concentration into the cultivation tank, a nitrite feed device which feeds nitrite at a given concentration into the cultivation tank, and a control device which controls a feed rate Y of the substrate.Type: ApplicationFiled: March 13, 2006Publication date: September 14, 2006Applicant: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Kazuichi Isaka, Tatsuo Sumino, Satoshi Tsuneda
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Patent number: 7105337Abstract: Biological treatment for an environmental hormone in water can be efficiently performed by use of a microorganism-immobilized carrier is provided. To biologically remove an environmental hormonal substance in water by a microorganism-immobilized carrier having microorganism immobilized onto a carrier. The microorganism-immobilized carrier is formed of an immobilizing material prepared by mixing and polymerizing a hydrophilic prepolymer and a hydrophobic prepolymer or prepared by polymerizing a prepolymer having a hydrophilic group and a hydrophobic group in a molecule.Type: GrantFiled: January 18, 2002Date of Patent: September 12, 2006Assignee: Hitachi Plant Engineering & Construction Co., Ltd.Inventors: Kazuichi Isaka, Tatsuo Sumino
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Publication number: 20060196815Abstract: An apparatus for removing nitrogen is provided herein. In the apparatus, the nitrogen is removed from wastewater containing a BOD component and ammonium nitrogen by anaerobic ammonium oxidation.Type: ApplicationFiled: May 3, 2006Publication date: September 7, 2006Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Kazuichi Isaka, Tatsuo Sumino
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Publication number: 20060191846Abstract: The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.Type: ApplicationFiled: February 23, 2006Publication date: August 31, 2006Applicant: HITACHI PLANT ENGINEERING & CONSTRUCTION CO., LTD.Inventors: Tatsuo Sumino, Kazuichi Isaka