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Facilities/Equipment

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  • 2013.04.15.MON

    Utility

    Atsushi Nunome

    In the last installment, I will talk something about ion exchange resin and pure water equipment. When pure water equipment is mentioned, ion exchange tower will come to mind, and it's utilized a lot in large scale of pure water equipment in power station. Besides, EDI is also filled with ion exchange resin. The biggest risk of ion exchange resin comes from ultimate batch treatment by repeating intake of water and regeneration time and time again. In addition, because ion exchange resin is organic, oxidative degradation is inevitable.

  • 2013.03.11.MON

    Utility

    Atsushi Nunome

    In pharmaceutical water plumbing system, a place where water can't move away and resides is called dead leg. It is called 6D rule that pipelines should not have an unused portion greater in length than 6 diameters (the 6D rule) of the unused portion of pipe measured from the axis of the pipe in use. It's indispensable for pharmaceutical water system which requires sterile or nearly sterile environment to minimize dead legs.

  • 2013.02.04.MON

    Utility

    Atsushi Nunome

    In this installment, I will introduce distiller which is located at the end of the water for injection producing process about its structure as a separator, how to prevent entrainment and how to save energ

  • 2013.01.08.TUE

    Utility

    Atsushi Nunome

    Continuing with the last installment, I will compare the most important sterilization technology in pharmaceutical water system-RO and UF.

  • 2012.12.10.MON

    Utility

    Atsushi Nunome

    Factors to determine the filter sequence is not simple.

  • 2012.11.12.MON

    Utility

    Atsushi Nunome

    Flocculation separation is a pretreatment method for separating suspended substances and a part of soluble substances. There are two methods flocculation/precipitation and flocculation pressure floatation for solid-liquid separation of the flock generated by flocculation separation to obtain treated water. Flocculation filtration may cause trouble to the latter part of filtration apparatus, so it should be carefully discussed.

  • 2012.10.09.TUE

    Utility

    Atsushi Nunome

    Membrane separation is to separate supply water and permeated water with membrane. Consequently, the microorganisms contained in the supply water are removed, and this process is called filtering sterilization. The most crucial problem of membrane separation is the microorganisms are not been killed when captured. From the very beginning of aseptic process, the sterility of the secondary side of filtering sterilization membrane should be assured.

  • 2012.09.03.MON

    Utility

    Atsushi Nunome

    There are two meanings contained in the title 'Water treatment starts with filtration'. The first one is to produce drinking water by filtering natural water. the second one is pretreatment of water purifying starts with filtration. Though the filter will be clogged after using, the clogging of filter can't be found out just by its appearance. Usually, pressure difference detection or a washing cycle is carried out. When using filter in industry, it's very important to establish washing method.

  • 2012.08.06.MON

    Utility

    Atsushi Nunome

    TOC is one of the monitoring items for quality control of pharmaceutical water. In the 16th revised JP, TOC has taken the place of purity test to inspect the organic substances in pharmaceutical water. In this installment, I will talk about the essential matters of measuring TOC.

  • 2012.07.02.MON

    Utility

    Atsushi Nunome

    It's important to keep the water quality the same as of starting up after establishing the pharmaceutical water system. Validation of pharmaceutical system is to confirm whether the completed system can perform as intended and produce water with expected quality constantly.

  • 2012.06.25.MON

    Other Facilities/Equipment Matters

    Gordon J.Farquharson

    European perspective June 2012(原文)です。日本語翻訳版もございます。(翻訳版のみではなく、必ず原文をご確認ください)

  • 2012.06.04.MON

    Utility

    Atsushi Nunome

    As natural water, drinking water contains various impurities, and those impurities can be divided into 6 classifications from the point of being the source water of pharmaceutical water. Among those 6 classifications of pharmaceutical water, water for injection is the strictest on water quality, the ultimate goal of which is to minimize the pyrogen. In those 6 classifications, purified water, the inorganic ion and organic ion of which has been reduced to a defined limit, can be the source water of water for injection.

  • 2012.05.01.TUE

    Utility

    Atsushi Nunome

    Purified water is used extensively in the manufacture of pharmaceuticals, medical devices and cosmetic. Though there's no big difference between the purity of it and the common pure water, purified water is easier to be polluted than tap water and should be used as soon as possible after produced. Furthermore, the biggest difference from the other water is that the production and storage method are specified in the pharmacopeia.

  • 2012.04.16.MON

    Utility

    Shigehiro Tahara

    Comparison of three-regional (Japan, Us, EU) specifications

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