Results 51 to 60 of about 700 (208)
The Experience of ECF Bleaching Plant Operation
JAPAN TAPPI JOURNAL, 2006 昨今環境問題への関心が高まっていることや排水関係の規制の強化があり，当社でも数年前に「2004年ECF転換」を目標として掲げ，第一期工事として二酸化塩素発生装置の更新，第二期工事として洗浄工程増強，そして第三期工事としてパルプ漂白設備の更新という3段階に分け設備工事を進めてきた。紀州工場ECF漂白設備は高温二酸化塩素漂白（DUAL―D）を導入し2004年8月に稼働開始した。D＊タワーから洗浄機へのパルプの移送としては世界で初めてのグラビティーフィード方式であり設備が簡略化されている。本報ではこれらECF転換の為の新設備導入経緯や新設備稼働によって得られた操業経験について報告する。
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TAPPI Journal, 2017 An early stage techno-economic analysis was performed to compare a traditional elemental chlorine free (ECF) sequence (O O D0 [EOP] D1 P) with the proposed totally chlorine free (TCF) sequence (O O A [ZEO]1 [ZEO]2 P)] for a bleached eucalyptus kraft pulp mill. Similar operating costs (ECF = US$465/a.d. metric ton; TCF = US$468/a.d.
TIAGO DE ASSIS +6 more
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Unraveling Lignin's Color Puzzle: From Chromophore Origins to Advanced Decolorization Strategies
Aggregate, Volume 7, Issue 1, January 2026.This review provides a comprehensive systematic analysis of the research advancements in lignin color formation mechanisms and decolorization techniques, specifically focusing on three principal approaches: hydroxyl shielding, biomass fractionation, and physical methods. It highlights the systematic research approach of the review toward decolorization
Lizhen Huang, Zhuotong Wu, Li Shuai
wiley +1 more source
Comparative toxicity of effluents from ECF and TCF bleaching of eucalypt kraft pulps [PDF]
, 1996 The toxicity of elemental chlorine free (ECF) and totally chlorine free (TCF) effluents from laboratory scale bleaching of eucalypt kraft pulps was compared using a suite of marine bioassays developed by the National Pulp Mills Research Program.
Simon, J (15479501) +5 more
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On the Process Development of an ECF Light Bleaching Sequence for the Production of High Quality Softwood Kraft Pulp and Low AOX Formation [PDF]
, 2021 The aim of this work is to contribute to the process development of the ECF light bleaching sequence Q(OP)D(PO) by providing a better understanding of the bleaching of softwood kraft pulp.
Starrsjö, Sara
core
BioResources, 2016 The emission standard for adsorbable organic halogen (AOX) has been adjusted as a mandatory assessment indicator in the papermaking industrial pollutants emission standards of China. To provide a theoretical basis to reduce AOX formation, a kinetic model
Huixia Zhu +4 more
doaj +1 more source
Plant Biotechnology Journal, Volume 24, Issue 1, Page 313-327, January 2026.Summary Antifungal proteins (AFPs) derived from filamentous fungi show great potential against economically significant fungi that cause plant diseases and consequently threat food safety and security. This study focuses on the Penicillium expansum PeAfpA and Penicillium digitatum PdAfpB proteins and their activity against several phytopathogens.
Adrià Bugeda +6 more
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BioResources, 2015 In order to further reduce absorbable organic halide (AOX) formation in the bleaching effluent, NH2SO3H and DMSO were added during the elemental chlorine-free (ECF) bleaching (D0EpD1) of bagasse kraft pulp. In the D0 stage, AOX formation decreased by 10%
Shuangquan Yao +5 more
doaj +1 more source
Technical Problems and their Measures for ECF Bleaching
JAPAN TAPPI JOURNAL, 2007 三菱製紙八戸工場は，LBKP製造設備のうちの3BKP系列を2000年10月に，2BKP系列を2005年8月にECF化した。初段が二酸化塩素であるECF漂白は，従来の塩素漂白より酸素漂白後の白色度の影響をより顕著に受ける等の挙動の差が明らかになった。又，ECF漂白導入によりAOX，クロロホルム排出量の削減等目的とする環境面の改善は達成されたが，同時に操業面，パルプ品質面で新たな技術的課題が発生した。それらは漂白コストの増加，シュウ酸カルシウムスケールのディフューザースクリーンへの付着，パルプの色戻り等である。これらの課題を根本的に解決するには，これらに深く係わっているヘキセンウロン酸対策を進めていく必要がある。本報は，ECF漂白稼働後の操業を通して明らかになったECF漂白の特徴 ...
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Covalent Organic Framework‐Based Photocatalysts from Synthesis to Applications
ENERGY &ENVIRONMENTAL MATERIALS, Volume 8, Issue 6, November 2025.This review explores the principles, synthesis, and reactions of COFs, highlighting their structural influences on photocatalytic activity. It presents key applications of COFs as photocatalyst. Various modification strategies for optimizing their efficiency are discussed.
Junxian Liu +5 more
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