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| Research Progress of AOX Reduction Technology for ECF Bleaching |
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| DOI：10.11981/j.issn.1000-6842.2017.02.52 |
| Key Words:ECF; AOX; process optimization; chemical additive; pretreatment |
| Fund Project:国家自然科学基金资助项目(21466004)、广西清洁化制浆造纸与污染控制重点实验室(2013GXNSFFA019005)。 |
| Author Name | Affiliation | | 朱慧霞1,2 | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 | | 姚双全1,2 | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 | | 陈仰美1,2 | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 | | 李新宇1,2 | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 | | 聂双喜1,2 | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 | | 覃程荣1,2,* | 1.广西大学轻工与食品工程学院,广西南宁,530004；2.广西清洁化制浆造纸与污染控制重点实验室,广西南宁,530004 |
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| Abstract: |
| This paper discussed the research background and status of absorbable organic halogens (AOX) reduction technology at home and abroad. Meanwhile, the following AOX reduction technologies were summarized. Firstly, the amount of chlorine bleaching agent could be reduced by adjusting bleaching process, in order to reduce the AOX formation. Secondly, adding chemical additives such as H2O2 or sulfur-based, nitrogen-based, etc. additives to inhibit the AOX formation. Thirdly, pretreatment before bleaching including using hot water pre-extraction, acid or alkali pretreatment and biological enzyme pretreatment to reduce the content of lignin and hemicellulose in pulp, so as to reduce the AOX formation. |
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