本技术属于造纸技术领域，涉及一种适合ECF短程序漂白的顺序漂白工艺，漂白流程短，漂白段数少，各漂白段间纸浆不经过水洗涤，环境友好，经济有效。
步骤为：未漂纸浆首先经木聚糖酶辅助漂白(X)，然后调节纸浆pH，加入助剂，进行臭氧漂白(Z)，臭氧漂白结束后进行二氧化氯漂白(D)，即X/Z/D顺序漂白工艺；或者木聚糖酶处理后(X)，先经二氧化氯漂白(D)再进行臭氧漂白(Z)，即X/D/Z顺序漂白工艺。
本技术的顺序漂白工艺，三种漂剂中间不经过洗涤，纸浆白度可提升30％ISO以上。
技术要求1.一种适合ECF短程序漂白的顺序漂白工艺，其特征在于，将未漂纸浆按照X/Z/D或X/D/Z顺序进行漂白，中间不进行洗涤。
2.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，所述未漂纸浆为木材碱法浆。
3.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，木聚糖酶漂白X的工艺条件为：木聚糖酶用量5～20u/g，浆浓10～15％，pH＝5～9，漂白温度50～80℃，漂白时间60～120min。
4.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，木聚糖酶漂白X的具体步骤为：调整纸浆浓度，调节pH，调节纸浆温度，加入木聚糖酶，均匀混合后进入贮浆池。
5.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，臭氧漂白Z的工艺条件为：浆浓10～15％，pH＝2～4，漂白温度50～80℃，漂白时间0.5～5min，乙二醇用量1～3％，臭氧用量0.2～1.0％。
6.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，所述臭氧漂白Z的具体步骤为：纸浆经木聚糖酶辅助漂白后，调节pH值，调节纸浆浓度，加入乙二醇，调节温度，经臭氧混合反应器进行臭氧漂白。
7.如权利要求1所述的适合ECF短程序漂白的顺序漂白工艺，其特征在于，二氧化氯漂白D的工艺条件为：ClO2用量0.2～1.0％，浆浓10～15％，pH＝2～4，漂白温度50～80℃，漂白时间10～60min。
臭氧轻ECF漂白邝仕均【摘要】介绍了臭氧漂白的发展概况、臭氧高浓漂白和中浓漂白技术、臭氧漂白工艺运行参数和采用臭氧漂白的优点,并指出臭氧轻ECF漂白可能是应对要求日益严格的废水排放标准的首选漂白方案.%Ozone bleaching development trend,ozone HC bleaching and MC bleaching processes,operation parameters of ozone bleaching and the advantages of using ozone bleaching are reviewed briefly in this paper.It concluded that ozone ECF-light should be the priority choice for the bleaching process which will copes with the more strict effluent discharge regulation.【期刊名称】《中国造纸》【年(卷),期】2013(032)005【总页数】5页(P50-54)【关键词】漂白;臭氧漂白;臭氧轻ECF【作者】邝仕均【作者单位】中国制浆造纸研究院,北京,100102【正文语种】中文【中图分类】TS745尽管认识到臭氧在纸浆漂白中的优越性已有多年，1949 年以来便研究用臭氧代替氯进行纸浆漂白，但臭氧纸浆漂白的第一个工业装置是美国的弗吉尼亚富兰克林的Union Camp 工厂在1992 年才投入应用的。
自此之后，至今已有近30 条采用臭氧漂白的生产线(见表1)［1］。
臭氧漂白和氧脱木素一样，在作为成熟技术被采用之前也经历了一段发展时期。
由于对环境保护的要求日益严苛，纸浆的漂白工艺经历了从元素氯漂白到无元素氯漂白(ECF)，及至目前广泛采用的轻ECF漂白的发展过程。
因为采用臭氧可以进一步降低漂白废水的COD 和AOX 负荷，近年用臭氧取代或部分取代ClO2 的臭氧TCF 漂白和臭氧轻ECF 漂白越来越受到造纸工业的青睐。
蔗渣浆ECF漂白生产实践黄玉梅;周茂贤;徐萃声;陈思益;詹磊;王双飞【摘要】ECF technology has been successfully applied in bagasse pulp bleaching, the quality of the pulp is improved after bleaching, and the pollution load of the wastewater is decreased compared with the conventional process. The mill adopting ECF bleaching technology realises cleaned production and strengthens the core competitiveness.%ECF漂白技术在蔗渣浆漂白生产中成功应用,漂后浆的品质提升,废水污染负荷降低,达到清洁生产要求,提升了企业的核心竞争力.【期刊名称】《中国造纸》【年(卷),期】2012(031)004【总页数】3页(P55-57)【关键词】蔗渣浆;二氧化氯;ECF漂白;清洁化生产【作者】黄玉梅;周茂贤;徐萃声;陈思益;詹磊;王双飞【作者单位】南宁糖业股份有限公司,广西南宁,530031;广西博世科环保科技股份有限公司,广西南宁,530007;广西博世科环保科技股份有限公司,广西南宁,530007;南宁糖业股份有限公司,广西南宁,530031;广西大学轻工与食品工程学院,广西南宁,530004;广西大学轻工与食品工程学院,广西南宁,530004【正文语种】中文【中图分类】TS745广西是我国最大的蔗糖生产地区，蔗渣作为制糖剩余物，资源丰富;以蔗渣为原料的制浆造纸厂很多，还有在建的蔗渣浆新项目。
然而原有蔗渣浆漂白工序均为传统CEH三段漂白［1］，随着国家造纸产业政策及环保政策的逐步落实，ECF(无元素氯)漂白工艺将成为纸浆漂白的主流工艺［2-4］，ClO2将被广泛应用于纸浆漂白［5-6］。
ecf漂白工艺流程英文回答：ECF (Elemental Chlorine-Free) bleaching is a process used in the paper industry to remove lignin and other impurities from wood pulp, resulting in a brighter and cleaner paper product. This process is considered to be more environmentally friendly compared to traditional bleaching methods that use elemental chlorine.In the ECF bleaching process, chlorine dioxide is used as the main bleaching agent. It has a strong oxidizing power, which allows it to break down the lignin and remove it from the pulp. The process involves several stages, each aimed at further reducing the impurities and improving the quality of the pulp.The first stage of the ECF bleaching process is known as the pre-bleaching stage. In this stage, the pulp is treated with a combination of chlorine dioxide and otherchemicals, such as oxygen or hydrogen peroxide. This helps to remove some of the initial impurities and prepare the pulp for the main bleaching stage.Following the pre-bleaching stage, the pulp enters the main bleaching stage. Here, it is subjected to multiple bleaching sequences, each using chlorine dioxide at different concentrations and conditions. These sequences are designed to target specific impurities and break them down further. The number of sequences and their conditions depend on the desired brightness and quality of the final paper product.After the main bleaching stage, the pulp undergoes a post-bleaching stage. This stage is aimed at further improving the brightness and cleanliness of the pulp. Different chemicals, such as hydrogen peroxide or ozone, may be used in this stage to remove any remaining impurities and enhance the overall quality of the pulp.Once the bleaching process is complete, the pulp is washed and treated to remove any residual chemicals. It isthen ready to be used in the production of paper products. The ECF bleaching process helps to produce high-quality paper that meets the requirements of various industries, such as printing, packaging, and writing.中文回答：ECF（无元素氯漂白）是纸张工业中用于去除木浆中木质素和其他杂质的一种工艺流程，从而得到更亮更干净的纸张产品。
