| 刘辉,杨晓,付文才,党文豪,王志伟.OCC造纸废水中微细胶黏物及Ca2+协同去除的研究[J].中国造纸学报,2021,36(3):54-60 |
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| OCC造纸废水中微细胶黏物及Ca2+协同去除的研究 |
| Study on the Synergistic Removal of Micro-stickies and Ca2+ from OCC Wastewater |
| 投稿时间：2021-07-14 |
| DOI：10.11981/j.issn.1000-6842.2021.03.54 |
| 中文关键词: OCC造纸废水 微细胶黏物 电絮凝 Ca2+ 絮凝体 |
| Key Words:OCC papermaking wastewater micro-stickies electrocoagulation Ca2+ floc |
| 基金项目:国家自然科学基金（21868004）；广西重点研发计划项目（桂科AB19259013）。 |
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| 中文摘要: |
| 废旧箱纸板（OCC）造纸废水回用过程中面临着微细胶黏物沉积和因Ca2+浓度过高引起的厌氧颗粒污泥钙化两大难题。本研究对比评估了电絮凝法、物理法、化学法、生物酶法对模拟OCC造纸废水的处理效果；结果表明，电絮凝法能够更好去除OCC造纸废水中的微细胶黏物和Ca2+。在此基础上研究了电絮凝处理的最佳条件：铝为阳极材料，电流密度、电极间距和反应时间的最佳处理条件分别为115 A/m2、5 cm和60 min。在最佳条件下，经电絮凝处理后得到的絮凝体中，Al3+和Ca2+的相对含量高于对照组，表明电絮凝法能有效去除OCC造纸废水中的微细胶黏物、COD和Ca2+，且该方法绿色无污染，符合可持续发展的要求。 |
| Abstract: |
| There are two problems in the reusing process of OCC papermaking wastewater， i.e.， the deposition of micro stickies and the calcification of anaerobic granular sludge caused by high Ca2+ concentration. The effects of electrocoagulation， physical， chemical， and biological enzymatic treatments towards OCC papermaking wastewater were compared in this study. The results showed that the electrocoagulation treatment could remove more micro-stickies and Ca2+ compared with other methods. The optimal conditions of electrocoagulation treatment were further explored： aluminum used as the anode， the current density， electrode distance， and reaction time were 115 A/m2， 5 cm， and 60 min， respectively. The relative contents of Al3+ and Ca2+ in flocs after electrocoagulation treatment （under the optimum conditions） were higher than those in the control group， indicating that the micro-stickies， COD， and Ca2+ in OCC wastewater were removed by electrocoagulation effectively， which is a green and non-pollutant process conforming to the requirements of sustainable development. |
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