期刊文献+

亚麻废纱制备纤维素基絮凝材料及其混凝工业废水性能 被引量:1

Study on cellulose-based flocculant from flax yarn waste and its flocculation performance in treating industrial wastewater
在线阅读 下载PDF
收藏 分享 导出
摘要 为提升商业絮凝剂的絮凝效率及环境友好性,以亚麻废纱纤维素(FC)为基础原料,接枝聚丙烯酰胺(PAM),优化制备亚麻废纱纤维素基絮凝材料(FC-g-PAM),部分替代商业聚丙烯酰胺。借助红外光谱仪、场发射扫描电子显微镜、有机元素分析仪、X射线衍射仪、热重分析仪对FC-g-PAM的表观形貌和化学结构进行分析与表征,并考查其生物可降解性能,研究FC-g-PAM混凝处理印染、造纸和机械加工废水性能。结果表明:FC-g-PAM最优制备工艺为反应温度80℃、过硫酸铵用量0.30 g/g、PAM用量0.25 g/g、FC质量分数6%;FC-g-PAM热稳定性能优于FC,90 d生物降解率达68.5%;印染废水经FC-g-PAM混凝处理后浊度为17 NTU、色度为126倍、悬浮物含量为36 mg/L、COD Cr值为372 mg/L、BOD 5值为132 mg/L,混凝效果优于商业PAM。 In order to improve the flocculation efficiency and environmental friendliness of commercial flocculants,flax waste cellulose(FC)was grafted with polyacrylamide(PAM)to prepare the FC-g-PAM for partial replacement of the commercial PAM.The morphology and chemical structure of the FC-g-PAM were characterized by FT-IR,field emission scanning electron microscopy,organic element analyzer,X-ray diffractometer and thermogravimetric analysis.Its biodegradability was also investigated.The flocculation performance of the FC-g-PAM in treating wastewater from dyeing,papermaking and mechanical processing were studied.The results showed that the optimal synthesis conditions for preparing FC-g-PAM were:reaction temperature 80℃,ammonium persulfate dosage 0.30 g/g,PAM dosage 0.25 g/g and FC concentration 6%.Thermal stability of FC-g-PAM was demonstrated better than that of FC and 90 d biodegradation rate reached 68.5%.After the flocculation of the FC-g-PAM,the turbidity of treated dyeing wastewater was 17 NTU,chromaticity at 126,supended matter content at 36 mg/L,COD Cr at 372 mg/L,BOD 5 at 132 mg/L.All these indices of FC-g-PAM indicate better flocculation performance than those of the commercial PAM.
作者 陈冬芝 杨晓刚 陈艳霞 刘琳 陈彬 崔科丛 张勇 CHEN Dongzhi;YANG Xiaogang;CHEN Yanxia;LIU Lin;CHEN Bin;CUI Kecong;ZHANG Yong(Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China;Tianjin Changwei Biotechnology Co.,Ltd.,Tianjin 300300,China;State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong 510640,China)
出处 《纺织学报》 EI CAS CSCD 北大核心 2020年第1期88-95,共8页 Journal of Textile Research
基金 国家自然科学基金面上项目(61571002) 浙江省公益技术应用研究项目(2017C31034) 浙江省基础公益研究计划项目(LGF18C160002) 制浆造纸工程国家重点实验室开放基金项目(201758)。
关键词 亚麻废纱 纤维素基絮凝材料 混凝沉淀 印染废水 造纸废水 机械加工废水 flax yarn waste cellulose-based flocculant flocculation dyeing wastewater papermaking wastewater mechanical processing wastewater
  • 相关文献

参考文献2

二级参考文献33

共引文献4

同被引文献19

引证文献1

论文智能改写系统
维普数据出版直通车
投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈