新型无机-有机配合物的絮凝作用及絮体回用效果
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摘要
利用阳离子角蛋白与聚硫酸铝合成新型无机-有机配合物絮凝剂,对比分析其与单一阳离子角蛋白、聚硫酸铝絮凝剂对皮革染色加脂废水的絮凝效果,收集絮体处理后用作皮革填充剂,研究其对皮革的填充性能。结果表明:新型无机-有机配合物絮凝剂的絮凝效果最佳,对COD、SS、色度和浊度的去除率分别为84.60%、96.56%、96.14%和98.06%。絮体用作皮革填充剂后皮质柔软丰盈,各项测试性能指标均得到提高,其中坯草的厚度、拉伸强度、撕裂强度和断裂伸长率分别提升了10.00%、197.20%、15.20%和24.72%。絮体得到有效回用,可达到以废治废的皮革清洁生产目的。
The new inorganic-organic composite polymer flocculant was synthesized by keratin, 3-chloro-2-hydroxypropyl trim-ethyl ammonium chloride and poly aluminum sulfate as materials. This paper analyzed the complex flocculant of cationic keratin with polyaluminum sulfate how they affected flocculation effect on leather dyeing-fat liquoring wastewater. The flocs recycled into the fat liquoring stage for use as leather fillers. Experiments showed that the complex flocculant of inorganic-organic composite polymer flocculant had the best removal effect on dyeing-fatliquoring wastewater. The removal rates of COD,SS,color,and turbidity in dyeing-fat liquoring wastewater were:84.60%,96.56%,96.14% and 98.06%.And the results showed that the thickening rate, the tensile strength, the tearing strength and the elongation at break of the blank increased by 10.00%、197.20%、15.20% and 24.72%. The results could reach clean technology of leather manufacture.
The new inorganic-organic composite polymer flocculant was synthesized by keratin, 3-chloro-2-hydroxypropyl trim-ethyl ammonium chloride and poly aluminum sulfate as materials. This paper analyzed the complex flocculant of cationic keratin with polyaluminum sulfate how they affected flocculation effect on leather dyeing-fat liquoring wastewater. The flocs recycled into the fat liquoring stage for use as leather fillers. Experiments showed that the complex flocculant of inorganic-organic composite polymer flocculant had the best removal effect on dyeing-fatliquoring wastewater. The removal rates of COD,SS,color,and turbidity in dyeing-fat liquoring wastewater were:84.60%,96.56%,96.14% and 98.06%.And the results showed that the thickening rate, the tensile strength, the tearing strength and the elongation at break of the blank increased by 10.00%、197.20%、15.20% and 24.72%. The results could reach clean technology of leather manufacture.
引文
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[15] 孙永昌.木质素高效分离、结构表征及基于离子液体的降解机理研究[D].北京:北京林业大学,2014.第一作者
[2] Sekaran G, Karthikeyan S, Evvie C. Oxidation of refractory organics by heterogeneous Fenton to reduce organic load in tannery wastewater [J].Clean Techn Environ Policy,2013,15(2):245-253.
[3] Sakmat J, Lopattananon N. Effect of fiber surface modification on properties of artificial leather from leather fiber filled natural rubber composites[J]. Key Engineering Materials, 2015, 659:378-382.
[4] 夏宏,杨德敏. 制革废水及其处理现状综述[J].皮革与化工,2014,31(1):25-29.
[5] 吕凌云,马兴元,牛艳芳.制革废水中氨氮脱除方法的研究进展[J].西部皮革,2009,31(15):22-26.
[6] Verma A K,Dash R R,Bhunia P. A review on chemical coagulation/flocculation technologies for removal of color from textile waste waters[J]. Journal of Environmental Management,2012,93(1):154-168.
[7] 秦建昌,冯雪冬.聚合硫酸铝的制备及形态特征[J].环境化学,2004,23(5):515-519.
[8] 王鸿儒,王倩倩. 阳离子角蛋白絮凝回收利用废水中的皮革助剂[J]. 精细化工,2016,33(2):196.
[9] 俞从正,丁绍兰.皮革分析检验技术[M].北京:化学工业出版社,2005: 201-202.
[10] 蒋维祺. 皮革成品理化检验[M]. 北京:中国轻工业出版社, 1999: 80-102.
[11] 韩雪. 新型聚硅酸金属盐——壳聚糖复合絮凝剂的制备及性能研究[D]. 吉林:吉林大学,2015.
[12] Renault F,Sancey B,Badot P M,et al. Chitosan for coagulation/flocculation processes:an eco-friendly approach[J].European Polymer Journal,2009,45(5):1337-1348.
[13] 牛松,王雪燕,赵振河,等. 改性狗毛蛋白脱色剂的制备及在印染废水脱色方面的应用研究[J]. 印染助剂,2009,26(5):8-11.
[14] 欧胜彬.制革污水处理与废物再利用[J].化工技术与开发, 2002, 31(3):51-53.
[15] 孙永昌.木质素高效分离、结构表征及基于离子液体的降解机理研究[D].北京:北京林业大学,2014.第一作者