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Coagulation of Sericin Protein in Silk Degumming Wastewater Using Quaternized Chitosan

机译：季铵化壳聚糖对丝胶脱胶废水中丝胶蛋白的凝血作用

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摘要

The evaluation of 2-hydroxypropyltrimethyl ammonium chloride chitosan (HACC), a biodegradable cationic polymer, for the coagulation of sericin in silk degumming waste solution was carried out using jar-test coagulation experiments. The coagulation efficiency was assessed by the factors of residual turbidity, sericin removal and COD_(Cr)- The results indicated that the efficiency were dependent on the operational parameters of pH, coagulant dosage and settling time. The optimal pH value was found to be around 8, while a 1 g/L HACC dosage was sufficient in providing more than 98 % turbidity removal and 76 % sericin removal. The results were comparable to those got by the use of conventional coagulants. The coagulation of sericin by HACC may be involved in a dual mechanism including charge neutralization and bridging mechanism. Moreover, the sludge cake from the coagulation, mainly containing sericin protein and modified chitosan, might be used as finishing agent for polyester fabric or food additive for animals after fundamental purified.
机译：使用广口瓶试验混凝实验，对可生物降解的阳离子聚合物2-羟丙基三甲基氯化铵壳聚糖（HACC）进行丝胶脱胶废液中丝胶蛋白的混凝效果进行了评估。通过残留浊度，丝胶去除率和COD_（Cr）等因素评估了混凝效率。结果表明，混凝效率取决于pH的操作参数，混凝剂用量和沉降时间。发现最佳pH值约为8，而1 g / L HACC剂量足以去除98％以上的浊度和76％的丝胶。结果与使用常规混凝剂获得的结果相当。 HACC对丝胶蛋白的凝结可能涉及双重机制，包括电荷中和和桥接机制。此外，来自凝结物的污泥饼主要包含丝胶蛋白和改性壳聚糖，可以在基本纯化后用作聚酯织物的整理剂或动物食品添加剂。

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  • 来源
    《Journal of Polymers and the Environment》 |2012年第3期|p.858-864|共7页
  • 作者

    Junxiong Lin; Lan Wang; Lei Wang;

  • 作者单位

    Engineering Research Center for Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Ministry of Education of China, Hangzhou 310018, China;

    Engineering Research Center for Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Ministry of Education of China, Hangzhou 310018, China;

    Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Ministry of Education of China, Hangzhou 310018, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    chitosan; sericin; coagulation; flocculation;

    机译：壳聚糖丝胶凝结;絮凝;

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