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从工业回收纸废弃物污泥中生产细菌纤维素

Thuc Tri Nguyen Ngo^1,2, Thuy Han Phan^3,1, Tuan Minh Thong Le^3,1

¹Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Viet Nam.

|July 17, 2023

概括

这项研究将废纸污泥转化为细菌纤维素 (BC),使用优化的酸水解和Acetobacter xylinum发酵. 这种可持续的方法有效利用废物,产生有价值的纳米纤维素材料.

科学领域:

生物技术是生物技术.
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

废纸污泥 (PWS) 含有纤维素,这是生物制品的潜在原料.
利用像PWS这样的工业废物流可以促进循环经济,减少对环境的影响.

研究的目的:

开发一种从废纸污泥中生产细菌纤维素 (BC) 的可持续方法.
优化PWS的水解,以最大限度地减少随后BC发酵的降糖产量.
为了描述产生的BC的纳米结构.

主要方法:

废纸污泥 (PWS) 使用硫酸进行了水解,条件通过Box-Behnken模型进行了优化.
优化过的水解酸被发酵,使用Acetobacter xylinum产生细菌纤维素 (BC).
扫描电子显微镜 (SEM) 和X射线衍射 (XRD) 用于分析BC结构.

主要成果:

最佳的水解条件产生了0.81gGE/g的PWS降解糖,转化率为40.5%.
通过Acetobacter xylinum发酵,产生了12g/L的细菌纤维素.
SEM和XRD证实了在生产的BC中形成纳米纤维纤维网络,总转换收益率为33.3%.

结论:

建立了一种可行的方法,将废纸污泥转化为细菌纤维素.
这一过程显示出纸业废弃物利用的巨大潜力.
该研究强调了从工业副产品中生产附加值纳米纤维素产品的可持续途径.

关键词:

艾斯科巴克特·西林尼姆 (Acecobacter xylinum) 是一种细菌.细菌纤维素的细菌纤维素.优化水解过程的优化.在PWS的水解中使用PWS水解剂.纸张废弃物污泥纸张废弃物污泥硫酸水解是硫酸的水解.

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