制革醛鞣固体废弃物的酶法资源化利用

doi:10.13560/j.cnki.biotech.bull.1985.2018-0880

生物技术通报 ›› 2019, Vol. 35 ›› Issue (5): 176-180.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0880

制革醛鞣固体废弃物的酶法资源化利用

郑翔^1,2, 秦梦¹, 高沛汝¹, 秦艳梅¹, 马清河¹

1.河北省微生物研究所酶工程实验室,保定 071051;
2.河北大学生命科学学院,保定 071002

收稿日期:2018-10-15 出版日期:2019-05-26 发布日期:2019-05-23
作者简介:郑翔,男,博士研究生,助理研究员,研究方向：微生物酶制剂的研发与应用;E-mail：569186912@163.com
基金资助:
河北省重点研发计划项目（18392809D）,河北省科学院科技计划项目（18202）

Enzymatic Utilization of Solid Waste from Formalin Tanning as Resources Using Microbial Enzyme

ZHENG Xiang^1,2, QIN Meng¹, GAO Pei-ru¹, QIN Yan-mei¹, MA Qing-he¹

1.Lab of Enzyme Engineering,Hebei Research Institute of Microbiology,Baoding 071051;
2.College of Life Science,Hebei University,Baoding 071002

Received:2018-10-15 Published:2019-05-26 Online:2019-05-23

摘要/Abstract

摘要： 为建立毛皮制革产生固体废弃物的清洁化、资源化利用工艺,采用JW酶制剂对兔毛皮甲醛鞣制固废进行酶解处理,并对酶解产物的工农业用途进行评估。结果表明,固废中的皮块能够被JW-4酶制剂完全水解。皮块水解后回收的毛纤维经检测其长度优于刀剪工艺,断裂强度、伸长率与原始纤维相当。酶解液中含大量小分子的多肽和氨基酸,氨基酸浓度为5.23%,游离甲醛含量为37.34 mg/kg,重金属含量低于氨基酸肥料标准;将酶解液培养小麦种子后,能够促进小麦提前1 d生根,培养6 d的植株鲜重要优于对照。用清洁产品处理制革固废,不仅避免二次污染,还可对固废进行资源化利用。

关键词: 酶, 资源化, 固体废弃物, 毛纤维, 肥料

Abstract: In order to establish a technology of cleaning and utilizing solid waste as resource in tannery industry,enzymatic hydrolysis of formaldehyde tanning solid waste was carried out by JW enzyme preparation,and the industrial and agricultural applications of enzyme hydrolysate was evaluated. The results indicated that the skin pieces in solid waste were completely hydrolyzed by JW-4 enzyme. The length of animal fiber recovered after the enzymatic hydrolysis of the skin pieces was better than that by scrap knives,and their strength and elongation of fracture were equivalent to that of the original hair fiber. The hydrolysate contained a lot of small peptides and amino acids,in which the concentration of amino acid was 5.23%,the content of freeformaldehyde was 37.34 mg/kg,and the content of heavy metal was lower than the standard of amino acid fertilizer. The wheat rooted 1d in advance after wheat seeds cultivated with the hydrolysate,and plant fresh weight after 6 d cultivation was heavier 13% than the control. Treating leather and solid waste with clean products not only causes no secondary pollution,but also the solid waste could be utilized as resources.

Key words: enzyme, utilization as resource, solid waste, animal fiber, fertilizer

郑翔, 秦梦, 高沛汝, 秦艳梅, 马清河. 制革醛鞣固体废弃物的酶法资源化利用[J]. 生物技术通报, 2019, 35(5): 176-180.

ZHENG Xiang, QIN Meng, GAO Pei-ru, QIN Yan-mei, MA Qing-he. Enzymatic Utilization of Solid Waste from Formalin Tanning as Resources Using Microbial Enzyme[J]. Biotechnology Bulletin, 2019, 35(5): 176-180.

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制革醛鞣固体废弃物的酶法资源化利用

Enzymatic Utilization of Solid Waste from Formalin Tanning as Resources Using Microbial Enzyme

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