一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Bioresource Technology >>article
Bioresource Technology

Bioresource Technology

IF: 9.7
Download PDF

Investigating enhancement of protease and lysozyme combination pretreatment on hydrolysis of sludge organics under humic acid inhibition

Published:4 December 2024 DOI: 10.1016/j.biortech.2024.131928 PMID: 39643052
Xiang Zou,?Junguo He,?Xinlei Pan,?Qiupeng Cai,?Shengye Duan,?Yijie Zhong,?Xinxin Cui,?Jie Zhang

Abstract

This study investigated the impact of humic acid (HA) on enzymatic pretreatment efficiency, focusing on sludge properties and HA molecular structure. The results showed that enzymatic pretreatment alleviates HA inhibition, improving hydrolysis efficiency. In the presence of HA, soluble proteins and polysaccharides in the enzyme-cocktail group reached 27.7?mg/L and 23.9?mg/L, 1.4 and 1.3 times higher than the blank group, respectively. The enzyme-cocktail group also had the highest soluble DNA concentration (19.4?mg/L) and the lowest viable cell proportion (69.3?%), indicating effective cell lysis. Enzyme-cocktail pretreatment reduced electrostatic repulsion, enhancing the mobility of extracellular organics. Enzyme interactions with HA released internal hydrolases and decreased amide groups on the HA surface, increasing the availability of biodegradable substrates. Overall, enzymatic pretreatment proves effective in mitigating HA-induced inhibition, thereby improving sludge biodegradation and enhancing carbon recovery in anaerobic fermentation.

Substances (2)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Lysozyme 12650-88-3 C125H196N40O36S2 632 suppliers $38.80-$5080.00
DISPASE 78990-62-2 112 suppliers Inquiry
内丘县| 西盟| 永寿县| 昌邑市| 鸡西市| 邹平县| 永川市| 湖南省| 胶州市| 遂平县| 龙南县| 澎湖县| 揭东县| 河间市| 耒阳市| 香格里拉县| 德阳市| 登封市| 镶黄旗| 横峰县| 饶阳县| 二连浩特市| 吴桥县| 陈巴尔虎旗| 繁峙县| 盐边县| 名山县| 天峨县| 晴隆县| 博爱县| 新乡县| 色达县| 南召县| 图片| 靖远县| 吴江市| 丰顺县| 鄢陵县| 霸州市| 祥云县| 宁波市|