Electric heating promotes sludge composting process: Optimization of heating method through machine learning algorithms

被引：4

作者：

Wang, Youzhao ^{[1
]}

Ma, Feng ^{[1
]}

Zhu, Tong ^{[1
]}

Liu, Zheng ^{[1
]}

Ma, Yongguang ^{[3
]}

Li, Tengfei ^{[1
]}

Hao, Liying ^{[2
]}

机构：

[1] Northeastern Univ, Inst Proc Equipment & Environm Engn, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China

[2] China Med Univ, Sch Pharm, Dept Pharmaceut Toxicol, Shenyang 110122, Peoples R China

[3] Shenyang Univ Technol, Sch Environm & Chem Engn, Shenyang 110870, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2023年 / 382卷

关键词：

Organic matter; Composting temperature; Energy consumption ratio; Least squares model; Microbial community; HUMIFICATION; TEMPERATURE;

D O I：

10.1016/j.biortech.2023.129177

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Composting with electric heating has attracted extensive attention for the advantage of high treatment efficiency for sludge. However, there are challenges in investigating how electric heating affects the composting process and how to reduce its energy consumption. This study investigated the effects of different electric heating methods on composting. The highest temperature, water content reduction, organic matter reduction, and weight reduction rate in group B6 (heating in the first and second stages) were 76.00 degrees C, 16.76 %, 4.90 %, and 35.45 %, respectively, indicating that electric heating promoted water evaporation and organic matter degra-dation. In conclusion, electric heating promoted the sludge composting process and the heating method of group B6 was optimal for composting characteristics. This work contributes to the understanding of the mechanism of electric heating promoting composting process and providing theoretical support for the engineering application of composting with electric heating.

引用

页数：11

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