Role of NH3 recycling on nitrogen fractions during sludge composting

被引：48

作者：

Wang, Ruoxi ^{[1
]}

Zhao, Yue ^{[1
]}

Xie, Xinyu ^{[1
]}

Mohamed, Taha Ahmed ^{[1
,2
]}

Zhu, Longji ^{[1
]}

Tang, Yu ^{[1
]}

Chen, Yufeng ^{[1
]}

Wei, Zimin ^{[1
]}

机构：

[1] Northeast Agr Univ, Coll Life Sci, Harbin 150030, Heilongjiang, Peoples R China

[2] Agr Res Ctr, Soil Water & Environm Res Inst, Giza, Egypt

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 295卷 / 295期

基金：

中国国家自然科学基金;

关键词：

Composting; N fraction; N loss; Redundancy analysis; Structural equation model; REDUCTION; PROMOTION; BACTERIA; MANURE;

D O I：

10.1016/j.biortech.2019.122175

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study is to reduce nitrogen (N) loss and investigate the role of ammonia (NH3) recycling on N fractions, environmental factors and bacterial communities. In this study, collected NH3 from composting and recycled in it. The results showed that NH3 recycling affected N-cycling processes such as nitrification. Redundancy Analyses (RDA) showed that NH4+-N had significantly negative correlation with denitrifying bacteria in treatment group (p < 0.05), demonstrating that NH3 recycling have influenced on the bacterial community structure. Furthermore, Structural Equation Model (SEM) revealed causal relationships between visual variables. Based on these results, we concluded that NH3 recycling is a novel method to reduce N loss.

引用

页数：4

共 23 条

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