Article All rights reserved
refereed
published

Enhancing anaerobic digestion of chicken manure leachate : Effects of trace elements supplementation on methane production

Affiliation
Department of biochemical conversion, Deutsches Biomassforschungszentrum gemeinnützige GmbH, Torgauer Straße116, Leipzig, Germany
Cai, Yafan;
Affiliation
Department of biochemical conversion, Deutsches Biomassforschungszentrum gemeinnützige GmbH, Torgauer Straße116, Leipzig, Germany
Janke, Leandro;
Affiliation
College of Agronomy and Biotechnology, Biomass Engineering Center, China Agricultural University, Beijing, China
Zheng, Zehui;
Affiliation
College of Agronomy and Biotechnology, Biomass Engineering Center, China Agricultural University, Beijing, China
Wang, Xiaofen;
Affiliation
Department of biochemical conversion, Deutsches Biomassforschungszentrum gemeinnützige GmbH, Torgauer Straße116, Leipzig, Germany
Pröter, Jürgen;
Affiliation
Department of biochemical conversion, Deutsches Biomassforschungszentrum gemeinnützige GmbH, Torgauer Straße116, Leipzig, Germany
Schäfer, Franziska

Anaerobic digestion (AD) of Chicken manure (CM) often faces several obstacles such as high total ammonia nitrogen (TAN) concentration, inclusion of many hard-to-decompose litters as wood chips, and presence of inorganic soil particles. To address these obstacles, degradable fractions of CM were extracted by leaching and the chicken manure leachate (CML) obtained was used for AD. The effects of trace element (TE) supplementation in stimulating microbial activity and enhancing the AD process, under increasing organic loading rate (OLR) and TAN concentration, were investigated. The results showed that CML was successfully converted, reaching a stable methane yield of 288 mL g−¹ VS when TAN was lower than 1.5 g L−¹. Under higher OLR (0.85 gVS L−¹ d−¹) and TAN (2.64 g L−¹), TEs supplementation gave 36.5% higher methane yield (p < 0.05). Overall, extracting leachate from CM in combination with TE supplementation was shown to be a promising strategy for CM treatment.

Cite

Citation style:
Could not load citation form.

Access Statistic

Total:
Downloads:
Abtractviews:
Last 12 Month:
Downloads:
Abtractviews:

Rights

Use and reproduction:
All rights reserved

Export