Abstract
Abstract In this study, impact of a rice straw-derived biochar on the anaerobic digestion of piggery wastewater was investigated under different ammonium “stress levels”. The results showed that the biogas yield was decreased from 1293.27mL to 402.31 mL and the COD removal rate was decreased from 70.68% to 38.13% with the NH 4 + -N concentration increasing from 900mg/L to 3500 mg/L. At no ammonium “stress level”, the COD removal rate was increased from 70.68% to 83.75%, and biogas yield was increased from 1293.27mL to 2306mL with the increase of biochar dosage from 0g to 15g. While with the addition of biochar increasing from 0g to 15g, the COD removal rate was increased from 38.13% to 70.38% and the biogas yield was increased from 382 mL to 1878 mL at high ammonium “stress level”. It indicated that the presence of biochar not only could promote biogas yield but also could release the ammonium inhibition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
