 Improvement of biogas production from slaughterhouse wastewater using biosynthesized iron nanoparticles from water treatment sludgeMohammad Yazdani, Mohammadali Ebrahimi-Nik, Ava Heidari and Mohammad Hossein Abbaspour-Fard Renewable Energy, 2019, vol. 135, issue C, 496-501 Abstract: This study was conducted to examine the feasibility of recovering ferric coagulant from drinking water treatment sludge (DWTS) for green synthesis of iron nanoparticles (NPs). Black tea extract was utilized for the bio-reduction of ferric chloride. The as-synthesized product was characterized and confirmed as iron NPs, using UV–vis spectrometry, XRD, FT-IR, SEM, and EDX analyses. The synthesized NPs were sphere-like with diameter in the range of 20–40 nm. The performance of the iron NPs as micronutrients supplements in anaerobic digestion of slaughterhouse wastewater was studied at three different concentrations. The results showed that the addition of iron NPs in all concentrations improved the biogas production and shortened the lag phase. The highest biogas yield was obtained from 9 mg L−1 of additive which corresponds to up to 37.6% enhancement over the control reactor. Moreover, iron NPs improved COD reduction efficiency to 42%. Keywords: Drinking water treatment sludge; Iron nanoparticle; Slaughterhouse wastewater; Anaerobic digestion (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:135:y:2019:i:c:p:496-501 DOI: 10.1016/j.renene.2018.12.019 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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