Innovative nanocomposite formulations for enhancing biogas and biofertilizers production from anaerobic digestion of organic waste.

Abstract:

:Herein, the design of nanocomposite (NC) formulations that consist of metal enzyme cofactors, highly conductive carbon materials, DIET activators, to boost AD biogas production from anaerobically incubated cattle manure are investigated and discussed. Three different NC formulations were designed and synthesized: zinc ferrite (ZnFe), ZnFe with 10% carbon nanotubes (ZFCNTs), and zinc ferrite with 10% C76 fullerene (ZFC76). The structure and morphology of the nano-additives were investigated via x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive x-ray (EDX), and transmission electron microscopy (TEM). NCs were supplemented to lab-scale biodigesters containing organic slurry. Biogas production was monitored daily and compared to blank biodigesters for 50 days. The maximum methane enhancement was obtained for ZnFe, which promoted methane production to 185.3%. ZFCNTs and ZFC76 showed a positive impact on the hydraulic retention time and enhanced methane production to 162% and 145.9%, respectively compared to the blank reactors.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Hassaneen FY,Abdallah MS,Ahmed N,Taha MM,Abd ElAziz SMM,El-Mokhtar MA,Badary MS,Allam NK

doi

10.1016/j.biortech.2020.123350

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

123350

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(20)30622-2

journal_volume

309

pub_type

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