Abstract:
The present study investigated the enhancement of wheat straw and cofee husk
waste used as a biogas source for energy production using iron nanocatalysts from
neem leaf extract. In line with this the synthesized neem leaves extract of Iron nano catalyst was characterized for the morphological and functional group. To achieve
this, thermal acid pretreatment was carried out using equal proportions of blended
wheat straw with cofee husks and subjected to the anaerobic digester with 0.3 g/L
of neem leave extract Fe–O nanocatalyst to improve biogas production. The infu ence of temperature, the concentration of Sulfuric acid, and cooking time during
the pretreatment to improve biogas yield was investigated. Response surface meth odology of Box–Behnken Design (BBD) during the thermochemical pretreatment
is employed. The biomass was pretreated at 160 °C temperatures, 3% concentration
of sulfuric acid, and 30 min of cooking time. The highest cumulative biogas and
biomethane obtained from the biomass were 764 mL/g and 460 mL/g Volatile solid.
Augmentation of neem leaves extract of Iron nanocatalyst enhanced the methane gas
yield with volatile solids up to 89.5%. Therefore, the use of pretreatment for the
catalysis of lignocellulose substrates is advantageous for the creation of a process
that is both economical and environmentally friendly. The produced biogas energy
could be used as a substitute for fossil fuels for various purposes while mitigating
important environmental pollution problems and enhancing sustainable energy uti lization. In considering ‘waste to energy’ for the production of sustainable energy
from waste and fulflling the energy demand is possible.
