Biohydrogen Generation From Macroalgal Biomass, Chaetomorpha antennina Through Surfactant Aided Microwave Disintegration

Dinesh Kumar,Jeyakumar Rajesh Banu,Somanathan Adishkumar,Jeong-Hoon Park,Arumugapal Parvathy Eswari

doi:10.3389/fenrg.2019.00078

Dinesh Kumar, Jeyakumar Rajesh Banu + Show 3 more

Open Access

https://doi.org/10.3389/fenrg.2019.00078

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Abstract

This present work intended to enhance the possibility of enhance the solubilization and biohydrogen (H2) production from Chaetomorpha antennina (marine macroalgae) through surfactant (ammonium dodecyl sulfate – ADS) aided with microwave disintegration pretreatment (SMD). Microwave disintegration (MD) was implemented by varying power intensity from 10 – 70% for the time period of 0 – 30 mins. In microwave disintegration (MD), maximum soluble organic release of 1260 mg/L and solubilization of 14.6 % were attained in 15 mins. Using surfactant, soluble organic release improves up to 1490 mg/L at the optimum MD power condition of 40 %. High solubilization of 17.3% was achieved at dosage of 0.0035 g/g TS. Higher H2 generation of 74.5 mL/g COD was obtained in SMD method. Hence, SMD pretreatment reduced the pretreatment time and increases the organic release compared to MD.

Highlights

Decreasing oil wealth, fuel demand and environmental effects stimulate the exploration of efficient and clean energy
Other effects such as dielectric effects, magnetic field coupling, and electroporation are responsible for degrading the biomass through microwave
This study describes the effective production of biohydrogen through surfactant aided microwave disintegration pretreatment of a marine macroalgal biomass

Summary

Introduction

Decreasing oil wealth, fuel demand and environmental effects stimulate the exploration of efficient and clean energy. Renewable energy production has been initiated in various forms such as wind farms, solar fields, and biomass, biofuel production is the most capable alternative energy source. The use of various substrates impact hydrogen production due to the structure of the biomass which needs optimum disintegration to enhance hydrogen production (Wang and Yin, 2018). Various biomasses such as waste activated sludge (Banu et al, 2018a), rice straw (Kannah et al, 2019), and macro algae (Kumar et al, 2018), have been used to produce biohydrogen.

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