Comparison of the Effects of Pulsed Electric Field Disintegration and Ultrasound Treatment on the Efficiency of Biogas Production from Chicken Manure

Abstract

This study used chicken manure classified as lignocellulosic biomass due to its high straw content. This paper compares the possibility of using pulsed electric field (PEF) pretreatment of lignocellulosic substrates with ultrasonic disintegration (UP) to increase methane production. As for ultrasonic treatment, the BMP increased from 210.42 ± 7.92 mL/g VS to 250.06 ± 8.68 mL/g VS, whereas with PEF disintegration, the BMP ratio increased from 210.42 ± 7.92 mL/g VS to 248.90 ± 9.29 mL/g VS. The use of PEF and UP pretreatment increased methane production from 307.29 ± 13.65 mL/g VS to 366.99 ± 14.18 mL/g VS and from 307.29 ± 13.65 mL/g VS to 365.07 ± 11.71 mL/g VS, respectively. This study showed that both ultrasonic treatment and PEF contribute to the biochemical potential of methane (BMP) from chicken manure.