Pretreatment methods to improve sludge anaerobic degradability: a review.

Pretreatment methods to enhance anaerobic digestion of organic solid waste

Fate of pharmaceutical and personal care products (PPCPs) during anaerobic digestion of sewage sludge.

Solid-state anaerobic digestion (SS-AD) has gained increasing attention in recent years, especially for digesting lignocellulosic biomass Compared to liquid anaerobic digestion (L-AD), SS-AD handles feedstocks with higher total solids content, and therefore, performs more effectively at higher organic loading rates and has higher volumetric biogas productivity Challenges facing SS-AD of lignocellulosic biomass are primarily related to its relatively low methane yield, potential instability, and low value end-products These challenges are either due to the inherent limits of SS-AD (eg retarded mass transfer caused by high solid content) or can be attributed to the nature of lignocellulosic biomass (eg components recalcitrant to biodegradation) To address these challenges, a variety of methods, including pretreatment of feedstock, improvement of inoculation efficiency, co-digestion of multiple feedstocks, and upgrading biogas to higher-value transportation fuels, have been examined to enhance the performance of SS-AD and increase the value of the end products This review summarizes these challenges in SS-AD of lignocellulosic biomass and discusses the mechanisms and feasibility of potential strategies for resolving them

Challenges and strategies for solid-state anaerobic digestion of lignocellulosic biomass

Waste activated sludge hydrolysis and short-chain fatty acids accumulation under mesophilic and thermophilic conditions: Effect of pH

Mesophilic and thermophilic temperature co-phase anaerobic digestion compared with single-stage mesophilic- and thermophilic digestion of sewage sludge.

Sang-Jo Kwon

Papers

Mesophilic and thermophilic temperature co-phase anaerobic digestion compared with single-stage mesophilic- and thermophilic digestion of sewage sludge.