Free ammonia (FA) can pose inhibitory and/or biocidal effects on a variety of
microorganisms involved in different biological wastewater treatment process, which is …

The removal of heavy metals from sewage sludge (SS) is attracting increasing attention
because the presence of toxic heavy metals in SS restricts its reuse or disposal, especially …

The rupture of cytoderm and extracellular polymeric substances (EPS), and competitive
inhibition of methanogens are the main bottlenecks for medium-chain fatty acids (MCFAs) …

Anaerobic digestion (AD) of waste activated sludge (WAS) is an important bio-energy
strategy that has been hindered by low conversion efficiency. This paper presents a …

Anaerobic digestion (AD) is a widely applied technology for treating organic wastes to
generate renewable energy in the form of biogas. The effectiveness of AD process depends …

Sewage sludge is rich source of carbon, nutrients, and trace elements and can be subjected
to proper treatment before disposal to fulfill government legislation and protect receiving …

Sludge generated at sewage treatment plants is of environmental concern due to the
voluminous production and the presence of a high concentration of emerging contaminants …

Owing to the development of urbanization, the amount of sewage sludge generated through
biological activated sludge process has increased dramatically. Anaerobic fermentation of …

Currently, sludge is not considered as a waste any more, since it is capable of producing
valuable products. Besides land disposal and thermochemical processes (ie pyrolysis …

Dissolved organic matter (DOM) of sludge is a heterogeneous mixture of high to low
molecular weight organic substances which is including proteinaceous compounds …