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 …

This review presents the state-of-the-art sludge reduction technologies applied in both
wastewater and sludge treatment lines. They include chemical, mechanical, thermal …

This paper presents a review of the main sludge treatment techniques used as a
pretreatment to anaerobic digestion. These processes include biological (largely thermal …

In recent years, increasing attention has been paid to the problem of sewage sludge
management and the relevant energy consumption, which represent the main cost items in …

Sludge management is still one of the most challenging issues in wastewater treatment
plants due to a dramatic increase in sludge production, high sludge disposal costs, legal …

Focus is placed on substrate pre-treatment in anaerobic digestion (AD) as a means of
increasing biogas yields using today's diversified substrate sources. Current pre-treatment …

Most of the pretreatments to sewage sludge in lab-scale studies show high potentials to be
implemented in an anaerobic digester since they produce an increase in the biogas …

In this work, the influence of a low temperature (70–90° C) thermal treatment on anaerobic
digestion is studied. Not only the increase in biogas production is investigated, but attention …

This review summarizes the effect of high-and low-temperature thermal pretreatment (TPT)
on sludge dewaterability, anaerobic digestion (AD), and biogas production efficiencies. The …

With rapid world population growth and strict environmental regulations, increasingly large
volumes of sludge are being produced in today's wastewater treatment plants (WWTP) with …