The high investment cost required by modern treatment technologies of hazardous sewage
sludge such as incineration and anaerobic digestion have discouraged their application by …

Biogas production from different waste resources still has limitations due to its complex
structure and slowly biodegradable nature. To improve methane yield and anaerobic …

Sewage sludge management is now becoming a serious issue all over the world. Anaerobic
digestion is a simple and well-studied process capable of biologically converting the …

When properly designed, pretreatments may enhance the methane potential and/or
anaerobic digestion rate, improving digester performance. This paper aims at providing …

Phosphorus (P) is an essential microelement for biota. Phosphate minerals obtained
through subsurface mining are the main sources of P. Phosphate-bearing rocks are …

This paper reviews pretreatment techniques to enhance the anaerobic digestion of organic
solid waste, including mechanical, thermal, chemical and biological methods. The effects of …

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

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 …

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 …

During wastewater treatment, most organic matter is transferred to a solid phase commonly
known as sludge or biosolids. The high cost of sludge management and the growing interest …