Dependence on fossil fuels such as oil, coal and natural gas are on alarming increase,
thereby causing such resources to be in a depletion mode and a novel sustainable …

Water pollution is on the rise because of increased human population and activities,
unsustainable agricultural practices, and rapid industrialization, and it is a major global …

This study evaluated an anaerobic digestion (AD) process in two-stage for both organic
matter removal and energy production, treating wastewaters from the beverage industry. The …

In recent years, biorefinery approach with a zero-waste concept has gained a lot research
impetus to boost the environment and bioeconomy in a sustainable manner. The wastewater …

The human population is increasing rapidly, and people are migrating from villages to urban
areas for their livelihood. In third-world countries, around 2.1 billion of the populace will be …

The growing acceptance of hydrogen as a suitable substitute for fossil fuel makes it a
resource that can be completely utilized in decarbonizing the environment. It is recognized …

The first hypothetical hydrogen (H 2) production from biological means was proposed in the
early of nineteenth century. However, the biological H 2 production technology did not …

Increased production of renewable energy sources is becoming increasingly needed.
Amidst other strategies, one promising technology that could help achieve this goal is …

Sewage sludge is the solid, semi-solid or slurry material that is left after the waste water
treatment processes. Management of sewage sludge is one of the challenging issues faced …

Hydrogen, the simplest fuel, is also the one with the highest energy density, and the only
one whose combustion produces only water as a byproduct. Because it is non-polluting and …