The supplementation of trace elements (TE’s) is a common practice in biogas production and especially in the mono-fermentation of energy crops and agro-processing wastes. The objective of this work is to give an overview on TE’s in the anaerobic digestion process, to show TE deficiencies in different substrates, and to demonstrate the effects of trace element addition on the increase of the Org...

Two comments can be made on this matter. First, it is likely that nuclear power is safe based on short-term issues; the imponderables that carry weight with the objectors are the uncertainties of major accidents, long-term wastes and proliferation. Current risk studies do not banish these fears. Secondly, if these studies aim to influence choice of energy mix for the future, they should extrapo...

When we talk about environmental justice, we mean calling a halt to the poisoning of our poorest communities, from our rural areas to our inner cities. We don’t have a person to waste and pollution clearly wastes human lives and natural resources. When our children’s lives are no longer damaged by lead poisoning, we will stop wasting the energy and intelligence that could build a stronger and m...

Eleven million tonnes of waste are produced yearly by the European pulp and paper industry, of which 70% originates from the production of deinked recycled paper. Wastes are very diverse in composition and consist of rejects, different types of sludges and ashes in mills having on-site incineration treatment. The production of pulp and paper from virgin pulp generates less waste but the waste h...

This work was aimed at studying the applicability of H2O2-based oxidation processes (namely H2O2/UV, photo-Fenton, and Fenton) for the treatment of six real aqueous wastes. These wastes derived from chemical, pharmaceutical, and detergent production, and were characterised by high COD (chemical oxygen demand) and, in four cases, surfactant concentrations: overall, about 100 tests were conducted...

The stabilization of inorganic waste of various nature and origin, in glasses, has been a key strategy for environmental protection for the last decades. When properly formulated, glasses may retain many inorganic contaminants permanently, but it must be acknowledged that some criticism remains, mainly concerning costs and energy use. As a consequence, the sustainability of vitrification largel...

Presently the slaughter houses of khulna city corporation (KCC) area in Bangladesh are being used in such a way that the wastes come from these are polluting the surrounding environment such as river water, solid surface, air etc. In this circumstance, the research analyzed the management options of this slaughter house wastes and determines how this process would be suitably managed through th...