E-waste is one of the fastest growing waste streams in India due to increasing “market penetration” in developing countries, “replacement market” in developed countries and “high obsolescence rate”. The composition of e-waste is very diverse and differs in products across different categories. It contains more than a 1000 different substances, which fall under “hazardous” and “nonhazardous” cat...

A growing demand – above all in industrialised countries – for safer foods and cleaner production processes has been observed in recent times. This has led to a drive, by the agro-alimentary industries, for waste reduction and upgrading as a strategy to reduce costs and achieve new sources of income. In fact, waste may be a source of high-added value products potentially useful as beneficial fo...

Electronics equipment waste ("e-waste") includes discarded computers, computer monitors, television sets, and cell phones. Less than 10% of e-waste is currently recycled. The United States and other developed countries export e-waste primarily to Asia, knowing it carries a real harm to the poor communities where it will be discarded. A 2006 directive bans the use of lead, mercury, cadmium, hexa...

An overview is provided of the production processes, waste generation, and waste management of the electronics products industries. Chosen product areas include electron tubes, semiconductors, capacitors/resistors, and printed circuit/wiring boards. Examples are given o f specific processes and associated waste streams. Waste minimization activities are identified, and specif?c examples of succ...

Solid waste management in steel industry is broadly classified in “4 Rs” i.e. reduce, reuse, recycle and restore the materials. Reuse and recycling the entire solid waste generated in the process of steel making is a viable solution in targeting a clean, green and zero waste technology leading to sustainable development of the steel industry. Solid waste management has gained importance in stee...

Marine biomass including fishery products are precious protein resources for human foods and are an alternative to livestock animals in order to reduce the virtual water problem. However, a large amount of marine waste can be generated from fishery products and it is not currently recycled. We evaluated the metabolism of digested marine waste using integrated analytical methods, under anaerobic...

the waste tyres represent a source of energy and valuable hydrocarbon products. waste tyres were pyrolysed catalytically in a batch reactor under atmospheric pressure. the effects of basic catalysts (mgo and caco3) were studied on the pyrolysis products. the distribution ratio of gas, liquid and char with mgo and caco3 were 24.4:39.8:35.8 wt % and 32.5:32.2:35.2 wt % respectively at 350°c for 2...

According to the revised European Union (EU) Directive on Waste (2008/98/EC), widely known as Waste Framework Directive (WFD), waste prevention embraces all the measures taken before a substance, material or product has become waste, that reduce the quantity of waste, the adverse impacts of the generated waste on environmental and human health, and the content of harmful substances in materials...