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Feasibility studies on using microwave-heating techniques for recycling lead waste

Yarlagadda, Prasad K. (2001) Feasibility studies on using microwave-heating techniques for recycling lead waste. In Proceedings of the International Symposium of Advanced Manufacturing Technology, Chinese University Society of Machining & Advanced Manufacturing, pp. 454-458.

Abstract

Lead is present everywhere in the environment and has been defined as one of the greatest threats to the human health. In this paper, attempts have been made to study a way of recycling the lead produced from waste usage and disposed of in such a way as to avoid degrading the surrounding environment. In order to contain the waste, recycled asphalt material is mixed with the lead and then heated with microwave energy. This is an attempt to solidify and reduce the lead contaminants and use the final product as sub-base material in road pavement construction. The microwave heating of the specimens is carried out with 30%, 50%, 80% and 100% of power at 800W. The optimum power mode is used to compare with the conventional heating of asphalt with sulfur additive. The results are characterized by compact density, permeability, and subjected to toxicity test with regards to lead concentration. A mechanical test to evaluate the stability is also performed on the three methods of solidification and to prove that microwave zapping method allow to convert into an environmentally stable material for recycling without having to be deposited in a landfill site.

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ID Code: 24645
Item Type: Conference Paper
Keywords: waste usage, lead
Subjects: Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > OTHER BUILT ENVIRONMENT AND DESIGN (129900)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2001 [please consult the author]
Deposited On: 18 Jun 2009 00:38
Last Modified: 17 Jun 2011 12:30

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