With growing public pressure and increasingly stringent environmental legislation, the waste industry is now being called upon to develop more sustainable methods of dealing with refuse. Coupled with moves to reduce reliance on landfill as a disposal route, biological treatment will increasingly become adopted as a standard requirement for the vast majority of putrescible wastes. Biowaste and Biological Waste Treatment examines the present, and likely future, state of biological waste treatment. The book falls naturally into three parts. The first covers the nature of biowaste, waste treatment in general and the regulatory framework which governs it. The second looks at the technologies and approaches available, while the final part examines the various policy questions and local, social and economic factors which affect the implementation of biowaste initiatives.

These collections of the official past papers of the GCE O Level Examinations from the University of Cambridge International Examinations has been developed for students of GCE O level. These books will act as tools for preparation and revision for students. These books have an edited Answer Guide for each paper based on the marks scheme written by CIE Principal