eneral Courses Given in English 英语讲授通识类课程 Sustainable Development Practice in China China Today "当代中国"系列课程 Basic information on SWM Niu Dongjie (niudongjie@tongji.edu.cn)
Niu Dongjie (niudongjie@tongji.edu.cn) Sustainable Development Practice in China
Table of Contents What are wastes and ISWMS? ·Landfilling ·Incineration 。Composting 。Anaerobic digestion
Table of Contents • What are wastes and ISWMS? • Landfilling • Incineration • Composting • Anaerobic digestion
What are Wastes? Comprises all the wastes arising from human and animal activities that are normally solid and that are discarded as useless or unwanted. Basel Convention Definition of Wastes "substances or objects which are disposed of or are intended to be disposed of or are required to be disposed of by the provisions of the law Disposal means "any operation which may lead to resource recovery,recycling, reclamation,direct re-use or alternative uses(Annex IVB of the Basel convention) 3
3 What are Wastes? Comprises all the wastes arising from human and animal activities that are normally solid and that are discarded as useless or unwanted. Basel Convention Definition of Wastes “substances or objects which are disposed of or are intended to be disposed of or are required to be disposed of by the provisions of the law” Disposal means “any operation which may lead to resource recovery, recycling, reclamation, direct re‐use or alternative uses (Annex IVB of the Basel convention)
Some important features Waste contains the same materials as are found in useful products Only differs from useful materials by its lack of value The lack of value can be related with mixed and unknown composition of the waste
Some important features • Waste contains the same materials as are found in useful products • Only differs from useful materials by its lack of value • The lack of value can be related with mixed and unknown composition of the waste
Classification of waste ·by physical state By original use(Packaging,food,etc) Physical property (combustible,compostable, recyclable) 。Origin 。Safety level
Classification of waste • by physical state • By original use (Packaging, food, etc) • Physical property (combustible, compostable, recyclable) • Origin • Safety level