Subject Group of Built Environment
3410
Solid Waste Disposal Engineering
Summer
Description and rationale: Landfill is the last stage of a solid waste management system. Not like other waste
management technology, i.e. incineration, it takes long time to stabilize waste in a landfill. Therefore, its impact
may extend to future generation if enough management isn’t taken. So, landfill should be constructed and
operated properly so as to prevent environmental issue caused by leachate or gas in a long-term as well as in a
short term. For this, understanding of various phenomena arising in landfill is indispensable. In addition having
sufficient skills for designing each facility installed in landfill based on phenomenological understanding is
important.
This lecture covers not only design aspects of landfill but also various phenomena arising in landfill such as
biological degradation of waste, behaviour of heavy metals, leachate and gas migration, solute transport etc.
Furthermore, history of technological development and current strategies taken in Japan and other countries will
be provided.
Keywords: sanitary landfill, design of landfill, leachate, liner, biodegradation, heavy metal
Pre-requisite: none
Expected students: master and doctoral
Instructor: Assoc Prof. Yasumasa TOJO (tojo@eng.hokudai.ac.jp)
Course outline:
(1) Introduction
(2) Concept and structure of landfill
(3) History of landfill technology, Outline of landfill sites
(4) Landfill classification and kinds of landfills by location and function
(5) Liner system & Leachate collection
(6) Leachate treatment
(7) Gas collection system
(8) Biodegradation of waste (1 aerobic degradation)
(9) Biodegradation of waste (2 anaerobic degradation)
(10) Behaviour of heavy metal in landfill I
(11) Behaviour of heavy metal in landfill II
(12) Water movement phenomena in landfill
(13) Macro water balance in landfills and estimation of leachate generation
(14) Gas generation and movement
(13) Heat transfer in waste layer
(14) Solute transport
(15) Waste stabilization by semi-aerobic landfill structure
Grading: attendance (50%), intermediate Report (25%), final Report (25%)
Textbooks and references: text written by the lecturer is used.
1/2010