WASTE TYPES MUNICIPAL SOLID WASTE
Sanitary landfill is the controlled on the land, is well suited to the developing countries as a mean of managing the disposal of waste because of the flexibility and relative simplicity of the technology. Sanitary landfilling controls the exposure of the environment and humans to the detrimental effect of solid waste placed on the land. Through Sanitary landfilling, disposal is accomplished in away such that contact between waste and the environment is significantly reduced, and waste are concentrated in a well-defined area. Which result in good control of landfill gas and lechate, and limited access of vector (rodent, flies etc) to the waste.In order to be designated a Sanitary landfill; a disposal site must meet the following three general but basic condition 1) Compaction of Wastes 2) daily covering of the waste (with soil or other material) to remove them from the influence of the outside environment and 3) Control and prevention of negative impact on the public health and on the environment.
Products that can not be accepted at the Landfill
Per city ordinance, the city shall not collect for disposal at its sanitary landfill, nor shall it accept for disposal at its sanitary landfill, the following items:
Infectious waste which has not been rendered innocuous
Waste oil from motor vehicles
Basic Design Principles
A basic landfill is a pit with a protected bottom (to prevent contamination of groundwater) where trash is buried in layers, compacted and covered. Ideally, about 0.5 m of soil should cover the deposited refuse at the end of each day to prevent animals from digging up the waste, flies from breeding and to avoid that odour.
The advanced landfills consist of a liner system at the bottom and the sides; a leachate removal system, which also includes a treatment of the leachate; groundwater monitoring, gas extraction (the gas is flared or used for energy production) and a cap system .The capacity is planned and the site is chosen based on an environmental risk assessment study.
There also types of aerobic or anaerobic bioreactor landfill. Bioreactor technology accelerates the biological decomposition of the organic fraction of the waste (e.g. food, plants, paper, etc.) in a landfill by promoting conditions necessary for the microorganisms that degrade the waste and produce biogas.
Link for secure landfill
http://www.czystemiasto.uml.lodz.pl/files/Christof_Delatter_Belgia1.ppt#267,1, Implementation of the Landfill Directive RTP 25771, Łódź (Poland), 14.12.2007 (lanfill ppt)
Assessment of Methane Flux from (MSW) Landfill Areas of Delhi, India
Assessment of Municipal Solid Waste Efficiency by Leachate Pollution Index
Characterization of Leachate from Municipal Solid Waste (MSW) Landfilling Sites of Ludhiana, India: A Comparative Study
Economic and environmental benefits of landfill gas from municipal solid waste in Malaysia
Flawed Technology of Subtitle D Landfilling of Municipal Solid Waste
Guidelines and Check-list for evaluation of MSW Landfills proposals with Information on existing landfills
Integrated Temperature and Gas Analysis at a Municipal Solid Waste Landfill
Leachate Characterization and Assessment of Water Pollution near Municipal Solid Waste Landfill Site
Methane Emissions from Municipal Solid Waste Landfills
Municipal Solid Waste Landfill Guidelines