Surname 1. Landfills Student’s Name Subject Date. Surna

Surname 1
Landfills
Student’s Name
Subject
Date

Surname 2
Landfills are a modern form of garbage management. It is engineered to allow the dumping of
the garbage in special protective cells either on the land surface or inside excavations made.
Landfills play a major role in garbage management despite the fact that modern economy
encourages reuse, recycling, and valorization of wastes, (Stamps et al, 2016. Pp. 534). Waste in
the landfills leads to the generation of landfill gases and leachate. When these products are
exposed to animal life, it becomes hazardous and ultimately will affect the environmental quality
we live in. this paper will focus on the different types of landfills, their demerits, and merits as
well as their indexing in deciding the most efficient one.
Types of landfills
Sanitary landfill
Sanitary landfill keeps the garbage in it dry using a base cover and linear. The design of this
landfill prevents water from infiltrating into it which could lead to degradation of the waste,
(Qasim, 2017). The leachate from the wastes collects at the bottom of the design and it is safely
disposed of in a safer mode.
Benefits
Sanitary landfills reduce the odor that is as a result of the rot from the wastes. It also helps in the
prevention of wildfires. It leads in the eradication of breeding ground for rodents and insects.
Sanitary fills are cheap and simple to establish since it does not require garbage separation.
Demerits

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It requires frequent and close attention since it can deteriorate to a normal dump site. It also
requires a large chunk of land for establishment; this will be difficult for some city to get the
land.
Bioreactor landfills
These type of landfill can be classified into three sub-categories; hybrid, aerobic and anaerobic.
Anaerobic landfill, degradation of the waste matter is done using the anaerobic microorganisms
which do not utilize oxygen for respiratory purposes, (Townsend, 2018). The anaerobes convert
the organic wastes to organic acids and finally to methane and carbon IV oxide. Aerobic fills
make use of microorganisms that utilize oxygen for respiration to turn the organic matter to
carbon IV oxide. Hybrid fills utilize the two microorganisms. Bioreactor landfills are
increasingly becoming common as an alternative to the ancient landfilling plans.
Benefits of bioreactor landfill
It is flexible for future expansion as estimates can be made based on the forecast on future waste
production.
Demerits
Traffic from the excavators can lead to noise pollution, air pollution, and visual intrusion. Use of
heavy machinery causes traffic in the area hence delaying normal traffic.
Landfill capping