8.7 Benefits of Waste Management
183
sanitary landfills are less odor, no open burning, less costs, and accommodation
for large waste quantities. The major disadvantages are more noise pollution, more
dust, groundwater pollution, space issues, emission of greenhouse gases, and slow
decomposition.
On the other hand, bioreactor landfills are the latest innovations obtained from
recent technological research. They make use of superior microbiological processes
for hastening waste decomposition (Reddy et al. 2017). Liquid is continuously
added through the re-circulation of the landfill leachate to maintain moisture for
microbial digestion. In the case of inadequate leachate, liquid waste such as sewage
sludge is often deployed. Regarding controlled dumps, they have various similarities
to sanitary landfills and have many characteristics of a sanitary landfill but may lack
one or two features.
8.6.2 Biological Waste Treatment
Composting is a standard method of waste disposal and treatment. It is an aerobic
decomposition method that uses microorganisms and invertebrates to consume and
breakdown the waste product. The most common composting techniques are vermin
composting, in-vessel composting, and windrow composting. The concept behind
windrow composting is that compost is produced through piling of biodegradable
waste or organic matter, including crop residues and animal manure in long
rows or windrows. Similarly, anaerobic digestion utilizes biological processes for
decomposing organic materials (Antonie 2017). However, it uses an environment
that is devoid of bacteria and oxygen to decompose waste.
Expand on anaerobic digestion as a waste treatment method. Is it effective for
waste treatment?
8.7 Benefits of Waste Management
Waste should not be disposed of without considering the future. Consistent and
rational waste management practices are crucial for reaping various benefits. These
benefits are classified as social, economic, environmental, and inter-generational
equity.
183
sanitary landfills are less odor, no open burning, less costs, and accommodation
for large waste quantities. The major disadvantages are more noise pollution, more
dust, groundwater pollution, space issues, emission of greenhouse gases, and slow
decomposition.
On the other hand, bioreactor landfills are the latest innovations obtained from
recent technological research. They make use of superior microbiological processes
for hastening waste decomposition (Reddy et al. 2017). Liquid is continuously
added through the re-circulation of the landfill leachate to maintain moisture for
microbial digestion. In the case of inadequate leachate, liquid waste such as sewage
sludge is often deployed. Regarding controlled dumps, they have various similarities
to sanitary landfills and have many characteristics of a sanitary landfill but may lack
one or two features.
8.6.2 Biological Waste Treatment
Composting is a standard method of waste disposal and treatment. It is an aerobic
decomposition method that uses microorganisms and invertebrates to consume and
breakdown the waste product. The most common composting techniques are vermin
composting, in-vessel composting, and windrow composting. The concept behind
windrow composting is that compost is produced through piling of biodegradable
waste or organic matter, including crop residues and animal manure in long
rows or windrows. Similarly, anaerobic digestion utilizes biological processes for
decomposing organic materials (Antonie 2017). However, it uses an environment
that is devoid of bacteria and oxygen to decompose waste.
Expand on anaerobic digestion as a waste treatment method. Is it effective for
waste treatment?
8.7 Benefits of Waste Management
Waste should not be disposed of without considering the future. Consistent and
rational waste management practices are crucial for reaping various benefits. These
benefits are classified as social, economic, environmental, and inter-generational
equity.