Technology has improved the quality of life and given birth to an advanced form of life. This has varying impact on the environment and other lives on the earth. For instance, water bottles made of plastic, which is convenient to use and carry but its disposal is a challenge for nature.
There are lots of waste materials which are degradable and non-degradable. Therefore, categorization and proper disposal of wastes are necessary. Waste materials can be classified as biodegradable and non-biodegradable. Risk and threats related to waste disposals can be easily avoided by the knowledge on types of wastes.
Biodegradable wastes are such waste materials which are and can be degraded by natural factors like microbes (e.g. bacteria, fungi and few more), abiotic elements like temperature, UV, oxygen, etc. Some examples of such wastes are food materials, kitchen wastes and other natural wastes. Microorganisms and other abiotic factors together break down complex substances into simpler organic matters which eventually suspend and fade into soil. The whole process is natural which can be rapid or slow. Therefore the environmental issues and risks caused by biodegradable wastes are low.
But the huge dumping of waste can raise some threats to life sooner or later. To avoid this, some people practice composting. In composting, the biodegradable wastes are dumped into a pit and covered for a period. Due to the action of microbes, they will decompose and will be used as manure for cultivation purpose. This will reduce the amount of waste at landfills.
What is Biodegradable Waste?
Biodegradable waste is a type of waste, typically originating from plant or animal sources, which may be degraded by other living organisms.
Biodegradable waste can be commonly found in municipal solid waste as green waste, food waste, paper waste, and biodegradable plastics. Other biodegradable wastes include human waste, manure, sewage, slaughterhouse waste.
Unlike biodegradable wastes, non-biodegradable cannot be easily handled. Non-biodegradable wastes are those who cannot be decomposed or dissolved by natural agents. They remain on earth for thousands of years without any degradation. Hence the threat caused by them is also more critical. A notable example is the plastics which are a commonly used material in almost every field. To give these plastics a long lasting effect, improved quality plastics are being put to use. This made them more temperature resistant and more durable even after use. Other examples are cans, metals, and chemicals for agricultural and industrial purposes. They are the main causes of air, water and soil pollution and diseases like cancer.
Since non-biodegradable wastes are not eco-friendly, they need to be replaced. As a part of a development of alternatives, scientists have brought forward many ides like biodegradable plastics, etc. They incorporated some biodegradable materials with plastics and made them easily and rapidly degradable. But this is quite an expensive procedure.
What is Non-Biodegradable waste?
Waste which cannot be decomposed by biological process is known as “Non-biodegradable wastes”. Most of the inorganic waste is non-biodegradable. Non-biodegradable wastes which can be recycled are known as “Recyclable waste” and those which cannot be recycled are known as “Non-recyclable waste”.
|1||Degradation process in Biodegradable waste is is rapid||Degradation process in Non-Biodegradable waste is slow|
|2||Biodegradable waste is decomposed and degraded by microbes||Non-Biodegradable waste is cannot be decomposed by microbes|
|3||Biodegradable waste are not accumulated but are used up in short time||Non-Biodegradable waste often accumulate|
|4||Biodegradable waste become part of biogeochemical cycles and give back rapid turn over||Most of Non-Biodegradable waste never enter into Biogeochemical cycles, very slow and toxic|
|5||Biodegradable waste are used to produce energy manure, compost and biogas||Non-Biodegradable waste can be separated and recycled but the process is very expensive|
Effects of Waste Material on Environment
Waste quantities are generally growing in all countries all around the world. Every year billions of tons of waste are generated. These wastes are result of activities in our homes, businesses and industries and disposal of all this large amount is an enormous environmental problem with many dimensions. Municipal, industrial and agricultural solid waste and biomass deposits cause large scale pollution of land and water. The generation of waste causes a loss of materials and energy and increase environmental costs on society for its collection, treatment and disposal. The impacts of landfill and incineration are significant because of their potential for greenhouse gas emissions (methane, carbon dioxide) and transboundary migration of organic micro-pollutants (dioxins and furans) and volatile heavy metals. Problems with waste are as old as human race.
Very soon humans realized that waste are a potential source of diseases and infections, so they dump their waste, which were totally biological, away from their settlements. The first organized municipal dump is in 500 BC outside ancient Athens in Greece, where regulations required waste to be dumped at least a mile from the city limits and covered with soil (Vuk, 1995). Until industrialization of society waste was mostly organic, so they can decompose naturally. Later, mostly because of industrialization, urbanization, and developing of consumer society amount of waste increase very fast
Whether it is biodegradable or non-biodegradable, they harm human life and ruin other organisms and their environment. Thus, a proper treatment of wastes has to be done. This is not only the responsibility of Government, and each can contribute. The three Rs- Recycle, Reuse, and Reduce are simplest steps which can take by each person. This can save energy and other resources as well. Another step is separate biodegradable from non-biodegradable at home and disposes of them separately.
Practise This Question