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Biodegradable pollutants are the waste emerging from a household which can be decomposed by microorganisms. These substances can be easily decomposed by naturally occurring agents such as oxygen, water, ultraviolet rays, microbes, acid rains, etc.
Few examples of these biodegradable pollutants include urine, faecal matter, domestic waste, sewage, agriculture residues, wood, paper, cloth, cattle dung, plants, vegetable stuff, animal bones, leather, wool, etc. … Thus, sewage is a biodegradable pollutant.
Biodegradable pollution is those which are decomposed by natural biological agents. Non- biodegradable pollutants that do not decompose. … They are non – decomposed and non- degraded by microbes. Biodegradable pollutants can be disposed of easily. Non- biodegradable pollutants cannot be disposed of easily.
Degradable pollutants: – These are also called non-persistent pollutants as they can be rapidly decomposed by natural processes. … Non-degradable pollutants: – These are also called persistent pollutants as they cannot be rapidly decomposed by natural processes.
DDT, plastics, polythene, lead vapour, silver foils, etc. are non-biodegradable pollutants.
It is known to you that biodegradable pollutants are materials that can be decomposed by bacteria or other natural organisms whereas non-biodegradable pollutants are those materials which cannot be broken down by natural organisms and act as a source of pollution.
Examples of Biodegradable Materials
Examples of Biodegradable material are:
Things like paper, wood, cloth made up of natural fibre are biodegradable. Things like polythene bags, razors, etc. are non-biodegradable.
a) Bio-Degradable Pollutants- the pollutants which are decomposed by natural processes eg domestic (municipal) sewage. b) Non Bio-degradable Pollutants- The pollutants which don’t decompose naturally or decompose slowly eg. DDT, Aluminium cans.
Different types of pollutants include:
What is the difference between persistent and biodegradable pollution? … Biodegradable Pollutants (Example: food scraps, yard waste) will break down naturally over time. Persistent Pollutants (Example: plastics, Styrofoam, heavy metal waste) do not.
A biodegradable material can be defined as a material which can be decomposed by bacteria or other natural organisms and not be adding to pollution.
DDT is an insecticide which is a non-biodegradable pollutant.
|Biodegradable waste||Non-biodegradable waste|
|They are natural wastes.||They are synthetic wastes.|
|Examples- vegetables wastes, animal excreta||Examples- plastic, polythene|
Ans. Substances which can be decomposed and broken down to simpler substances by micro-organisms acting on it is called bio-degradable and those substances which cannot be acted upon by microorganisms and are not broken down into simpler substances are called non-biodegradable substances. 2.
noun. something that pollutes. any substance, as certain chemicals or waste products, that renders the air, soil, water, or other natural resource harmful or unsuitable for a specific purpose.
Examples of Biodegradable Waste
“Biodegradable” refers to the ability of things to get disintegrated (decomposed) by the action of micro-organisms such as bacteria or fungi biological (with or without oxygen) while getting assimilated into the natural environment.
Like plastics, glasses, metals, organic waste, chemical waste etc. Biodegradable – Substances that are broken down by biological processes (with the help of some bacterias) are said to be biodegradable. Ex- paper, food products, cotton, cow dung, organic waste etc.
Biodegradable substances are organic waste matters that can be broken down into compost or simple organic molecules by biological means. These substances can decompose due to the action of microorganisms. Examples includes fruits, vegetables, human waste, etc.
Give any two ways in which biodegradable substances would affect the environment. Answer: They may produce foul smell during decomposition process. They may produce some harmful gases such as ammonia, methane, carbon dioxide, etc., which can further-cause global warming.
Biodegradable wastes pollute the environment only when they are in excess in the environment. Biodegradable substances affect the environment in the following ways: Biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after composting. This will enhance soil fertility.
Non-biodegradable waste requires replacement and is not environmentally friendly. The plastics that are widely used material are a notable example in almost every area. So, the correct answer is, ‘Both B and C (Wood, grass, fruit-peels, cake and lime juice)’.
Biodegradable and Non Biodegradable materials
|Type of Waste||Approximate Time taken to Degenerate||Nature of Material|
|Cotton cloth||2 to 5 months||Biodegradable|
|Wood||10 to15 years||Biodegradable|
|Woollen clothes||About a year||Biodegradable|
|Tin, aluminium, and other metal cans||100 to 500 years||Non-biodegradable|
Biodegradable wastes are those substances that degrade or break down naturally. Non-biodegradable wastes are those substances that do not degrade easily. Materials like plants, animals, their waste, paper, fruits, vegetables fall under the category of biodegradable substances.
Answer: Biodegradable materials are those which can be degraded by natural processes into some usable forms. Example- Human and animal excreta, Plant products like rubber, paper, wood, leaves, cotton, and wool, Dead remains of living organisms, Kitchen waste, Agricultural waste.
Various Environmental Pollutants and Their Effect on Our Environment
A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
These six pollutants are carbon monoxide, lead, nitrogen oxides, ground-level ozone, particle pollution (often referred to as particulate matter), and sulfur oxides.