Question

Write an essay on Waste Management

Answer 1

$\huge\bold\star\red {Mr Phenomenal}\star$

The activities involved in order to dispose off waste to its final disposal are what we call waste management. Generation of waste is an important step of almost every industrial activity and in fact, a considerable amount of waste is generated from our homes every day. However, how we dispose it off is something which has larger concerns. The students must educate themselves on the significance of waste management and the technologies available today in order to do it effectively. Hence we have prepared some long essays for students which shall not prove to be informative but shall be helpful for students irrespective of their classes for their examinations as well.

Answer 2

Types of Wastes: Wastes are classified into different types based on the physical appearance. Liquid wastes are liquid in nature, solid wastes are solid and organic wastes are organic in nature. Waste management for liquid wastes is different from solid and organic wastes. Wastes are also classified based on the degree of harm like hospital wastes are classified as infectious, highly infectious and general wastes.   Solid, liquid, and organic wastes are produced starting from homes to business establishments and industries.

Methods of Waste Management: The following are the common methods of waste management:

• Incineration:  Under this method of waste management, public solid wastes get buried for converting them into heat, residue, steam, ash, and gases. It decreases the amount of solid waste by around 31% of the actual quantity.

• Landfills:  Discarding garbage and waste inside the landfills is one of the most known methods of waste management. Under this method,  the problems like dangers and odor of the garbage are eradicated. The compost is buried on the locations of the landfill.

• Waste Minimization:  It is the simplest way of waste management that helps in creating less amount of waste. The declination of waste can be performed by anybody by decreasing the waste formation and reprocessing and recycling the old resources. The usage of ecological products and decreasing the usage of paper, plastic, etc., is essential. The public contribution has a straight influence on the system of waste management.

• Waste to Energy:  Under this procedure of waste management, non-biodegradable wastage is transformed into the sources of energy like fuel, heat, or electricity. All of these are renewable energy sources since the non-biodegradable wastage might be utilized for creating energy repeatedly.

• Pyrolysis and Gasification:  These two techniques of waste management are utilized for decomposing the organic leftover materials by divulging it to little quantity of oxygen and elevated the temperature. There is no usage of oxygen in the procedure of pyrolysis and a very small amount of oxygen is utilized in the procedure of gasification.

Advantages of Waste Management:

1. Waste management helps in keeping the environment very clean: When we carry out the management of waste, we help in keeping our environment very clean and all of us as persons should do our very best to keep our immediate and non-immediate environment clean in order to achieve the ultimate goal of a clean environment. A unit of waste management collects waste materials and garbage from different places in the public and then transport the collected waste materials and garbage to sites of landfill and other forms of disposal systems and units that are used for its disposal.
2. Waste management conserves energy: Recycling is a very important part of waste management. The recycling of all the various products and items helps in the reduction of use of raw materials for the creation of new items and products. Energy conservation also occurs during recycling since the recycling of goods uses less energy than the creation of entirely new goods from raw materials.
3. Waste management helps in the reduction of air pollution: Global warming and air pollution can be reduced through the help of waste management. The intensity and the levels of gases like methane and carbon dioxide that are emitted and released from waste into the atmosphere are reduced through the help of waste management.
4. Employment opportunities are generated through waste management:  A large quantity of manpower and skill is needed for the various processes involved in waste management. Starting with the collection of the waste to where it is disposed, a lot of job opportunities are created through the management of waste.
5. Waste management encourages sustainability in resources use: The process and system of the management of waste highly minimises the use of resources and energy. The use and employment of resources in an efficient way is encouraged by the life-cycle concept of waste management.

Disadvantages of Waste Management:

1. Finance: Waste management on a large can require a lot of man power and technology to be carried out successfully. There is the need for planning and implementation of the many processes and activities involved in the management of waste. Also, a lot of varieties of waste need to managed and there is the need for different methods of waste management for the different types of wastes; this means a higher cost for the management of waste.
2. Health of Workers: The management of wastes and all of the processes involved can lead to a number of fungal and bacterial infections and diseases on the part of those working in the waste management sector.