5 Major ways of hazardous waste disposal

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Hazardous waste disposal
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Hazardous waste are waste which has a potential negative effect on the health of the public or the environment.

Get more information on hazardous waste here

Here we will be considering the hazardous waste disposal; how can we get rid if these toxic, harmful and and poisonous waste.

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Hazardous waste disposal regulations

Hazardous waste disposal is govern by the following regulations:

This regulations serves as a guide in the disposal of hazardous waste of any type.

Read Also: What is COSHH – What is the full meaning of COSHH

5 Major ways of hazardous waste disposal

There are major ways were hazardous waste disposal can be done, these ways include:

  1. Recycling: 

Some hazardous wastes can be recycled into new products.

It is the process of collecting and processing materials that would otherwise be harmful and should be discarded and turning them into new products. Recycling can benefit both the community and the environment.

The recycling process involves mainly collection and processing of the hazardous waste and the manufacturing of non-hazardous waste from the hazardous waste.

2. Incineration:

This is a process where hazardous waste is destroyed by exposing it to high temperature using incinerators. 
During the process of incineration, the waste material that is treated is converted in to IBM, gases, particles and heat. These products are later used for generation of electricity.

3. Landfill

In cases of hazardous waste, a landfill is defined as a disposal facility or part of a facility where hazardous waste is placed or on land and which is not a pile, a land treatment facility, a surface impoundment, an underground injection well, a salt dome formation, a salt bed formation, an underground mine, a cave, or a corrective action management unit (40 CFR 260.10)

Read Also: Environmental Health and Safety (EHS)

4. Pyrolysis

This is the thermal decomposition of materials at elevated temperatures in an inert atmosphere. In this treatment, material is exposed to high temperature, and in the absence of oxygen goes through chemical and physical separation into different molecules.

 The process typically occurs at temperatures above 430°C (800°F) and under pressure. It simultaneously involves the change of physical phase and chemical composition, and is an irreversible process.

There are three (3) types of pyrolysis – Slow pyrolysis, Flash pyrolysis and Fast pyrolysis.

5. Underground injection:

This is an act of placing hazardous waste deep underground into porous rock formations, such as sandstone or limestone, or into or below the shallow soil layer. Though this process is not highly recommended because it could contaminate the soil water,thereby posing a negative effect on the plants.

Read Also: Confine space entry procedures that works

 

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