Do chemicals affect the environment?

Last updated: 8 May 2025

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When it comes to chemicals, many people may associate it with environmental issues such as chemical residues in water, air pollution, and chemical residues in soil. On the other hand, chemicals also play an important role in helping to solve problems and promote the sustainability of the world.

Reduce water and air pollution.

Chemicals used in water purification processes, such as coagulants, pollutant filters, and pollutant removers, play an important role in improving water cleanliness before being used or discharged into natural water sources.

For example, chemicals that help clean water quality.

Calcium Hydroxide (Ca(OH)2
Calcium Hypochlorite (Chlorine)
Poly Aluminum Chloride 30% (PAC)
Polymer (Anion, Cation)

Improve clean energy efficiency.

In the green energy industry, chemicals are used for natural energy production, such as solar cells and high-power batteries, to reduce dependence on fossil fuels.

Support recycling.

The chemicals used in the recycling process help to effectively separate and replace waste such as plastics and metals, thereby reducing landfills.

Examples :

Galvanized steel recycling process
Classification and integration of waste materials from galvanized steel products
Cut into small pieces, and then remove the zinc on the steel plate with sodium hydroxide (NaOH) solution.

Biodegradable products.

At present, environmentally friendly chemicals such as natural biodegradable coatings have been developed to reduce waste and protect the environment in the long term.

Reference : Environmental Management for Sustainability.