Green electronics for a sustainable future

Dr. Rajib Saikia (raja199@rediffmail. com) The need for environmentally friendly electronics is evident due to the alarming increase in electronic waste (e-waste), as highlighted in the Global E-waste Monitor 2020 report.

In 2019, a staggering 53. 6 million metric tonnes of e-waste were produced globally, representing a concerning 21% rise in just five years. This upward trend is predicted to nearly double, reaching a daunting 74 million metric tonnes by 2030.

However, despite the value of recoverable materials, only a mere 17. 4% of the e-waste generated in 2019 was collected for recycling, leading to significant environmental and health hazards. Asia led in e-waste generation, contributing a substantial 24.

9 million metric tonnes, followed by the Americas and Europe. The growing buildup of e-waste emphasises the immediate requirement for adopting green practices in the electronics industry to lessen its negative impacts on the environment and public health, paving the way for a more sustainable future. The World Health Organisation (WHO) highlights that e-waste is the world’s fastest-growing solid waste stream.

When e-waste is not recycled properly, especially in informal settings, it releases dangerous substances like lead, posing a particular threat to vulnerable groups such as children and pregnant women. E-waste also contains toxic substances like mercury, which can harm the human brain and coordination, posing considerable health risks. The urgent call for green electronics is clear, emphasising the crucial need to address this growing environmental and health crisis.

Green electronics mark a big change in how we design, make, and get rid of electronic devices to lessen their impact on the environment and support long-term ecological well-being. It’s a complete approach that kicks off right from the design phase. Designers focus on things like how products affect the environment, the materials used, and how they’re made.

By thoroughly examining the entire life cycle of electronic devices, from getting raw materials and manufacturing to transport, use, and eventual disposal, designers can find ways to improve. This understanding helps them reduce harmful effects on the environment and make electronic products more sustainable overall. Choosing materials wisely is a fundamental aspect of green electronics.

Opting for biodegradable or earth-abundant materials in place of rare metals or hazardous chemicals reduces the environmental impact. This not only conserves scarce resources but also ensures that electronic devices are less harmful when they reach the end of their life cycle. Prioritising materials that are easily recyclable further aligns with the principles of sustainability.

The electronics industry usually depends on rare metals and harmful chemicals, causing a lot of harm to the environment. Green electronics aim to reduce this reliance by looking into different materials and ways of making things. Designers are vital in making this change by choosing components that are less harmful, easy to find, and simple to recycle.

This switch helps lessen the damage to nature and people’s health, fitting in with the main aim of making electronics more sustainable. Incorporating advanced manufacturing technologies is another critical component of green electronics. This involves creating electronic components that are smaller, modular, and shape-adjustable.

Such innovations facilitate easier disassembly, repair, and recycling, extending the lifespan of electronic devices. Technologies like 3D printing enable the production of intricate components with minimal material waste, contributing to a more sustainable manufacturing process. Moving to green electronics goes beyond just making them; it includes dealing with different steps in creating electronic products.

Choosing raw materials responsibly means picking suppliers who care about ethics and the environment. This helps reduce how much the environment is affected when getting materials, which also helps save natural resources and ecosystems. Sustainable manufacturing in electronics prioritises energy efficiency, waste reduction, and minimising hazardous substances.

This involves adopting renewable energy, closed-loop systems, and lean manufacturing principles, contributing to a greener production cycle. Optimising practices plays a key role in reducing the industry’s overall environmental impact. Addressing energy efficiency during device usage is crucial for sustainable electronics, with energy-efficient components and systems leading to reduced electricity consumption, benefiting consumers and the environment.

Encouraging responsible usage practices, like turning off devices when not in use, further minimises the environmental impact. An essential element in the journey towards green electronics is considering what happens when a product reaches the end of its life. This encompasses the establishment of robust recycling programmes, motivating people to return their old devices, and implementing effective systems for the proper disposal of electronic waste.

Programmes like Extended Producer Responsibility (EPR) play a key role in encouraging manufacturers to take responsibility for their products, ensuring a comprehensive approach from production to final disposal. The focus on efficient energy use and responsible disposal practices underscores the commitment of sustainable electronics to leave a positive imprint throughout the entire life cycle of electronic devices. Green Information and Communication Technology (ICT) focuses on environmentally friendly practices in the tech industry.

This approach helps decrease carbon emissions, conserve resources, and address electronic waste challenges. Adopting green ICT practices is crucial for a more sustainable and eco-friendly digital future, contributing to a healthier planet. Nanotechnology is a game-changer in making electronics more sustainable with clever solutions on a tiny scale.

When materials are super small, they become better at conducting and being efficient. This helps create gadgets that use less energy, making batteries last longer and reducing overall power needs. Nanotechnology also changes how we make electronics, making them more precise and efficient, using fewer resources, and producing less waste.

These tiny materials can even be designed to be recyclable, fitting in with the idea of sustainable electronics. Essentially, nanotechnology is like a spark that leads to eco-friendly, energy-saving, and super-functional electronic devices, promoting sustainability in the ever-changing world of electronics. Creating green electronics is challenging.

The main problem is getting good recycled materials that meet the standards for making electronics. Creating eco-friendly products might cost more, making it tricky for manufacturers who need to balance making money with taking care of the planet. Ongoing research is driving progress in soft materials for green electronics, signalling a positive shift towards a more advanced technological future.

The escalating e-waste issue underscores the pressing need for change, prompting an industry-wide transformation in design, manufacturing, and disposal practices. Prioritising responsible materials, embracing advanced manufacturing, and incorporating nanotechnology present promising solutions. Despite challenges, the commitment to sustainability is growing, fostering optimism.

By addressing the entire product lifecycle, green electronics aim to harmonise technology with the planet, creating a path for a sustainable future and an era known for being strong and environmentally friendly. .