The well-being of humanity, environment and functioning of the economy, ultimately depends upon the responsible management of the natural resources of the planet. However, these days, people are consuming far more natural resources than what the planet can sustainably provide. In fact, many of the Earth’s ecosystems are nearing critical tipping points of depletion or irreversible change, pushed by high population growth and economic development.
Further, issues like industrial expansion, extensive land use, etc., are leading to global warming, pollution and waste, which are both toxic and hazardous. So, it is needed for the industries and individuals to awaken and take care of their consumption of resources, save as much as they can and adopt the 3Rs – Reduce, Reuse and Recycle – to decrease pollution at all levels.
Decoding the 3Rs
Reduce: Creating more value with less
If we consume all natural resources, then our future will not be healthy. The environmental imbalances will seriously disturb the ecology, economy, ecosystems and life cycles. Thus, unplanned usage or consumption of natural resources like land, water, air, minerals, trees, energy sources etc., should be stopped if our future generations have to use the same planet, on which we live today.
All sectors like agriculture, power, land-use, and construction, industrial and technological, have to step in and make the right efforts. From turning the water taps off at home and offices to producing new paper, glass and metal products from recycled materials, 70 to 90 percent of the energy consumption and pollution can be reduced.
Reuse to lift off the burden
While reducing is necessary, reusing the resources is also equally important. Scarce fresh water resources and rapidly deteriorating quality of water resources due to discharge of untreated or non-compliant treated effluents are compelling industries across the country to adopt effective technologies for treating wastewater for reuse.
With appropriate process design and use of advanced technologies, wastewater can be reused for industrial process, non-potable domestic applications and indirect potable purposes.
Recycle and recover valuable resources
Recycling is the key for carbon footprint reduction and pollution control. Recycling reduces carbon emissions by reducing the need for raw materials, which generally require more energy to produce and transport. In the case of plastics, recycled plastics in end applications can displace virgin plastics and save an average of two tonne of carbon dioxide for every tonne of plastics recycled. Further, recycling Polyethylene Terephthalate saves about 50 per cent of energy. Recycling also helps in reducing waste in landfill and the consequent methane emissions. Hence, many industries are going in for advanced recycling methods and technologies.
Here, recycling at source as a concept is also important to consider. In this method, recycling is done at the actual process and not at the end of the treatment. As a result, no additional waste is generated and the same effluent can be used instead of fresh reactants multiple times. The major advantage of the tool is that it reduces the effluent load to the water bodies.
Just like recycling of plastics is necessary, recycling of water is of utmost importance too. Water recycling is not just an option, but a must for all the industries as availability of potable water is becoming scarce for human consumption and agricultural purposes. Thus, industries are increasingly adopting practices like Zero Liquid Discharge (ZLD), which strives to employ the most advanced treatment technologies to recycle and reclaim virtually almost all the produced wastewater. The growing importance of ZLD is due to environmental constraints leading to water demand, hazardous effects such as global warming and ozone depletion.
Time to conserve and create
The United Nations estimates that the population of the planet will grow to 9.2 billion by 2050. Thus, the efficient and productive industry engaged in truly sustainable practices is essential to meet the incredible increase in demand for goods and resources that this growth implies.
Hence, it is the right time that the industries as well as the individuals should get together, and act. It is important for all to learn to adapt the 3Rs, which can help in achieving sustainability by reducing pollution to a large extent.
What you can do
It is not all left to the industries to take steps for reducing pollution. While their actions may lead to pollution, you are a culprit too. So, every individual has to do their bit to reduce pollution. We agree that recycling at home is not possible in most cases, but how about reducing and reusing water and plastics. Here are 10 simple steps by which you can do so: