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Smart new technologies play vital role in plastic pollution crisis

EUdebates Team by EUdebates Team
20/12/2020
in Environment & Energy
Reading Time: 4 mins read
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From source to sea, waters are contaminated by a plastics scourge. Innovative smart technologies play key role to tackle plastic pollution. A new study by the UN Environment Programme (UNEP) and the International Water Management Institute (IWMI) offers a number of technological solutions aimed at tackling one of the world’s most pressing issues.

Approximately 8 million metric tonnes of plastic litter flow to the ocean annually. Only 9% of plastic waste ever produced has been recycled. A large percentage of the rest ends up in landfills, dumps and the environment, often findings its way to rivers, lakes and oceans through runoff, leakage, flushing of disposable wipes and hygiene products.

Can you drink the tap water in Europe? Is it safe?

Microplastics threaten Global Waters

Another major issue relates to microplastics. Those plastics that are smaller than 5 millimeters, and that pose increasing environmental, economic and health hazards. Sometimes these are intentionally added to products, for example in cosmetics, for seed coatings, paint, washing powders and other applications. They are also generated from wear and tear, through the production of synthetic textiles and tyre usage. In addition, discarded plastics break down into these smaller particles through natural weathering processes. Microplastics can enter water bodies through different pathways, including atmospheric deposition, run-off from land, roads and through municipal wastewater.

Researchers work hard to both identify the scale of the threat of plastics to the health of humans, and ecosystems, along with solutions to tackle it. Water pollution by plastics and microplastics: a review of technical solutions from source to sea. It explores a set of innovative tech solutions for use in various scenarios.

Debate: Plastic pollution, Oceans and Climate Change

Among these potential technologies include:

  • Introducing debris-cleanup boats, debris sweepers and sea-bins to remove plastics and other wastes carried into water bodies;
  • Protecting large bodies of water by introducing wetlands along coastlines;
  • Secondary and tertiary wastewater treatment which relies on membrane filtration to prevent microplastics entering rivers and lakes;
  • Advanced coagulation technology to make water contaminated with microplastics drinkable;
  • Promoting sustainable waste management practices to reduce plastic leakage.

A key principle of this work is preventing untreated wastewater. It goes often with plastics and microplastics, entering the environment in the first place. The study details financially sustainable waste recycling that is socially and legally acceptable, and environmentally friendly.

Urban Waste Management

“Waste management in most cities of developing countries is an expensive, labor-intensive and low-margin business, which explains why a large share of the generated waste is inadequately managed. The wastewater coming from urban residential, industrial and commercial settings is full of contaminants including plastics, microplastics and other debris,” said Dr. Mark Smith, Director General of IWMI. “It is very important to reduce and remove plastic before it enters into wastewater treatment plants or freshwater bodies”.

Plastic Waste: Zero Waste in Europe?

The study has a toolkit and catalogue. It analyzes the most relevant technologies to improve current waste and wastewater management practices. It presents both the pros and cons of applying specific solutions to mitigate levels of plastic pollution from source to sea.

“To effectively tackle the crisis of plastic pollution in our freshwater and marine ecosystems, we need innovative technologies that will serve us for years to come. We need to look at how we address waste production, waste management as well as the treatment of wastewater and run-off holistically, at source, and across sectors – a key part of building healthier, more sustainable societies,” said Inger Andersen, Executive Director of UNEP. “The technologies highlighted in this study should be supported by legislation, finance and awareness in order to lead to real change on the ground”.

Water pollution by plastics

Decision makers, experts and relevant stakeholders need to come together. They need to agree on the desired water quality in their local context and a sustainable combination of solutions.

Water pollution by plastics and microplastics: a review of technical solutions from source to sea is based on research funds. Support comes from the United Nations Environment Programme (UNEP) and the Water, Land and Ecosystem research program of the CGIAR.”

What is Microplastics?

Microplastics are very small pieces of plastic that pollute the environment. Microplastics are not a specific kind of plastic, but rather any type of plastic fragment that is less than 5 mm in length according to the U.S. National Oceanic and Atmospheric Administration (NOAA) and the European Chemicals Agency. They enter natural ecosystems from a variety of sources, including cosmetics, clothing, and industrial processes.

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Tags: Circular EconomyEarthEnvironmentFoodFood WasteHuman HealthInnovationInnovationsOceanOceansPlanetplastic pollutionplastic pollution coalitionPollutionPublic HealthResearchResearch & DevelopmentSafe WaterseaTechnologiesTechnologywastewhales and plastic pollution
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