Waste to energy – a clean solution to a growing problem

The sprawling city of Shenzhen in northern China has a population of over 20 million people and creates around 15,000 metric tons of waste every day. No surprise, perhaps, that it’s the site of what will be, when it’s operational, the world’s largest waste-to-energy plantto date.

Waste-to-energy technology turns urban waste into fuel. Incineration of waste products generates heat, which is used to drive a turbine and so generate electricity. While it’s true that the process of incineration causes CO2 emissions, the architects of the Shenzhen East Waste-to-Energy Plant claim this occurs at just half the level of an average landfill site.

The enormous plant is built in an innovative circular design and utilizes advanced waste incineration and power generation technology. When operational, in 2020, it will be able to process 5,000 metric tons of waste per day and – as a by-product – is expected to generate 50 million kWh of electricity per year. It is a clean solution to a growing problem.

The plant will have a secondary function as a place of education. Entry will be via a landscaped park that leads to a visitors’ center, giving an overview of the machinery. A guided tour via a circular walkway will explain each process, and ultimately lead up to the roof, from where a spectacular view of the city and the surrounding landscape can be enjoyed.

World Bank figures indicate that China generates more waste than any other country, but many countries worldwide are having to tackle similar challenges. UN predictions put the world’s population at 9.8 billion people by 2050, and so technology that efficiently removes urban waste while generating energy – such as our own BT Advanced Gasification solution– can be desirable to investors. Interest in such technologies is growing, and the World Energy Council estimates that the global market will be worth in the region of $40 billion by 2023.

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