Water, Sewage & Effluent May-June 2018 | Page 24

A load of garbage Ninety per cent of South Africa’s waste is disposed of at landfill sites. This amounts to 98-million tonnes of waste deposited across 826 landfills each year. Our reliance on these facilities means that they are quickly running out of capacity. By Johan van den Berg South Africa, like the rest of the world, is bowing under the amount of garbage generated. A nton Bredell, the Western Cape MEC for local government, environmental affairs, and development planning, recently said that a waste crisis will follow the energy and water crises we have already experienced. According to him, this can only be avoided with good planning, sustainable interventions, and an investment in engineering – “because we need to start thinking differently”. I agree; our current thinking needs to change. There is a tendency for consumers to prioritise cost over all other considerations when enlisting the services of a waste management provider. This has led to serious under- 22 pricing in the industry, which is hindering innovation. South Africa’s waste management industry is plagued by unlicensed or unscrupulous providers, who can charge less for services because they operate with little regard for negative environmental, health, or social consequences. The prevalence of these vendors means that larger, compliant companies have to drive down prices to compete. This reduces their ability to invest in alternatives that would promote the development of sustainable cities. The World Commission on Environment and Development (WCED) defines a sustainable city as one that Water Sewage & Effluent May/June 2018 meets the needs of the present without compromising the ability of future generations to meet their own needs. This priority has stimulated the development of several innovative alternatives to traditional waste management practices throughout the world. In Rotterdam, for example, a waste-to- chemistry facility is being built to convert non-recyclable plastics and other mixed wastes into new raw materials, while in Beijing, reverse vending machines incentivise recycling by enabling users to put plastic bottles in and get money out. Global drivers, including pollution, climate change, and resource scarcity,