Pretoria on MyPR: Polystyrene Industry Steps Up To Help Clean And Heal The Hennop River: Bags of polystyrene collected for recycling_Hennops Revival The poly-island is a big net that stretches over the river to collect waste and litter from the water as it passes through. At 3 meters high, the poly-island is so big that a person can easily stand on it. According to Tarryn Johnston, founder of Hennops Revival, the rain has dramatically increased the water flow, making the poly-island very …
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