The stench of stale liquor lingers in the air at a dusty recycling yard in Hong Kong’s Lung Kwu Tan in the New Territories. Tonnes of waste glass are being pulverised into grains of sand by high-frequency shock waves, and piled neatly into high mounds.Delvin Cheng Chung-wang, project manager at Baguio, which operates the plant, said their biggest challenge was in sifting through waste glass and sorting processable items from others.“People think anything that looks like glass is glass, so there…
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