Mining company Outokumpu dumped 450 cubic meters of pig slurry into the waste water near the closed Kangasjarvi mine, which once produced zinc, copper and sulfur.

• 为了治理一个被附近旧矿井所污染的池塘，芬兰工程师日前向池水中倾注了大量的猪粪浆。这样做是因为猪粪浆中包含的细菌能将池水中的金属物质清理干净。