Finnish engineers have poured pig manure into a contaminated pond next to an old mine, saying the bacteria in the slurry will clean up metals in the water.
Finnish engineers have poured pig manure into a contaminated pond next to an old mine, saying the bacteria in the slurry will clean up metals in the water.
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。