Chuyển sang chế độ ngoại tuyến với ứng dụng Player FM !
The treasure in our toilets
Manage episode 256879423 series 1314884
Human sewage contains lots of valuable nutrients, so should we be recycling it? One of these nutrients is phosphorus, a key ingredient in fertiliser. We need fertilisers to meet the demands of the planet’s growing population, but there is a limited supply of phosphorus. Once it finds its way into the sea it becomes impossible to recover. And yet we all excrete about half a kilogram of the stuff a year, making cities a potentially rich source of the element. In the Netherlands human sludge is already being processed to recover phosphorus and recycle it into a high-tech fertiliser which will not leach into the environment. Reporter: William Kremer Photo: Getty images
381 tập
Manage episode 256879423 series 1314884
Human sewage contains lots of valuable nutrients, so should we be recycling it? One of these nutrients is phosphorus, a key ingredient in fertiliser. We need fertilisers to meet the demands of the planet’s growing population, but there is a limited supply of phosphorus. Once it finds its way into the sea it becomes impossible to recover. And yet we all excrete about half a kilogram of the stuff a year, making cities a potentially rich source of the element. In the Netherlands human sludge is already being processed to recover phosphorus and recycle it into a high-tech fertiliser which will not leach into the environment. Reporter: William Kremer Photo: Getty images
381 tập
Alla avsnitt
×Chào mừng bạn đến với Player FM!
Player FM đang quét trang web để tìm các podcast chất lượng cao cho bạn thưởng thức ngay bây giờ. Đây là ứng dụng podcast tốt nhất và hoạt động trên Android, iPhone và web. Đăng ký để đồng bộ các theo dõi trên tất cả thiết bị.