In China's murky waters, global sewage firms seek rewards

Changzhou

GLOBAL sewage and water treatment firms are eyeing opportunities in an unsavoury place: a growing pile of waste in China, the world's most populous nation.

The country has been for years battling contamination from fertiliser run-offs, heavy metals and untreated sewage. A survey in 2015 showed nearly two-thirds of China's underground water and a third of its surface water was unfit for human contact.