Just another "shock" story with no answer, people love to publish this stuff. In the US they collect urine too for medication and skin products.
"Porta-John and Enzymes of America solved that problem. The 14 million gallons flowing annually into Porta-John's privies contain about four-and-a-half pounds of urokinase alone. That's enough to unclog 260,000 coronary arteries." ("Now Urine Business", Hippocrates magazine, May/June 1988)
Read the complete story here under "What modern medicine Science knows about miracle medicine (and isn't telling)".