For pure water
Halogen wars
Water purifier makers in court over advertisement
Oilfree, naturally
Biosurfactants from bacteria help filter wastewater
Big Ben
Bioremedy for arsenic menace
Leafy solution
Foliage helps check fluorosis
Electric barrier
Water purifier that kills 98 per cent bacteria, fast
Australian town says no to drinking recycled sewage
Desalination made easy
Graphite and copper can make brackish water potable
Recycling resolve
Contaminated cocktail
Toilet training
At Nacka nature school in Sweden
Peel potential
Bananas can filter heavy metals from water
All in a day's work
Grand Hyatt leads by example on wastewater recycling
No simple solution
California's dilemma: clean air or clean water
Purification project
Still stressed
In court
Sponge it clean
Arsenic traps
Oxen power
Unique way to desalinate water
A way to chew filth
A novel method to tackle sewage, and so, pollution