Sound method...

...of cleansing the membranes used in filtration of polluted water

Why ozonization to treat drinking water can be dangerous

A brush of hair

Can help treat oily wastewater

Nano arsenic mop

Alumina nanoparticles can better adsorb the heavy metal

Sweet treatment

A cheaper method uses glucose and enzymes to filter water

Wasting no water

Industries in Bangalore to get recycled water

Clean option

Lemony clean water

Lime juice, sunlight can purify water in 30 minutes

Activated carbon removes pesticide

Clean-up act

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

Desalination made easy

Graphite and copper can make brackish water potable

Recycling resolve

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

No passing through

New carbon-based nanotube filter cleans drinking water, petroleum too

Still stressed