A new filter reduces effluents from diary industries and also produces biogass

Sulabh International, which has designed and installed over 2,000 public lavatories in slums and resettlement colonies, has just developed a lavatory design that recycles compost to generate biogas

MILK PRODUCERS in Tamil Nadu's Nilgiri district have designed a portable, insulated biogas plant that produces enough gas for three hours of cooking per day. The one cubic metre capacity

Both government and voluntary agencies are helping to spread biogas technology, which can provide clean fuel and enriched manure as well as improve sanitation standards.