Shanghai Daily news

Rubbish will be collected from the World Expo 2010 Shanghai site by a computer-controlled pneumatic conveying system, officials of the Shanghai Public Sanitation Bureau said yesterday.

The system does away with the need for dirty garbage trucks to enter the site. Garbage will be collected in fully enclosed conditions, without the need for manual operation, officials said.

Litter bins, either indoor or outdoor, will be linked by underground pipes. Waste will be compressed to be either recycled, burn or treated in other ways outside the Expo site.

The system will be able to handle 30 to 60 tons of rubbish each day.

The Expo site is estimated to produce about 200 tons of rubbish a day at peak times.

Intelligent cleaning robots and volunteers will also ensure a clean environment in every corner of the site.

Recirculated water will be used to wash roads and flush toilets, officials said.

The Expo expects a total of 70 million visitors, with about 400,000 to 800,000 each day at peak times.

To ensure enough public toilets, officials are setting up permanent fixed toilets, temporary fixed toilets and movable toilets. There will be 6,150 toilets in total.