RIO DE JANEIRO T. J. Oshie USA Jersey , Oct. 10 (Xinhua) -- Brazil's Rio de Janeiro state water utility Cedae has begun work on a new sewage system designed to reduce pollution at the 2016 Olympic sailing venue.
In a statement, Cedae said a network of new underground drains will redirect sewage from the Gloria Marina to a submarine outlet at Ipanema beach in the city's south.
The announcement comes less than two months after Guanabara Bay's waters were criticized by local and international competitors during an Olympic test event.
"Work will start immediately because the most difficult part - the acquisition of special pipes - has already been completed," Cedae president Wagner Victer said.
Backed by Rio's state government, the project has been budgeted at six million US dollars and is expected to be completed by October 2015.
The new system will comprise 1km of "collector" drains ranging from 40 to 70 centimeters in diameter.
It will also boast a pumping station capable of releasing 450 liters of sewage per second.
According to Cedae Ryan Suter USA Jersey , the environmental impact of excavation will be minimized by the use of tunneling shields.
Last month government spokesman Leonardo Espindola said 50 percent of sewage that flows into Guanabara Bay now receives treatment compared to only 15 percent in 2007.
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Rafael Nadal said he was not frightened by the Zika virus as he prepares in Brazil — the center of the viral outbreak — for this week’s Rio Open tournament and the city’s Olympics in less than six months.
Nadal won Olympic gold in the Beijing Olympics, but missed London with an injury.
“I’m doing the things the people have told me,” Nadal said on Monday. “I’m going out at night. I’m not scared. I’m not worried about this.