Questão número 637279

As questões de números 8 e 9 referem-se ao texto que segue.

The method described in the text

• A.

  disposes of the sludge by accumulating it in specific tanks.

• B.

  proposes landfilling as the only cost-effective process to dispose of the sludge.

• C.

  achieves a non-pollutant sludge as its final product.

• D.

  recovers up to 92% of the oil present in the sludge processed.

• E.

  solves the sludge problem by collecting all sludges in one single tank.