The man can be held for a maximum of 24 hours, excluding sleep breaks, during which he will be subject to a number of ...

Balancing environmental responsibility with operational efficiency is a growing concern for mining operations worldwide, with ...

This sludge shows high concentrations of organic matter, nitrogen and solids forms, which are not typical of sludge ... which may be associated to the aeration of the liquid that occurs in the pumping ...

Two return-activated sludge pumps costing $425,000 will be purchased by the Apache Junction Sewer District. The sewer district board voted 4-0 April 29 to approve the purchase, which includes pump ...