Black Waters and Landia end bad odours at the paper mill

A new aeration system has rescued a paper mill in El Salvador that was on the brink of receiving fines for causing major odour issues.
Changes to environmental regulations had put the company into a crisis situation, despite the fact that they had already installed four 30HP surface aerators in their aeration tank in an attempt to quell the increasingly bad odor problems.
With the authorities set to take serious punitive measures, the paper mill called in leading wastewater treatment business, Black Waters to see if they could bring about a solution.
“This was a major challenge,” said Roberto Escalante, principal of Black Waters.
“Nobody in our industry particularly relishes working with a slanted floor rectangular tank (1,000m3), but I can tell you that the twisted face of the paper mill’s CEO was in far more pain than mine!
“It was primitive; in a bad way, resulting in the possibility of substantial fines that caught the paper mill completely off guard,” he added.
“The odours were awful, so we went straight into action with a sludge sampler to see what was going on, in order to establish a proper profile.”
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