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Ask the Wastewater Expert

What are operational process controls for overall effective sludge dewatering?

How sludge gets dry
Press filtration using plates or belts and centrifugation separation are common methods for dewatering sludge. Someone recently asked, “What are operational process controls for overall effective sludge dewatering?”
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What are process controls for dissolved oxygen during biological treatment?

Dissolved-oxygen effluent at the secondary clarifier is primarily affected by the dissolved-oxygen control processes during the activated-sludge process.
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What are the parameters of an extended-aeration activated-sludge system?

Even when regular wasting is carried out, a high degree of flow deviation in extended aeration plants will cause loss of solids.
he activated sludge process is the most widely used biological water and wastewater treatment. As is well known, by its means, suspended-growth microorganisms are applied to breakdown wastes. Aeration, the mixing of air and a liquid, is the means used to speed the reactions involved.
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What are the treatment options for landfill leachate?

New contributor to Water/Waste Processing aims to answer readers’ most pressing questions
It’s said the United States has 1,654 landfills, handling more than 250-million tons of trash each year.
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