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Maine legislators order wastewater plants to test for PFAS in biosolids

Municipal wastewater treatment facilities in the U.S. state of Maine are under pressure to meet a May 7 deadline that forces them to test...
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Lystek wins multi-year biosolids contract with the City of Guelph

Lystek International announced that it had formally executed a multi-year (up to 10) biosolids management contract with the City of Guelph, Ontario, on October...
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Biosolids digester replacement project delivers savings and helps sustainability

The process hydrolyses dewatered biosolids, using low-temperature steam, high-speed shearing and alkali, in an enclosed, low-pressure reactor.

London’s Greenway WWTP chooses centrifuges for sludge dewatering

London Ontario’s Greenway wastewater treatment plant takes in sludge from six other city treatment plants. Sludge dewatering is achieved using centrifuges.

Evaluating the performance of new fluid bed incinerators

The Duffin Creek Water Pollution Control Plant (WPCP) in Pickering, Ontario, is jointly owned by the Regional Municipalities of York and Durham.

New device reduces polymer use and controls struvite during sludge dewatering

HydroFLOW technology is being used in the wastewater sector to control struvite and other scale forming issues during sludge dewatering processes.
manure-injectors

Injecting manure into soil reduces estrogen runoff loads

A new study shows that applying manure to crop fields by means of shallow disk injection into the soil, rather than traditional surface broadcast,...

Biochar shows benefits as manure lagoon cover

Manure can be a useful fertilizer, returning valued nitrogen, phosphorus and potassium to the soil for plant growth. But manure has problems. Odour offensiveness,...
Primary digesters

Analyzing digester heating requirements

An analysis of Ashbridges Bay Wastewater Treatment Plant led to some conclusions that may be used for digester heating design and operation purposes.
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Dry phase anaerobic digestion of organic waste: Resource recovery

If energy recovery is part of a organics recycling strategy, two well-proven routes are available: thermal processes and anaerobic digestion .

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