From the magazine, Microtunnelling, Rehabilitation, Tunnelling

Danish mobile dewatering saves time, fuel and money

Transport, handling and disposal of sludge are environmental challenges and represent significant costs for municipalities, waste management companies and related industries. The MaskoFlexå¨ unit is a mobile dewatering unit, developed and manufactured in Denmark.

This dewatering technology holds advantages for the recipient, the contractor and the environment. The MaskoFlex may be considered as a mobile treatment plant as the dewatering process is carried out on site and the reject water is immediately returned to the source. The bacterial culture is thus kept intact at the source, which ensures an optimum function septic tank system or a grease trap.

The dewatering system removes water from the sludge by means of polymer, reducing the amount of sludge significantly. Septic sludge is reduced by more than 80 per cent and the system has a proven high efficiency on bio-waste, and grease as well. Customer Donal Kearney of AQS Environmental Solutions Ltd, Ireland said “The JHL dewatering technology ensures continuity throughout the workday and therefore saves time, fuel and money.”

For Salters Cartage in New Zealand, the MaskoFlex has also made a significant difference, “Seeing 25,000 litres of septics go in and 1,000 litres of solids come out enforces our dedication to buy from J. Hvidtved Larsen A/S”, said Ron Salter whose fleet counts several different JHL units.

The dewatered sludge is highly suitable for further treatment and thus easy to handle at disposal sites and treatment plants. In all, the environmental benefits of the MaskoFlex are obvious, as the reduced amount of sludge requires less transport, minimising the CO2 emission, and imposes less or no strain on wastewater treatment plants and disposal sites.

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