- Mobile Sludge Dewatering Unit

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The first KSA mobile sludge dewatering unit was build in 1978 by Simon Moos Maskinfabrik A/S. The principle behind the MOOS KSA system is “volume reduction”. Simon Moos realising that an average tanker load of sludge contained a high percentage of water which was needlessly being transported to the waste water treatmentplant, Simon then decided to develop a system that would take the waste water treatment plant to treat the sludge onsite and the KSA was born. With more than 30 years of experience producing the KSA system along with the input received from our customers around the world we are able to offer the KSA in different variants depending on the customer’s bespoke needs.

Through our knowledge database we give qualified counselling based on documented experiences and the financial advantages you achieve using the KSA system for volume reduction. As an inspiration below we have shown various service jobs where our customers with great advantage use the KSA system.

The core of sludge dewatering is to separate solids and water. The functioning is illustrated in the 4 drawings below. The example is based on emptying of a septic tank. The drawings can analogues be transferred to emptying of grease separators, petrol and oil separators or to many other service jobs.

Relative reduction of environmental substances

When we benchmark the KSA system towards the EU requirements for a wastewater treatment plant, the KSA system performs brilliantly compared to the table mentioned below.

Absolute requirements - reductions of environmental substances


Apart from the reduction requirement the authorities also make demands for absolute values that may not be exceeded. When we as an example look upon the requirements that are made for sludge dewatering of septic tanks you can take paradigm for tender material, “Rørcenteranvisning” 010 of March 2006 as starting point which make the following requirements:

  • The dewatered sludge must have a total dry matter content of min. 15 % (according to DS 204)
  • Suspended matter (SS) max. 150 mg/l
  • Ammonium nitrogen(NH4-N) max. 100 mg/l.

The concentration in the material that has to be treated is of great importance to the fact whether you can observe the requirements that are made for the treatment, due to the fact that it is not possible to treat (reduce) over 100% in one process. From the table mentioned below you can conclude the max. values in inlet in order to live up to the requirements from the Department of Environment. In cases where the contents of environmental substances in the inlet are too high and cannot live up to the requirements from the Department of Environment you can use an additional treatment process, which can be delivered together with the equipment.

Analysis result

Practise documents that the KSA-system lives up to the above-mentioned theory concerning reduction.

Analysis results from emptying of sedimentation tanks with the KSA-system

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