advanced dewatering of sludge by pre-liming before centrifugation – Deshydris® Lime
Deshydris® Lime, pre-liming for sludge with centrifugation, is suited to the dewatering of all type of sludge, fresh or digested from urban wastewater treatment and to any size plant.
Developed to take advantage of the different properties of lime (sanitization, reduction of odors), Deshydris® Lime is used at the end of the sludge treatment process. The biosolids, thanks to their granular structure, can then be used directly as agricultural recovery with an optimized storage.
key figures
- 100% homogenous sludge-time mixture
- Important gain in dryness, up to 50% compared to traditional centrifugation
among references
- Château Thierry (France) – 56,000 PE
- L’île Arrault (Orléans - France) – 100,000 PE
- Vallée de la Dyle - Basse Wavre (Belgium) – 200,000 PE
- Saint-Michel Chef Chef (France) 52,500PE
- Calais (France)120,000 PE
profit
- Biological stability of the produced biosolids (due to very homogeneous sludge-lime mix)
- Granular structure of the final product means that accumulations hold their form
- Lower operating costs (reduce maintenance)
- Security of the operation (no rotary machine)
- Dryness identical to that obtained with post-liming
- Reduced phosphate content in the centrates returned to the plant inlet
documentation
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