Wastewater and environmental operators handle sewage sludge, biosolids, digestate, ETP and industrial sludge, oily residues and ZLD concentrates. Most of it leaves the dewatering press as a wet cake that is largely water, and disposal is charged by the wet tonne. Drying shrinks that tonnage, stabilises the residue and opens fuel or reuse outlets. GEM matches each sludge to a mesh belt, paddle or thin film dryer after a pilot trial on your cake.
For wastewater & environmental, GEM dries 24 materials across 5 application areas. The dryers specified most often are the Paddle Dryer, Mesh Belt Dryer (Meshotherm) and Agitated Thin Film Dryer, chosen per material after a pilot trial.
GEM dries municipal, industrial and hazardous sludges, effluent concentrates and sorted waste fractions. Each material below links to the dryer types suited to it.
Each material page names the recommended dryer and the alternatives. The machines below are the ones specified most often across the 24 materials for this industry.
Sludge behaviour varies with polymer dose, digestion and source. We dry a sample of your actual cake at our Dried & Tested facility before sizing the dryer, so drying rates are measured rather than assumed.
Oily, hazardous and solvent-bearing sludges can be dried in enclosed paddle or thin film dryers, keeping vapours contained and routing exhaust to condensation or treatment.
Extruded municipal sludge dried on a Meshotherm belt runs at moderate air temperatures, which allows recovered heat from engines, boilers or flue gas to carry much of the load.
We trial your material in our pilot facility before any equipment decision, then size the dryer from real data.
Describe it in the form, or message an engineer directly.
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