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Performance and applications of dewatering technologies
References 46 47 50 31 51 48 49
Notable outcomes 7 times faster than International Institute of Tropical Agriculture, with 10 – 20% more toxins removed Diminishing returns of above 2.32 MPa Shrinkage at the macro-mesopore level; reduction in porosity 30–35% energy saving; regression model R 2 =88.47% Corrected soil moisture interference in SOC models Increased throughput (87 kg/h), decreased energy consumption (−19.13%) 90% cost savings; 0 emissions
Energy use 7.5 HP motor at 40% efficiency N/A N/A <150 kWh/m 3 N/A 183 kJ/kg No fuel
Moisture reduction/final moisture 80% moisture reduced to 29.85% for fine materials, 65% moisture reduced to 33.6% for coarse materials, in 33.72 min Maximum 7.4% reduction achieved using 0.3 mm screen Final pore volume below 0.2 cm 3 /g achieved 83% water removed (up to 66% TS); 87% TS with drying Indirect improvement in SOC accuracy Final moisture content: 25.35% N/A (Discharge rate: 0.27 L/s)
parameters 100 N/mm 2 principal 1182 kN/mm 0.58 – 2.91 200°C, 5 MPa 80°C, 300 – 3000 kPa Wavelengths: 1400 and 1900 nm 70 L/h, 10 rpm, 90 kPa Reciprocating solar-ready Abbreviations: HP: Horsepower; MTE: Mechanical thermal expression; SOC: Soil organic carbon; TMAD: Thermal-mechanical assisted dewatering; TS: Total solid content;
Key stress, torque MPa pump,
Technology type Screw press (vertical, dual-squeeze) Compression with replaceable screens Mechanical thermal dewatering Thermal-mechanical assisted dewatering Spectroscopic dewatering correction Combined sieving-drum-vacuum Manual piston-pump
Table 1. Analysis of various dewatering machines
Material processed Cassava pulp Digestate Low-rank coal Alfalfa biomass Moist soil Grain slurry Blasthole water (mine) WATDM: Water-absorption-trough dewatering machine.
Machine/study Vertical double squeeze machine (2009, Nigeria) EDZ 20 (2016, Poland) MTE (2007, Europe) TMAD (2011, France) WATDM (2021, China) Milling-sieving-dewatering (2021, Nigeria) Manual fuel-free machine (2021, Nigeria)
Volume 22 Issue 5 (2025) 61 doi: 10.36922/AJWEP025130093
