MODEL OF DEHYDRATOR – MDQ-354 C
START OF OPERATION – 2018 August
Issue
The customer had an interest in reducing sludge disposal costs in their municipal wastewater treatment plant by obtaining lower maintenance costs and lower energy consumption. The plant treats wastewater from nearby residential areas and numerous local restaurants and generates about 120 gallons of aerobically digested sludge from their digesters per minute.
Solution
On-site pilot tests were carried out, using mobile dewatering unit MDQ-201, to find the best dewatering technology. According to the test results Esmil offered sludge dewatering complex based on Multidisc Screw Press Dehydrator MDQ-354 C. The complex includes – macerator, polymer feeder and service platform.
| Type of sludge | aerobically stabilized excess sludge |
| Operating time | 9-10 h/day, daily |
| Initial sludge capacity | 20 m3/h 310 kg DS/h |
| Inlet sludge DS content | 1.3-1.5 % |
| Cake DS content | 16-18 % |
| Polymer powder consumption | 8.8 g/kgDS |
| TSS concentration in filtrate | 70 ppm |
| DS capture rate | up to 99.7 % |
