Type of Industry – Food and Beverage Industry
Start of Operation – 2019 November
ISSUE
In this plant sludge from DAF-unit and MBBR reactor was stored on-site in tanks and its utilization was outsourced to an external company. Due to expansiveness of such service, it was decided to build a local dewatering facility to reduce sludge volume and its disposal cost.
SOLUTION
Esmil offered a sludge dewatering solution based on Multi-Disk Screw Press MDQ- 353C. Other auxiliary equipment including a polymer solution preparation unit and pumps as well as piping was supplied by our local partners, assembled by the customer and commissioned by Esmil representatives to meet the highest dewatering process efficiency.
END USER’S COMMENT
Since the commissioning, the performance of the dewatering equipment has been stable, highly efficient and with no issues. High dewatering efficiency resulted in significant sludge volume reduction, so the construction of the local dewatering facility has paid off very quickly.
Results
| Type of sludge | Mixture of waste activated sludge and DAF sludge |
| Unit sludge supply | 47.6 GPM 476 lb DS/h |
| Operation time | 16-20 h/d |
| Feed sludge DS concentration | 1-2 % (up to 4 %) |
| Cake DS content | 16-17 % |
| Average polymer dose | 20 lb/ton DS |
