The paper mill in Sweden dewaters sludge from a paper production using a belt press that operates 24\/7 and processes DAF thickened biological sludge. The highly fibrous sludge causes frequent clogging, so preventive measures such as constant high-pressure showers and frequent maintenance are required.<\/p> \n
This increases the costs associated with the operation and maintenance of the technology. The goal of the pilot test was to replace the two-phase process with a dewatering technology that will facilitate the operation and provide better results.<\/p> \n \n
Several technologies had attempted to succeed here but only AMCON\u2019s solution met the customer\u2019s expectations. The VOLUTE DUO\u2122 proved to be a perfect solution for highly fibrous sludge and easily replaced both the pre-thickening DAF and the belt press in one step. Dryness results were consistently 3 \u2013 6 % higher than the belt press with the added benefit of > 99 % filtrate quality and negligible rinse water consumption.<\/p> \n\n\t\t