Pulp & Paper
The waste material, paper sludge, produced from the manufacturing of paper has material value and can be utilized as a fuel supplement in the plant’s boilers. Paper sludge at a 70-80% total solids content, contains a moderate level of energy which can be economically recovered.
Paper sludge prior to water removal has limited use and is usually discarded into landfills. By removing the majority of the water from the paper sludge, the energy content of the waste is shifted from minimal to moderate. After water removal, it is recommended that the paper sludge is pelletized to ease handling and increase boiler retention time for a thorough burn. The net economics are positive for this process and system.
Stationary Tempest Modules range in size from 5 – 10 wet tons per hour and can be built in multiples to process a facility’s paper sludge production stream. Multi-throat venturi wet scrubbers, or similar processes, are installed to ensure that air emissions meet the regulatory agency’s rules. |
 Domtar Process Layout |