VSEP treats thermomechanical pumping effluent with no pre-treatment required at a major MDF plant
New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) system in August, 1998 at a major international Medium Density Fiber (MDF) Board manufacturing facility. The VSEP is used for treatment of thermomechanical pulping effluent at this facility with no pretreatment required. The VSEP system uses a nanofiltration membrane module and is able to treat pressate from the screw press operation after refining, in order to reduce COD, TSS, oil and grease below the required limits. The economics of installing this system are extremely attractive with a payback period of about 7 months. The application of VSEP membrane technology to medium density fiber board and similar manufacturing facilities (pulping, board, paper, etc.) is found to be an attractive and economical alternative to conventional wastewater treatment technology.