• Lack of support from the system
• Several mechanical problems with the
pumps, controls and filter press
pneumatic valve control problems
• High effluent water conductivity
• Inability to dewater the sludge
The facility was having varied and unstable pH and conductivity levels. The variable pH, due to starch dumps, was causing irregular treatment of the water. The sludge was not dewatering fast enough, backing up the water in the system. To remedy this, the facility required the treatment tank to be pumped out weekly and have the sludge hauled off site wet at a cost of $4,000/load.
Based on the pH levels with the wastewater this facility will be using either of two Floccin products. They will be using Floccin 1103 for low pH levels, and Floccin 1119 for high pH levels. The reaction tank is 8,500 gallons and in a batch operation they are using 50lbs per batch with the Floccin 1103, and 80lbs per batch using Floccin 1119. The treated water pH level is consistent between 6.5 – 7 and gets discharged to the city.
Integrated Engineers is currently working on installing a pH adjustment system to keep the treated water pH level around 7. This pH system will be in line for the purpose of reusing the treated wastewater for starch make up allowing the facility to become a zero discharge user.
The Floccin products are creating more consistent and drier cakes and pass TCLP for non hazard materials. It only takes the filter press 2 presses to completely empty the treatment tank. This will save the facility an estimated the $140,000 per year in waste haul off.