Derrick DE-1000 decanter removes suspended solids from air pollution control process water. Forest products companies are installing the Derrick DE-1000 decanter to remove suspended solids from air pollution control process water, usually without chemical addition. Treated process water can then be recycled, recovering chemical and heat values. Solids are discharged as a concentrated cake that may be used as a fuel component (see schematic below).

• Improve performance of air pollution control systems at reduced costs
• Reduce or eliminate cost of ponds and solids disposal
• Recover chemical and heat values while saving water

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Controlling Fine Solids in Air Pollution Control Process Water