Powdered activated carbon treatment



Environmental technology
Environmental science

Powdered Activated Carbon Treatment (PACT) is a wastewater technology in which powdered aerobic treatment system. The carbon in the biological treatment process acts as a "buffer" against the effects of toxic organics in the wastewater.

In such a system, biological treatment and carbon activated sludge and granular carbon treatment options. The addition of the powdered activated carbon stabilizes biological systems against upsets and shock loading, controls color and odor, and may reduce disposal costs while removing soluble organics.

Commercial Applications

The system as it exists today was developed in the 1970s under a collaborative effort between DuPont and Zimpro. PACT systems can be used to treat industrial leachate and highly contaminated surface water or groundwater.

In an biomass slurry are allowed to settle.

Following treatment, a portion of the carbon and biomass slurry is wasted to solids handling. These solids can be wasted and disposed of as a slurry, dewatered to a compact, stable cake, or pumped as a slurry to a wet air oxidation unit for further processing to regenerate the carbon and destroy the biological solids.

See also
 
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