PCBs Dewatering Project

 

An environmental service company was dewatering water a construction site that contained high levels of polychlorinated biphenyls (PCBs), metals, and semivolatiles. The flowrate of the system was 500 gpm.

Hydrosil was contracted to supply the filtration media for the dewatering project. The project utilized HS-250-ACR to treat the wide range of contaminates for 5 months. Results of the project are shown below.

Pollutant Influent Effluent Reporting Limit
Metals (mg/L)
Chromium 0.01 <0.001 N/A
Nickel 0.04 <0.001 0.0082
Zinc 0.002 <0.001 0.066
PCB (ug/L)
PCB-1016 <0.24 <0.05 0.24
PCB-1221 0.8 <0.05
PCB-1248 1.1 <0.05
PCB-1260 <0.24 <0.05
PCB-1262 0.3 <0.05
PCB-1268 <0.24 <0.05
Semivolatiles (ug/L)
Benzo(a)anthracene 0.22 0.008 0.04
Benzo(a)pyrene 0.24 <0.05 0.05
Benzo(k)fluoranthene 0.26 <0.05 0.05
Chrysene 0.32 0.006 0.05
Dibenz(a,h)anthracene 0.07 <0.005 0.02
Hexachlorobenzene 0.52 <0.001 0.05
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