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Bench-Scale Treatability Study Treatment of
Pesticides/Herbicides Using VeruTEK's S-ISCO™ Coelution
Technology™
Soil samples were collected from a farm with moderate pesticide
contamination. These samples were characterized to determine
initial pesticide contamination levels prior to using in three
laboratory tests:
- Test 1: No treatment (control column)
- Test 2: Alkaline persulfate and VeruSOL™
- Test 3: Iron-activated persulfate with VeruSOL™
Each test contained the same amount of soil and groundwater.
Each test also contained approximately the same amount of
contaminants initially; the table and graph below demonstrate the
effectiveness of S-ISCO in destroying pesticide contamination after
just 7 days:
Pesticide Contaminant Concentrations
| Pesticide Chemical |
Test 1:
Control |
Test 2:
Alkaline S-ISCO |
Test 3:
Fe-activated S-ISCO |
| Dieldrin, μg/kg |
910 |
160 |
500 |
| 4,4' - DDT, μg/kg |
1,000 |
50 |
850 |
| Endrin, μg/kg |
890 |
150 |
510 |
| Endrin ketone, μg/kg |
710 |
ND |
320 |
Treatment with the Alkaline S-ISCO technology led to the
destruction of over 60% of the pesticide contamination in 7 days.
Typical reaction times for VeruTEK's S-ISCO chemistry to completely
destroy contamination range from two to four weeks. The tests are
currently on-going for evaluation of results after 14 days and 30
days.
Download PDF Version: Treatment of Pesticides/Herbicides Using
VeruTEK'sS-ISCO™ Coelution Technology™