This case study of bioaugmentation demonstrates that Petrox bioaugmentation can achieve the very low remediation goals set for pesticides in ground water – quickly and cost effectively.
After three injections of Petrox®, the contaminant concentrations were reduced by 99% in less than 9 months.
Project highlights are:
Source area maximum dieldrin concentrations decreased from 9.8 µg/L to 0.22 µg/L. Concentrations in other source area monitoring wells decreased from 2.7 µg/L to <0.0047 µg/L and 0.12 µg/L to <0.0023 µg/L. The dieldrin remediation goal was 0.002 µg/L.
Source area maximum heptachlor epoxide concentrations were reduced from 0.70 µg/L to <0.0046 µg/L. Concentrations in other source area monitoring wells were reduced from 0.030 µg/L to <0.0046 µg/L and 0.68 µg/L to <0.0095 µg/L. The dieldrin remediation goal was 0.2 µg/L.
Petrox® bioaugmentation was implemented without disrupting property use and without installing injection points inside buildings.
Dieldrin and DDx removal through wastewater treatment, ozonation, and microfiltration was assessed for a water reuse project for groundwater replenishment in Monterey, California, USA. Full-scale sampling was conducted at the wastewater treatment plant, and physical wastewater treatment processes, ozonation, and microfiltration were tested at the bench scale. Removals observed through wastewater treatment, ozonation, and microfiltration were 84%, 44% to 63%, and 97% to 98%, respectively, for dieldrin, and 93%,...
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Abstract:
Concentrations of organochlorine pesticides (Lindane, Aldrin, Dieldrin, Endosulfan, DDT and DDE) residues in beef samples from the Kumasi and Buoho abattoirs in Ghana were determined using gas chromatography. Organochlorine residues were found in all the samples. The average concentration of lindane in beef fat samples from Kumasi was 4.03 µg/kg and 1.79 µg/kg in beef fat from Buoho. The average levels of lindane were 2.07 µg/kg for lean meat samples from Kumasi abattoir and 0.60 µg/kg in lean meat...
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