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Table 2 Remediation of sites/actual site soils contaminated with pesticides and PCBs in aerobic slurry bioreactors.

From: A review on slurry bioreactors for bioremediation of soils and sediments

Matrix Contaminant Remarks Removal Ref.
Waste activated sludge EPTCa (5 – 6 ppm) a) freely suspended activated sludge b) immobilized activated sludge a)35% b)72% [109]
Agricultural soil Clay 56.11% Silt 23.2% Sand 20.69% pH 8.3 Organic carbon 0.6% γ-HCHb Inoculated with Pseudomonas putida coexpressing cytocrome P-450 cam and luciferase 65% [48]
Soil Clay 13% Silt 21% Sand 66% pH 7.7 Total carbonates 3% a) PCBsc (1210 mg/kg) b) TPHd (11407 mg/kg) Rhamnolipid production was observed by Pseudomonas aeruginosa a) 98% b) 99% [49]
Actual site contaminated soil PCBsc (1547 mg/kg) Inoculated with ECO3 co-culture 21% (without inoculum) 39% (with inoculum) [47]
Actual site contaminated Soil PCBsc (1547 mg/kg) Inoculated with ECO3 co-culture; optimization of SR configuration 18% (in shake flasks with baffles) 30% (in stirred thank reactor) [14]
Actual site contaminated Soil PCBsc (350 mg/kg) Inoculated with ECO3 co-culture in the absence and the presence of Cyclodextrins, Quillaya Saponin, Triton X-100 65% (without agents) 80% (with agents) [46]
Soil Clay 48% Silt 41% Sand 11% pH 7.0 Organic matter 4% 2,4-De (300 mg/kg) With and without sucrose >90% [30]
Soil Clay 26% Silt 48% Sand 26% pH 7.2 Organic matter 0.8% DEPf (8 mg/g) a) with native soil microflora b) with effluent treatment plant microflora a) 47.9% b) 75.4% [22]
  1. Notes: aS-ethyl dipropylthiocarbamate; -hexaclhorocyclohexane; cPolychlrorinated byphenyls; dTotal petroleum hydrocarbons; e2,4-dichlorophenoxyacetic acid; fdi-ethyl phthalate