Bioaugmentation efficiency investigation on soil organic matters and microbial community shift of diesel-contaminated soils

Characteristic Assessment of Diesel-degrading Bacteria Immobilized on Natural Organic Carriers in Marine Environment: the Degradation Activity and Nutrient

“…The kinetic rates ( k ) were approximated by differentiation of [diesel concentration]/[diesel concentration] initial at each time slot. The k of the first stage pattern (0.02848/day–0.0461/day) in each bioremediation method was higher than that of the second stage pattern (0.00138/day–0.00278/day), which indicated that most of the biodegradable or bioavailable compounds were usually rapidly biodegraded during the first stage 20, 21 . In brief, the degradation efficiency of diesel was enhanced by immobilization.…”

Comparative Study of Injection Systems in Vapor Phase in the Remediation of Soils Contaminated by Diesel

“…The results of this paper when compared with those in the literature [1,7,10,11,26,27] have a better performance, since the paper described above, use wash columns or surfactants in need of treatment by bioremediation a longer treatment time. While the methodology employed in this paper covers a larger area of treatment and still need a shorter time to treat this larger area resulting in a similar percentage of removal.…”

“…Among this range of techniques already established for remediation, bioremediation has been used as a solution to the degradation of petroleum hydrocarbons in soil and in contaminated water [5][6][7][8][9][10]. One can also highlight the studies developed with the use of bio-surfactants, which show great efficiencies in the remediation of oil contaminated soils [11].…”

“…The reduction in interfacial tension can facilitate the transport of organic contaminants from the soil through a washing solution [12][13][14]. Most studies that use this type of system have shown satisfactory result in the removal of organic compounds from soil and groundwater [7,8,[15][16][17][18][19]. Unlike other research that performed the washing of the soil with surfactant solutions [20][21][22][23][24][25][26][27], this study aims to inject the steam of micro-emulsions, surfactant solutions and Nano-emulsions in the remediation of soils contaminated by diesel.…”

The optimal combination of entrapped bacteria for diesel remediation in seawater

“…The degradation in soil has been recognized as a two-stage degradation pattern. In brief, a rapid degradation stage followed by a second relatively slow depletion has been observed, and most of the biodegradable or bioavailable TPH was usually depleted during the first stage (Huesemann, 1997;Alexander, 1999;Nocentini et al, 2000;Chaineau et al, 2003;Liu et al, 2009Liu et al, , 2013Liu et al, , 2014. Differently, Design II and IV did not show the 2-stage degradation pattern, and the resulted degradation rate constant k's became the worst two.…”