Nonionic surfactant effects on pentachlorophenol biodegradation

Effect of Soya Lecithin on Solubilization and Biodegradation of Pentachlorophenol by <i>Anthracophyllum discolor</i>

“…In contrast, contaminant solubility is increased when surfactant concentration is above its CMC. On the other hand, Cort et al [23] evaluated the aqueous solubility of PCP in the presence of surfactant nonionic, Tergitol NP-10. They found that PCP concentration increased linearly as surfactant was added.…”

“…After 26 days of incubation, the 94.4% of PCP was removed, when the culture medium was supplemented with 0.9 g•L −1 of SL. In contrast, in the control assay (without SL) only the 76.5 [23]; they evaluated the effect of nonionic surfactant on PCP biodegradation. Their result showed a faster PCP degradation rates at higher concentrations of nonionic surfactant, Tergitol NP-10.…”

“…Moreover, they concluded that the changes in the apparent solubility of the compound within the pH are attributed to the different pH-depended structures of rhamnolipid. Cort et al [23] evaluated the solubility of PCP in minimal medium containing Tergitol NP-10 (nonionic surfactant) adjusted to pH 2. They found that PCP concentration increased linearly as surfactant was added in the range of 50 -1256…”

The Effect of the Mixture of Nonionic Surfactant and Bioactive Agent for Surfactant-enhanced Soil Flushing (SESF) of TCB Contaminated Soil

“…The most effective surfactant was Witconol SN70 (alkyl polyoxyethylene glycol, a nonionic surfactant). DOSL (diphenyl oxide disulfonates, an anionic surfactant) was also a good surfactant for the removal of chlorinated hydrocarbon in the column test and the pilot test (Cort et al, 2002). In another surfactant selection study, using a separate funnel experiment of solubility, Fountain et al (1991) evaluated 100 surfactants for washing PCE (tetrachloroe-*Corresponding author : dalheui@yonsei.ac.kr Received : 2013.…”

Development of novel oil recovery methods for petroleum refinery oily sludge treatment

“…Similar results can be found in Dantas et al (200l)'s research. However, using chemical surfactants can be associated with a range of problems such as environmental toxicity and resistance to biodegradation (Christofi and Ivshina, 2002;Mulligan et al, 2001;Whang et al, 2008;Cort et al, 2002). As compared to chemical surfactant, bio-surfactant has received increasing attention since it exhibits greater environmental compatibility, more diversity, better surface activity, lower toxicity, higher emulsification ability, higher selectivity, and higher biodegradability (Syal and Ramamurthy, 2003;Urum et al, 2004;Ron and Rosenberg, 2002;Mulligan, 2005;Pekdemir et al, 2005;Chin et al, 2009) .…”