Removal of 2,4-dichlorophenol and toxicity from synthetic wastewater in a rotating perforated tube biofilm reactor

Biodegradation of 2, 4 Dichlorophenol

“…Therefore, acclimatization (adaptation) of the microbial cultures to phenols is an important step for efficient biodegradation of these compounds due to their high toxicity to microorganisms (El-Naas et al, 2009;2010b;Bajaj et al, 2008;Al-Khalid and El-Naas, 2012;Khan et al, 2011). Pre-adaptation of the biomass to the chlorophenols is known to enhance the rate and the extent of biodegradation of those compounds (Bhattacharya and Banerjee, 2008;Kargi and Eker, 2005). The study was carried out with freshly-prepared bacteria adapted directly to 2, 4 DCP.…”

“…Compared with physico-chemical methods, the biodegradation method of phenols removal is widely preferred as a more environmental friendly and cost effective approach, due to the possibility of complete mineralization of phenol or its derivative El-Naas et al, 2009;Kargi and Eker, 2005). This results in complete conversion of a compound to its inorganic mineral constituents (Nair et al, 2008), with harmless end products and minimum secondary metabolites (Sridevi et al, 2011).…”

“…Kusic et al (2011) applied the Box-Behnken experimental design inherent in the RSM to evaluate the feasibility of UV/ferrioxalate system for the degradation of 4-Chlorophenol (4 CP) as a model wastewater pollutant. Kargi and Eker (2005) used a Box-Wilson design to optimize the removal of 2, 4 DCP from synthetic wastewater in a rotating perforated tube biofilm reactor by activated sludge culture supplemented with P. putida. Bhattacharya and Banerjee (2008) and Bhattacharya et al (2009) employed RSM for the study of enzyme mediated biodegradation of 2,4 DCP.…”

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

“…8 Some physicochemical and biological methods including adsorption, extraction by chemical solvents, air stripping, freezing and crystallization, chemical oxidation, wet oxidation, advanced oxidation processes, biological degradation biosorption, coagulation, chlorination and liquid membrane permeation have been developed for the removal of phenolic compounds from aqueous solutions. 6,7,9,[10][11][12][13] Among these methods, the ones used for the concentration of the chlorinated phenols on the solid phase are adsorption and ion exchange methods but they are not for complete mineralization. The ones used for complete mineralization and combination of chlorophenols are chemical or biological oxidation methods.…”

“…Biosorption methods of chlorophenols were also investigated by many researchers. [7][8][9][10] According to recent studies, some natural minerals, industrial wastes, agricultural wastes, and forest wastes are low-cost adsorbent materials. [15][16][17][18] Agricultural wastes among them are one of the most promising groups of adsorbent materials.…”