Comparison of alternative treatments for 4-chlorophenol removal from aqueous solutions: Use of free and immobilized soybean peroxidase and KrCl excilamp

Photocatalytic degradation of p-chlorophenol by hybrid H2O2 and TiO2 in aqueous suspensions under UV irradiation

“…A light intensity of 100 W significantly affects p-CP degradation rate, producing 8-fold (UV/TiO 2 system) and 4.3-fold (UV/H 2 O 2 / TiO 2 system) relative to that of 20 W, respectively. Specifically, the degradation rate was improved when increasing the light intensity (Alimoradzadeh et al, 2012;Gomez et al, 2009;Wang et al, 2009).…”

Toxicity in different molecular-weight fractions of sludge treating synthetic wastewater containing 4-chlorophenol

“…Owing to its high toxicity and suspected carcinogenic and mutagenic characteristics, 4-CP has been regulated as a priority pollutant by the United Stated Environmental Protection Agency (Wen et al, 2006;Nalbur and Alkan, 2007;Haddadi and Shavandi, 2013;Lim et al, 2013). Therefore, the removal of 4-CP from industrial wastewater has been an important environmental issue (Gomez et al, 2009). At present, some physical, chemical and biological treatment methods are widely applied to investigate 4-CP removal efficiency (Lima et al, 2004;Bian et al, 2011;Oh et al, 2011;Diez et al, 2012;Elghniji et al, 2012).…”

Effect of operational conditions on removal of 4-chlorophenol in water using UV/NiO process

“…Sources of this compound include industrial effluents, such as petroleum refining, and production of pesticides, paint, plastic, resin, textile, iron, solvent, pharmaceutics and wood preserving chemicals and named as one of the priority pollutants by the US Environmental Protection Agency (EPA) and the European Union (EU). The permissible limit of 4-CP in drinking water supply is 0.5 mg l -1 (Pera-Titus et al, 2004;Pi et al, 2007;Movahedyan et al, 2008;Gomez et al, 2009;Neppolian et al, 2011;Olaniran and Igbinosa, 2011). Due to 4-CP high toxicity and persistence in the environment, attention has been focused on its removal from the aqueous media.…”