title: Research on the treatment of phosphoric wastewater by ultrasound-assisted microelectrolysis method.
abstract: In this research work, ultrasound was introduced to the microelectrolysis (ME) method to improve the treatment efficiency for phosphoric wastewater. The effects of treatment time, Fe/C ratio (v/v) and iron filings dosage on the efficiency of phosphorus removal from wastewater with different initial pH values were investigated. The results showed that the phosphorus removal efficiency by the ME method was significantly enhanced in the presence of ultrasound. The maximum removal rate of phosphorus (RRP) for the wastewater with an initial pH value of 4.0 was 92.4% after 60 min of treatment when the Fe/C and Fe/H2O volume ratio were 2/1 and 1/10, respectively. The reaction kinetics analysis indicated that the phosphorus degradation processes for the ultrasonic and ME methods as well as the ultrasonically assisted ME method (UME) were in accordance with the pseudo-first-order kinetic model. The synergetic effect of the combined ultrasound and ME method for phosphorus removal was also studied by reaction kinetics analysis.
authors.affiliation: College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Yang
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Xue
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.forename: Zhao-Wei
authors.initials: ZW
authors.lastname: Wang
authors.forename: Shi-Sheng
authors.initials: SS
authors.lastname: Ling
authors.forename: Ling-Guo
authors.initials: LG
authors.lastname: Kong
authors.forename: Yu-Lan
authors.initials: YL
authors.lastname: Chen
mesh_terms: D002244:Carbon / Q000737:chemistry; D004572:Electrolysis; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry; D017553:Phosphorus Compounds / Q000302:isolation & purification*; D011840:Radiation, Nonionizing; D013010:Sonication; D013997:Time Factors; D018508:Water Purification / Q000379:methods*
chemical_list: D017553:Phosphorus Compounds; D002244:Carbon; D007501:Iron