Redirigiendo al acceso original de articulo en 16 segundos...
Inicio  /  Water  /  Vol: 10 Núm: 3 Par: 0 (2018)  /  Artículo
ARTÍCULO
TITULO

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Hannah Milh    
Kwinten Van Eyck and Raf Dewil    

Resumen

In this study, the degradation of 4-chlorophenol (4-CP) is investigated by using a combination of microwave (MW) irradiation and hydrogen peroxide as oxidant (the MW?H2O2-process). The influence of the critical parameters on the efficiency of the process is examined by applying Partial Least Square Regression (PLS) on a Design of Experiments (DOE). Also, a kinetic evaluation of the process is carried out. Results showed that the MW?H2O2-process is effective in the degradation of 4-CP. The most influential parameter of the MW?H2O2-process is the reaction temperature. Besides this parameter, the reaction time, initial 4-CP concentration, and initial hydrogen peroxide concentration have a (minor) influence on the 4-CP degradation. A maximum degradation efficiency within the levels of the DOE (remaining percentage of 4-CP of 34%) was achieved with an initial 4-CP concentration of 1000 mg/L, an initial H2O2 concentration of 11 g/L, reaction temperature of 180 °C, and reaction time of 20 min. The process follows pseudo first order reaction kinetics.

 Artículos similares

       
 
Guangzheng Qi, Qiang Zhang and Zhengning Sun    
Supersulfated cement (SSC), a low-carbon, energy-efficient, eco-friendly cementitious material, is mainly made from industrial byproducts. However, SSC?s slow early strength development leads to inadequate initial hardening and reduced durability, which ... ver más
Revista: Buildings

 
Wenpeng Wang, Fanlong Kong, Huazhen Wu, Chunyan Zhai, Yang Li, Sen Wang and Hong Yang    
The effluent discharged from wastewater treatment facilities frequently enters the ocean, posing a considerable threat to the health of marine life and humans. In this paper, an alkali lignin-based biochar-loaded modified Fe?Cu catalyst (FeCu@BC) was pre... ver más

 
Su-Lan Yang, Kan Xie, Jing Wang, Bingchen An, Bin Tian, Hongqi Nie, Jie-Yao Lyu and Qi-Long Yan    
In this study, an Al/Co@RDX composite was meticulously prepared through a combination of planetary high-energy ball-milling and a spray-drying technique. The thermal reactivity of these Al/Co@RDX composites was comprehensively investigated and compared u... ver más
Revista: Aerospace

 
Shangye Chu, Xu Zeng, Hai Lin and Yuting Zhu    
The performance of catalytic wet oxidation of excess activated sludge derived from pharmaceutical wastewater treatment over a Cu/?-Al2O3 catalyst was investigated. The experiments were performed with a stainless steel autoclave reactor by using the prepa... ver más
Revista: Water

 
Weixin Zhou, Yao Zhao, Hua Yuan and Zhaoxin Ren    
The unclear change laws of bearing offset and rotation, both of which influence the condition of shaft alignment during hull deformation, make it difficult to optimize shafting design. In this paper, an integrated hull-bearing-shaft model is designed and... ver más