Electropolymerization treatment of phenol wastewater and the reclamation of phenol
Wen Zhang1, Liyin Bao, Xiaoyu Zhang
1Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China. gillianjay@126.com
Abstract:
Electrochemical treatment of phenol wastewater was carried out with stainless steel anodes, and phenol removal was achieved through the electropolymerization process. The effects of phenol concentration and bath voltage were discussed. The original chemical oxygen demand (COD) value was approximately 500 mg/L. After electropolymerization treatment, phenol concentration was 0.087 mmol/ L with a removal efficiency of 95.6%, and COD was 68 mg/L with a removal efficiency of 86.5%. During treatment, the average current efficiency was 60.36% and power consumption was 27.62 kJ/kg (6.96 kWh/ton). The electropolymerization reaction was analyzed by cyclic voltammetry, and the polyphenol product was analyzed by scanning electron microscopy and infrared spectroscopy.
Related Concept Videos
Hydrolysis of Chlorobenzene to Phenol: Dow Process
Benzene to Phenol via Cumene: Hock Process
Microbial Bioremediation of Plastics
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
Types of Step-Growth Polymers: Polyesters
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Bioplastics


