Enhancement of biodegradability of real textile and dyeing wastewater by electron beam irradiation

被引：40
作者：
He, Shijun [1 ]
Sun, Weihua [2 ]
Wang, Jianlong [1 ,3 ]
Chen, Lvjun [2 ]
Zhang, Youxue [4 ]
Yu, Jiang [4 ]
机构：
[1] Tsinghua Univ, INET, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, INET, Beijing 100084, Peoples R China
[4] Jiangsu Dasheng Electron Accelerator Device Co Lt, Suzhou 215214, Jiangsu, Peoples R China
来源：
RADIATION PHYSICS AND CHEMISTRY | 2016年 / 124卷
基金：
中国国家自然科学基金;
关键词：
Dyeing wastewater; Irradiation; Biodegradability; Wastewater treatment; Advanced oxidation processes; GAMMA-IRRADIATION; AQUEOUS-SOLUTION; FENTON OXIDATION; AZO DYES; DEGRADATION; RADIATION; DECOLORIZATION; SULFAMETHAZINE; WASTEWATERS; IMPROVEMENT;
D O I：
10.1016/j.radphyschem.2015.11.033
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A textile and dyeing wastewater treatment plant is going to be upgraded due to the stringent discharge standards in Jiangsu province, China, and electron beam irradiation is considering to be used. In order to determine the suitable location of the electron accelerator in the process of wastewater treatment plant, the effects of electron beam (EB) irradiation on the biodegradability of various real wastewater samples collecting from the different stages of the wastewater treatment plant, the values of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), and the ratio of BOD5 and COD (BOD5/COD), were compared before and after EB irradiation. During EB irradiation process, color indices and absorbance at 254 nm wavelength (UV254) of wastewater were also determined. The results showed that EB irradiation pre-treatment cannot improve the biodegradability of raw textile and dyeing wastewater, which contains a large amount of biodegradable organic matters. In contrast, as to the final effluent of biological treatment process, EB irradiation can enhance the biodegradability to 224%. Therefore, the promising way is to apply EB irradiation as a post -treatment of the conventional biological process. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：203 / 207
页数：5
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