Carbonaceous material prepared by pyrolysis of refinery oily sludge for removal of flotation collectors in wastewater

被引：3
|
作者：
Fu, Peng [1 ]
Yang, Huifen [1 ]
Zhang, Qingping [1 ]
Sun, Qiwei [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Civil & Resource Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2022年 / 29卷 / 60期
关键词：
Carbonaceous material; Refinery oily sludge; Adsorbent; Wastewater; Collector; Butyl xanthate; Diethyldithiocarbamate; AQUEOUS-SOLUTIONS; COAGULATION-FLOCCULATION; MINERAL FLOTATION; XANTHATE; ADSORPTION; DEGRADATION; OXIDATION; REAGENTS;
D O I：
10.1007/s11356-022-21823-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The carbonaceous material (CM) prepared by refinery oily sludge was proposed to remove flotation collectors, butyl xanthate (BX), and diethyldithiocarbamate (DDTC) in synthetic wastewater. The effects of the CM on removal efficiency, adsorption kinetics, and isotherms were experimentally carried out. The surface structure and composition of CM were characterized by BET isotherm, XRD, and SEM-EDS, and the concentration of BX and DDTC was tested by UV-VIS spectrometer. The adsorption behavior and removal mechanism were investigated by zeta potential, ToF-SIMS, FTIR, etc. The removal efficiencies of BX and DDTC were both more than 99%, and the maximum adsorption capacity peaked when the pH of the solution was neutral. The two collectors were heterogeneous adsorption on the surface of CM. BX, DDTC, and related metal compounds were found on the surface of carbonaceous material, confirming the existence of both physical and chemical adsorption, and physical adsorption accounted for the main mechanism. It is proved that BX and DDTC can be removed by carbonaceous material and realize the high-effective utilization of refinery oily sludge.
引用
收藏
页码：90898 / 90910
页数：13
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