Phenol removal via activated carbon from co-pyrolysis of waste coal tar pitch and vinasse

被引：20

作者：

Gao, Ming ^{[1
]}

Wang, Xiaona ^{[1
]}

Xia, Changlei ^{[2
]}

Song, Na ^{[3
]}

Ma, Yuhui ^{[4
]}

Wang, Qunhui ^{[1
]}

Yang, Tianxue ^{[5
]}

Ge, Shengbo ^{[2
]}

Wu, Chuanfu ^{[1
]}

Lam, Su Shiung ^{[2
,6
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Dept Environm Sci & Engn, Beijing 100083, Peoples R China

[2] Nanjing Forestry Univ, Coll Mat Sci & Engn, Coinnovat Ctr Efficient Proc & Utilizat Forestry, Nanjing 210037, Jiangsu, Peoples R China

[3] Univ Sci & Technol Beijing, Tianjin Coll, Dept Environm Engn, Tianjin 301830, Peoples R China

[4] Minist Nat Resources, Inst Seawater Desalinat & Multipurpose Utilizat, Tianjin 300192, Peoples R China

[5] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China

[6] Univ Malaysia Terengganu, Inst Trop Aquaculture & Fisheries AKUATROP, Terengganu 21030, Malaysia

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2021年 / 38卷 / 01期

关键词：

Coal Tar Pitch; Vinasse; Activated Carbon; Phenol Wastewater; Adsorption Kinetics and Thermodynamics; SELF-ACTIVATION; MASS-TRANSFER; ADSORPTION; BEHAVIOR; LEAVES; WATER;

D O I：

10.1007/s11814-020-0676-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The behavior and characteristics of phenol adsorption by activated carbon produced from co-pyrolysis of coal tar pitch and vinasse were investigated. Coal tar pitch and vinasse (mass ratio of 1:3) were firstly co-pyrolyzed and carbonated at 400 degrees C for 2 h. The carbonized material produced was then soaked with saturated KOH solution and activated at 800 degrees C for 1 h to form activated carbon. Results from the phenol wastewater adsorption experiments suggest that pseudo-second-order kinetics and the Weber-Morris model could reflect the time-dependent adsorption behavior of phenol wastewater by the activated carbon, revealing that internal diffusion represents the rate-limiting procedure and dominant process to control the adsorption rate in the early stage of the adsorption. Monolayer adsorption played the key role during the phenol adsorption. The adsorption was an endothermic reaction in temperature ranging from 15 degrees C to 35 degrees C, indicating that the adsorption speed could be stimulated by the increasing temperature. This study establishes a theoretical foundation for the usage and the potential application of the activated carbon derived from coal tar pitch and vinasse in wastewater treatment.

引用

页码：64 / 71

页数：8

共 33 条

[1] The investigation of kinetic and isotherm of fluoride adsorption onto functionalize pumice stone [J].