Removal of Fe2+ in coastal aquaculture source water by manganese ores: Batch experiments and breakthrough curve modeling

被引：0

作者：

Wang, Jianhua ^{[1
]}

Feng, Wenchao ^{[1
]}

Lu, Jian ^{[1
]}

Wu, Jun ^{[2
]}

Cao, Wenxin ^{[3
]}

Zhang, Jianbai ^{[4
]}

Zhang, Cui ^{[1
]}

Hu, Bing ^{[5
]}

Li, Wensheng ^{[6
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai, Shandong, Peoples R China

[2] Harbin Engn Univ, Yantai Res Inst, Yantai, Shandong, Peoples R China

[3] Yantai Municipal Drainage Serv Ctr, Yantai, Peoples R China

[4] Yantai Marine Econ Res Inst, Yantai, Peoples R China

[5] Fujian Tianma Sci & Technol Grp Co Ltd, Fuqing, Peoples R China

[6] Laizhou MingBo Aquat Co Ltd, Yantai, Peoples R China

来源：

WATER ENVIRONMENT RESEARCH | 2024年 / 96卷 / 11期

关键词：

coastal aquaculture source water; manganese sand; reaction rate; removal of Fe2+; CATALYTIC-OXIDATION; AQUEOUS-SOLUTION; IRON REMOVAL; FERROUS IRON; ADSORPTION; KINETICS; ZEOLITE; COLUMN; OPTIMIZATION; DISSOLUTION;

D O I：

10.1002/wer.11147

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Excessive Fe2+ in coastal aquaculture source water will seriously affect the aquaculture development. This study used manganese sand to investigate the removal potential and mechanism of Fe2+ in coastal aquaculture source water by column experiments. The pseudo-first-order kinetic model could better describe Fe2+ removal process with R-2 in the range of 0.9451-0.9911. More than 99.7% of Fe2+ could be removed within 120 min while the removal rate (k) was positively affected by low initial concentration of Fe2+, high temperature, and low pH. Logistic growth (S-shaped growth) model could better fit the concentration variation of Fe2+ in the effluent of the column (R-2>0.99). The Fe-2 breakthrough curve could be fitted by Bohart-Adams, Yoon-Nelson, and Thomas models (R-2>0.95). Smooth slices with irregular shapes existed on the surface of manganese sand after the reaction while Fe content increased significantly on the surface of manganese sand after the column experiment. Moreover, FeO (OH) was mainly formed on the surface of manganese sand after the reaction.

引用

页数：14