Removal of ferrous from the wastewater with high-concentration heavy metal by induced crystallization

Song, Wei1; Fu, Caixia2; Li, Ji1; Zhang, Xiaolei1

2018-06

10.5004/dwt.2018.22449

Desalination and Water Treatment   影响因子和分区

1944-3994

1944-3986

This work had proposed an effective solution to treat the iron-containing heavy metal wastewater by induced crystallization. In this study, a hydraulic fluidized-bed reactor was employed to remove ferrous from the high-concentration heavy metal wastewater. Sand grains (Fe free) were used as carriers. It was found that the optimum initial pH, molar ratio of [CO32-]/[Fe2+], HRT and the hydraulic loading were 3.0-3.5, 2.0:1, 40 min and 31 m/h, respectively. Under the optimal condition, Fe2+ removal rate reached above 95% when the initial concentration was 100 mg/L. The average particle diameter of the carriers increased from 0.32 mm to 0.48 mm during the continuous operation for 30 days. In addition, crystalline products were observed on the surface of the sand grains and Fe was detected in the products. The study revealed that hydraulic fluidized-bed reactor had great potential on removal from the wastewater containing high-concentration heavy metal.

Ferrous removal Crystallization Fluidized-bed reactor Wastewater

SCI

英语

其他

Urban Water Pollution Control and Management Generic Technology Program[2012ZX07206-002]

Engineering ; Water Resources

Engineering, Chemical ; Water Resources

WOS:000445130100014

DESALINATION PUBL

Web of Science

1.Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen Grad Sch, Shenzhen Key Lab Water Resource Applicat & Enviro, Shenzhen 518055, Peoples R China
2.South Univ Sci & Technol China, Sch Environm Sci & Engn, Shenzhen Key Lab Soil & Groundwater Pollut Contro, Shenzhen 518055, Peoples R China

Song, Wei,Fu, Caixia,Li, Ji,et al. Removal of ferrous from the wastewater with high-concentration heavy metal by induced crystallization[J]. Desalination and Water Treatment,2018,116:129-136.

Song, Wei,Fu, Caixia,Li, Ji,&Zhang, Xiaolei.(2018).Removal of ferrous from the wastewater with high-concentration heavy metal by induced crystallization.Desalination and Water Treatment,116,129-136.

Song, Wei,et al."Removal of ferrous from the wastewater with high-concentration heavy metal by induced crystallization".Desalination and Water Treatment 116(2018):129-136.