Biosorption of heavy metals in an aqueous solution by aerobic biofilm subjected to an external dc electric field
Bibliographic Data
| ID | 19267339 |
|---|---|
| Authors | Tiancheng Li (0000-0002-0499-5135, Tianjin University, corresponding author), LI TIAN‐CHENG, LI XIN‐GANG, Xingang Li (0000-0002-8226-9796, Tianjin University), ZHU SHEN‐LIN (Tianjin University) |
| Year | 2004 |
| Volume | 61 |
| Issue | 3 |
| Pages | 253-264 |
| Publication date | 2004-06-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | International Journal of Environmental Studies (JOURNAL) |
| Journal identifiers | ISSN: 0020-7233 • E-ISSN: 1026-7476 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/0020723042000188300 |
| OpenAlex | W1995771981 |
| Language | EN |
| Citations received | 1 |
| References cited | 7 |
Electro biosorption is a potential technology for reclamation of wastewater laden with heavy metal ions present in low concentrations. In this study, multi‐species micro‐organisms in aerobic biofilms demonstrated a great capacity to adsorb, and a direct current (DC) electric field with low intensity was able to promote the directional movements of heavy metals in wastewater and strengthen the interactions between heavy metals and microbes in biofilms. A two‐dimensional model was established to describe wastewater flow and the transfer and adsorption of heavy metal ions by biofilms in a weak DC electric field. The simulation results for low concentrations of Cu2 + or Cr3 + ions in outlet water were tested by an electro biosorption experiment, and the influence of the electric field intensity, the inlet concentration of heavy metal ions and the wastewater flow velocity on the equilibrium adsorption amount are discussed in detail. The equilibrium adsorption amount increased rapidly in the initial stage, and became slow afterwards, along with the increase in the electro field intensity. There was a linear relationship between the equilibrium adsorption amount and the inlet concentration of heavy metal ions. Wastewater flow velocity had an obvious effect on the equilibrium adsorption amount; the equilibrium adsorption amount decreased rapidly at first and the decrease subsequently became slow along with an increase in wastewater flow velocity
Adsorption · Aqueous solution · Biosorption · Effluent · Electric field · Flow (mathematics) · Flow velocity · Mechanics · Metal · Metal ions in aqueous solution · Physics · Sewage treatment · Sorption · Wastewater · Chemistry · Electrokinetic Soil Remediation Techniques · Environmental Chemistry · Environmental Engineering · Environmental Science · Microfluidic and Bio-sensing Technologies
| Citations per year | 0.05 |
|---|---|
| Citation span | 2005 - 2005 (1) |
| Highly cited | No |