The adsorption process during inorganic phosphorus removal by cultured periphyton
2014
Lu, Haiying | Yang, Linzhang | Shabbir, Sadaf | Wu, Yonghong
To explain the detailed process involved in phosphorus removal by periphyton, the periphyton dominated by photoautotrophic microorganisms was employed in this study to remove inorganic phosphorus (P ᵢ ) from wastewater, and the removal kinetics and isotherms were then evaluated for the P ᵢ removal process. Results showed that the periphyton was capable of effectively removing P ᵢ that could completely remove the P ᵢ in 24 h at an initial P ᵢ concentration of 13 mg P L⁻¹. Furthermore, the P ᵢ removal process by the periphyton was dominated by adsorption at initial stage (~24 h), which involved physical mechanistic process. However, this P ᵢ adsorption process was significantly influenced by environmental conditions. This work provides an insight into the understanding of phosphorus adsorption by periphyton or similar microbial aggregates.
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