Effects of Chlorella vulgaris on phosphorus release from ferric phosphate sediment by consecutive cultivations.

ABSTRACT: Iron phosphate (Fe-P) is a main phosphorus storage form, especially in phosphorus-polluted environments. The re-release of Fe-P is a problematic result during microalgal remediation. In this study, pre-incubated Chlorella vulgaris was cultured in a BG-11 culture medium with different amounts of Fe-P. The effects of Fe-P re-release on biomass, flocculation and removal of PO₄ ^3- were investigated. The results indicated that C. vulgaris can promote the dissolution and release of Fe-P when the pH is 7, and the amount of Fe-P (ΔQ) released in 200 ml water reaches 0.055-0.45 mg d^-1 under a C. vulgaris concentration of 5.6 × 10⁵-8 × 10⁵ cells ml^-1. The growth of C. vulgaris was inhibited because of the f

SUBMITTER: He L 

PROVIDER: S-EPMC8889175 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature