Open AccessCu2ONPs/DIATOMITE INHIBITS GROWTH AND REMOVAL OF MICROCYSTIS AERUGINOSA
Author(s) -
Nga Dinh Thi,
Thuy Nhung Dang Thi,
Tuan Phan Dinh,
Luu Pham Thanh,
Hoang Yen Tran Thi,
Hien Nguyen Quoc
Publication year - 2021
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/59/6/15574
Subject(s) - microcystis aeruginosa , cyanobacteria , microcystis , shrimp , bloom , eutrophication , particle size , algal bloom , chemistry , pulp and paper industry , microbiology and biotechnology , environmental engineering , biology , fishery , environmental science , ecology , bacteria , nutrient , phytoplankton , organic chemistry , genetics , engineering
Cu2O nanoparticles (Cu2ONPs) with particle size of ~27.4 nm deposited on diatomite (Cu2ONPs/diatomite), a new low-cost material has been used to investigate growth inhibit, and bloom preventation of cyanobacteria in eutrophic waters. Diatomite collected from natural mines was also used in the experiments. Microcystis aeruginosa strain originated from Bac Lieu shrimp pond was isolated and cultured in Z8 medium. Experiments were conducted by exposing M. aeruginosa to Cu2ONPs/diatomite and diatomite at concentrations of 0.1, 0.2, and 0.5 g/L for 72 hours and 120 hours. The results showed that the concentration of 0.5 g/L in 120 hours, Cu2ONPs/diatomite was more effective in inhibiting and removing of M. aeruginosa cells than diatomite. Therefore, Cu2ONPs/diatomite could be used as a promising material for removing cyanobacterial bloom in water for aquaculture.