Comparison of the microalgae Phormidium tenue and Chlorella vulgaris as biosorbents of Cd and Zn from aqueous environments

被引：11

作者：

Al-Khiat, Soad H. ^{[1
]}

Bukhari, Najat A. ^{[1
]}

Ameen, Fuad ^{[1
]}

Abdel-Raouf, Neveen ^{[2
,3
]}

机构：

[1] King Saud Univ, Coll Sci, Dept Bot & Microbiol, POB 2455, Riyadh 11451, Saudi Arabia

[2] Prince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities Al Kharj, Dept Biol, Al Kharj 11942, Saudi Arabia

[3] Beni Suef Univ, Fac Sci, Bot & Microbiol Dept, Bani Suwayf 65211, Egypt

来源：

ENVIRONMENTAL RESEARCH | 2023年 / 235卷

关键词：

Bioremoval; Heavy metals; Microalgae; Toxicity; Bioaccumulation; HEAVY-METAL; GREEN-ALGAE; WASTE-WATER; REMOVAL; COPPER; BIOSORPTION; GROWTH; ZINC; BIOACCUMULATION; METHODOLOGY;

D O I：

10.1016/j.envres.2023.116675

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heavy metals are accumulating into sediments and enriching in aquatic food chains. The efficiency of two microalgae, Phormidium tenue and Chlorella vulgaris, to remove zinc and cadmium from aqueous solutions was studied. The microalgae were incubated in different heavy metal concentrations for 18 days. Morphological and anatomical changes in microalgae were investigated using a scanning electron microscope (SEM) and a transmission electron microscope (TEM). Both algae removed both Zn2+ and Cd2+ in vitro. C. vulgaris removed Zn2+ almost totally (99%) and Cd2+ slightly less (87%). The concentration factors were 2210 and 1117, respectively. SEM and TEM figures showed some alterations in the form and cellular components of both algae. C. vulgaris appeared to be more tolerant to both Cd and Zn than P. tenue. C. vulgaris is a promising microalgal species used to remove heavy metals from aqueous environments.

引用

页数：10

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