Bioremediation of chromium and lead in wastewater from chemistry laboratories promotes by cyanobacteria

被引：11

作者：

Souza, Priscila Oliveira de ^{[1
,5
]}

Sinhor, Vanderleia ^{[1
]}

Crizel, Marcelo Guerreiro ^{[2
]}

Pires, Natanael ^{[3
]}

Filho, Pedro Jose Sanches ^{[3
]}

Picoloto, Rochele Sogari ^{[4
]}

Duarte, Fabio Andrei ^{[4
]}

Pereira, Claudio Martin Pereira ^{[1
]}

Mesko, Marcia Foster ^{[2
]}

机构：

[1] Fed Univ Pelotas UFPel, Ctr Chem Pharmaceut & Food Sci, Lab Lipid & Bioorgan, Pelotas, RS, Brazil

[2] Fed Univ Pelotas UFPel, Ctr Chem Pharmaceut & Food Sci, Lab Contaminant Control Biomat, Pelotas, RS, Brazil

[3] Fed Inst Rio Grande do Sul IF Sul, Analyt Ctr, Environm Contaminant Anal Lab, Pelotas, RS, Brazil

[4] Fed Univ St Maria UFSM, Chem Dept, Lab Ind & Environm Chem Anal, Santa Maria, RS, Brazil

[5] Univ Fed Pelotas, Ctr Ciencias Quim Farmaceut & Alimentos, Campus Capao Leao, BR-96160000 Pelotas, RS, Brazil

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2022年 / 19卷

关键词：

Bioremediation; Cyanobacteria; Heavy metals; Wastewater; REMOVAL; BIOSORPTION; KINETICS; IONS; PH;

D O I：

10.1016/j.biteb.2022.101161

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Microorganisms have been considered as an alternative for bioremediation of contaminated water, and they are naturally available in the environment. This work evaluated the potential of cyanobacteria for bioremediation of chromium (Cr) and lead (Pb) from wastewater obtained from chemistry laboratories. Cell density and total cyanobacterium biomass were evaluated during 240 h to compare the growth in the control medium and the water contaminated by heavy metals, as well as the lethal concentration of metals to cyanobacteria. After 240 h of incubation, the Cr concentration in laboratory wastewater decreased from 63.8 to 56.2 mu g/L (around 12 % less than the initial concentration) and Pb decreased from 418 to 239 mu g/L (around 43 %). The total accumulation of Cr and Pb in the cyanobacterium biomass was around 30 % and 65 %, respectively. Therefore, these results showed that the cyanobacteria could be suitable for bioremediation of Cr and Pb from wastewater.

引用

页数：6

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