HCH Removal in a Biochar-Amended Biofilter

被引：8

作者：

Amirbekov, Aday ^{[1
,2
]}

Mamirova, Aigerim ^{[3
]}

Sevcu, Alena ^{[1
,4
]}

Spanek, Roman ^{[1
]}

Hrabak, Pavel ^{[1
,2
]}

机构：

[1] Tech Univ Liberec, Inst Nanomat Adv Technol & Innovat, Dept Appl Biol, Bendlova 7, Liberec 46001, Czech Republic

[2] Tech Univ Liberec, Fac Mechatron Informat & Interdisciplinary Studie, Liberec 46117, Czech Republic

[3] Inst Genet & Physiol SC MES RK, Al Farabi 93, Alma Ata 050060, Kazakhstan

[4] Tech Univ Liberec, Fac Sci Humanities & Educ, Dept Chem, Studentska 1402-2, Liberec 46117, Czech Republic

来源：

WATER | 2021年 / 13卷 / 23期

关键词：

biodegradation; biochar; constructed wetlands; microbial communities hexachlorocyclohexane; lindane; GAMMA-HEXACHLOROCYCLOHEXANE; BACTERIAL COMMUNITY; ORGANIC POLLUTANTS; DEHALOGENASE GENE; LIN GENES; LOW-COST; DEGRADATION; WATER; LINDANE; SOIL;

D O I：

10.3390/w13233396

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study evaluated the efficiency of two biofilter systems, with and without biochar chambers installed, at degrading and removing HCH and its isomers in natural drainage water. The biochar biofilter proved to be 96% efficient at cleaning HCH and its transformation products from drainage water, a significant improvement over classic biofilter that remove, on average, 68% of HCH. Although iron- and sulfur-oxidizing bacteria, such as Gallionella and Sulfuricurvum, were dominant in the biochar bed outflows, they were absent in sediments, which were rich in Simplicispira, Rhodoluna, Rhodoferax, and Flavobacterium. The presence of functional genes involved in the biodegradation of HCH isomers and their byproducts was confirmed in both systems. The high effectiveness of the biochar biofilter displayed in this study should further encourage the use of biochar in water treatment solutions, e.g., for temporary water purification installations during the construction of other long-term wastewater treatment technologies, or even as final solutions at contaminated sites.

引用

页数：14

共 61 条

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