Water Quality Assessment and Identification of Novel Bacterial Strains in the Halda River Water of Bangladesh

IF 3.5 Q2 ENVIRONMENTAL SCIENCES

Air Soil and Water Research Pub Date : 2022-01-01 DOI:10.1177/11786221221135164

M. Rahman, J. Ferdouse, A. Ullah, Md. Towhid Hossain

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引用次数: 2

Abstract

The present study was undertaken to determine a holistic picture of pollution comprising the physicochemical and microbiological properties of the Halda River water of Bangladesh. A total 45 samples were collected from five sampling sites. Different water quality parameters including temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), total dissolved solids (TDS), total solids (TS), turbidity, concentration of heavy metals, total bacterial count (TBC), total coliform (TC), and fecal coliforms (FC) were assessed. Isolation and identification of 10 bacterial isolates was done using their cultural, morphological, physiological, biochemical characteristics, and 16S rRNA gene sequencing analysis. Antibiotic sensitivity of selected isolates was also investigated. DO (6–14.67 mgL−1), BOD (2–8 mgL−1), COD (40.43–107.63 mgL−1), TSS (818.33–3,180 mgL−1), TS (1,039.33–3,897.33 mgL−1), and turbidity (40.09–355 NTU), TBC (7.2 × 103–3.83 × 105 CFU/mL), FC (0.7 × 102–3.9 × 103/100 mL) were measured in both non breeding and breeding time that implies the pollution of the Halda river water. Heavy metal concentration was found within standard limit. Among the isolates, Bacillus wiedmannii strain HSA2 (accession no. MT102620) showed multidrug-resistant, which is a matter of great concern. According to the study findings, the water quality of the Halda river is being deteriorated, posing a threat to public health as well as the aquatic environment.

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孟加拉国哈尔达河水质评价及新型细菌菌株鉴定

本研究旨在确定孟加拉国哈尔达河水污染的整体情况，包括其物理化学和微生物特性。共从五个采样点采集了45个样本。评估了不同的水质参数，包括温度、pH、溶解氧（DO）、生物需氧量（BOD）、化学需氧量（COD）、总悬浮固体（TSS）、总溶解固体（TDS）、总固体（TS）、浊度、重金属浓度、细菌总数（TBC）、总大肠菌群（TC）和粪大肠菌群。利用10株细菌的培养、形态、生理、生化特性和16S rRNA基因测序分析，对其进行了分离鉴定。还对所选分离株的抗生素敏感性进行了研究。DO（6-14.67 mgL−1），BOD（2–8 mgL−1），COD（40.43–107.63 mgL−1），TSS（818.33–3180 mgL−1），TS（1039.33–3897.33 mgL−1）和浊度（40.09–355 NTU），待定（7.2 × 103–3.83 × 105 CFU/mL）、FC（0.7 × 102–3.9 × 103/100mL），这意味着Halda河水的污染。重金属浓度在标准限度内。在分离物中，威曼氏芽孢杆菌HSA2菌株（登录号MT102620）表现出多重耐药性，这是一个值得关注的问题。根据研究结果，哈尔达河的水质正在恶化，对公众健康和水环境构成威胁。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Air Soil and Water Research ENVIRONMENTAL SCIENCES-

CiteScore

7.80

自引率

5.30%

发文量

审稿时长

8 weeks

期刊介绍： Air, Soil & Water Research is an open access, peer reviewed international journal covering all areas of research into soil, air and water. The journal looks at each aspect individually, as well as how they interact, with each other and different components of the environment. This includes properties (including physical, chemical, biochemical and biological), analysis, microbiology, chemicals and pollution, consequences for plants and crops, soil hydrology, changes and consequences of change, social issues, and more. The journal welcomes readerships from all fields, but hopes to be particularly profitable to analytical and water chemists and geologists as well as chemical, environmental, petrochemical, water treatment, geophysics and geological engineers. The journal has a multi-disciplinary approach and includes research, results, theory, models, analysis, applications and reviews. Work in lab or field is applicable. Of particular interest are manuscripts relating to environmental concerns. Other possible topics include, but are not limited to: Properties and analysis covering all areas of research into soil, air and water individually as well as how they interact with each other and different components of the environment Soil hydrology and microbiology Changes and consequences of environmental change, chemicals and pollution.