Impact of environmental changes and human activities on bacterial diversity of lakes

Islam, M. M. Majedul; Shafi, Sana; Bandh, Suhaib A.; Shameem, Nowsheen

doi:10.1016/b978-0-12-817495-1.00003-7

Cited by 27 publications

(18 citation statements)

References 110 publications

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“…The COD analysis is performed to measure the effectiveness of the organic compounds' degradation. High concentrations of COD reveal the existence of all types of organic compounds, both biodegradable and non‐biodegradable, and therefore, the contamination of waters 49 . Therefore, it is often used to monitor wastewater treatment efficiency and is considered one of the leading indicators to assess an effluent's impact on the receiving hydric resources.…”

Section: Resultsmentioning

confidence: 99%

An autochthonous aerobic bacterial community and its cultivable isolates capable of degrading fluoxetine

Palma

Shylova

Carlier

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND Fluoxetine is an antidepressant and recalcitrant fluorine pharmaceutical that is poorly biodegraded, so it enters the hydric resources and causes hazardous effects to aquatic environments. According to these fluoxetine features, the main aim of the present research was to find resistant bacteria in environmental samples with a high degradation efficiency. RESULTS The results obtained from raw municipal wastewater spiked with fluoxetine and inoculated with aerobic sludge from a Portuguese wastewater treatment plant under highly aerobic conditions showed that more than half and ≈89% of the drug was degraded after 48 and 144 h, respectively. During the assay, the initial population (mainly composed of Arcobacter, Bacteroides, and Macellibacteroides) shifted with an increase of members of the Acinetobacter, Rheinheimera, Shewanella, Pseudomonas, Methylobacillus, Piscinobacter genera and Aeromonadales order and the Pseudomonadaceae family, all of which were likely responsible for fluoxetine biodegradation. From the same sludge, six bacterial isolates were selected and identified as follows: Pseudomonas putida, Enterobacter ludwigii, Pseudomonas nitritireducens, Alcaligenes faecalis, Pseudomonas aeruginosa, and Pseudomonas nitroreducens; all of them grew with fluoxetine as sole carbon source. Pseudomonas nitroreducens showed the highest removal of 55 ± 1% at 20 mg L–1 fluoxetine after 24 h. CONCLUSION An autochthonous aerobic bacterial community and its cultivable isolates showed the capacity to biodegrade fluoxetine. Biodegradation, rather than adsorption, appears to play the main role in the fluoxetine removal in aerobic conditions using bacteria simply obtained from an environmental sample. As far as is known, those bacteria are reported for the first time as fluoxetine biodegraders; thus, these bacteria are a promising option to integrate into new bioremediation processes aiming at the removal of fluoxetine. © 2021 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

An autochthonous aerobic bacterial community and its cultivable isolates capable of degrading fluoxetine

Palma

Shylova

Carlier

et al. 2021

J of Chemical Tech & Biotech

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“…A high correlation is also observed between COD and other parameters such as turbidity, color, and TSS, with a correlation index ranging from 0.922 to 0.990. In general, COD is an important indicator of water quality, which can be defined as a measure of the amount of oxygen being consumed during the oxidation process of oxidizable organic matter in the presence of a strong oxidizing agent; it is generally used to indirectly quantify the amount of organic matter in water [ 54 ], of which the presence of turbidity, color, and TSS in water is a result of suspended and dissolved organic matter.…”

Section: Resultsmentioning

confidence: 99%

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

et al. 2020

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Despite the potential applicability of the combination between aluminium (anode) and graphite or titanium (cathode) for poultry slaughterhouse wastewater treatment, their technical and economic feasibilities have not been comprehensively captured. In this study, aluminium (anode) and graphite and titanium as cathode electrode materials were investigated and compared in terms of their performance on poultry slaughterhouse wastewater treatment. The wastewater samples collected from the Izhevsk Production Corporative (PC) poultry farm in Kazakhstan were treated using a lab-based electrochemical treatment plant and then analyzed after every 20 and 40 min of the treatment processes. Cost analysis for both electrode combinations was also performed. From the analysis results, the aluminium–graphite electrode combination achieved high removal efficiency from turbidity, color, nitrite, phosphates, and chemical oxygen demand, with removal efficiency ranging from 72% to 98% after 20 min, as well as 88% to 100% after 40 min. A similar phenomenon was also observed from the aluminium–titanium electrode combination, with high removal efficiency achieved from turbidity, color, total suspended solids, nitrite, phosphates, and chemical oxygen demand, ranging from 81% to 100% after 20 min as well as from 91% to 100% after 40 min. This means the treatment performances for both aluminium–graphite and aluminium–titanium electrode combinations were highly affected by the contact time. The general performance in terms of removal efficiency indicates that the aluminium–titanium electrode combination outperformed the aluminium–graphite electrode combination. However, the inert character of the graphite electrode led to a positive impact on the total operating cost. Therefore, the aluminium–graphite electrode combination was observed to be cheaper than the aluminium–titanium electrode combination in terms of the operating cost.

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“…Chemical oxygen demand (COD) is the chemical decomposition of organic as well as inorganic contents present in water and it was measured in mg/l. High COD indicates presence of both biodegradable and non-biodegradable organic materials (Islam et al 2019). If the BOD and COD ratio for non-treated wastewater is 0.5 or greater than 0.5, the wastewater considered to be easily treatable through biological process.…”

Section: Chemical Oxygen Demand (Cod)mentioning

confidence: 99%

Water quality analysis of old and new Phuleli Canal for irrigation purpose in the vicinity of Hyderabad, Pakistan

Panhwar

Keerio

et al. 2022

Water Practice and Technology

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Irrigation-water quality plays an important role in agriculture productivity. In this study, water quality of the old and new Phuleli canal located in Hyderabad, Pakistan, was characterized for irrigation purpose. Water samples were collected from four different locations of each old and new Phuleli canal. Twelve different irrigation-water quality standards were assessed under the study: pH, Electricity Conductivity, Biochemical Oxygen Demand (BOD), Total Dissolved Solids, Chemical Oxygen Demand (COD), Dissolved Oxygen, Calcium, Magnesium, Sodium, Potassium, Sodium adsorption ratio, Fecal Coliforms. The results showed that the Electricity Conductivity ranges from 910–3,090 MS/cm, Potassium 13–112 mg/l, BOD 61–285 mg/l, COD 97–361 mg/l and Fecal Coliforms 400–2,350 MPN/100 ml concentrations in water of both canals were higher than the National Environmental Quality Standards permissible limits. It was found that the water quality parameters were higher than the permissible pollution level of canal water for the use of irrigation in agriculture.

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Impact of environmental changes and human activities on bacterial diversity of lakes

Cited by 27 publications

References 110 publications

An autochthonous aerobic bacterial community and its cultivable isolates capable of degrading fluoxetine

An autochthonous aerobic bacterial community and its cultivable isolates capable of degrading fluoxetine

Performance of Graphite and Titanium as Cathode Electrode Materials on Poultry Slaughterhouse Wastewater Treatment

Water quality analysis of old and new Phuleli Canal for irrigation purpose in the vicinity of Hyderabad, Pakistan

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