Factors influencing the alteration of microbial and heavy metal characteristics of river systems in the Niger Delta region of Nigeria

Izah, Sylvester Chibueze; Aigberua, Ayobami Omozemoje; Srivastav, Arun Lal

doi:10.1016/b978-0-323-85045-2.00005-4

Cited by 32 publications

(8 citation statements)

References 34 publications

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“…The colors and heavy metals used in the processes are subsequently discharged into water streams with effluents. 1,2 Pollution with heavy metals can cause toxic effects on humans, animals, and other organisms at micro levels. 3 For example, excess cadmium is associated with nephrotoxic effects and bone damage.…”

Section: Introductionmentioning

confidence: 99%

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

Aswathy,

Sen,

Mongaraj

et al. 2024

J of Applied Polymer Sci

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Industrial wastewater from various manufacturing sectors poses a significant environmental concern due to the release of dyes, heavy metals, and pollutants into natural water streams. Effective treatment of large volumes of industrial wastewater is crucial to mitigate this issue. Conventional industrial wastewater filtration systems often prove to be inefficient, necessitating the exploration of alternative and cost‐effective water filtration methods. In this study, we drew inspiration from the natural adsorption and purification properties of corncob to develop a novel green composite membrane filter. The composite membrane filters, named MCAPCB and MCATPCB, were formulated by incorporating powdered corncob (PCB) and alkali/hydrogen peroxide‐treated powdered corncob (TPCB) into cellulose acetate. The adsorption properties of the composite filters were evaluated using UV–Vis spectrophotometry for dye adsorption and inductively coupled plasma optical emission spectroscopy (ICP‐OES) and atomic absorption spectroscopy (AAS) for heavy metal adsorption. The results demonstrated that MCATPCB20, incorporating 20 wt% TPCB, exhibited remarkable performance in the removal of methylene blue dye, with an adsorption efficiency of 97.46%. In comparison, MCAPCB20, incorporating 20 wt% PCB, achieved a dye adsorption efficiency of 80.15%. Moreover, MCATPCB20 displayed exceptional heavy metal removal capabilities, effectively rejecting 98% and 95% of cadmium and lead, respectively, from water samples containing 1 ppm of each metal. The composite filter membranes containing 20 wt% TPCB exhibited superior adsorption efficiency, flexibility, and stability. This enhanced performance can be attributed to the higher carboxyl content in TPCB, achieved through alkali treatment, which significantly increased the adsorption capacity of MCATPCB20. Characterization studies employing XRD, SEM, contact angle, BET, ICP‐OES, and UV measurements further supported the efficacy of MCATPCB as an effective filter system for water purification.

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Section: Introductionmentioning

confidence: 99%

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

Aswathy,

Sen,

Mongaraj

et al. 2024

J of Applied Polymer Sci

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“…The aquatic ecosystem of the area includes the sea, rivers, streams, creeks, etc. [10][11][12][13][14]. So much biodiversity is found in the Niger Delta aquatic ecosystem, including fisheries (both fins and shells), aquatic mammals, reptiles, insects, plankton, etc.…”

Section: Introductionmentioning

confidence: 99%

Implications of Artisanal Crude Oil Refining on Sustainable Food Production in the Niger Delta Region of Nigeria

Richard

Izah

Ogwu

2022

J Environ Bioremed Toxicol

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The rate of environmental degradation is an increasing trend globally and most especially in many developing nations where it has food production implications. This deterioration in environmental quality is mostly attributed to population growth, urbanization, industrialization, and unsustainable agricultural practices. The Niger Delta region of Nigeria is the oil and gas province of Nigeria. The activities of illegal crude oil refiners, theft, vandalism, etc. are common within the region, thereby leading to the degradation of major biophysical environmental matrices and conditions. Plant and fish-based diets are the major food sources for humans within the Niger Delta region. This review focuses on the implications of artisanal crude oil refining (ACOR) on sustainable food production in the Niger Delta region of Nigeria. The review found that the activities of artisanal crude oil refiners are harming the vegetation cover, altering the physicochemical and microbial composition of the soil, and releasing hydrocarbons into the environment, which are absorbed by vegetation leading to an increase in human and biodiversity contamination from ACOR as well as loss of arable farmlands, uncontrolled bush burning, and increased cases of soil erosion. Therefore, ACOR activities are having negative effects on food security, which is characterized by food availability, accessibility, stability, and utilization. Hence, there is a need to curtail the activities of ACOR through the issuance of operational liens followed by stricter regulations and monitoring of harmful emissions released during the processes.

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“…The color and heavy metals involved with the same process are later spilled into water streams along with e uents (Izah et al 2022;Oller et al 2011). Microlevels of heavy metals produce toxic effects in humans, animals, and other organisms (Briffa et al 2020).…”

Section: Introductionmentioning

confidence: 99%

All-green Cellulose acetate/corn-cob Composite Membrane Filter with Combative Dye and Heavy Metal Adsorption Property

Aswathy¹,

Sen²,

Mongaraj³

et al. 2022

Preprint

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From ancient times water bodies witnessed expel of a large number of pollutants and heavy metals from the nearest industries. To alleviate this concern wastewater from all industrial sectors requires treatment before discharging into natural water streams. Inspired by the natural adsorbent ‘corn-cob’ a novel all-green corn-cob/cellulose acetate (MCAPCB) composite membrane filter has been developed. The corn-cob, a food waste obtained after the consumption of corn acts as a filler as well as an adsorbent in the cellulose acetate membrane (MCA). The corn cob powder (PCB) and the alkali/hydrogen peroxide treated corn cob powder (TPCB) were incorporated into the MCA at various compositions and comparative dye adsorption capacities were analyzed. It was observed that 20 % PCB can be incorporated into the cellulose matrix without affecting the flexibility of the membrane. 0.5 grams of 20% TPCB incorporated CA membrane (MCATPCB20) achieved the highest methylene blue adsorption performance up to 97.46. 20% PCB incorporated CA membrane (MCAPCB20) exhibited adsorption of methylene blue up to 80.15% from the water. The adsorption efficiency of MCATPCB20 has been enhanced due to the increase in carboxyl content after the bleaching of PCB. The atomic absorption spectroscopy (AAS) and inductively coupled plasma spectroscopy (ICP-MS) studies of feed and filtrate solutions after microfiltration through MCATPCB20 proved that the developed films can be harnessed into an excellent material for cadmium (Cd) and lead (Pb) heavy metal adsorption. These results reveal that MCATPCB is a green, sustainable, effective, and efficient filter system for water purification.

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Factors influencing the alteration of microbial and heavy metal characteristics of river systems in the Niger Delta region of Nigeria

Cited by 32 publications

References 34 publications

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

Implications of Artisanal Crude Oil Refining on Sustainable Food Production in the Niger Delta Region of Nigeria

All-green Cellulose acetate/corn-cob Composite Membrane Filter with Combative Dye and Heavy Metal Adsorption Property

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