Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies

Algal blooms have a wide variety of detrimental effects on both the aquatic environment and human activities unfortunately, including a decrease in dissolved oxygen levels in water. In this study, a nonlinear mathematical model has been developed to study the effects of algal bloom on the depletion...

Full description

Saved in:
Bibliographic Details
Main Authors: B. M. Rakibul Hasan, Md. Shaiful Islam, Pulak Kundu, Uzzwal Kumar Mallick
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2023/2335570
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850167909507137536
author B. M. Rakibul Hasan
Md. Shaiful Islam
Pulak Kundu
Uzzwal Kumar Mallick
author_facet B. M. Rakibul Hasan
Md. Shaiful Islam
Pulak Kundu
Uzzwal Kumar Mallick
author_sort B. M. Rakibul Hasan
collection DOAJ
description Algal blooms have a wide variety of detrimental effects on both the aquatic environment and human activities unfortunately, including a decrease in dissolved oxygen levels in water. In this study, a nonlinear mathematical model has been developed to study the effects of algal bloom on the depletion of dissolved oxygen in eutrophic water sources considering nutrient concentrations, density of algal population, detritus, and concentration of dissolved oxygen as variables. The model’s existence and uniqueness, stability at the equilibrium points, and characteristics with respect to state variables have been performed as some parts of analytical solution, whereas the numerical solution has been performed using the Runge–Kutta 4th order technique. The findings of this research reveal that an increase in the quantity of nutrients causes an algal bloom, which in turn lowers the equilibrium level of dissolved oxygen. However, higher levels of detritus (> 4.7 mg/litre) are hazardous to the generation of dissolved oxygen in water systems. Maximum detritus of 1.0 mg/liter is required for fast algal and dissolved oxygen growth in water bodies; beyond that, algal and dissolved oxygen growth rates are lower. Therefore, increasing public awareness is an essential step in controlling this growing issue; failing to do so will result in problems for our water supply, which will in turn pose a danger to our ecosystem.
format Article
id doaj-art-de9e924245fc4e30a77993d8f9338344
institution OA Journals
issn 2314-4785
language English
publishDate 2023-01-01
publisher Wiley
record_format Article
series Journal of Mathematics
spelling doaj-art-de9e924245fc4e30a77993d8f93383442025-08-20T02:21:06ZengWileyJournal of Mathematics2314-47852023-01-01202310.1155/2023/2335570Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water BodiesB. M. Rakibul Hasan0Md. Shaiful Islam1Pulak Kundu2Uzzwal Kumar Mallick3Mathematics DisciplineMathematics DisciplineMathematics DisciplineMathematics DisciplineAlgal blooms have a wide variety of detrimental effects on both the aquatic environment and human activities unfortunately, including a decrease in dissolved oxygen levels in water. In this study, a nonlinear mathematical model has been developed to study the effects of algal bloom on the depletion of dissolved oxygen in eutrophic water sources considering nutrient concentrations, density of algal population, detritus, and concentration of dissolved oxygen as variables. The model’s existence and uniqueness, stability at the equilibrium points, and characteristics with respect to state variables have been performed as some parts of analytical solution, whereas the numerical solution has been performed using the Runge–Kutta 4th order technique. The findings of this research reveal that an increase in the quantity of nutrients causes an algal bloom, which in turn lowers the equilibrium level of dissolved oxygen. However, higher levels of detritus (> 4.7 mg/litre) are hazardous to the generation of dissolved oxygen in water systems. Maximum detritus of 1.0 mg/liter is required for fast algal and dissolved oxygen growth in water bodies; beyond that, algal and dissolved oxygen growth rates are lower. Therefore, increasing public awareness is an essential step in controlling this growing issue; failing to do so will result in problems for our water supply, which will in turn pose a danger to our ecosystem.http://dx.doi.org/10.1155/2023/2335570
spellingShingle B. M. Rakibul Hasan
Md. Shaiful Islam
Pulak Kundu
Uzzwal Kumar Mallick
Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
Journal of Mathematics
title Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
title_full Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
title_fullStr Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
title_full_unstemmed Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
title_short Modeling the Effects of Algal Bloom on Dissolved Oxygen in Eutrophic Water Bodies
title_sort modeling the effects of algal bloom on dissolved oxygen in eutrophic water bodies
url http://dx.doi.org/10.1155/2023/2335570
work_keys_str_mv AT bmrakibulhasan modelingtheeffectsofalgalbloomondissolvedoxygenineutrophicwaterbodies
AT mdshaifulislam modelingtheeffectsofalgalbloomondissolvedoxygenineutrophicwaterbodies
AT pulakkundu modelingtheeffectsofalgalbloomondissolvedoxygenineutrophicwaterbodies
AT uzzwalkumarmallick modelingtheeffectsofalgalbloomondissolvedoxygenineutrophicwaterbodies