Open Access
Rishabh Mudgal
Megha Gupta
Govind Madhav
- Student University School of Chemical Tech. Guru Gobind Singh Indraprastha University Delhi India
- Student University School of Chemical Tech. Guru Gobind Singh Indraprastha University Delhi India
- Student University School of Chemical Tech. Guru Gobind Singh Indraprastha University Delhi India
Abstract
The biofilm matrix is a mixture of secreted polymers, metabolites and nutrients ingested, lysis solution products, and even particle debris. This matrix, which is polyanionic by nature, is essential for the activated carbon of metal cations. In this study, the heavy metal adsorption mechanism in biofilms is modelled in one spatial dimension. The numerical method is a free-boundary value issue for nonlinear parabolic and quadratic partial differential equations. Parabolic equations control the evolution of the substrate, while hyperbolic equations control the growth of cellulose and exogenous polymeric substances (EPS). Every equation is related to every other equation. The model is allencompassing and may be used to a wide range of microbe populations, EPS, and substrates. In numerical analysis, the spatial rivalry between heterotrophic and autotrophic organisms using oxygen as a common substrate is considered. The model can replicate the transport and adsorption of heavy metals into biofilms as well as the distribution pattern of microbial species and substrate concentrations. It can also represent the dynamics of biofilm development. Using the approach of characteristics, numerical simulations are created for typical cases. Results show that the model can capture the key aspects of the heavy metal adsorption system on EPS. The biosorption procedure considers several process variables, including concentration, contact duration, ionic strength, energy, pores, pore volume, available sites, velocity, and factors related to activity, diffusion, and dispersion. In this review article, we outline the main physical and chemical mechanisms in the adsorbents of heavy metals on numerous types of widely used biosorbents. The most popular dynamic and steady state mathematical models for bioremediation in group and resolved columns are compiled here. Coupled nonlinear partial differential equations are produced because of the mathematical modelling of dynamic process models. It is recommended to use approximate approaches to research the sensitive analysis of key parameters.
Keywords: Heavy metal Ion, adsorption, wastewater, mathematical model
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International Journal of Polymer Science & Engineering
| Volume | |
| Received | July 21, 2022 |
| Accepted | July 23, 2022 |
| Published | January 23, 2023 |