Browsing by Author "Odunlami Olayemi A."

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Application of mass transfer in the pulp and paper Industry􀀀 overview, processing, challenges, and prospects
(Results in Engineering (Elsevier), 2023) Odunlami Olayemi A.; Amoo Temiloluwa E.; Adisa Hassan A.; Elehinafe Francis B.; Oladimeji Temitayo E.
This study reviews the mass transfer with a focus on the challenges, benefits, processing and prospects in the pulp and paper industry with a scope limited to Kraft pulping which is the dominant pulping process worldwide. The mass transfer usually occurs in various processes that deal with reactions, separation, and heat transfer. All these aforementioned processes occur in the production of pulp and paper from their raw materials. The application of mass transfer to these processes is of great importance in setting target yields, and specifications and improving efficiency. The major processes where mass transfer principles are applied are drying, chemical washing, pulp digestion and pulp bleaching respectively. Understanding the requirements and targets of each of these processes in combination with the mass transfer principles helps in the development of models and design of equipment that operate based on the developed models in meeting the required targets. Studies have indicated that mass and energy balances cannot be done independently in meeting the required targets and equipment design. The drying and stripping of lignocellulosic components of the feed-in paper manufacture constitute a large part of the challenges faced by the industry. Drying techniques have been considered to be inefficient, and lignocellulosic by-products are known to contain toxic components. Green chemistry production processes and newer drying techniques were indicated as possible solutions. It is expected that researchers and investors would find this article useful.
Microbial desalination cell technique - A review
(South African Journal of Chemical Engineering (Elsevier), 2023) Odunlami Olayemi A.; Vershima Denen A.; Tagbo Chukwudi V.; Ogunlade Stephen; Nkongho Sonia
Saltwater desalination has become a highly demanded technique for the production of clean water. As a result of the growing population of the world, the demand for healthy water for consumption and other human activities has grown, over the years. Some Industries also require water for some of their operational processes. Two major types of desalination techniques exist and they include thermal desalination and membrane desalination. Several methods have been employed to control the salt content of water, and they include Reverse Osmosis (RO), Electro-Dialysis (ED), Membrane Distillation (MO), Multi-Stage Flash (MSF) process, Multi-Effect Distillation (MED), and vapor-compression distillation (VC). Microbial fuel cell (MFC) technology is a new way to treat wastewater and it serves the purpose of power generation. It involves the use of microorganisms in the anodic chamber of a fuel cell to break down matter, thus releasing electrons to the anode that goes to the cathode (in the cathodic department). This creates a potential difference across the electric circuit. Microbial desalination cell (MDC) technology utilizes this method to remove salt from saltwater and generate electricity. It comprises three compartments, namely: anodic chamber, desalination chamber, and cathodic chamber. This study focused on MDCs and their various configurations of it. It also identified various ways to advance the technology. MDCs are excellent in salt removal from saltwater and electricity generation and can be scaled up for large-scale industrial processes.
Review on the impact of heavy metals from industrial wastewater effluent and removal technologies
(REVIEW ARTICLEVolume 10, Issue 23, 2024-12) Oladimeji T. E.; Oyedemi M.; Emetere M. E.; Agboola O.; Adeoye J. B.; Odunlami Olayemi A.
The incidence of water pollution in developing countries is high due to the lack of regulatory policies and laws that protect water bodies from anthropogenic activities and industrial wastewater. Industrial wastewater contains significant amounts of heavy metals that are detrimental to human health, aquatic organisms, and the ecosystem. The focus of this review was to evaluate the sources and treatment methods of wastewater, with an emphasis on technologies, advantages, disadvantages, and innovation. It was observed that conventional methods of wastewater treatment (such as flotation, coagulation/flocculation, and adsorption) had shown promising results but posed certain limitations, such as the generation of high volumes of sludge, relatively low removal rates, inefficiency in treating low metal concentrations, and sensitivity to varying pH. Recent technologies like nanotechnology, photocatalysis, and electrochemical coagulation have significant advantages over conventional methods for removing heavy metals, including higher removal rates, improved energy efficiency, and greater selectivity for specific contaminants. However, the high costs associated with these advanced methods remain a major drawback. Therefore, we recommend that future developments in wastewater treatment technology focus on reducing both costs and waste generation.