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Lubinda F. Walubita

Bio: Lubinda F. Walubita is an academic researcher from Texas A&M Transportation Institute. The author has contributed to research in topics: Asphalt & Asphalt concrete. The author has an hindex of 24, co-authored 178 publications receiving 2315 citations. Previous affiliations of Lubinda F. Walubita include Texas A&M University System & Universidad del Norte, Colombia.


Papers
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TL;DR: In this paper, the authors provide a review assessment of the current status of the brewery wastewater treatment processes including potential applications for reuse, and provide recommendations for future developments, as well as discuss key challenges for both the treatment and reuse of brewery wastewater.

269 citations

Journal ArticleDOI
TL;DR: In this article, a performance-based PG binder test, Multiple Stress Creep and Recovery (MSCR), was proposed to supplement the conventional Dynamic Shear Rheometer (DSR) test.

122 citations

Journal ArticleDOI
TL;DR: A qualitative comparison of the human health effects of both residual CNTs and traditional water treatment chemicals is given in this paper because they are both used for water treatment and purification.

94 citations

Journal ArticleDOI
TL;DR: In this paper, the authors compared flow number (FN), dynamic modulus (DM), and uniaxial repeated load permanent deformation (RLPD) laboratory tests, used to characterize the HMA mix rutting resistance potential, and establish if they could be reasonably related to each other.

86 citations

Journal ArticleDOI
TL;DR: The use of coal as a low-cost adsorbent in water and wastewater treatment processes is discussed in this article, where the authors show that although the pollutant exchange capacities of various types of coal-based adsorbents are significantly lower in comparison to other forms of adorbents, the substantially lower cost of coal shows a great potential for the utilization of coal, as a means to remove a range of pollutants from wastewater effluents.
Abstract: Coal, just like other fossil fuels such as oil and natural gas, is mainly used as a non-renewable source of energy. It is a physically unique mineral resource almost totally composed of organic matter (carbon), and a smaller percentage of elements such as hydrogen, oxygen, sulphur, and nitrogen. It is believed that underground coal deposits formed about 250–300 million years ago, when much of the Earth was a swamp covered with thick forest and plant growth. This review explores the use of coal, not as an energy source used for generating electricity, but as a low cost adsorbent in water and wastewater treatment processes. In fact, today, coal-based adsorbents still attract considerable interest in their usage. The review critically analyses the chemical composition, ion-exchange and sorption properties of coal. The use of the as-received coals, demineralized coals, sulphonated coals, calcium-loaded coals, chitosan-doped coals, activated carbon, coal fly ash, and coal fly ash derived-zeolite has also been extensively discussed. It is evident from this review that although the pollutant exchange capacities of various types of coal-based adsorbents are significantly lower in comparison to other forms of adsorbents, the substantially lower cost of coal shows a great potential for the utilization of coal as a means to remove a range of pollutants from water and wastewater effluents. However, due to the scarcity of consistent cost information, cost comparisons are difficult to make, and consequently, in this review, such comparisons were not done for the coal-based adsorbents.

70 citations


Cited by
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Journal ArticleDOI
TL;DR: The analysis of time series: An Introduction, 4th edn. as discussed by the authors by C. Chatfield, C. Chapman and Hall, London, 1989. ISBN 0 412 31820 2.
Abstract: The Analysis of Time Series: An Introduction, 4th edn. By C. Chatfield. ISBN 0 412 31820 2. Chapman and Hall, London, 1989. 242 pp. £13.50.

1,583 citations

Journal ArticleDOI
TL;DR: In this article, the authors provide a sketch about treatment technologies followed by their heavy metal capture capacity from industrial effluent, the treatment performance, their remediation capacity and probable environmental and health impacts were deliberated in this review article.
Abstract: The controversy related to the environment pollution is increasing in human life and in the eco-system. Especially, the water pollution is growing rapidly due to the wastewater discharge from the industries. The only way to find the new water resource is the reuse of treated wastewater. Several remediation technologies are available which provides a convenience to reuse the reclaimed wastewater. Heavy metals like Zn, Cu, Pb, Ni, Cd, Hg, etc. contributes various environmental problems based on their toxicity. These toxic metals are exposed to human and environment, the accumulation of ions takes place which causes serious health and environmental hazards. Hence, it is a major concern in the environment. Due to this concern, the significance of developing technology for removing heavy metals has been increased. This paper contributes the outline of new literature with two objectives. First, it provides the sketch about treatment technologies followed by their heavy metal capture capacity from industrial effluent. The treatment performance, their remediation capacity and probable environmental and health impacts were deliberated in this review article. Conclusively, this review paper furnishes the information about the important methods incorporated in lab scale studies which are required to identify the feasible and convenient wastewater treatment. Moreover, attempts have been made to confer the emphasis on sequestration of heavy metals from industrial effluent and establish the scientific background for reducing the discharge of heavy metals into the environment.

1,040 citations

Journal ArticleDOI
TL;DR: This critical review discusses the drivers, incentives, technologies, and environmental impacts of zero liquid discharge, and highlights the evolution of ZLD from thermal- to membrane-based processes, and analyzes the advantages and limitations of existing and emerging ZLD technologies.
Abstract: Zero liquid discharge (ZLD)—a wastewater management strategy that eliminates liquid waste and maximizes water usage efficiency — has attracted renewed interest worldwide in recent years. Although implementation of ZLD reduces water pollution and augments water supply, the technology is constrained by high cost and intensive energy consumption. In this critical review, we discuss the drivers, incentives, technologies, and environmental impacts of ZLD. Within this framework, the global applications of ZLD in the United States and emerging economies such as China and India are examined. We highlight the evolution of ZLD from thermal- to membrane-based processes, and analyze the advantages and limitations of existing and emerging ZLD technologies. The potential environmental impacts of ZLD, notably greenhouse gas emission and generation of solid waste, are discussed and the prospects of ZLD technologies and research needs are highlighted.

621 citations

Journal ArticleDOI
TL;DR: A review of the state-of-the-art of acid mine drainage can be found in this article, where the authors critically analyze the work performed in recent years on its occurrence, effects (on human health, plant life and aquatic species), and summarizes the remediation approaches taken so far to overcome the problem of AMD.
Abstract: Acid mine drainage (AMD) or acid rock drainage (ARD) is considered as one of the main pollutants of water in many countries that have historic or current mining activities. Its generation, release, mobility, and attenuation involves complex processes governed by a combination of physical, chemical, and biological factors. In general, AMD is produced by the oxidative dissolution of sulphide minerals. This paper reviews the current state-of-the-art of AMD. It critically analyses the work performed in recent years on its occurrence, effects (on human health, plant life and aquatic species), and summarizes the remediation approaches taken so far to overcome the problem of AMD. The challenges faced in tackling the remediation of AMD have also been considered. Commercially developed projects that are either in operation, being piloted or under evaluation have also been discussed. Finally, the paper speculates on future directions or opportunities that deserve exploration.

437 citations

BookDOI
TL;DR: In this article, the characterization of cementitiously stabilized layers and the properties that influence pavement performance are discussed, as well as performance-related procedures for characterizing these layers and performance-prediction models for incorporation into the mechanistic-empirical pavement analysis methods.
Abstract: This report presents information on the characterization of cementitiously stabilized layers and the properties that influence pavement performance. It also contains recommended performance-related procedures for characterizing these layers and performance-prediction models for incorporation into the mechanistic–empirical pavement analysis methods. Individual chapters highlight pavement distresses of hot-mix asphalt pavements and concrete pavements, laboratory tests and model development, and model calibration. The material contained in the report will be of immediate interest to state materials, pavement, and construction engineers and others involved in the different aspects of pavement design and construction.

270 citations