Waste-tire-derived crumb rubber was utilized as filter media to develop an efficient filter for ballast water treatment. In this study, the effects of coagulation, pressure filtration and dual-media (gravity) filtration on the performance of the crumb rubber filtration were investigated. The removal efficiencies of turbidity, phytoplankton and zooplankton, and head loss development were monitored during the filtration process. The addition of a coagulant enhanced the removal efficiencies of all targeted matter, but resulted in substantial increase of head loss. Pressure filtration increased filtration rates to 220 m(3)h(-1)m(-2) for 8-h operation and improved the zooplankton removal. Dual-media (crumb rubber/sand) gravity filtration also improved the removal efficiencies of phytoplankton and zooplankton over mono-media gravity crumb rubber filtration. However, these filtration techniques alone did not meet the criteria for removing indigenous organisms from ballast water. A combination of filtration and disinfection is suggested for future studies.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.chemosphere.2008.11.048 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring the Human Health Impact of Artificial Turf Worldwide: A Systematic Review.
Environ Health Insights
December 2024
Faculty of Health and Life Sciences, University of Exeter Medical School, University of Exeter, Exeter, UK.
The growing use of artificial turf in place of natural turf in residential, recreational and commercial settings has raised concerns regarding its potential impact on human health. A systematic review of databases revealed 5673 articles of which, 30 were deemed eligible. Those performing total concentration analyses, bioaccessibility analyses or human health risk assessments (HHRAs) of artificial turf fibres or crumb rubber infill were of interest.
View Article and Find Full Text PDFWaste engine oil as a sustainable approach for asphalt rejuvenation and modification: A review.
Heliyon
December 2024
Department of Civil Engineering, Faculty of Engineering, Balochistan University of Information Technology, Engineering, and Management Sciences, 87300, Quetta, Pakistan.
The significant growth in road infrastructure worldwide over the last decade has resulted in a notable increase in the demand for asphalt binder. However, the utilization of asphalt binder in the road industry poses challenges to environmental sustainability and economic standpoints. The application of vehicular loads and exposure to environmental factors throughout the service life of roads contribute to the deterioration of binder properties, such as hardening and aging, ultimately leading to premature road failure.
View Article and Find Full Text PDFPerformance of Crumb Rubber Tire-Modified Bitumen for Malaysian Climate Regions.
Materials (Basel)
November 2024
Institute of Transportation, Faculty of Civil and Environmental Engineering, TU Wien, Karlsplatz 13/E230, 1040 Vienna, Austria.
Researchers are increasingly concerned about the vast amounts of waste rubber tires produced globally, which contribute significantly to environmental pollution. The potential of incorporating waste rubber tires to modify bitumen has garnered considerable interest. This study assesses pavement design temperatures according to SUPERPAVE standards for representative Malaysian regions.
View Article and Find Full Text PDFStudy on the Effect of SBS/HVA/CRM Composite-Modified Asphalt on the Performance of Recycled Asphalt Mixtures.
Polymers (Basel)
November 2024
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China.
Article Synopsis
- This study tests composite modification techniques to enhance the performance of recycled asphalt, using high-viscosity agents (HVA) and crumb rubber materials (CRM) combined with styrene-butadiene-styrene (SBS) to create modified asphalt samples.
- The performance of four types of asphalt mixtures, including virgin and three recycled mixtures with 50% reclaimed asphalt content, was analyzed through various tests, revealing that higher kinematic viscosity leads to increased optimum asphalt content and enhanced adhesion in dry conditions.
- Results indicate that while SBS-CRM significantly boosts moisture sensitivity and low-temperature cracking resistance compared to other modified asphalts, the choice of modification method should align with climate and loading conditions for optimal performance and sustainability.
Expanded Polystyrene/Tyre Crumbs Composites as Promising Aggregates in Mortar and Concrete.
Polymers (Basel)
November 2024
School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
A composite material comprising expanded polystyrene (EPS), granulated tyre rubber (GTR), and a compatibilizer is demonstrated as a possible replacement for fine and coarse agglomerates in mortar and concrete systems, respectively. Two different polymer blending processes (solvent/low shear blending and melt/high shear blending) are used, and the resulting composite material utilized as aggregate to replace sand and cement for mortar and concrete block development. Critical properties such as workability, compressive and flexural strengths, water absorption, bulk density, and porosity are measured before and after aggregate replacement.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!