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Potential Applications of a Novel Ballast Water Pretreatment Device: Grinding Device

Journal of Marine Science and Engineering, 2021
To investigate the removal efficiency of the grinding device (GD) as a potential replacement for the pretreatment filtration device of ballast water, solid grinding and viability experiment were conducted according to a treatment flow rate of 5 tons ...
Bonggil Hyun, Hyung-Gon Cha, Yeong-Kyu An, Yong-Seok Park, Min-Chul Jang, Pung-Guk Jang, Kyoungsoon Shin   +6 more
doaj   +1 more source

Railway ballast performance: Recent advances in the understanding of geometry, distribution and degradation

Transportation Geotechnics, 2023
Railway ballast performance is dictated by a complex mix of mechanical properties. These effect its performance at the particle level for example in terms of particle degradation, but also at the track system level in terms of settlement and stability ...
Can Shi, Zhe Fan, D. Connolly, G. Jing, V. Markine, Yunlong Guo   +5 more
semanticscholar   +1 more source

Analysis of microplastics in ships ballast water and its ecological risk assessment studies from the Persian Gulf.

Marine Pollution Bulletin, 2023
Transport of ballast water is considered a significant vector for dispersion of different pollutants, including microplastics (MPs), throughout the world's oceans. However, there is limited information on MPs in ballast water.
Atefeh Zendehboudi, A. Mohammadi, S. Dobaradaran, Gabriel E De-la-Torre, B. Ramavandi, S. Hashemi, Reza Saeedi, Emran Moradpour Tayebi, Ahmad Vafaee, Amirhossein Darabi   +9 more
semanticscholar   +1 more source

A Laboratory Study of Pressure Distribution and Residual Settlements in Wide Grading Double Layer Railway Ballast under Long-Term Cyclic Loading [PDF]

Archives of Civil Engineering, 2020
Ballast layer has weighty share in the lifecycle costs of railway track. The strict standards and maintenance rules of ballast grading significantly contribute to the ballast costs.
Mykola Sysyn, Ulf Gerber, Olga Nabochenko, Stefan Dehne   +3 more
doaj   +1 more source

Toxicity of Antifouling Biocides and Wastes from Ships’ Surfaces during High-Pressure Water-Blasting Cleaning Activities in the Nauplii and Eggs of the Estuarine Copepod Paracalanus parvus sl

Journal of Marine Science and Engineering, 2022
Copepods, the dominant member of zooplankton and major grazers of phytoplankton in the pelagic ecosystem, are at risk from exposure to antifouling biocides.
Bonggil Hyun, Pung-Guk Jang, Kyoungsoon Shin, Moonkoo Kim, Ju-Hak Jung, Hyung-Gon Cha, Min-Chul Jang   +6 more
doaj   +1 more source

State-of-the-Art Review of Ground Penetrating Radar (GPR) Applications for Railway Ballast Inspection

Italian National Conference on Sensors, 2022
In the past 20 years, many studies have been performed on ballast layer inspection and condition evaluation with ground penetrating radar (GPR). GPR is a non-destructive means that can reflect the ballast layer condition (fouling, moisture) by analysing ...
Shilei Wang, G. Liu, G. Jing, Q. Feng, Hengbai Liu, Yunlong Guo   +5 more
semanticscholar   +1 more source

Characteristic and Relative Environmental Risk of Disinfection by Products Associated with Simple Glucose or Naturally Occurring Algal Organic Matter as Tested in Ballast Water Treatment System

Journal of Marine Science and Engineering, 2022
To prevent the invasion of alien species, the International Maritime Organization and the United States Costal Guard require that a ballast water management system (BWMS) be installed on ships to treat the ballast water before discharging it.
Pung-Guk Jang, Hyung-Gon Cha, Min-Chul Jang, Bonggil Hyun, Tae Seob Choi, Younseok Kang, Kyoungsoon Shin   +6 more
doaj   +1 more source

Ballast fouling inspection and quantification with ground penetrating radar (GPR)

International Journal of Rail transportation, 2022
Ground penetrating radar (GPR) has been applied for ballast layer inspection for two decades, mainly for the analysis of ballast layer fouling levels. However, some issues that affect the inspection quality remain unsolved, such as issues involving the ...
Yunlong Guo, G. Liu, G. Jing, Jianjun Qu, Shilei Wang, W. Qiang   +5 more
semanticscholar   +1 more source

Shear resistance of rubber-ballast composites in simulated water and acid soaked conditions [PDF]

, 2016
Ballast is one of the main structures for the railway tracks. It can resist the lateral movement under dynamic loading transferred by the passing trains with repeatedly.
Chan, Chee Ming, SM Johan, Siti Farhanah
core   +4 more sources

Laboratory investigation of railway-used ballast morphology using 3D imaging data analyses

Case Studies in Construction Materials, 2023
Railway ballast deteriorates over time due to cyclic loading and environmental factors, necessitating its replacement to maintain track stability. However, the potential shortage of fresh ballast has posed challenges in replacing used ballast. One of the
Krittaya Varuntanya, Sararat Kwunjai, Theechalit Binaree, Peerapong Jitsangiam, Guoqing Jing, Peyman Aela   +5 more
doaj   +1 more source