Results 51 to 60 of about 834,501 (268)

Optimum conditions for high-speed solid–liquid separation by ballasted flocculation

Water Science and Technology, 2023
In the ballasted flocculation, high-speed sedimentation of suspensions is achieved using a microsand as a ballast material and a polymer flocculant combined with microflocs made of polyaluminum chloride (PAC) as an inorganic coagulant.
Yoshihiro Suzuki, Ryosuke Kaku, Katsuya Takahashi, Miyuka Kanai, Soichiro Tamai, Yuko Annaka, Nobuaki Chuganji   +6 more
doaj   +1 more source

TC-UV Reactors Evaluated as an Alternative Option in Treatment of Ballast Water [PDF]

Journal of Eta Maritime Science, 2020
Over the last decade, UV disinfection technology has been widely employed in the disinfection of nonnative species in wastewater and process water treatment.
Hüseyin ELÇİÇEK, Bülent GÜZEL
doaj   +1 more source

Optimization and feasibility assessment of the DPD colorimetric method with phosphate, iodide, and sulfuric acid for total residual oxidant monitoring in ballast water treatment systems

Environmental Engineering Research
The utilization of chlorine-based ballast water treatment systems is essential for preventing the spread of invasive species, making the continuous monitoring of total residual oxidant (TRO) levels imperative for compliance with environmental regulations.
Jiyoon Cho, Taewan Kim, M. Kim, Changha Lee   +3 more
semanticscholar   +1 more source

Evaluation of three photosynthetic species smaller than ten microns as possible standard test organisms of ultraviolet-based ballast water treatment.

Marine Pollution Bulletin, 2021
The Ballast Water Management Convention (BWMC) establishes limits for viable organisms in discharged ballast water. However, organisms smaller than 10 μm are not considered in this regulation although they represent, in some regions, the majority of the ...
Ignacio Rivas-Zaballos, L. Romero-Martínez, I. Moreno-Garrido, A. Acevedo-Merino, E. Nebot   +4 more
semanticscholar   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Improved Ballast Recovery in Water Treatment [PDF]

, 2016
SUEZ Environnement’s Densadeg XRC™ is a high throughput water clarification unit capable of removing total suspended solids (TSS) with the aid of a high density ballast material.
Canfield, Zach, Suleman, Ruqaia, Wang, Jasmine, Westbrook, James   +3 more
core   +1 more source

Atomically dispersed Pt-N-4 sites as efficient and selective electrocatalysts for the chlorine evolution reaction [PDF]

, 2020
Chlorine evolution reaction (CER) is a critical anode reaction in chlor-alkali electrolysis. Although precious metal-based mixed metal oxides (MMOs) have been widely used as CER catalysts, they suffer from the concomitant generation of oxygen during the ...
A Kumar, A Muñoz-Páez, A Wang, AC Hazell, AL Bouwkamp-Wijnoltz, AR Zeradjanin, B Qiao, B Ravel, C Zhu, CD Ellis, CE Finke, D Wintrich, D-Y Kuo, DF Abbott, E Guerrini, E Tsolaki, H Ha, H Over, H Park, H-W Liang, HA Hansen, HA Hansen, I Sohrabnejad-Eskan, IA Moreno-Hernandez, J Du, J Kim, JF Silva, JG Vos, JG Vos, JK Nørskov, K Artyushkova, K Macounová, KA Exner, KS Exner, KS Exner, KS Exner, KS Exner, KS Exner, KS Exner, L Liu, N Menzel, PCS Hayfield, PCS Hayfield, Q Fu, R Chen, RKB Karlsson, S Cherevko, S Dresp, S Geiger, S Geiger, S Gupta, S Trasatti, S Trasatti, S Trasatti, SD Hicks, SG Bratsch, SM Hwang, T Arikawa, T Binninger, T Brinkmann, TP Umile, V Petrykin, YJ Sa, YJ Sa   +63 more
core   +1 more source

Coexistence, crossover and extirpation in coalescent communities and ecotones

Oikos, EarlyView.
When two ecological communities come into contact, the strength of their mixing determines whether species coexist, extirpate, or extend their ranges. We present analytical formulas and simulations describing these transitions. Specifically, we derive abundance shifts upon community coalescence, identify the critical mixing strength leading to first ...
Martin Heidelman, Dervis Can Vural
wiley   +1 more source

Ballast water: a review of the impact on the world public health

Journal of Venomous Animals and Toxins including Tropical Diseases, 2008
Since the nineteenth century ships have been using ballast water (BW) for safety, stability, propulsion and maneuverability, as well as to redress loss of fuel weight and water consumption, and to maintain structural stress at acceptable levels.
CK Takahashi, NGGS Lourenço, TF Lopes, VLM Rall, CAM Lopes   +4 more
doaj   +1 more source

Examining the effectiveness of oiled ballast water treatment processes: Insights into hydrocarbon oxidation product formation and environmental implications

Environmental Science: Advances
Ballast water released from ships into coastal environments has been identified as a mechanism that introduces contaminants of concern into coastal ecosystems.
Maxwell L. Harsha, Danielle E. Verna, Yanila Salas-Ortiz, Ed Osborn, Eduardo Turcios Valle, Aleksandar I. Goranov, Patrick G. Hatcher, A. Aguilar‐Islas, P. Tomco, D. Podgorski   +9 more
semanticscholar   +1 more source