MODELING AND OPTIMIZATION OF DIESEL OIL SPILL REMOVAL FROM WATER SURFACE USING SHREDDED STRIPS OF POLYPROPYLENE AS SORBENT

2003 ◽  
Vol 2 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Corneliu Cojocaru ◽  
Matei Macoveanu
Keyword(s):  
Oil Spill ◽  
Water Surface ◽  
Diesel Oil ◽  
Modeling And Optimization

scholarly journals Experimental analysis on the optimal excitation wavelength for fine-grained identification of refined oil pollutants on water surface based on laser-induced fluorescence

2021 ◽  
Author(s):  
Ming Xie ◽  
Yunpeng Jia ◽  
Ying Li ◽  
Xiaohua Cai ◽  
Kai Cao
Keyword(s):  
Oil Spill ◽  
Theoretical Basis ◽  
Water Surface ◽  
Laser Induced Fluorescence ◽  
Excitation Wavelength ◽  
Refined Oil ◽  
Fine Grained ◽  
Optimal Excitation ◽  
Oil Spill Identification

Abstract Laser-induced fluorescence (LIF) is an effective, all-weather oil spill identification method that has been widely applied for oil spill monitoring. However, the distinguishability on oil types is seldom considered while selecting excitation wavelength. This study is intended to find the optimal excitation wavelength for fine-grained classification of refined oil pollutants using LIF by comparing the distinguishability of fluorometric spectra under various excitation wavelengths on some typical types of refined-oil samples. The results show that the fluorometric spectra of oil samples significantly vary under different excitation wavelengths, and the four types of oil applied in this study are most likely to be distinguished under the excitation wavelengths of 395 nm and 420 nm. This study is expected to improve the ability of oil types identification using LIF method without increasing time or other cost, and also provides theoretical basis for the development of portable LIF devices for oil spill identification.

Oil Spill Simulations and Susceptibility in Coastal and Estuarine Areas

2019 ◽  
Vol 396 ◽  
pp. 109-120 ◽  
Author(s):  
Caroline Barbosa Monteiro ◽  
Phelype Haron Oleinik ◽  
Bruno Vasconcellos Lopes ◽  
Thalita Fagundes Leal ◽  
Osmar Olinto Möller Junior ◽  
...  
Keyword(s):  
Oil Spill ◽  
Oil Spills ◽  
Diesel Oil ◽  
Hydrodynamic Conditions ◽  
Residual Oil ◽  
Coastal Zones ◽  
Mass Losses ◽  
Estuarine Region ◽  
Modelling System ◽  
Oil Particles

A modelling system was utilised to simulate the movement and behaviour of oil slicks for two types of hydrocarbons, a diesel and another residual, considering hydrodynamic variations. Susceptible areas to oil touching were found in adjacent regions of two vessel manoeuvring zones, in two types of zones, one in a marine coastal and another in an estuarine environment. The evaporation rates were calculated for an estimate of the mass losses. For the maritime zone, the oil particles reached the vicinity of the beaches in approximately 4 to 8 hours after the beginning of the spill simulations, while for the estuary in approximately 1 hour. For the scenarios with diesel oil, mass losses oscillated between 13 to 16% in the estuarine region, and between 23 and 29% in the marine coastal zones. The evaporation rates for scenarios with residual oil, between 2 and 5%, were considerably lower than for diesel (15 and 22%), especially for spills simulated in the estuarine region, where the oil particles reached the lagoon banks after 1 hour. Mass losses by evaporation were more intense in marine coastal areas than for oil spills simulated in estuarine regions, possibly due to the more intense hydrodynamic conditions and the longer time that the oil needs to reach the coast. The fluctuations of observed environmental conditions justify the need for a robust number of simulations for reducing the uncertainties related to the oceanographic and meteorological variability that affect oil spill movement.

Diesel oil spill in a subalpine meadow: 9 years of recovery

1982 ◽  
Vol 60 (6) ◽  
pp. 906-910 ◽  
Author(s):  
Joy Belsky
Keyword(s):  
Oil Spill ◽  
Plant Cover ◽  
Bare Soil ◽  
Diesel Oil ◽  
Community Recovery ◽  
Growing Seasons ◽  
Subalpine Meadow ◽  
Meadow Communities ◽  
Casual Observer

Two subalpine meadow communities near Mt. Baker, Washington, were inundated by a spill of 26 000 L of diesel oil in 1972. Studies were made of the initial impact of the oil on the vegetation and of community recovery over 9 years. Within two growing seasons following the spill, plant cover had decreased from a prespill cover of nearly 100% to 1% and all species except Phyllodoce empetriformis, Carex lenticularis, and Rhacomitrium sudeticum had died. Seedlings of Carex nigricans began to appear on bare soil after 1 year, followed by seedlings of other common subalpine species 2 to 4 years later. Nine years after the perturbation 5 to 20% of the ground was covered with vegetation and the original disturbance could no longer be discerned by a casual observer.

scholarly journals Effects of diesel oil spill on macrobenthic assemblages at the intertidal zone: A mesocosm experiment in situ

2019 ◽  
Vol 152 ◽  
pp. 104823 ◽  
Author(s):  
Zhengquan Zhou ◽  
Xiaojing Li ◽  
Linlin Chen ◽  
Baoquan Li ◽  
Chuanyuan Wang ◽  
...  
Keyword(s):  
Oil Spill ◽  
Intertidal Zone ◽  
Diesel Oil ◽  
Mesocosm Experiment ◽  
Macrobenthic Assemblages

EPHEMERAL DATA COLLECTION GUIDANCE MANUAL, WITH EMPHASIS ON OIL SPILL NRDAS

1997 ◽  
Vol 1997 (1) ◽  
pp. 1029-1030 ◽  
Author(s):  
Gordon A. Robilliard ◽  
Paul D. Boehm ◽  
Michael J. Amman
Keyword(s):  
Spatial Distribution ◽  
Data Collection ◽  
Oil Spill ◽  
Environmental Assessment ◽  
Water Surface ◽  
Oil Spills ◽  
First Responders ◽  
Environmental Sampling ◽  
Beach Sediments ◽  
Spilled Oil

ABSTRACT The purpose of the guidance manual is to identify for first responders the basic methods for collecting, preserving, and documenting essential ephemeral samples and data that are needed for NRDA and general environmental assessment in oil spills. The manual assumes that first responders will have limited specialized experience, expertise, and equipment in environmental sampling. Ephemeral data and samples include (a) source oil and freshly spilled oil, (b) the spatial distribution and amount of oil on the water surface and on shorelines, (c) unoiled beach sediments, (d) oil in the water column in unoiled and oiled areas, and (e) selected unoiled intertidal organisms. The manual provides guidance on where, when, and how to collect each type of sample and data. The manual emphasizes the importance of documenting samples and data so that they can be used later to evaluate the environmental impacts of the spilled oil.

Numerical Modeling of the Oil Spill Trajectory and Real-Time Tracking Using Intelligent Swarm Robots

2013 ◽  
Vol 446-447 ◽  
pp. 1261-1265 ◽  
Author(s):  
Mohsen Pashna ◽  
Rubiyah Yusof ◽  
Zool H. Ismail
Keyword(s):  
Numerical Modeling ◽  
Numerical Model ◽  
Crude Oil ◽  
Oil Spill ◽  
Water Surface ◽  
Sea Surface ◽  
Sea Waves ◽  
Robot Locomotion ◽  
Swarm Robots ◽  
Real Time Tracking

An oil spill is discharge of fluid petroleum such as crude oil or its by-product derivations such as diesel and gasoline on the water surface. In this paper, a numerical model of the oil spill has been introduced as a simulation of releasing oil on the sea surface. Meantime, the influence of sea waves and wind has been considered and shown. Moreover, a swarm of robots is engaged in order to track the spreading boundaries of the slicked oil, so that a novel schedule of robot locomotion is presented, based on the online sharing information in the flock network. Therefore, the swarm of robots tracks the oil spill margins intelligently and successfully.

Oil spill cleanup of water surface by plant-based sorbents: Russian practices

2016 ◽  
Vol 101 ◽  
pp. 88-92 ◽  
Author(s):  
O.A. Galblaub ◽  
I.G. Shaykhiev ◽  
S.V. Stepanova ◽  
G.R. Timirbaeva
Keyword(s):  
Oil Spill ◽  
Water Surface ◽  
Oil Spill Cleanup
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