Investigation of rheological and chemical properties asphalt binder rejuvenated with waste vegetable oil

2018 ◽  
Vol 180 ◽  
pp. 455-463 ◽  
Author(s):  
Xinxin Cao ◽  
Hao Wang ◽  
Xuejuan Cao ◽  
Wei Sun ◽  
Hongzhou Zhu ◽  
...  
2021 ◽  
Vol 299 ◽  
pp. 03002
Author(s):  
Hongyan Wang ◽  
Wen Chang ◽  
Yujun Tian

Hazardous and noxious substances (HNS) leakage from ship accidents has been one of the major sources of ship pollutions. Due to the varieties of HNS, the complexity of physical and chemical properties, the harmfulness of potential accidents, and the difficulty of accident prevention, HNS leakage could cause huge social and environmental impacts. HNS emergency response methods and technologies are currently in the early and exploring stage. As a big HNS import and export country with the increasing transportation volume, the risk of HNS pollution accidents in the ports has been significantly increasing over the recent years. However, few studies have been conducted regarding the HNS response technology, especially to the adsorption performance of various adsorbents against HNS. Therefore, this study aims to calculate the degree of adsorption of different adsorbents by selecting the representative HNS, which are commonly transported in the volume, for example, benzene, styrene, and vegetable oil. For inert substances with low saturated vapor pressure (vegetable oil and styrene), the degree and rate of adsorption of the investigated materials were found to be inversely proportional to the mass per unit area (area density). Moreover, these investigated adsorbents were shown to exhibit a good adsorption retention rate against inert substances. This study can provide the technical standard to select the most suitable adsorbents for the relevant HNS leakage.


ACS Omega ◽  
2020 ◽  
Vol 5 (26) ◽  
pp. 15791-15798 ◽  
Author(s):  
Connor R. Dugan ◽  
Chris R. Sumter ◽  
Shivani Rani ◽  
S. Ashik Ali ◽  
Edgar A. O’Rear ◽  
...  

Author(s):  
Zahraa Zahraw ◽  
Abdul-Hameed Al-Obaidy ◽  
Eman Shakir ◽  
Shaymaa Hamdy

This study has been conducted during 2016, the samples were collected from discharge of General Company for Vegetable Oil Industry before and after treatment in Baghdad city. Some parameters were measured such as: Temperature, pH, Electrical Conductivity, Dissolve Oxygen and Phosphate, all reading before treatment are very high but the readings degreased rapidly after treatment. In contrast, oxygen concentration before treatment was low and elevated after treatment so much until reaches to the optimal condition for all biological and chemical properties. In this study 37 species of algal were recorded. The dominant group by the large number of species was Bacillarariophyce (24 species) followed by Cyanophycea (6species), Chlorophayce (5 species), Euglenophyceae (1species). This study shows that species recorded in the this studyeventually will stilted in Tigris river as a result of the discharge processing of this facility, therefore, some species can be found in Tigris river basin come from General Company for Vegetable Oil Industry.


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