Compound reutilization of waste cooking oil and waste engine oil as asphalt rejuvenator: performance evaluation and application

The comprehensive utilization of waste cooking oil (WCO) and waste engine oil (WEO) is of great significance to build a sustainable society because recycling WCO and WEO to develop a rejuvenator for asphalt pavement not only aids the reduction of environmental pollution, but also brings about signif...

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Published in:Environmental science and pollution research international 2022-12, Vol.29 (60), p.90463-90478
Main Authors: Li, Haibin, Zhang, Mingming, Temitope, Ahmed Abdulakeem, Guo, Xiaoyuan, Sun, Jianmei, Yombah, Mulbah, Zou, Xiaolong
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Cooking
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Oils
Research Article
Sustainable Development
Waste Water Technology
Water Management
Water Pollution Control
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Summary:The comprehensive utilization of waste cooking oil (WCO) and waste engine oil (WEO) is of great significance to build a sustainable society because recycling WCO and WEO to develop a rejuvenator for asphalt pavement not only aids the reduction of environmental pollution, but also brings about significant benefits to the Earth’s sustainable development. With a clear aim to contribute to a more efficient reuse of the waste oils and recycled asphalt mixtures, this paper develops a high-efficiency compound rejuvenator and determines the optimal combination of its main constituents (WCO and WEO) through orthogonal tests. Furthermore, the performance of the rejuvenator is verified by means of the four-fraction test and the traditional asphalt performance tests (penetration, ductility, softening point). These tests confirm the regeneration efficiency of the compound rejuvenator, and the optimum dosage of the compound rejuvenator is found of 7%. Subsequently, the mechanism of the compound rejuvenator in aged asphalt is examined, and following the application of the compound rejuvenator, it was concluded that the reclaimed asphalt pavement (RAP) could be maximized by 45%. Consequentially, the results of this research promote the recycling of WEO, WCO, and waste asphalt pavement materials, ultimately advocating the sustainability of pavement construction.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-022-22153-2