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Characteristics of Persistent Organic Pollutant Emissions from a Diesel-Engine Generator Fueled Using Blends of Waste Cooking Oil-Based Biodiesel and Fossil Diesel

Category: Diesel Engine Emission

Volume: 16 | Issue: 8 | Pages: 2048-2058
DOI: 10.4209/aaqr.2016.06.0257
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Jen-Hsiung Tsai1, Shui-Jen Chen 1, Kuo-Lin Huang1, Guo-Ping Chang-Chien2,3, Wen-Yinn Lin4, Chien-Wei Feng1, Jin-Yuan Syu4, Ho-Tsang Huang1

  • 1 Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung County 91201, Taiwan
  • 2 Supermicro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung City 83347, Taiwan
  • 3 Department of Cosmetics and Fashion Styling, Cheng Shiu University, Kaohsiung City 83347, Taiwan
  • 4 Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei City 10608, Taiwan

Highlights

Persistent organic pollutants from a non-road diesel engine generator are studied.
WCO-based biodiesel can reduce PCDD/Fs, PCBs, PBDD/Fs and PBDEs emission.
WCO-biodiesel can be used as an alternative fuel.


Abstract

This study elucidates the characteristics of persistent organic pollutants (POPs), including polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyl (PCBs), polybrominated dibenzo-p-dioxins and polybrominated dibenzofurans (PBDD/Fs) and polybrominated diphenyl ethers (PBDEs), that are emitted from a generator (non-road diesel engine) that is fueled with a blend of waste cooking oil biodiesels (WCO-biodiesels). Experimental results reveal that the mass concentrations of PCDD/Fs, PCBs, PBDD/Fs and PBDEs from the diesel generator that is fueled with petroleum diesel (D100) under loads of 1.5 kW and 3.0 kW were 583–875 pg Nm–3, 580–810 pg Nm–3, 982–1408 pg Nm–3, and 134–216 ng Nm–3, respectively, while the toxicity concentrations of PCDD/Fs, PCBs, and PBDD/Fs were 33.2–58.6, 2.72–3.11, and 1.54–2.30 pg WHO2005-TEQ Nm–3, respectively. W20 and W40 emitted 15–65% and 23–85% less of these POPs by mass (and 25–47% and 46–91% by toxicity), respectively. Among the tested fuel blends, the W40 exhibited the greatest emission factor reductions of mass and toxicity of these four POPs, despite of the load. Therefore, WCO-biodiesels can feasibly be used as an alternative generator fuel, favoring the recycling/reuse of waste oils and mitigating hazards to human health and environment.

Keywords

Persistent organic pollutant PCDD/F PBDE Waste cooking oil Biodiesel


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