Journal of People, Plants, and Environment (인간식물환경학회지)

Society For People, Plants, And Environment (인간식물환경학회)
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A Study on the Enhancement of Inventories for Precursors (NOx, SOx) Released from Open Burning of Agricultural Waste Vinyl Causing the Secondary Generation of Particulate Matters

  • Kim, Tae-Han (Department of Green Smart City, Sangmyung University) ;
  • Choi, Boo-Hun (Department of Environmental Resources, Sangmyung University)
  • Received : 2021.02.22
  • Accepted : 2021.04.05
  • Published : 2021.04.30
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Abstract

Background and objective: While response measures to particulate matters in rural areas are limited due to poor inventory record keeping in the agricultural sector, it is necessary to control agricultural waste vinyl and the emission of precursors released from open burning and the secondary generation of particulate matters. Currently, the open burning emission calculation method uses the definition prescribed in CAPSS by the National Institute of Environmental Research. Methods: This study presented an open burning emission calculation formula for agricultural waste vinyl, which is included as agricultural waste. As for activity data, the open burning ratio of agricultural waste vinyl, and the annual incineration volume provided in the Status Survey by the Ministry of Agriculture, Food, and Rural Affairs were applied. The emission factor was generated through incineration tests on three agricultural plastic film samples collected by the Korea Environment Corporation. Results: Among precursors, SOx and NOx were selected and their emission features were monitored with incineration experiment infrastructure based on the EPA 5G method. The highest emission concentration by agricultural waste type was concentrated in the first and second quarters. As for emission factor of SO2, it was calculated at 98.25 g/kg for mulching-use LDPE, 52.31 g/kg for greenhouse-use LDPE, and 14.40 g/kg for HDPE. As for NOx, it was calculated at 18.21 g/kg for mulching-use LDPE, 16.49 g/kg for greenhouse-use LDPE, and 10.67 g/kg for HDPE. Conclusion: This test confirmed the incineration features of PE-based plastics, ascertained the SOx emission factor that had not been included in open burning in the past, and established that low NOx emission concentration is interfered by soil mixed with livestock excretions. The findings from this study are expected to contribute to improving the system for controlling air pollutants in rural environments.

Keywords

Acknowledgement

This work was Carried out whit the seupport of "Cooperative Reasearch Program for Agriculture Science and Technology Dvelopment (Project No. PJ0142832021)"Rural Development Administration, Republic of Korea.

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