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Recovery of plastics from dumpsites and landfills to prevent marine plastic pollution in Thailand
Waste Disposal & Sustainable Energy Pub Date : 2020-01-02 , DOI: 10.1007/s42768-019-00027-7
Avi Sharma , Vincent Aloysius , Chettiyappan Visvanathan

Marine plastic pollution has become a major threat to the ecosystem. The increasing production and use of plastic, combined with limitations of waste management practices, mean the leakage of plastic waste into the environment is bound to increase. This study focuses on the determination of plastic recovery potential from dumpsites and landfills in Thailand, to potentially prevent marine plastic pollution. In this study, two dumpsites were analysed wherein an average of 42% of plastic was found to be present. This value, when extrapolated for Thailand, is equivalent to 187.9 million tonnes of plastic waste in dumpsites and landfills. While there are 2380 dumpsites in the country, this study suggests that 973 of these spread over 42 provinces are located near water bodies or coastline, which should be considered as a priority. The plastic waste recovered from these dumpsites can be treated by co-fuelling in cement industries. Cement kilns can valorise plastic waste as they can reach up to 75% energy recovery from waste, which is much higher compared to traditional waste-to-energy plants. With adequate incentives and sound regulations, cement industries could help in the reduction of marine plastic pollution with controlled emissions and a very large capacity to co-fuel cement production, there is a readily available solution to manage the large volumes of solid waste generated.

中文翻译:

从垃圾场和垃圾填埋场回收塑料以防止泰国海洋塑料污染

海洋塑料污染已成为对生态系统的主要威胁。塑料生产和使用的增加,加上废物管理做法的局限性,意味着塑料废物向环境的泄漏势必会增加。这项研究的重点是确定泰国从垃圾场和垃圾填埋场回收塑料的潜力,以潜在地防止海洋塑料污染。在这项研究中,分析了两个垃圾场,其中发现平均存在42%的塑料。如果将其推算到泰国,则相当于垃圾场和垃圾填埋场中的塑料废物1.879亿吨。尽管该国有2380个垃圾场,但这项研究表明,分布在42个省中的973个位于水体或海岸线附近,应优先考虑。从这些垃圾场回收的塑料废物可以在水泥工业中通过联合燃料进行处理。水泥窑可以对塑料废物进行增值,因为它们可以从废物中回收高达75%的能量,这比传统的废物转化为能源的工厂要高得多。有了适当的激励措施和健全的法规,水泥工业可以通过控制排放和联合生产水泥的能力来帮助减少海洋塑料污染,这是一种易于使用的解决方案,可以管理大量固体废物。
更新日期:2020-01-02
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