Doaemo Willie, Dhiman Sahil, Borovskis Alexander, Zhang Wenlan, Bhat Sumedha, Jaipuria Srishti, Betasolo Mirzi
Department of Civil Engineering, Papua New Guinea University of Technology, Lae, 00411 Papua New Guinea.
Morobe Development Foundation, Doyle Street, Trish Avenue-Eriku, Lae, 00411 Papua New Guinea.
Environ Dev Sustain. 2021;23(12):18509-18539. doi: 10.1007/s10668-021-01465-2. Epub 2021 Apr 29.
Lae City (LC) of Morobe Province is the second-largest city in Papua New Guinea. Due to the abundant natural resources it inherits, the resultant urbanization has led to an influx of the human population. This increase in population as a result of industrialization has led to increased municipal solid waste (MSW) accumulation. To address this exigent issue, which affects the nation's carbon footprint, it is imperative to review socio-economic and geographic factors to establish a feasible approach for managing MSW efficiently and sustainably. In the quest to achieve the same, the present assessment focuses on the 3 core waste management hierarchy systems to support sustainable development for LC by reviewing existing opportunities and challenges associated with the current MSW management system and the associated policies. The result shows that as a sustainable approach to MSW management of LC, a zero-waste campaign for resource recovery engaging all stakeholders can be implemented since the organic content of MSW generated in LC is as high as 70%. Moreover, the dumping of MSW at the dedicated dumpsite site can be minimized if policies are strengthened and the proposed waste avoidance pathway is implemented strictly. In addition to this, to avoid the contamination of groundwater and recovery of methane, the use of the Fukuoka approach in the existing landfills has been suggested to capture leachate without any huge expenditure.
莫罗贝省的莱城是巴布亚新几内亚的第二大城市。由于其丰富的自然资源，由此产生的城市化进程导致了人口的涌入。工业化带来的人口增长导致城市固体废物（MSW）积累增加。为解决这一影响国家碳足迹的紧迫问题，有必要审视社会经济和地理因素，以建立一种可行的方法来高效且可持续地管理城市固体废物。为实现这一目标，本评估聚焦于3个核心废物管理层级系统，通过审视与当前城市固体废物管理系统及相关政策相关的现有机遇和挑战，来支持莱城的可持续发展。结果表明，作为莱城城市固体废物管理的可持续方法，鉴于莱城产生的城市固体废物有机含量高达70%，可以开展一场让所有利益相关者参与的资源回收零废物运动。此外，如果加强政策并严格实施提议的废物避免途径，城市固体废物在专用垃圾场的倾倒可减至最少。除此之外，为避免地下水污染和甲烷回收，建议在现有垃圾填埋场采用福冈方法来收集渗滤液，而无需任何巨额支出。
