Evaluation of resource use in the household lighting sector in Malaysia considering land disturbances through mining activities
Evaluation of resource use in the household lighting sector in Malaysia considering land disturbances through mining activities
复制标题
DOI：
10.1016/j.resconrec.2020.105343
复制
发表时间：
2020-12
影响因子：
13.2
通讯作者：
Shoki Kosai;Arnidah Binti Badin;Yang Qiu;K. Matsubae;Sangwon Suh;E. Yamasue
中科院分区：
文献类型：
--
作者：
Shoki Kosai;Arnidah Binti Badin;Yang Qiu;K. Matsubae;Sangwon Suh;E. Yamasue
本研究从资源生命周期的角度评估了马来西亚家庭照明行业的资源使用情况，使用总材料需求（TMR）的概念，这代表了采矿活动对资源开采造成的土地扰动的规模。白炽灯泡（INC），紧凑型荧光灯（CFL）和发光二极管（LED）灯泡的TMR在生产和运行阶段进行评估。然后，在2015-2050年期间，马来西亚家庭部门不同照明技术的流量和存量估计考虑到两种情况，基于马来西亚社会照明技术的快速过渡。最后，考虑到灯泡寿命和发电量的不确定性，研究了2015-2050年马来西亚家庭照明部门的整体资源使用情况。虽然我们的研究结果表明，LED生产的TMR是所有三种类型的灯泡中最高的，但LED灯泡的高能效使得LED的总TMR在700个工作小时后的三种照明类型中最低。在不经常使用的灯泡的情况下，CFL在资源使用方面可能上级LED。2020年马来西亚的调查结果显示，只有13%的废弃家用灯泡得到妥善处理和回收。研究还发现，照明技术的快速过渡将避免大量的资源开采，2025年是马来西亚自然资源利用和回收的里程碑。
This study evaluated resource use in the household lighting sector in Malaysia from the perspective of the lifecycle of the resources using the concept of total material requirement (TMR), which represents the scale of land disturbances caused by mining activities for resource exploitation. The TMR of incandescent bulbs (INC), compact fluorescent lamps (CFL) and light-emitting diode (LED) bulbs is evaluated during the production and operation stages. Then, the flow and stock of different lighting technologies in the Malaysian household sector during the period 2015–2050 is estimated considering two scenarios based on the rapidity of transition of lighting technologies in Malaysian society. Finally, the overall resource use of the household lighting sector in Malaysia during 2015–2050 is examined, considering the uncertainties of the lifespan of light bulbs and power generation. Although our findings indicate that the TMR of the LED production was the highest of all three types of light bulb, the high energy efficiency of LED bulbs makes the total TMR of LED the lowest among the three types of lighting evaluated after 700 operational hours. In the case of infrequently used light bulbs, the CFL may be superior to LED in the context of resource use. Survey results for Malaysia in 2020 indicated that only 13% of total obsolete household light bulbs are properly treated and recycled. It was also found that the quick transition of lighting technologies will avoid significant resource exploitation, and that the year 2025 is a milestone for natural resource use and recycling in Malaysia.