Farhidi Faraz, Madani Kaveh, Crichton Rohan
NV Energy, Las Vegas, NV, USA.
Institute for Integrated Management of Material Fluxes and of Resources, United Nations University (UNUFLORES), Dresden, Germany.
Environ Health Insights. 2022 Oct 15;16:11786302221128454. doi: 10.1177/11786302221128454. eCollection 2022.
Composting is one of the environmentally friendly ways of reducing organic waste. It is economically viable since it cuts costs associated with the hauling of wastes and enables farmers to reduce the use of fertilizers. Composting operations are relatively non-existent in the solid municipal waste sector, as the market has molded itself and grown into a standard "bury-or-burn" model. As humans are trying to address global warming, composting proves to be a promising climate change mitigation option, benefiting societies in terms of the environment, the economy, and overall health. This study projects that-with the current trends-by the end of 2030, the U.S. can increase the compost to waste ratio by 18% from 10%, reducing carbon emissions by 30 million tons a year while saving around 16 billion USD in municipal waste management costs. Analyzing the existing records in the OECD countries suggests that economic motives are not powerful enough to incentivize the industry/household toward composting. Stricter environmental policies can boost the composting volume by 214-574 thousand tons per year. Imposing waste taxes and penalties can give birth to a vast industry that has not yet flourished while the economic subsidies financed by the collected taxes and penalties can incentivize the private sector to further invest in composting.
堆肥是减少有机废物的环保方式之一。它在经济上可行,因为它降低了与废物运输相关的成本,并使农民能够减少化肥的使用。在城市固体垃圾处理领域,堆肥操作相对较少,因为市场已经形成并发展成了标准的“填埋或焚烧”模式。随着人类努力应对全球变暖,堆肥被证明是一个有前景的缓解气候变化的选择,在环境、经济和整体健康方面使社会受益。这项研究预测,按照当前趋势,到2030年底,美国可将堆肥与废物的比例从10%提高18%,每年减少3000万吨碳排放,同时在城市垃圾管理成本方面节省约160亿美元。分析经合组织国家的现有记录表明,经济动机不足以激励行业/家庭进行堆肥。更严格的环境政策可使堆肥量每年增加21.4 - 57.4万吨。征收垃圾税和罚款可催生一个尚未蓬勃发展的庞大产业,而由所征收的税费资助的经济补贴可激励私营部门进一步投资于堆肥。