基于液循环的可持续垃圾填埋场的实验研究和多性能优化,采用塔古奇方法和集成的MCDM方法
Osama Khan1, Sameera Mufazzal1, Ahmad F Sherwani1
1Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi, 110025, India.
Scientific reports
|November 5, 2023
概括
垃圾填埋场液循环将垃圾填埋场转化为生物反应堆,提高了废物转化能源的性能. 这种可持续的方法优化了填埋场的参数,以增加发电量,降低处理成本.
科学领域:
- 环境工程 环境工程
- 废物管理 废物管理
- 生物反应器技术技术
背景情况:
- 垃圾填埋场的液由于有害物质而带来了重大环境和健康风险.
- 传统的液处理是昂贵和低效的.
- 液循环为填埋场管理提供了一个可持续的替代方案.
研究的目的:
- 研究水循环作为一种优化垃圾填埋性能以生产能源的方法.
- 确定最佳的垃圾填埋场运行参数,以提高废物转化为能源的效率.
- 展示一个具有成本效益和可持续的水处理战略.
主要方法:
- 使用Taguchi的L25直角阵列,在五个级别上研究五个输入参数.
- 使用多标准决策 (MCDM) 方法 (MEREC-PIV) 和统计分析 (ANOM,ANOVA).
- 通过实验评估废物颗粒大小,废物添加量,无机含量,水循环率和填埋年龄的影响.
主要成果:
- 确定了最佳参数:9 ppm的废物颗粒大小,80 Ktoe的废物添加量,2%的无机含量,250 L/day的循环率和3年的垃圾填埋年龄.
- 废物的无机含量被发现是影响垃圾填埋性能最重要的因素.
- 该研究成功地优化了垃圾填埋条件,以提高废物转化能源效率.
结论:
- 液循环是一种可行的策略,可以提高垃圾填埋场生物反应器的性能.
- 优化的垃圾填埋参数可以显著改善废物能源生产.
- 这种方法为废物管理和能源生产提供了可持续和有利可图的解决方案.
相关概念视频
01:27Microbial Leaching
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
01:30Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
01:24Microbial Corrosion
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
01:28Methods of Medium Optimization
Optimizing growth media enhances microbial proliferation and maximizes product yield. Statistical experimental design methodologies provide structured and reproducible approaches, offering progressively higher levels of robustness and efficiency.The One-Factor-at-a-Time (OFAT) MethodThe One-Factor-at-a-Time (OFAT) method involves adjusting a single variable while keeping all others constant. However, it cannot detect interactions between variables, often leading to suboptimal outcomes when...
01:30Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...