PDF(Pubmed)
Abstract：
Exposure to high concentrations of odours can result in health effects associated with direct health risks and irritation from nuisance. This investigation aimed to correlate aspects of the waste composting process with the emission levels of malodourous compounds. An essential optimisation criterion is the reduction of negative environmental impacts, particularly odour emissions. This study characterises odour concentration variations across various technological variants over different weeks of the composting process. A secondary objective is evaluating the efficacy of these variants, which differ in inoculation substances and compost heap composition. Olfactometric analyses were conducted using portable field olfactometers, enabling precise dilutions by mixing contaminated and purified air. The primary aim was to examine the correlation between selected odour parameters, determined via sensory analysis, and ammonia concentration during different composting weeks. Ammonia levels were measured using an RAE electrochemical sensor. Research shows that odour concentration is a significant indicator of compost maturity. In situ, olfactometric testing can effectively monitor the aerobic stabilisation process alone or with other methods. The most effective technological solution was identified by combining olfactometric and ammonia measurements and monitoring composting parameters, ensuring minimal odour emissions and the safety of employees and nearby residents.
摘要：
暴露于高浓度的气味会导致与直接健康风险和滋扰刺激相关的健康影响。这项研究旨在将废物堆肥过程的各个方面与恶臭化合物的排放水平相关联。一个基本的优化标准是减少负面环境影响，特别是气味排放。这项研究表征了堆肥过程不同周的各种技术变体中的气味浓度变化。次要目标是评估这些变体的功效，接种物质和堆肥堆组成不同。使用便携式现场嗅觉仪进行嗅觉分析，通过混合污染和净化的空气实现精确稀释。主要目的是检查选定的气味参数之间的相关性，通过感官分析确定，不同堆肥周的氨浓度。使用RAE电化学传感器测量氨水平。研究表明，气味浓度是堆肥成熟度的重要指标。在原地,嗅觉测试可以单独或使用其他方法有效地监测有氧稳定过程。通过结合嗅觉和氨测量并监测堆肥参数，确定了最有效的技术解决方案，确保最少的气味排放以及员工和附近居民的安全。
