(주)에이피엠엔지니어링

PTR-ToF-MS를 활용한 비료제조시설의 악취 발생 특성 연구

A study on the monitoring odor of the fertilizer manufacturing facilities by PTR-ToF-MS

Abstract 

This study investigated the odor emission characteristics of fertilizer manufacturing facilities. The characteristics were

evaluated by measuring the odor concentration at the outlet and site boundary of the complex fertilizer and organic

fertilizer manufacturing facilities. The evaluation process utilized the air dilution sensory method and PTR-ToF-MS. The

complex odor dilution factor ranged from 100 to 120 times at the outlet of the compound fertilizer manufacturing

facility. Specifically, the concentrations of Ammonia and Aldehydes were relatively high as designated odor substances.

For the organic fertilizer facility, the dilution factor for complex odors was measured up to a maximum of 3,000. And,

designated odorants such as Ammonia and Hydrogen sulfide were measured at levels up to parts per million (ppm).

The odor contribution assessment of the fertilizer manufacturing facilities showed that the complex fertilizer facility

exhibited similar contributions from Aldehydes and Sulfur compounds. On the other hand, the organic fertilizer facility

had the highest contribution of over 62% from Sulfur compounds. As odor substances are easily changed and

diffused according to weather conditions, it is difficult to obtain representative data according to the measurement

time. Therefore, if continuous monitoring of odorous substances is performed using equipment that can be measured

in real time without pretreatment, it becomes feasible to identify odor emission sources and regional spatio-temporal

distribution. This information would then serve as a basis for analyzing odorant contamination characteristics and establishing appropriate countermeasures.

Key words 

Fertilizer, PTR-ToF-MS, Odor activity value, Odorous substances

▶출처 : 실내환경 및 냄새 학회지 Vol.22, No.2, pp.129-138, June 2023