MATHEMATICAL MODEL DEVELOPMENT OF ODOR EMISSION FROM LANDFILL AND COMPOSTING SITE OF KAHRIZAK: A CASE STUDY AMMONIA EMISSION

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YOUSFI M.; ASADOLLAHFARDI G.; ELYASI S.; ASADI M.

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Journal: Modares Civil Engineering journal Year:2016 | Volume:15 | Issue:4 Page(s): 117-126

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Title

MATHEMATICAL MODEL DEVELOPMENT OF ODOR EMISSION FROM LANDFILL AND COMPOSTING SITE OF KAHRIZAK: A CASE STUDY AMMONIA EMISSION

Author(s)

YOUSFI M. | ASADOLLAHFARDI G. | ELYASI S. | ASADI M. | Issue Writer Certificate

Keywords

AMONIA EMISSION MODELQ2

KAHRIZAK LANFILL AND COMPOSTING SITEQ2

GAUSSIAN DISPERSION EQUATIONQ2

Abstract

The Public complaint about odor pollution against local authorities has started for many years. Several industries generate odor such a poultries, livestock industries and landfill. Odor emission is one of the important problems of compost production and landfill sites. Therefore, study of the determination of odor emission from residential, institutional and commercial centers, considering geographical conditions and local climate of composting site or center of odor generation, is vital. Ammonia emits from landfill and composting plant and generate a bad smell. Toxicity, corrosion and sharp odor are the major specifications of ammonia, considered as the most common odors found in composting and landfill. We studied developing and extending of the odor emissions model of the landfill site and composting production site base on the Gaussian theory of pollution emission. The odor emission equations of Kahrizak composting and landfill sites was analyzed. For solving the equations of odor emission, we applied Pasquill Gifford and Gaussian equation.The coefficient of dispersion in vertical and lateral directions, using local meteorological data was determined according to the Pasquill Gifford method and odor emission was solved using the Gaussian equation. To determine the dominant wind direction, we used WRPLOT view software. For obtaining a velocity of ammonia emission, the first order equation was used. For the identification of stability class specification for the day and specified location, Monin–Obukhov length and net radiation were used. The effect of radiation angle and topography parameters of the area in our calculation was considered. For solving the Gaussian equation, we established a coding program. Limitation of our study was a lack of data in the study area for testing our model. Therefore, we compared our results with similar research in the world and also used a sensitivity analysis to prove the validity of our model. The results indicated that the ammonia emission rate from the Kahrizak Complex was about 163 g/s. By solving the Gaussian equation, we obtained the instant maximum ammonia emission equal to 180mg/m3 from 80 meters from the source at an effective height of 1.5 meters. The emitted ammonia could be detected up to 2 km away from the complex center. A comparison of our results with outcome of similar studies indicates the reliability of the model. Considering the location of residential area which is at 8.1 km far from the Kahrizak landfill center; therefore, no any danger will occur for people live in the area due to ammonia emission from Kahrizak landfill site.

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APA: Copy

YOUSFI, M., ASADOLLAHFARDI, G., ELYASI, S., & ASADI, M.. (2016). MATHEMATICAL MODEL DEVELOPMENT OF ODOR EMISSION FROM LANDFILL AND COMPOSTING SITE OF KAHRIZAK: A CASE STUDY AMMONIA EMISSION. MODARES CIVIL ENGINEERING JOURNAL, 15(4), 117-126. SID. https://sid.ir/paper/256925/en

Vancouver: Copy

YOUSFI M., ASADOLLAHFARDI G., ELYASI S., ASADI M.. MATHEMATICAL MODEL DEVELOPMENT OF ODOR EMISSION FROM LANDFILL AND COMPOSTING SITE OF KAHRIZAK: A CASE STUDY AMMONIA EMISSION. MODARES CIVIL ENGINEERING JOURNAL[Internet]. 2016;15(4):117-126. Available from: https://sid.ir/paper/256925/en

IEEE: Copy

M. YOUSFI, G. ASADOLLAHFARDI, S. ELYASI, and M. ASADI, “MATHEMATICAL MODEL DEVELOPMENT OF ODOR EMISSION FROM LANDFILL AND COMPOSTING SITE OF KAHRIZAK: A CASE STUDY AMMONIA EMISSION,” MODARES CIVIL ENGINEERING JOURNAL, vol. 15, no. 4, pp. 117–126, 2016, [Online]. Available: https://sid.ir/paper/256925/en

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