ارزیابی میزان انتشار گاز متان از محل دفن پسماند شهر زنجان با استفاده از مدل های IPCC Waste و landGEM در سالهای ۱۳۷6 تا 1415
فصلنامه علمی پژوهشی بهداشت در عرصه,
دوره 14 شماره 1 (1405),
24 اکتبر 2026
,
صفحه 68-80
https://doi.org/10.22037/jhf.v14i1.51462
چکیده
زمینه و اهداف: متان از مهمترین گازهای گلخانهای مؤثر بر تغییر اقلیم است و محلهای دفن پسماند از منابع اصلی انتشار متان محسوب میشوند که برآورد دقیق انتشار آن، برای مدیریت پسماند و بازیابی انرژی ضروری است. پژوهش حاضر با هدف برآورد و مقایسه انتشار متان از محل دفن پسماند شهر زنجان با استفاده از مدلهای IPCC Waste و LandGEM طی سالهای 1376 تا 1415 انجام شد.
مواد و روشها: دادههای جمعیتشناختی، پسماند تولیدی و دفن شده، ترکیب فیزیکی و شرایط مدیریتی محل دفن پسماند گردآوری شد. این دادهها به همراه پارامترهای اختصاصی و ضرایب مورد نیاز مدلها شامل DOC، DOCF، MCF، F، L₀، k، OX مطابق دستورالعملهای IPCCWaste و LandGEM جهت شبیهسازی انتشار متان بهکار رفت. همچنین با استفاده از میزان انتشار برآوردی توسط هر مدل، پتانسیل تولید انرژی الکتریکی محاسبه گردید. موازین اخلاقی درانجام این پژوهش، رعایت گردید.
یافتهها: هر دو مدل روند افزایشی انتشار را نشان دادند؛ اما مقادیر LandGEM به طور معناداری بالاتر بود. انتشار سالانه متان در IPCC Waste از 0/114 به 3/204 گیگاگرم در سال و در LandGEM از 0/377 به Gg/year 11/306 افزایش یافت که اوج آن در سالهای پایانی برای مدلهای LandGEM و IPCC Waste به ترتیب برابر با 57/7 و GWh/year 15/27 است.
نتیجهگیری: نتایج بیانگر توانمندی هر دو مدل در پیشبینی روند انتشار است، هرچند LandGEM مقادیر بیشتری را پیشبینی کرد. بر اساس محل دفن پسماند زنجان، ظرفیت مطلوبی جهت استحصال انرژی و کاهش گازهای گلخانهای دارد. با توجه به مدلمحور بودن پژوهش، اعتبارسنجی نتایج با دادههای پایش میدانی در مطالعات آتی ضروری است.
- پسماند شهری
- بیوگاز
- تغییر اقلیم
- مدلسازی انتشار
- بازیابی انرژی
- گازهای گلخانهای
ارجاع به مقاله
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- چکیده مشاهده شده: 23 بار