ردپای انتشار گازهای گلخانه‌ای حاصل از تولید ماده خام بالقوه سوخت بیودیزل (مطالعه موردی)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه فردوسی مشهد

2 دانشگاه گیلان

چکیده

افزایش فعالیت‌های صنعتی و کشاورزی، منجر به انتشار گازهای گلخانه­ای و بروز چالشی جدی در مدیریت محیط زیست شده است. از این رو، توجه به منابع تجدیدپذیر و پاک انرژی بیشتر شده است. در این راستا برای تولید ماده خام بالقوه این قبیل سوخت‌ها، نیاز به مصرف نهاده‌هایی با پتانسیل آلودگی زیست محیطی می‌باشد. بر این اساس، در این تحقیق ردپای انتشار گازهای گلخانه‌ای حاصل از تولید بادام‌زمینی به عنوان یک ماده خام بالقوه برای تولید سوخت بیودیزل در استان گیلان مورد مطالعه قرار گرفت. داده­های لازم، از طریق پرسش‌نامه و مصاحبه حضوری با 75 کشاورز به‌دست آمد. مزارع بادام زمینی در سه اندازه کمتر از نیم هکتار، نیم تا یک هکتار و بزرگتر از یک هکتار طبقه­بندی شدند. نتایج نشان داد، میزان انتشار گازهای گلخانه‌ای در تولید بادام‌زمینی در استان گیلان، 29/822 کیلوگرم معادل دی‌اکسید کربن در هکتار بود. دو نهاده سوخت دیزل و ماشین‌ها به ترتیب با 90/57 و 6/18 درصد، بیشترین سهم از انتشار گازهای گلخانه­ای در تولید بادام زمینی را به خود اختصاص دادند. تفاوت مجموع انتشار گازهای گلخانه‌ای بر واحد سطح در مزارع  با مساحت کمتر از نیم هکتار و بزرگتر از یک هکتار در سطح پنج درصد معنی‌دار بود و زمین‌های با مساحت بزرگتر  از یک هکتار از انتشار گازهای گلخانه‌ای کم‌تری در واحد سطح برخوردار بودند. همچنین میزان انتشار گازهای گلخانه‌ای ناشی از تولید بادام‌زمینی به عنوان ماده خام بالقوه، برای تولید یک لیتر سوخت بیودیزل برابر 17/1 کیلوگرم معادل دی‌اکسید کربن در هکتار تعیین گردید.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

GHG emissions footprint from potential feedstock production of biodiesel fuel (Case Study)

نویسندگان [English]

  • Amin Nikkhah 1
  • Bagher Emadi 1
  • Mehdi Khojastehpour 1
  • Seyed Hosein Payman 2
1 Ferdowsi University of Mashhad
2 University of Guilan
چکیده [English]

Population growth and increasing industrial and agricultural activities that cause GHG emissions and risk from environmental management is a serious challenge. In this research, the GHG emissions from peanut production as a potential feedstock for biodiesel fuel was investigated. Data were collected through interviews with 75 Peanut farmers. The cultivated areas were divided into three categories based on the size of peanut farms as 0.1–0.5 ha, 0.5-1 ha and larger than 1 ha. The results revealed that total GHG emissions of peanut production was obtained 822.29 kg CO2eq ha-1. The highest share of GHG emissions belonged to diesel fuel (57.90%) followed by machinery (18.6%).The mean difference between total GHG emissions per unit area among farm sizes including 0.1–0.5 ha and larger than 1 ha was significant at 5% level. Larger farms from 1 ha had the minimum amount of GHG emissions. Also, GHG emissions from peanut production as a potential feedstock for on liter biodiesel fuel production were calculated 1.17 kgCO2eqha-1.

کلیدواژه‌ها [English]

  • Environmental impacts
  • Clean fuel
  • Farm size
  • Peanut

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  • تاریخ دریافت: 30 تیر 1393
  • تاریخ بازنگری: 11 اردیبهشت 1394
  • تاریخ پذیرش: 04 خرداد 1394

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