ارائه و ارزیابی یک روش پیشنهادی در تعیین مناسب ترین کاربرد پساب

نوع مقاله: مقاله پژوهشی

نویسندگان

1 مهندسی آبیاری و آبادانی دانشگاه تهران

2 گروه مهندسی آبیاری و آبادانی

3 مهندسی آبیاری و آبادانی. دانشگاه تهران

چکیده

افزایش تقاضا برای آب در بخش‌های مختلف، باعث افزایش اهمیت استفاده مجدد از فاضلاب تصفیه‌شده (پساب) برای کاربردهای گوناگون شده است. هدف از مقاله حاضر ارائه یک روش پیشنهادی در تعیین مناسب‌ترین کاربرد پساب بر اساس سطح کیفیت آن است. برای نیل به این هدف مشخصات 60 نمونه پساب ماهانه برای پنج سال (1391 تا 1395) و شانزده پارامتر از هر نمونه از تصفیه‌خانه شهر اراک تهیه و پس از تعیین شش گزینه ممکن مصرف پساب، پارامترهای مناسب انتخاب و پس از تدوین دو شاخص با کاربرد رویکردهای فازی و آنتروپی ضمن ارزیابی شاخص‌های پیشنهادی، بهترین گزینه استفاده از پساب در هر حالت تعیین شد. بر اساس نتایج مشخص شد که شاخص‌های پیشنهادی ضمن حساس بودن به پارامترها و سطح کیفیت پساب، کاربرد پساب را به‌خوبی تعیین نموده‌اند. به‌طوری‌که نتایج نشان داد که کیفیت پساب تصفیه‌خانه شهر اراک در پنج سال اخیر بهبود یافته و در سال پنجم، پساب این تصفیه‌خانه علاوه بر تولید علوفه دام و آبیاری فضای سبز در کاربری‌های صنعت، سبزی‌های پخته و تولید دانه‌های روغنی و تغذیه مصنوعی آبخوان نیز قابل‌استفاده تشخیص داده شده است. این در حالی است که پساب سال 1391 فقط برای آبیاری فضای سبز و تولید علوفه تأیید شده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Introduction and Assessment of a New Effluents Usage Method

نویسندگان [English]

  • Mahdi Rahimi 1
  • Kumars Ebrahimi 2
  • Shahab Araghinejad 3
1 Irrigation and Reclamation Eng. UT
2 University of Tehran
3 Irrigation and Reclamation Eng. UT
چکیده [English]

The increase in water demand from different aspects of water usage highlights the importance of the treated wastewater as a new water resource. The main aim of the current paper is to present a new method to specify the best applications for effluents involving fuzzy and entropy approaches based on the characteristics of effluents. To achieve this goal, the effluents’ characteristics data of Arak city wastewater plant were utilized from 2013 to 2017. Also, six possible consumption options were determined and considered. Then, the appropriate parameters that were involved with the new derived indices were selected and the best options were chosen. The mentioned indices are named the Fuzzy Effluents Quality Index (FEQI) and the Entropy Effluents Quality Index (EEQI). The results of the research indicate that not only the proposed indices are sensitive to the input parameters, but they also classify the effluents correctly. Moreover, the results illustrated that the quality of Arak effluents in the last 5 years have improved. As in the last year, according to the new indices, the effluents can be used in industrial, environmental, fodder production, cooked vegetables, oil seed production, and artificial groundwater recharge systems.

کلیدواژه‌ها [English]

  • Effluents Quality index
  • effluents usages
  • Fuzzy logic
  • Entropy
  • factor analysis
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