تعادل بخشی بین عرضه و تقاضای آب به کمک پساب‌های شهری با در نظر گرفتن اثرات زیست ‌محیطی در آبخوان کوهدشت

نویسندگان
نادر نبی پور 1
سید آرمان هاشمی منفرد 2
مهدی اژدری مقدم 2
علی سردار شهرکی 3
1 کارشناسی ارشد
2 دانشیار گروه مهندسی عمران، دانشگاه سیستان و بلوچستان زاهدان
3 استادیار گروه مهندسی عمران، دانشگاه سیستان و بلوچستان زاهدان
10.22034/wmji.2025.2050675.1095
چکیده
در ایران خشک‌سالی‌های پی‌ در پی، برداشت‌های غیرمجاز از چاه‌ها و تقاضای رو به‌ رشد باعث فشار به سفره‌های آب زیرزمینی شده است. هدف پژوهش حاضر حذف بیلان منفی آبخوان و تعادل بخشی بین عرضه و تقاضای آب با استفاده از مدل WEAP در منطقه موردمطالعه می‌باشد. برای نیل به این هدف، 15 سناریوهای مختلف مدیریتی استفاده شد. هم‌چنین از مدل SDSM جهت تعیین سال آبی و جهت بررسی تأثیر دراز مدت سناریوها، افق زمانی ۲۰ ساله برای شبیه‌سازی منابع و مصارف در نظر گرفته شد و برای تجزیه ‌و تحلیل سناریوها و انتخاب بهترین سناریو از مدل‌های تصمیم‌گیری چند شاخصه (MCDM)، تکنیک خاکستری (GRA) استفاده شد. نتایج نشان داد که سناریوها به‌تنهایی نمی‌توانند باعث کاهش فاصله میان عرضه و تقاضای آب شوند؛ بنابراین گزینه A14 سناریو ترکیبی (Sc33) به ترتیب اجرای سیستم فاضلاب، افزایش راندمان تا 33 درصد و کاهش تلفات در سیستم‌های انتقال آب، در رتبه نخست قرار گرفت، در نتیجه برای کاهش تقاضای آب از چاه‌ها، استفاده از سناریو ترکیبی می‌تواند سالانه ذخیره آبخوان را تا 17/3 میلیون مترمکعب افزایش دهد. در این منطقه عمده‌ترین مصرف‌ کننده کشاورزی است بنابراین جهت افزایش راندمان آبیاری در کشاورزی پیشنهاد می‌شود مطالعات اقتصادی برای انتقال پساب و ارزیابی هزینه‌ها و منافع انجام شود.
کلیدواژه‌ها
آبخوان کوهدشت
بازچرخانی آب
تعادل میان عرضه و تقاضای آب
مدل WEAP
مدیریت یکپارچه

عنوان مقاله English

Equilibrium: A section between the supply and demand for water using urban wastewater while considering the environmental impacts in the Kouhdasht aquifer

نویسندگان English

Nader Nabipour 1
Seyed Arman Hashemi Monfared 2
Mehdi Azdari Moghadam 2
Ali Sardar Shahraki 3
1 Master's degree
2 Associate Prof., Dept. of Civil Engineering, University of Sistan and Baluchestan, Zahedan
3 Assistant Professor, Dept. of Civil Engineering, University of Sistan and Baluchestan, Zahedan
چکیده English

In Iran, consecutive droughts, unauthorized extraction from wells, and increased water demand have put pressure on groundwater resources. This research aims to eliminate the negative balance of aquifers and to achieve a balance between water supply and demand using the WEAP model in the study area. To achieve this goal, 15 different management scenarios were utilized. Additionally, the SDSM model was used to determine the hydrological year and to assess the long-term impacts of the scenarios, with a 20-year time horizon considered for simulating resources and uses. Multi-criteria decision-making models (MCDM) and Grey Relational Analysis (GRA) were employed to analyze the scenarios and select the best one. The results showed that single scenarios alone cannot reduce the gap between water supply and demand; therefore, option 14A, a combined scenario (Sc33) involving the implementation of a sewage system, increases efficiency by up to 33%, and reduces losses in water transfer systems, ranked first. As a result, using the combined scenario could annually increase aquifer storage by 3.17 MCM to reduce water demand from wells. In this area, the main consumer is agriculture, thus to improve irrigation efficiency in agriculture, it is recommended that economic studies for wastewater transfer and cost-benefit assessments be conducted.

کلیدواژه‌ها English

Balance between Water Supply and Demand
Integrated Management
Kouhdasht aquifer
Water recycling
WEAP Model

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