بهینه سازی چندهدفه و مدیریت تخصیص پساب تصفیه شده به منظور آبیاری فضای سبز شهری
محورهای موضوعی :
برگرفته از پایان نامه
سیدعلی کاظمی نژادفرد
1
,
اکرم الملوک لاهیجانیان
2
,
محمدرضا نیکو
3
,
امیرحسام حسنی
4
1 - دانشجوی دکتری مدیریت محیط زیست، دانشکده منابع طبیعی و محیط زیست، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
2 - استاد، دانشکده منابع طبیعی و محیط زیست، گروه مدیریت محیط زیست، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
3 - دانشیار دانشکده مهندسی، بخش مهندسی عمران و معماری، دانشگاه سلطان قابوس، مسقط، عمان
4 - استاد، دانشکده منابع طبیعی و محیط زیست، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
تاریخ دریافت : 1401/10/11
تاریخ پذیرش : 1402/11/19
تاریخ انتشار : 1402/11/01
کلید واژه:
مدیریت منابع آب,
فضای سبز شهری,
بهینهسازی چندهدفه,
پویایی سیستم,
پساب تصفیهشده,
چکیده مقاله :
چکیده
مقدمه: کشور ایران از جمله کشورهای خشک و کمآب جهان محسوب میشود که تأمین آب شرب در بسیاری از شهرهای آن، یکی از معضلات اصلی مدیریت منابع آب شهری میباشد. در این راستا، یکی از مناسبترین روشها برای مبارزه با کمآبی، کاهش و محدودسازی استفاده از آبهای با کیفیت بالا در آبیاری فضای سبز می باشد. لذا نیاز به مدیریت مؤثر در برنامهریزیهای کلان شهری در بخش مدیریت منابع آب فضای سبز شهری، بهویژه در فصلهای گرم سال بیش از پیش احساس میشود. هدف از پژوهش حاضر، بهینهسازی چندهدفه و مدیریت تخصیص پساب تصفیهشده با استفاده از مدل های پویایی سیستم (سیستم داینامیک) بهمنظور آبیاری فضای سبز شهری در کلانشهر شیراز میباشد.
روش: بدین منظور، عوامل مؤثر بر تأمین منابع آب و آبیاری فضای سبز شهر شیراز، شبیهسازی شده و با توجه به آن، پیشبینی مصارف و میزان منابع در دسترس و بهینهسازی تخصیص، ارائه شده است. همچنین، در پژوهش حاضر، عوامل مؤثر در شرایط فعلی و آینده که میتواند بر مدل پیشنهادی تأثیرگذار باشد، مورد توجه قرار گرفته و دو سناریو افزایش بازده آبیاری فضای سبز و استفاده از پساب تصفیهشده اعمال گردیده است.
یافته ها: نتایج نشان دادند که افزایش بازده آبیاری از طریق مدیریت انتقال، ذخیره و توزیع آب و همچنین آبیاری در ساعات مناسب، تأثیر به مراتب بیشتری در مقایسه با استفاده از پساب تصفیهشده به منظور کاهش برداشت از منابع محدود کنونی خواهد داشت؛ بهگونهای که با افزایش راندمان آبیاری به میزان 40 و 50 درصد بهترتیب مقدار 14 و 39 درصد از کمبودهای آبی برطرف میشود.
نتیجه گیری: نتایج شبیهسازی نشان داد که بهمنظور رسیدن به پایداری سامانه باید ترکیبی از انواع سناریوهای کاهش سرانه مصرف آب فضای سبز، افزایش بازده آبیاری، استفاده از پساب تصفیهشده و فضاهای خشکمنظر در توسعه فضاهای شهری مدنظر قرار گیرد.
چکیده انگلیسی:
Abstract
Introduction: Effective management in metropolitan planning of urban green space water resources is very important due to the rapid growth of urbanization and the limitation of water resources. The purpose of this research is multi-objective optimization and management of treated wastewater allocation using dynamic system models for urban green space irrigation in Shiraz metropolis.
Methods: The factors affecting the supply of water resources and irrigation of the green spaces of Shiraz city have been simulated and according to that, the consumption forecast and the number of available resources and the allocation optimization have been presented. Also, in the current research, effective factors in the current and future conditions that can affect the proposed model have been taken into consideration, and two scenarios have been applied, including increasing the efficiency of green space irrigation and the use of treated wastewater.
Results: The results showed that increasing the efficiency of irrigation through management of transfer, storage and distribution of water and also irrigation at the right times has a much greater effect compared to the use of purified wastewater in order to reduce the extraction of limited resources. In such a way, by increasing the irrigation efficiency by 40% and 50%, respectively, 14% and 39% of water shortages will be solved.
Conclusion: The simulation results showed that in order to achieve the stability of the system, a combination of scenarios of reducing per capita water consumption in green spaces, increasing irrigation efficiency, using purified wastewater and dry landscaped spaces should be considered in the development of urban spaces.
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