بررسی روش‌های نوین احیاء چاه‌های آب به منظور استفاده عملیاتی در کشور

نوع مقاله : پژوهشی

نویسندگان

1 استادیار، دانشکدۀ علوم و فنون نوین، دانشگاه تهران

2 دانشجوی کارشناسی ارشد، دانشکدۀ مهندسی مکانیک، دانشگاه تربیت مدرس

3 شرکت آب و فاضلاب روستایی استان لرستان، خرم‏ آباد

چکیده

یکی از معضلات چاه‏ها پس از بهره‌برداری طولانی‌مدت از آنها، ایجاد رسوبات روی لولۀ جدار یا شیارهای گراول پشت لوله است. این رسوبات به‌رغم وجود آب در بستر آبخوان، از نفوذ آب به درون چاه جلوگیری می‌کند و بنابراین میزان آبدهی چاه را به‌شدت کاهش می‏دهد. احیای چاه‏ها حذف رسوبات ایجاد‌شده در لولۀ جدار است. از گذشته روش‏هایی برای احیای چاه‏ها وجود داشته است، ولی امروزه با گسترش علم، تکنولوژی‏های جدیدی توسعه یافته است که راندمان بهتری دارد و موجب آسیب کمتری به سفرۀ آب زیرزمینی و محیط زیست می‏‌شود. در این پژوهش ابتدا روش‏های نوین احیای چاه‏ها بررسی می‌شود. سپس معیارهایی برای تشخیص مؤثربودن هر یک از روش‏ها برای اجرا در کشور پیشنهاد می‌شود. در ادامه روش‏های مؤثر شوک سیال و جت آب به‌دلیل بازدهی زیاد و صرف زمان و هزینۀ کمتر، به‌عنوان روش‏های مناسب برای استفاده در کشور انتخاب و توصیه شده‏اند.
 
 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Investigating modern methods of water wells rehabilitation for use in Iran

نویسندگان [English]

  • Alireza Hadi 1
  • Hamed Rahimi Sharbaf 2
  • Ali Tahmasbi 3
1 Assistant Professor, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
2 MSc. Student, Tarbiat Modares University, Tehran, Iran
3 Rural Water and Wastewater Company of Lorestan Province
چکیده [English]

One of the problems associated with long term use of wells is creation of deposits on well screen or gravel packs. The deposits, despite the presence of water in the context of the aquifer, prevent the penetration of water into the well. As a result, it greatly reduces the amount of water production of the well. Rehabilitation of wells is characterized by removing the deposits from the front and back of the well screen. So far, there have been some methods of well rehabilitation, nowadays, however, with the development of technology, more efficient methods have been developed causing less damage to the aquifer and the environment. In this study, new methods of well rehabilitation are investigated for implementation in Iran. A criterion for determining the efficiency of the methods is proposed. The method of air shock in combination to water jet is estimated to be more efficient with less time and cost consumption for implementation in Iran.

کلیدواژه‌ها [English]

  • Well rehabilitation
  • design
  • well development
  • air shock
  • water jet

مراجع

منابع
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اکوهیدرولوژی
دوره 4، شماره 3
مهر 1396
صفحه 873-886

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سابقه مقاله

  • تاریخ دریافت: 10 اسفند 1395
  • تاریخ بازنگری: 07 اردیبهشت 1396
  • تاریخ پذیرش: 20 اردیبهشت 1396

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