بررسی احداث تصفیه‌خانه‌ها بر کیفیت و آلودگی رودخانه کوهستانی عباس‌آباد

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و مهندسی آب، دانشکده کشاورزی، دانشگاه بوعلی‌سینا، همدان، ایران.

2 گروه علوم و مهندسی آب، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران.

10.22059/jwim.2024.369706.1127

چکیده

هدف این پژوهش، بررسی وضعیت کیفی رودخانه کوهستانی عباس‌آباد همدان و ارزیابی تأثیر اجرای تصفیه‌خانه فاضلاب شهری و پساب‌های کشاورزی بر روند آلودگی آن است. در این راستا، سه سناریو شامل شرایط موجود (سناریوی مرجع)، احداث تصفیه‌خانه با کاهش مقدار اکسیژن موردنیاز بیوشیمیایی و شیمیایی (BOD و COD) در سطح کلاس B1 مطابق با استاندارد سازمان حفاظت محیط‌زیست (سناریوی دوم) و احداث تصفیه‌خانه با افزایش مقدار اکسیژن محلول (DO) در سطح کلاس B1 (سناریوی سوم) بررسی شده و موردمقایسه قرار گرفتند. بدین منظور ابتدا شبیه‌سازی رودخانه با استفاده از مدل QUAL2Kw صورت پذیرفت و طی سناریوی اول با درنظرگرفتن شرایط واقعی تخلیه آلاینده‌ها برای بازه زمانی اردیبهشت‌ماه و مرداد‌ماه سال 1400 مورد واسنجی و صحت‌سنجی قرار گرفت. سپس با شناسایی شش منبع مهم نقطه‌ای آلوده‌کننده رودخانه، سناریوهای دوم و سوم اجرا شد. نتایج سناریوی مرجع نشان داد با افزایش مقادیر BOD و COD آب، مقدار DO آن نیز کاهش می‌یابد و رودخانه از نظر کیفی در شرایط بحرانی قرار می‌گیرد. هم‌چنین با کاهش مقادیر BOD و COD در سطح استاندارد کلاس B1، مقدار DO در سناریوی سوم نسبت به سایر سناریوها افزایش چشم‌گیری خواهد داشت. بنابراین، بر‌اساس این نتایج عملکرد سناریوی سوم نسبت به دیگر سناریوها بهتر بوده و احداث تصفیه‌خانه‌های پیشنهادی تأثیر معنی‌داری در بهبود روند کیفی رودخانه‌ عباس‌آباد دارد. هم‌چنین پیشنهاد می‌گردد به‌منظور بهبود وضعیت کیفی رودخانه‌ها از ورود آلاینده‌ها به درون بستر رودخانه جلوگیری شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Examining the effect of treatment plant construction on Abbas Abad Mountainous River's quality and pollution

نویسندگان [English]

  • Atefe Noorali 1
  • safar marofi 1
  • Omid Babamiri 2
1 Department of Water Science and Engineering, Faculty of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
2 Department of Water Science and Engineering, Faculty of Agriculture, Tabriz University, Tabriz, Iran.
چکیده [English]

The purpose of this research is to investigate the quality status of the Abbas-Abad Mountainous River in Hamedan and evaluate the impact of the implementation of the urban sewage treatment plant and agricultural effluents on its pollution process. In this regard, three scenarios include the existing conditions (reference scenario), the construction of a treatment plant by reducing the amount of biochemical and chemical oxygen (BOD and COD) at the level of class B1 in accordance with the standard of the Environmental Protection Organization (the second scenario) and the construction of a treatment plant with an increase in the amount Dissolved Oxygen (DO) at the level of class B1 (third scenario) was investigated and compared. For this purpose, the simulation of the river was done using the QUAL2Kw model and during the first scenario, taking into account the actual conditions of pollutant discharge for the period of May and August 1400, it was calibrated and validated. Then, by identifying six important point sources polluting the river, the second and third scenarios were implemented. The results of the reference scenario showed that with the increase of BOD and COD values of water, its DO value also decreases and the quality of the river is in a critical condition. Also, with the reduction of BOD and COD values at the standard level of class B1, the value of DO in the third scenario will increase dramatically compared to other scenarios. Therefore, based on these results, the performance of the third scenario is better than the other scenarios, and the construction of the proposed treatment plants has a significant effect on improving the quality of the Abbas-Abad River. It is also suggested to prevent pollutants from entering the riverbed in order to improve the quality of rivers.

کلیدواژه‌ها [English]

  • Biochemical Oxygen Demand
  • Chemical Oxygen Demand
  • Dissolved Oxygen
  • Qual2kw model

مراجع

  1. Abdeveis, S., Sedghi, H., Hassonizadeh, H., & Babazadeh, H. (2020). Application of water quality index and water quality model QUAL2K for evaluation of pollutants in Dez River, Iran. Journal of Water Resources, 47, 892-903.
  2. Babamiri, O., & Marofi, S. (2021b). A multi-objective simulation–optimization approach for water resource planning of reservoir–river systems based on a coupled quantity–quality model. Environmental Earth Sciences, 80(11), 389.
  3. Babamiri, O., Venae, A., Guo, X., Wu, P., Richter, A., & Ng, K. T. W. (2021a). Numerical Simulation of Water Quality and Self-Purification in a Mountainous River Using QUAL2KW. Journal of Environmental Informatics, 37(1).
  4. Biglari, M. R., Sima, S., & Saadat pour, M. (2019). Modeling and management of the river water quality for aquatic life using a source control approach (case study: The Zarrineh River). Iran-Water Resources Research, 14(5), 57-70. (In Persian).
  5. Chapra, S. C., Pelletier, G. J., & Tao, H. (2008). QUAL2K: A modeling framework for simulating river and stream water quality, version 2.11: Documentation and user’s manual. Civil and Environmental Engineering Department, Tufts University, Medford, MA, 109.
  6. Chapra, S. C., Pelletier, G. J., & Tao, H. (2006). QUAL2K: A modeling framework for simulating river and stream water quality, version 2.04: Documentation and user’s manual. Civil and Environmental Engineering Department, Tufts University, Medford, MA.
  7. Chapra, S. C., & Pelletier, G. J. (2003). QUAL2K, A modeling framework for simulating river and stream water quality (beta version): Documentation and user’s manual. Civil and Environmental Engineering Department, Medford, Tufts University.
  8. Environmental Protection Organization, environmental rules and standards (in the field of human environment), publications of Environmental Protection Organization. (2017).
  9. Emami Ghara, F., Fazloula, R., & Khoshravesh, M. (2023). Investigating trends of qualitative changes of Neka River using the QUAL2Kw in the downstream of Gelevard Dam. Irrigation and Water Engineering, 14(1), 266-283.
  10. Farkhani, Sh. (2018). Qualitative modeling of Haraz River using QUAL2K model. In: Proc. of Conference on Civil engineering, Architecture and Urbanism of the Islamic Countries, 16-17 May, Tabriz, Iran. (In Persian).
  11. Herbay, J. P., Smeers, Y., & Tyteca, D. (1983). Water quality management with time varying river flow and discharger control. Water Resources Research, 19(6), 1481-1487.
  12. Kamal, N. A., Muhammad, N. S., & Abdullah, J. (2020). Scenario - based pollution discharge simulations and mapping using integrated QUAL2K-GIS. Environmental Pollution, 259, 113909.
  13. Karamouz, M., & Karachian, R. (2013). Planning and quality management of water resources systems. Amir Kabir University of Technology Publications, Iran, 35-40.
  14. Lakshmi, E., & Madhu, G. (2020). Evaluation and modeling of dissolved oxygen and re - aeration rate in river Periyar, south India. Indian Journal of Scientific Research 10(2), 1-15.
  15. Mehrasbi, M.R., & Farahmand Kia, Z. (2015). Water Quality Modeling and Evaluation of Nutrient Control Strategies Using QUAL2K in the Small Rivers. Journal of Human Environment and Health Promotion, 1(1), 1-11.
  16. Pasha Zadeh Laleh, Z., Jafari, H., & Vaezihir, A. (2021). Qualitative assessment of the Aji-Chay River (Tabriz plain) based on the specific use’s quality indices. Irrigation and Water Engineering, 11(4), 344-367. (In Persian).
  17. Pelletier, G., & Chapra, S. (2008). QUAL2Kw theory and documentation. A modeling framework for simulating river and stream water quality. Environmental Assessment Program Olympia, Washington, 98504-7710.
  18. Rafiee, N., & Azari, A. (2020). Evaluating the Effects of Constructing Urban and Agricultural Wastewater Treatment Plants on Improvement of Quality and Contamination Trends of Dez River. Journal of Civil and Environmental Engineering, 50(98), 33-41. (In Persian).
  19. Rafiee, M., Akhond Ali, A. M., Moazed, H., Jaafarzadeh, N., & Zahraie, B. (2013). A Case Study of Water Quality Modeling of the Gargar River, Iran. Journal of Hydraulic Structures, 1(2), 10-22.
  20. Ranjbar, M. (2006). Management of natural heritage and environmental hazards of river basins in order to strengthen its touristic and ecotourism potential (case study of Abbas Abad River basin in Hamadan). Geographical quarterly of the land, Scientific - Research, 3(10). (In Persian).
مدیریت آب و آبیاری
دوره 14، شماره 4
اسفند 1403
صفحه 863-875

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