بررسی امکان استفاده از پساب تصفیه‌خانه شهر قصر شیرین در پرورش آبزیان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه شیمی، جهاد دانشگاهی استان کرمانشاه، کرمانشاه، ایران

2 گروه شیمی، واحد زنجان، دانشگاه آزاد اسلامی، زنجان، ایران

3 کارشناس ارشد شیلات، اداره کل شیلات استان کرمانشاه، کرمانشاه، ایران

چکیده

به‌کارگیری منابع نامتعارف آب مانند استفاده مجدد از انواع فاضلاب تصفیه شده با رعایت اصول محیط‌زیستی، اهمیت زیادی دارد. هدف از این پژوهش، بررسی تأثیر پساب تصفیه شده با روش وتلند مصنوعی شهر قصر شیرین در استان کرمانشاه بر کیفیت آب، عملکرد رشد و ترکیبات بیوشیمیایی بدن ماهی به‌منظور استفاده بهینه در صنعت آبزی‌پروری بود. در این پژوهش پارامترهای کیفی آب شامل کدورت، DO،COD ، MPN کل کلیفرم، نیترات، فسفات و آزمایش‌ها در بخش زیست‌سنجی، پایش بافت به لحاظ وجود عوامل بیماری‌زا بررسی شد. نتایج نشان ‌داد که مقدار COD، کدورت و MPN کل کلیفرم پساب خروجی از تصفیه‌خانه به‌ترتیب 33 میلی‌گرم در لیتر، NTU 4/13 و 230000 است. آنالیز پساب بعد از عبور از حوضچه UV و آب‌گیری کامل استخر با پساب تصفیه شده و گندزدایی شده، مقدار COD، کدورت و MPN کل کلیفرم به‌ترتیب 25 میلی‌گرم در لیتر، NTU 13 و 8000 است. بار میکربی پساب با عبور از حوضچه UV به‌طور چشمگیری کاهش پیدا کرده است. آزمایش‌های زیست‌سنجی انجام شده نشان‌دهنده رشد مناسب آبزیان در طی روند رشد بوده و شاخص بالا و مناسبی داشته است. همچنین با توجه به آزمایش‌های میکربی انجام شده اثری از میکرب‌های قابل‌انتقال به انسان در بافت ماهیان مشاهده نشد. با توجه به استانداردهای ملی و نتایج آنالیز خروجی واحد تصفیه و گندزدایی مشاهده ‌شد در شرایط و سیستم تصفیه فعلی امکان استفاده از این فاضلاب تصفیه شده برای پرورش ماهی در منطقه وجود ندارد و نیاز به تصفیه بیشتر است.

کلیدواژه‌ها

عنوان مقاله [English]

Investigating the Possibility of Using the Effluent of Qasr-e-shirin Wastewater Treatment Plant in Aquaculture

نویسندگان [English]

  • Fatemeh Shahrezaei 1
  • Parvaneh Pakravan 2
  • Mojtaba Pouria 3
1 Department of Chemistry, ACECR, Kermanshah, Iran
2 Department of Chemistry, Zanjan Branch, Islamic Azad University, Zanjan, Iran
3 MSc. of Fisheries, Kermanshah Province Fisheries Organization, Kermanshah, Iran
چکیده [English]

The use of unconventional water sources, such as the reuse of treated wastewater in accordance with environmental principles, is of great importance. The aim of this study was to investigate the effect of artificial wetland treatment of Qasr-e-shirin in Kermanshah province on water quality, growth performance and biochemical composition of fish body for optimal use in the aquaculture industry. In this study, water quality parameters including turbidity, DO, COD, MPN total coliform, nitrate, phosphate, and experiments in sections of bioassay, monitoring of aquatic tissue due to the presence of pathogens were satisfactory.The results show that the COD, turbidity and MPN values of the total effluent from the treatment plant are 33 mg/L, 13.4 NTU and 230,000, respectively. Effluent analysis took place after passing through the UV pool and complete dewatering of the pool with treated and disinfected effluent; COD, turbidity and MPN values of total coliform were 25 mg/L, 13 NTU and 8000, respectively. The microbial load of the effluent is dramatically reduced by passing through the UV pool. The bioassays performed confirmed the proper growth of aquatic animals during the growth process and had a high and appropriate index; also, according to microbiological tests, no traces of human-borne microbes were observed in fish tissue. According to the national standards and the results of the analysis of the output of the treatment and disinfection unit, it is observed that in the current conditions and treatment system, it is not possible to use this treated wastewater for fish farming in the region and more treatment is needed.

کلیدواژه‌ها [English]

  • Effluent Reuse
  • Artificial Wetlands
  • Aquaculture
  • Water Analysis
  • Bioassay

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مجله آب و فاضلاب
دوره 33، شماره 2 - شماره پیاپی 139
خرداد و تیر 1401
صفحه 62-74

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