بررسی اثرات زیست محیطی مزارع پرورش ماهی بخش سوسن سرخاب برکیفیت آب سد شهید عباسپور با استفاده از شاخص IRWQI
محورهای موضوعی : علوم آب
صائب خوش نواز کومله
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ناهید عیدیوندی
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1 - گروه مهندسی آب، واحد شوشتر، دانشگاه آزاد اسلامی، شوشتر، ایران
2 - گروه مهندسی عمران-مهندسی و مدیریت منابع آب، واحد شوشتر، دانشگاه آزاد اسلامی، شوشتر، ایران
کلید واژه: آلودگی , شاخص کیفی IRWQI , کیفیت آب , چشمه بریم مردون , مزارع پرورش ماهی قزل آلا ,
چکیده مقاله :
در این مطالعه برای ارزیابی کیفیت آب رودخانه از ۵ ایستگاه نمونه برداری شد دو ایستگاه شاهد و سه ایستگاه از خروجی سه مزرعه در سال ۱۴۰۱ به صورت ۱۵ روز یکبار و در دو ماه از فصل تابستان انجام گرفته است. که ۲۰ پارامتر کیفی آب شامل BOD5 ، COD ، TDS ، EC، PH ، T، NH4 ، NO3 ، PO4 ، T.C ، coliform’s ، T.H ، Ca2+ ، mg2+ ، NH3 ، کدورت ، فلوئور، DO ، سولفات، قلیائیت انتخاب شد، سپس با استفاده از داده‌های حاصل نمودار تغییرات هر کدام از پارامترها رسم شد و در ادامه کیفیت آب بر اساس شاخص کیفی آب های سطحی و زیرزمینی ایران (IRWQI) مورد ارزیابی قرار گرفت. نتایج به دست آمده نشان داد که آب این رودخانه دارای کیفیت متوسط، نسبتا بد و بد می باشد که کیفیت متوسط برای دو شاهد و نسبتا بد برای مزرعه خورشیدی و رشیدی و بد برای مزرعه حسن پور بوده است. که از دلایل قرارگیری کیفیت آب در این کلاسه ها در فصل تابستان می توان علاوه بر فعالیت بالای پساب حاصل از استخر پرورش ماهی به عواملی چون کاهش دبی رودخانه، همچنین افزایش فعالیت های تفریحی و تفرجی در محدوده ی این رودخانه، پساب حاصل از کشاورزی ، تخلیه فاضلاب های روستایی و تراکم بالای دام در منطقه اشاره کرد.
. In this study, samples were taken from 5 stations to assess the quality of river water, two control stations and three stations from the outlet of three farms in 1401 every 15 days and in two months of the summer season. Twenty water quality parameters including BOD5, COD, TDS, EC, PH, T, NH4, NO3, PO4, T.C, coliform's, T.H, Ca2+, mg2+, NH3, turbidity, fluorine, DO, sulfate, alkalinity were selected, then using the resulting data, a graph of changes in each parameter was drawn, and then the water quality was evaluated based on the Iranian Surface and Groundwater Quality Index (IRWQI). The results obtained showed that the water of this river has average, relatively bad, and bad quality, which was average for the two controls, relatively bad for the solar and Rashidi farms, and bad for the Hassanpour farm. The reasons for the water quality being in these classes in the summer season include, in addition to the high activity of effluent from the fish farming pond, factors such as reduced river flow, increased recreational and leisure activities in the area of this river, agricultural effluent, rural sewage discharge, and high livestock density in the region.
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