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Title

THE STUDY OF QUAL2KW MODEL EFFICACY ON RIVER SELF-PURIFICATION (A CASE STUDY OF KARUN RIVER AT INTERVAL OF ZARGAN TO KUTE AMIR)

Pages

 Start Page 103 | End Page 122

Abstract

 Background and Objective: KARUN RIVER is one of the largest rivers in the country and the present paper has studied Qual2kw model efficacy on SELF-PURIFICATION of KARUN RIVER at interval of Zargan to Kute Amir.Method: For this purpose changes in quality parameters of the river including: EC, NO3, TSS, BOD, DO, pH, and temperature in the year 2008-2009, for two months ofAugust (dehydration) and January(high water) simulated and calibrated within 30 days by aforementioned model and was compared with observed data in months of September and February of the same year in the stations of Zargan, Pole Panjom, and Kute Amir. In addition, for the determination of the validity of Qual2kw model and comparing of observed data with computational data, square of correlation coefficient (R2) and Standard Error of Measurement (SEr) were used, while for their significant test, T-test and F-test have done.Findings: In general, the output model represented the non-assimilation of pH and BODu parameters for two months, NO3 in months of August, TSS in months of January and low assimilation in other parameters in accordance with the input pollution in the defined interval of KARUN RIVER.Discussion and Counclusion: It aslo showed that the Qual2kw model has good efficacy for the investigation of river SELF-PURIFICATION and the KARUN RIVER, this model was able to simulate well.

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