STUDY ON EFFECT OF SALINITY TO ASSIMILATION CAPACITY OF ORGANIC POLLUTANTS IN THE CU DE RIVER’S WATER

Nguyen Thi Thanh Tu, Phung Chi Si, Dinh Xuan Thang

Abstract


This article presents the research results on effect of salinity to assimilation capacity of organic pollutants in the Cu De river’s water. It is one of the most important issues for studying the carrying capacity of biodegradable organic pollutants on the river basin. The results of three monitoring periods shown that the salinity (S-‰) is decreasing from estuary to upstream (from cross section MC1 to cross section  MC5), fluctuating within 2,73 ÷ 22,27‰, meanwhile assimilation capacity of organic pollutants is increasing. The linear correlation between salinity and disintegrated organic pollutants (∆BODt) is presented  by the equation:

Y(∆BODmh)= 10,72 – 1,166*S


Keywords


the Cu De river, salinity, organic pollutants, assimilation capacity.



DOI: https://doi.org/10.15625/1859-3097/13/1/3509 Display counter: Abstract : 34 views.


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