EVULATION EFFECTS OF Cryptocoryne walkerii (S C H O T T) AS A BIORESTORER ON ELIMINATION OF TURBIDITY

Abstract

Our objective is to remove inorganic colloids that cause permanent turbidity from water systems, to enhance transparency and to eliminate turbidity by means of using Cryptocoryne walkerii (S c h o t t). Duration dependant changes in nephelometric turbidity (NTU), total biomass and chlorophyll-a, b (chl-a,b) caretonoids variation were evaluated after applications. NTU value decreased in 17.13% in the first application compared to control; while in fourth application, which has a higher turbidity value, it regressed to 19.67%. An analysis on initial and final values of this application group reveals that it eliminated 74.24% of turbidity pursuant to control depending on time. C. walkerii, which we consider as a good biorestorer in restoration of systems with high inorganic turbidity, reduced the initial NTU value from 28.4 to 3.71 and achieved a success of 74.24%.