fa Treatment stategies with herbal or others Treatment stategies with herbal or others پژوهشي Original research papers <p>A 4 days study was conducted to determine the effects of Different concentration of bioaugmentor bacterial strain <em>Bacillus licheniformisi,</em> <em>B. subtilis</em>, <em>B. polymyxa, B. laterosporus </em>and<em> B. circulans</em> (Protexin Aquatech, UK) on adjustment of parameters of water quality as TAN, NO2-N, NO3-N and turbidity from the effluent of Common Carp ponds. Effects of time and concentration were studied as a completely randomized split-plot design. Time and concentration and their interaction had a significant difference (P<0.05) on changes of total ammonium nitrogen, nitrate nitrogen, nitrite nitrogen and turbidity. The total counts of bacteria recorded in the water of bioremedated tanks were also lower than that in the control tank.&nbsp;</p> Bacillus, bacterial treatment, parameters of water quality, bioremediation 44 54 http://ijaah.ir/browse.php?a_code=A-10-35-37&slc_lang=fa&sid=1 M Naderi Samani 10031947532846001375 10031947532846001375 Yes 1 Ph.D student of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran H Jafaryan 10031947532846001376 10031947532846001376 No Department of Fishery, Gonbad University of Agriculture Sciences and Natural Resources, Gonbad, Iran H Gholipour 10031947532846001377 10031947532846001377 No Department of Fishery, Gonbad University of Agriculture Sciences and Natural Resources, Gonbad, Iran M Harsij 10031947532846001378 10031947532846001378 No Department of Fishery, Gonbad University of Agriculture Sciences and Natural Resources, Gonbad, Iran M Farhangi 10031947532846001379 10031947532846001379 No Department of Fishery, Gonbad University of Agriculture Sciences and Natural Resources, Gonbad, Iran