Yazar "Oz, U." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ X ]
    Öğe
    Examination of Ammonium Removal Efficiency and pH Changes with Natural Adsorbents (Zeolite and Bentonite for Water Quality Applying in Aquaculture
    (Centre Environment Social & Economic Research Publ-Ceser, 2019) Oz, M.; Sahin, D.; Sertasi, E.; Oz, U.; Karsli, Z.; Aral, O.
    Various methods can be used to remove ammonium from the water. In this study, the objective was the adsorption of ammonia by using harmless natural adsorbents. The toxic effect of ammonia on aquatic organisms changes depending on pH values. It was also focused on investigate the effects of the adsorbents on the pH in ammonium adsorption process.In this research, six trial groups (zeolite (Z:7 g.l(-1), 14 g.l(-1)), bentonite (B:7 g.l(-1), 14 g.l(-1)), zeolite+bentonite (Z+B:3.5 g.l(-1) + 3.5 g.l(-1), 7 g.l(-1) + 7 g.l(-1))) with 3 repetitions were created. At the end of the experiment, TAN, NH3 and pH values were calculated 7.15 +/- 0.23, 6.04 +/- 0.16, 8.59 +/- 0.20, 7.69 +/- 0.23, 7.61 +/- 0.16, 6.57 +/- 0.15; 0.28 +/- 0.01, 0.24 +/- 0.01, 0.40 +/- 0.01, 0.41 +/- 0.01, 0.32 +/- 0.01, 0.29 +/- 0.00; 8.10 +/- 10.01, 8.10 +/- 0.01, 8.18 +/- 0.01, 8.24 +/- 0.01, 8.13 +/- 0.00, 8.16 +/- 0.01 for 7 g.l(-1)Z, 14 g.l(-1)Z, 7 g.l(-1)B, 14 g.l(-1)B, 7 g.l(-1)Z+B, 14 g.l(-1)Z+B respectively. There were difference in TAN, NH3 and pH values between the experimental groups (p<0.05). Zeolite and bentonite are natural adsorbent used for removal ammonia in aquaculture. When the data acquired in the experiment are evaluated, it was determined that zeolite have the best values in the same conditions like temperature, initial pH, initial concentration, particles size and amount. An increase in the pH and decrease in NH3 values was also detected in 6 experimental groups, but it was determined that this increase did not exceed the optimum values for aquaculture.
  • [ X ]
    Öğe
    The assessment of raw diatomite mineral as filter equipment for aquaculture practices
    (Springer, 2024) Oz, U.
    The research was planned to determine the usability of natural diatomite in aquaculture conditions. The effects of using two different sizes and three different amounts of raw diatomite mineral on aquaculture water parameters for freshwater species and their usage characteristics were investigated. The research was carried out in two separate stages. In the first experimental setup, the effects of two different sizes (100-125 mu m powder and 3-5 mm granule) and three different amounts of diatomite (2, 4, 6 g/0.5 L freshwater) on water parameters were investigated. At the end of the first stage, a second experimental setup was prepared to determine the possibility of diatomite abrasion and mixing into water. Based on the ideal size and amount of diatomite determined in the first stage, the diatomites were placed in the WP-300F internal filter (with filter sponge), and a trial setup was formed with two groups in three repetitions. As a result of this research, it was determined that 3-5 mm diatomite, at a rate of 6 g per 0.5 L of water, can be recommended to be used for filtration as filtration material and substrate material for freshwater aquaculture applications.
  • [ X ]
    Öğe
    THE POTENTIAL APPLICABILITY OF NATURAL MINERALS AS FILTER MEDIA FOR MODULATING WATER QUALITY IN AQUATIC ECOSYSTEMS
    (Aloki Applied Ecological Research And Forensic Inst Ltd, 2022) Oz, M.; Sahin, D.; Yilmaz, E.; Oz, U.
    The optimal water quality requirement varies among species, and natural filtration materials can be used in aquatic systems to provide and maintain species-specific water quality parameters. Ammonia is one of the nitrogenous compounds originating from the metabolic wastes of aquatic organisms in aquatic ecosystems. Toxic substances and ammonia can be controlled in various ways by ion exchange and adsorption. In this study, the effects of natural clinoptilolite and diatomite on fresh water parameters were determined. This investigation was conducted by trial groups with 3 replicates for 16 days in two experimental systems. For the first experimental group, 3 g of raw zeolite (Z) was directly placed in a 500 ml freshwater aquarium, and the second experimental group was arranged with 3 g of raw diatomite (D) under the same conditions. The third experimental group was described as the control group (C) without zeolite and diatomite. Water parameters (such as pH and ammonium) were determined daily during the experiment period (8 days). After experiment 1, when zeolite and diatomite reached saturation, a desorption system was created with 3 groups containing 3 replicates, and this period was named experiment 2. During the 8-day period, water parameters were determined 7 times. At the end of the study, it was found that the NH4+- N concentrations different statistically (P < 0.05). pH, temperature and oxygen values did not vary among the experimental groups (P > 0.05). The results suggested that zeolite and diatomite have good adsorption performance for NH4+- N removal from the aqueous environment.