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• W2363286760 abstract "Ammonia contamination at the fish pond caused serious health problem for the fish due to high toxicity. Koi fish is considered as ammonia factory because during its metabolism, the fish produce large amount of ammonia which is directly related to the amount of food given each day. The concentration of ammonia in water must be controlled carefully because of its toxicity to koi fish that may cause stress and damages gills and other tissue, even in small concentration. Its mechanism includes blocking the oxygen transfer from the gills to the blood and may cause both immediate and long term gill damage. In this study, ammonia removal was conducted using aquaphonics-zeolite system. Green mustards were used as the aquaphonic plants and natural zeolites which obtained from ponorogo were modified using Sodium Chloride (0-5%) while the food amount given to the fish controlled at 0,1-0.3% mass of the fish. The total ammonia nitrogen was measured one hour after the fish was fed.The objectives of this reseearch are to study the effect of fish food addition on total ammonia nitrogen in the fish pond, to study the effect of NaCl addition on total ammonia nitrogen in the koi fish pond, and to study the effect of combination of fish food addition and zeolite modification on total ammonia nitrogen by using MANOVA. In this research, the concentration of total ammonia nitrogen was analyzed using spectrophotometer. Column studies were also conducted to find the breakthrough time of the pristine and modified zeolite and thomas model were found to fit the experimental data with good agreement. Adsorption isotherm were conducted to find the maximum adsorption capacity and the experimental data were fitted using Langmuir and Freundlich model where Langmuir model gave the best data interpretation. Kinetic studies concluded that the pseudo-second order control the adsorption mechanism.. The differences in the independent variables were found to give significance towards the responses proved by MANOVA method.From the research that was done, the adsorption using zeolite was effective, which could be seen from the result of coloumn studies that synthetic NH4Cl solution need longer time reach breakthrough state rather than the real aquaphonic system water. In this research, adsorption isotherm was appropriate using Langmuir equation, which could be seen from the value of good correlation factor (R2), between 0.95 to 0.99 for Langmuir equation and pseudo second order was chosen for adsorption kinetics, which could be seen from the consistency of ks as parameter. The aquaphonic and zeolite adsorption method was gave significant effect to fish pond which could be seen from the significant value < 0.1 in MANOVA statistic method." @default.
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• W2363286760 date "2016-01-01" @default.
• W2363286760 modified "2023-09-26" @default.
• W2363286760 title "The combination of adsorption with modified zeolite and aquaphonic system to remove total ammonia nitrogen in fish pond" @default.
• W2363286760 hasPublicationYear "2016" @default.
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