Consumption of ammonia-nitrogen by aob in immobilized batch culture

Kasmuri, Norhafezah; Lovitt, Robert W.; Omar, MH

doi:10.4314/jfas.v9i6s.21

Cited by 2 publications

(4 citation statements)

References 15 publications

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“…In this case, the nitrifying bacteria in the leachate samples consumed the ammonia-nitrogen in the nitrification process under aerobic condition [13]. By referring to the nitrogen cycle, the ammonia-nitrogen are converted to the nitrite-nitrogen by nitrification bacteria in this flask [14].…”

Section: B Characteristics Of Leachate Sample Determined In a Laboramentioning

confidence: 99%

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Ammonia-Nitrogen and Phosphate Removal in Leachate using Algae and Bacteria Mixture

Kasmuri*,

Misni

2019

IJRTE

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Leachate is a liquid that has been produced by the waste especially organic waste. In an engineered sanitary landfill, biological treatment is a common practice to reduce the leachate contaminants. The effluent from treated leachate needs to comply with the standard set by the Department of Environment (DOE), Malaysia before it is being released into the river. The leachate contains a high number of contaminants such as ammonia-nitrogen, phosphorus, heavy metal, biochemical oxygen demand (BOD), chemical oxygen demand (COD) and suspended solids. This study focused on the possibility of treating leachate by using algae and bacteria in biological treatment in removing ammonia-nitrogen and phosphate in leachate obtained from Air Hitam Sanitary Landfill, Puchong. Initially, the characteristics of the leachate sample with in-situ and laboratory tests were analyzed to quantify the contaminants in the leachate. In this research, the concentration of leachate samples together with algae and bacteria was diluted in one (1) liter of distilled water varied between 10%, 30%, 50%, 80% and 100% (v/v) in each flask. Then, all the samples were aerated to ensure that the algae and bacteria were at the optimum condition to treat the contaminants in the leachate for all the respective flasks. The results of ammonia-nitrogen, phosphate, nitrite-nitrogen, and nitrate-nitrogen were taken for every 3 days for 15 days to determine the percentage of the removal due to the algae and bacteria uptake in the leachate for all the samples. After 15 days, the percentage of removal of the contaminants were analyzed using factorial design. It showed that 50% (v/v) of leachate concentration in the diluted flask exhibits the highest removal percentage of ammonia-nitrogen with 96.95% ammonia-nitrogen being removed from the leachate. For phosphorus, 10% (v/v) diluted leachate concentration marked highest which is 94.92% has been removed from the leachate. Finally, the regression equation was established to predict the rate of ammonia-nitrogen removal.

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Section: B Characteristics Of Leachate Sample Determined In a Laboramentioning

confidence: 99%

“…The two mentioned effects contributed to the ammonia-nitrogen removal efficiency by mixed of algae and bacteria. The previous researcher used ammonia-nitrogen concentration and duration as the two main factors that affect the ammonia-nitrogen removal [14][15]. [11].…”

Section: Statistical Analysis By Full Factorial Design In Design Omentioning

confidence: 99%

Ammonia-Nitrogen and Phosphate Removal in Leachate using Algae and Bacteria Mixture

Kasmuri*,

Misni

2019

IJRTE

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“…Nitrification is a two-step process of converting ammonia-nitrogen to nitrite-nitrogen and then to nitrate-nitrogen. The biological degradation process of nitrification was carried out by two autotrophic microorganisms knows as ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) [18]. The reduction of ammonia-nitrogen in day 0 to day 14 due to ammonia-oxidizing bacteria (AOB) consumed the ammonia-nitrogen.…”

Section: Ammonia -Nitrogen (Nh 3 -N) Nitrite -Nitrogen (No 2 -N) mentioning

confidence: 99%

“…In the meantime, the concentration of nitrate-nitrogen slightly increased from day 0 to day 14 caused by the nitrite-oxidizing bacteria (NOB) utilized the nitrite-nitrogen to nitrate-nitrogen [18]. The high amount of ammonia-nitrogen in the water bodies will affect the water quality and resulting in an adverse impact on the aquatic organism.…”

Section: The Concentration Of Nh 3 -N No 2 -N and No 3 -N In The mentioning

confidence: 99%

Micro plastic Characteristics and Removal of Ammonia Nitrogen in Batch Culture

Tarmizi¹,

Kasmuri²,

Kasmuri³

2019

IJEAT

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Plastic waste has become a sensitive issue in the world since this material needs a longer time to degrade. This material will take a month to a thousand years to decompose. Thus, would contribute to the environment pollution, which will affect human health and aquatic life. This research study focused on the biodegradation process of micro-plastic (PE, PP, PET and PS) in the batch culture system using a colony of bacteria obtained from leachate in Ayer Hitam Landfill, Puchong. After the batch experiment of micro-plastic degradation, percentage removal of ammonia-nitrogen, chemical structure and percentage weight loss were examined and evaluated. Succeeding through the incubation of micro-plastic in batch culture for fourteen (14) days period, biodegradation was verified by the estimation of the dry weight loss. From the result obtained, dry weight loss of polyethylene (PE) is the highest (3.46%) in 14 days and polyethylene (PE) shows the greater removal of ammonia nitrogen (NH3 -N) (44.17%). Besides that, polystyrene (PS) micro-plastic showed a significant change in chemical structural which was obtained by Fourier Transform Infrared (FTIR). Here, the new absorption peak C=O (aldehydes) was present in PS micro-plastic. Furthermore, PS micro-plastic has a high percentage mass loss in the second stage of thermal degradation by Thermogravimetric (TGA) analysis. It can be concluded that incubation time is needed to optimize the micro-plastic in the biodegradation process.

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Consumption of ammonia-nitrogen by aob in immobilized batch culture

Cited by 2 publications

References 15 publications

Ammonia-Nitrogen and Phosphate Removal in Leachate using Algae and Bacteria Mixture

Ammonia-Nitrogen and Phosphate Removal in Leachate using Algae and Bacteria Mixture

Micro plastic Characteristics and Removal of Ammonia Nitrogen in Batch Culture

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