| Autor: |
Nurisman, Enggal, Alkahfi, Mohammad Ikhwan, Razikah, Yessi Astri, Rahmatullah, Rahmatullah, Haryani, Nina, Rosmania, Rosmania |
| Zdroj: |
Key Engineering Materials; May 2022, Vol. 920 Issue: 1 p7-13, 7p |
| Abstrakt: |
Ammonia is a harmful substance on wastewater if discharged to the river, then it must be treated well. This research was aimed to examine the potential for the type of bacteria Brevundimonas diminuta in the ammonia degradation process of wastewater. Earlier step was done to examine bacteria growth in synthetical medium of ammonia concentration ranged 5 – 25 ppm. It shows that the bacteria could grow well within that ranges. Then, the bacteria performances were examined to grow in wastewater sampled from Musi River containing ammonia ranged 1.9 – 2.94 mg/L in the airlift bioreactor. The wastewater used in bioreactor was 1 L. Air was injected into the bioreactor with variations in the air flow rate of 1.5 to 4.5 L/m and with varying observation times from 1.5 to 6 hours. The optimal decrease in ammonia levels has occurred when the air flow rate was 3 L/min for 6 hours and the ammonia level was reduced from 2.94 mg/L to 1.76 mg/L. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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