The performance of ammonia nitrogen removal by using membrane-aerated biofdm reactor as domestic wastewater treatment

Kanty Driantami, Setyo Sarwanto Mursidik

Research output: Contribution to journalArticlepeer-review

Abstract

High concentration of NH3-N in wastewater discharges from sewage treatment plant can cause eutrophication of the surface water that has the negative impacts for aquatic ecosystems. Membrane-Aerated Biofilm Reactor (MABR) has been proposed as a wastewater technology to reduce NH3-N concentration in domestic wastewater. This study observed the performance of NH3-N removal in domestic wastewater using MABR. Domestic wastewater contains concentration of NH3-N from 73-104.8 mg/L (0.12-0.24 kg NH3-N/m3.d) and COD from 332-468 mg/L (0.56-1.05 kg COD/m3d). MABR was supplied by oxygen at the pressure of 20 kPa and study performed for 3 Hydraulic loading rate (HRT) variations which were 8, 10 and 12 h. After 33 days of running, the result showed COD/N ratio were about 3.9-5.72 with maximum efficiency of COD and NH3-N removal occurred when HRT 12 h, reached 88 and 89.58%, respectively. This indicated that NH3-N could remove by MABRat low COD/N ratio. Furthermore, autotrophs bacteria that responsible for oxidized NH3-N to NO2 - and NO3 - have slower growth rates compared with heterotrophs bacteria. Thus, longer HRT provided benefit for nitrification process and high NH3-N removal efficiency has been achieved.

Original languageEnglish
Pages (from-to)4759-4764
Number of pages6
JournalJournal of Engineering and Applied Sciences
Volume12
Issue number18
Publication statusPublished - 1 Jan 2017

Keywords

  • Ammonia nitrogen removal
  • Autotrophs bacteria
  • Domestic wastewater
  • Hydraulic retention time
  • Indonesia
  • Membrane aerated biofilm reactor

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