Study on the Treatment of Tannery Wastewater with the High Concentration of Ammonia Nitrogen by MBR

Jian Gen Wang; Ya Hui Liu

doi:10.4028/www.scientific.net/AMM.71-78.2186

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Study on the Treatment of Tannery Wastewater with...

Study on the Treatment of Tannery Wastewater with the High Concentration of Ammonia Nitrogen by MBR

Abstract:

The removal efficiency of COD_Cr and ammonia nitrogen of the high concentration of ammonia nitrogen from tannery effluent by membrane bioreactor (MBR) was investigated. The results showed that when the operation of MBR is stable, influent COD_Cr loads are less than 4.8 kg/m³•d, the average removal rate of COD_Cr was over 88%, the removal rate of ammonia nitrogen reached to 90%; when dissolved oxygen (DO) was 1.2mg/L and 1.8 mg/L, the reactor still has excellent treatment efficiency, and the removal rate of COD_Cr and ammonia nitrogen can achieved over 90%. In addition, through the study of membrane flux, it is easy to find that membrane flux decreases rapidly, the membrane requires periodic cleansing.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

2186-2189

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.2186

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Online since:

July 2011

Authors:

Jian Gen Wang, Ya Hui Liu

Keywords:

Ammonia Nitrogen, Membrane Bioreactor (MBR), Removal Rate

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