2020
DOI: 10.37190/epe200402
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Attapulgite suspension filter material for biological aerated filter to remove CODMn and ammonia nitrogen in micro-polluted drinking water source

Abstract: An attapulgite suspended (AS) filter material was successfully prepared and used in combination with biological aerated filter (BAF) to pretreat excess organic matter and ammonia nitrogen in micropolluted water. The AS filter material was of low density and floated on the water surface, which is beneficial to optimize the hydraulic conditions. Through scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) It was found that the surface of the filter material was uneven, the pores … Show more

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