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<strong>Effect of superficial gas velocity and ratio of bed volume to reactor volume of inverse fluidized bed biofilm reactor on the removal of ammonia-nitrogen from wastewater</strong>

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Title Statement <strong>Effect of superficial gas velocity and ratio of bed volume to reactor volume of inverse fluidized bed biofilm reactor on the removal of ammonia-nitrogen from wastewater</strong>
 
Added Entry - Uncontrolled Name SWAIN, ANUP KUMAR; IGIT, Sarang
Sahoo, Abanti ; NIT, Rourkela
Jena, Hara Mohan; NIT, Rourkela
Bhuyan, Satish Chandra; NIT, Rourkela
 
Uncontrolled Index Term Ammonia-nitrogen; Biofilm reactor; Inverse fluidization; Nitrification; Wastewater treatment
 
Summary, etc. <span>Hydrodynamic parameters of an inverse fluidized bed biofilm reactor (IFBBR) have been studied using spherical polypropylene (PP) particles having average diameter and density of 5.63 mm and 920 kg/m3 respectively. Gas-phase holdup (g) was analyzed for various ratios of settled bed volume to reactor volume (Vb/Vr) and superficial gas velocities (Ug) with a liquid recirculation velocity (Ul) of 0.0021 m/s. The g values were found to increase with Vb/Vr ratios up to a certain limit and then decrease with further increase of Vb/Vr ratios. The effect of Ug, Vb/Vr ratios, and initial concentration of ammonia-nitrogen (NH4 +-N) on the removal of NH4 +-N from synthetic wastewater were studied. The optimal values of Vb/Vr ratio and Ug were found to be 0.380 and 0.0085 m/s respectively for all initial NH4 +-N concentrations. Complete removal of NH4 +-N was achieved in 8 to 44 hours for different initial NH4 +-N concentrations. It was also observed that with the increase in initial NH4 +-N concentrations, the nitrification decreases.</span>
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2022-04-04 13:15:16
 
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http://op.niscair.res.in/index.php/IJCT/article/view/52855
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 28, ##issue.no## 6 (2021): Indian Journal of Chemical Technology
 
Language Note en