2008•Unpublished venueRequires access
Study on Short-cut Biodenitrification by Immobilized Nitrite Bacteria and Immobilized Denitrifying Bacteria
Rong Lan
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Abstract
The Nitrite bacteria and denitrifying bacteria were made into immobilized cells respectively using polyvingly alcohol(PVA) and sodium alginate(CA) as carrier,adding appropriate SiO2 powder,and then used them to carry out the removal nitrogen experiment.The results showed under the conditions of temperature of 30℃,aerations of 110rpm with the ratio of immobilized cells 1:1 and the seed volume 15%(W/V),treating artificial water(NH4+-N=150mg/L,alkalinity(NaHCO3)=1700mg/L,pH=8.0) for 27h,the denitrogenation rate was 97.53%;treating eutrophic water(NH4+-N=34.62mg/L,pH=6.7) for 20h,the denitrogenation rate was 79.51%.