【摘要】 选用聚乙烯醇(PVA)和海藻酸钠(CA)作为载体,添加适量SiO2粉末,将筛选出来的高效亚硝化细菌和反硝化细菌分别制成固定化细胞,联合进行脱氮实验.结果表明:按1:1的比例,亚硝化细菌和反硝化细菌固定化细胞接种量为15%(W/V),在温度为30℃,摇床转数为110rpm的条件下处理合成废水(NH4+-N=150mg/L,碱度(NaHCO3=1700mg/L,pH=8.0),27h,脱氮率为97.53%;处理富营养化水体(NH4+-N=34.26mg/L,pH=6.7),20h,脱氮率达到79.51%.更多还原

【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%.更多还原