【摘要】 利用单纯形优化法获得了从亚硝酸盐反硝化脱氮的工艺条件为 :pH8.3,温度 2 8℃ ,C/N比1.6 ,泥 /水比为 0 .32 ,在此条件下能够稳定、高效地处理高浓度的含氮废水 (NO2 - -N〈35 0mg·L- 1) ,其脱氮速率高达 16 2mg·L- 1·h- 1,脱氮率 >99%。更多还原

【Abstract】 Nitrogen removal technology of denitrification from nitrite in artificial wastewater was studied. The artificial wastewater was prepared by dissolving NaNO 2 in water,while methanol as addition carbon. The optimum conditions of denitrification,which were pH 8.3,temperature 28 ℃,N/C1.6,sludge/water 0.32 respectively,were given by the controlled weighted simplex method.Under the optimum conditions the nitrogen removal rate and velocity of denitrification are 99% and 162 mg/L·h respectively,when the concentration of nitrite lower than 350 mg/l,it is showed that the denitrification process we got is steady and powerful to treat higher nitrogen concentration wastewater.更多还原