Cumhuriyet University, Department of Environmental Engineering, 58140 Sivas, Turkey.
Bioresour Technol. 2012 Aug;118:24-9. doi: 10.1016/j.biortech.2012.05.057. Epub 2012 May 24.
Partial nitrification under various concentrations of NaCl (0-40 g/l) at a constant operational condition was investigated in a submerged biofilter reactor. The highest NO(2)-N/NO(x)-N ratio (0.76) was achieved at the NLR of 830 g NH(4)-N/m(3) day with salt free wastewater. Small increase the salt content led to higher activities and the NH(4)-N removal efficiency increased from 92% to 95% at 1 g/l NaCl concentration. Over this concentration, each NaCl addition provoked the NH(4)-N oxidation and a sharp increase of inhibition was observed. The total oxidized NH(4)-N was achieved at the nitrogen loading rate (NLR) and surface loading rate (SLR) of 0.754 kg/m(3)day and 3.23 g/m(2) day, respectively without salt in the feed wastewater and it was decreased to 0.322 kg/m(3) day and 1.38 g/m(2) day at the salinity of 40 g/l in the PNBR.
在一个淹没式生物滤池反应器中，研究了在不同 NaCl 浓度（0-40 g/l）下的部分硝化作用，在恒定的操作条件下。在无盐废水中，当 NLR 为 830 g NH(4)-N/m(3) day 时，可达到最高的 NO(2)-N/NO(x)-N 比（0.76）。少量增加盐含量会导致更高的活性，并且在 1 g/l NaCl 浓度下，NH(4)-N 去除效率从 92%增加到 95%。超过该浓度，每次添加 NaCl 都会引发 NH(4)-N 氧化，并且观察到抑制作用急剧增加。在进料废水中没有盐的情况下，总氧化的 NH(4)-N 在氮负荷率（NLR）和表面负荷率（SLR）分别为 0.754 kg/m(3) day 和 3.23 g/m(2) day 时达到，而在 PNBR 中的盐度为 40 g/l 时，其值降低至 0.322 kg/m(3) day 和 1.38 g/m(2) day。
