Abstract:

A zeolite sequencing batch reactor(ZSBR) was used to achieve partial nitrification-ANAMMOX treatment of iron oxide red high ammonia wastewater in this study. With sodium carbonate used as added alkalinity, stable partial nitrification was achieved mainly by controlling FA and FNA, and the degree of partial nitrification was mainly regulated by alkalinity ratio and effluent pH. Results showed that the nitrite accumulation ratio of the ZSBR kept above 95%, and the m(NO₂^--N)/m(NH₄⁺-N) of the effluent remained at 1.1-1.5, and the highest nitrification load reached 0.72 kg/(m³·d). The enrichment of AOB and inhibition of NOB were realized in ZSBR, and the relative abundance of AOB(Nitrosomoadaceae) was 51.5%, while no NOB was detected.

Key words: zeolite, sequencing batch reactor, partial nitrification, iron oxide red wastewater, high ammonia

摘要：

为实现氧化铁红高氨氮废水的部分亚硝化-厌氧氨氧化处理，研究采用沸石序批式反应器（ZSBR），以获得高效稳定的部分亚硝化。ZSBR以碳酸钠作为外加碱度，通过调控FA与FNA实现稳定的亚硝化，并通过调节碱度投加比与出水pH控制反应器亚硝化进程。结果表明，启动后的ZSBR亚硝化率≥ 95%，出水m（NO₂^--N）/m（NH₄⁺-N）保持在1.1~1.5，最高亚硝化负荷达到0.72 kg/（m³·d），实现了AOB的富集与NOB的抑制，其中AOB（Nitrosomoadaceae）的相对丰度达到51.5%，未检测出NOB。

关键词: 沸石, SBR, 部分亚硝化, 氧化铁红废水, 高氨氮

CLC Number: 

• X703