School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China.
Suzhou Shijing Technology Co., Ltd, Suzhou 215000, PR China.
Bioresour Technol. 2024 Oct;410:131298. doi: 10.1016/j.biortech.2024.131298. Epub 2024 Aug 15.
Tunnel Oxide Passivating Contacts (TOPcon) battery in the photovoltaic industry generates high ammonium wastewater during the production process, the adaptability of using the anaerobic ammonia oxidation (Anammox) process for photovoltaic wastewater (PVW) treatment is a research hotspot. Based on the analysis of photovoltaic wastewater quality, the effectiveness of nitrogen removal, sludge characteristics and microbial communities were examined. The results showed that when the influent NH-N concentration of PVW was lower than 150 mg·L, the nitrogen removal efficiency (NRE) was almost 100 %. In addition, the NRE decreased from 74 % sharply to 20 % when the NH-N concentration was increased from 175 mg·L to 200 mg·L. The extracellular polymeric substances (EPS) content increased with elevated ammonium concentration in the influent, indicating that microorganisms secreted more EPS to resist elevated nitrogen loading. The main functional populations were Candidatus Kuenenia (0-24 %). The influent ammonium concentration is recommended to be < 200 mg·L.
光伏产业中的隧穿氧化钝化接触（TOPcon）电池在生产过程中会产生高氨氮废水，利用厌氧氨氧化（Anammox）工艺处理光伏废水（PVW）的适应性是研究热点。基于对光伏废水水质的分析，考察了氮去除效果、污泥特性和微生物群落。结果表明，当进水 NH-N 浓度低于 150mg·L 时，氮去除效率（NRE）几乎达到 100%。此外，当 NH-N 浓度从 175mg·L 增加到 200mg·L 时，NRE 从 74%急剧下降到 20%。随着进水氨氮浓度的升高，胞外聚合物（EPS）含量增加，表明微生物分泌更多的 EPS 来抵抗升高的氮负荷。主要功能种群为 Candidatus Kuenenia（0-24%）。建议进水氨氮浓度<200mg·L。
