The sulfur(thiosulfate)-driven autotrophic denitrification coupled with Anammox (SDDA) process is proposed as an emerging technology for wastewater containing NH₄⁺-N and NO₃⁻-N. However, the influence of organic matter on the SDDA process is not fully understood. A long-term experiment has shown that a moderate organic (acetate) (＜140 mg/L COD) can accelerate the heterotrophic/autotrophic denitrification and Anammox activity, to reach as high as 92.8% ± 0.3% total nitrogen at a loading rate of 1.34 kg-N/(m³·d). Batch test results showed that Anammox made the largest contribution to the removal of nitrogen, even in an SDDA system with COD addition. Additionally, organics can promote the bioavailability of solid sulfur through reaction with sulfide to form polysulfides, which increased nitrite accumulation to forward Anammox process. Sulfur-oxidizing bacteria (e.g., Thiobacillus and Denitratisoma) coexisted with Anammox bacteria (e.g., Ca. Brocadia and Ca. Kuenenia) in the SDDA system despite the addition of exogenous COD.

提出了硫（硫代硫酸盐）驱动的自养反硝化与厌氧氨氧化（SDDA）工艺相结合的新兴技术，用于处理含NH ₄ ⁺ -N和NO ₃ ^-- N的废水。但是，有机物对SDDA过程的影响尚不完全清楚。一项长期实验表明，适度的有机（乙酸盐）（＜140 mg / L COD）可以加速异养/自养反硝化和厌氧氨氧化活性，在氮的加载量高达92.8％±0.3％的情况下1.34千克N /（m ³·d）。批量测试结果表明，即使在添加了COD的SDDA系统中，Anammox对脱氮的贡献最大。此外，有机物可通过与硫化物反应形成多硫化物而提高固体硫的生物利用度，从而增加亚硝酸盐的积累，从而促进Anammox工艺的发展。尽管添加了外源的COD，但SDDA系统中的硫氧化细菌（如硫杆菌和嗜盐杆菌）与厌氧细菌（如Brocadia和Ca. Kuenenia）共存。