At present, the key of the treatment of nitric wastewater(especial low C/N wastewater) is the lack of silicon source, so the effect of nitrogen removal is not very good.

• 目前含氮废水(特别是低C/N废水)生物脱氮处理所面临的最大问题是碳源不足,从而导致脱氮效果不佳。