高效活性污泥对黄原胶废水的降解

Degradation of Xanthan Gum Wastewater by High-effective Activated Sludge

从黄原胶废水中分离筛选出高效降解菌株J,将其以不同培养量添加到活性污泥中,研究其CODcr降解能力。实验表明:将菌株J以150 mL添入活性污泥中,在污泥沉降比=30%、V(黄原胶废水)=500 mL时摇床培养(t=37℃、n=110 r/min),与对照活性污泥比较,12 h降解效率提高60.2%;当将KH2PO4以80 mg添入高效活性污泥中,在V(黄原胶废水)=700mL,其余实验条件相同时,与对照高效活性污泥比较,12 h内降解效率提高9.2%以上。

A high-efficiency degrading bacteria J was separated from xanthan gum wastewater, and then added into activated sludge with various amounts to analyze their ability of degradation rate of CODor. The experimental results showed that when adding 150 mL bacteria J into activated sludge and the sludge SV30% ,500 mL xanthan gum wastewater, rocking hammock foster（37 ℃, 110 r/min）, the degradation ratio is increased by 60.2% in 12 h compared with activated sludge;when adding KH2 P04 80 mg into the high activated sludge,in the same addition except 700 mL xanthan gum wastewater, the degradation ratio is increased by 9.2% in 12 h compared with activated sludge.