溅水充氧生物滤池处理农村污水的研究

开发了一种处理农村污水的低能耗地埋式一体化溅水充氧生物滤池装置,通过拔风和溅水复合充氧技术实现了大幅度节能条件下的好氧生物处理.考察了在不同水力负荷及COD、NH4 -N容积负荷条件下本装置的处理效果,结果表明,在水力负荷小于10 m3/(m2·d)、COD及NH4 -N容积负荷分别小于0.3 kg COD/(m3·d)和0.08 kg NH4 -N/(m3·d)的条件下,可以取得较高的去除效果和良好的出水水质,COD、NH4 -N和TN的平均出水浓度分别为58.94 mg/L、2.78 mg/L和8.23 mg/L,平均去除率分别为51.7%、86.4%和70.6%.

Research on spattering trickling filter for treatment of rural domestic wastewater

An underground integrated wastewater treatment system with low energy consumption, which was called spattering trickling filter(STF), was researched and developed. Aerobic treatment with great energy conservation was achieved through combined aeration technologies with spattering trickling filter. Removal effects under different hydraulic loadings and volumetric loadings of COD and NH⁺₄-N were analyzed. The results showed that good effluent quality and high removal efficiencies could be obtained on the condition that hydraulic loading of 10 m³/(m²·d), COD volumetric loadings of 0.3 kg/(m³·d) and NH⁺₄-N volumetric loadings of 0.08 kg/(m³·d), respectively. The effluent average concentrations of COD, NH⁺₄-N and TN were 58.94 mg/L, 2.78 mg/L and 8.23 mg/L, and their average removal rates were 51.7%, 86.4% and 70.6%, respectively.