充水比对CASS工艺处理污染物效果影响的研究

Influence of water filling ratio on CASS process removing contaminants

在充水比分别为10%、20%、30%的情况下,选取进水参数差别不很大的10个循环周期对重庆市某污水处理厂进行生产性试验研究。研究结果表明:CASS工艺对各污染物的去除性能变化规律与理论相一致,即充水比越小,每个周期的进水量越小,负荷也就越小,各污染物的去除率就越高;不同充水比对各污染物去除率和出水水质虽有影响,但无论采用何种充水比,仅针对本污水厂而言,出水总是能稳定达标,说明CASS工艺的抗冲击负荷能力比较强。

Under the condition that the water filling ratios were 10%, 20% and 30% respectively, the operative experiment of a wastewater treatment plant in Chongqing city was investigated through the selected 10 cycles whose influent parameters were in a minor difference. The results showed that; the change regulation of contaminants removal performance of CASS process was consistent with the theory： the less the water filling ratio was, the less the influent quantity of each cycle and hydraulic loading were, and the higher the removal rates of contaminants were; although the water filling ratio may influence the removal rates of contaminants and the effluent water quality, for the said wastewater treament plant, the effluent can always meet the discharge standard no matter taking which A, which showed that. CASS process had a strong anti-shock loading capability.