ABSTRACT

This study investigates the treatment of saline domestic wastewater using nanofiltration (NF) and activated carbon (AC) adsorption. The permeate flux behavior during NF was influenced by the type of organic matter (OM) model (glucose vs. alginate), as well as its concentration and solution chemistry. The observed rejections of OM were within the range of 73% to 80% for glucose and 95% to 99% for alginate. Adsorption experiments showed that the optimum AC dose was 4 g/L for glucose adsorption and 8 g/L for alginate adsorption. Treatment of real domestic wastewater showed that the flux behavior tended to be similar to that of the alginate model but the observed rejection was similar to that of the glucose model. The COD rejection of NF was within the range of 77% to 79%. Further treatment using AC adsorption increased the COD removal to ~ 95%.

摘要

本研究调查了使用纳滤 (NF) 和活性炭 (AC) 吸附处理含盐生活废水。NF 过程中的渗透通量行为受有机物 (OM) 模型类型（葡萄糖与藻酸盐）及其浓度和溶液化学的影响。观察到的 OM 排斥在葡萄糖的 73% 至 80% 和藻酸盐的 95% 至 99% 的范围内。吸附实验表明，吸附葡萄糖的最佳活性炭剂量为 4 g/L，吸附藻酸盐的最佳活性炭剂量为 8 g/L。实际生活废水的处理表明，通量行为往往与藻酸盐模型相似，但观察到的排斥与葡萄糖模型相似。NF 的 COD 去除率在 77% 到 79% 的范围内。使用 AC 吸附的进一步处理将 COD 去除率提高到约 95%。