铁粉-过氧单硫酸盐联合秸秆增强污泥脱水性能

Iron Powder-Peroxymonosulfate Combined with Straw to Enhance Sludge Dewatering Performance

研究通过铁粉活化过氧单硫酸盐(Fe^0+PMS)联合废弃物秸秆(WS)增强污泥脱水性能。结果表明,与原污泥相比,Fe^0+PMS+WS联合处理的污泥脱水性能显着提高。在Fe^0、PMS、WS投加质量分数分别为1.5、0.15、0.5 g/g时得到最佳脱水效果,在该条件下污泥压缩系数降低50%。Fe^0+PMS可有效地破坏胞外聚合物(EPS),将污泥絮体分解成较小的颗粒并且添加秸秆改善了污泥脱水通道。在Fe^0循环实验中,Fe^0+PMS+WS预处理保持了较高的脱水效率,且更具有经济潜力。

Enhanced sludge dewatering performance by iron powder activated peroxomonosulfate (Fe^0 +PMS) combined with waste straw (WS) was studied. The results showed that compared with the raw sludge, the dewatering performance of the combined treatment of Fe^0 +PMS+WS was significantly improved. The optimum dehydration effect was obtained when the Fe0 , PMS and WS dosage was 1.5 g/g, 0.15 g/g and 0.5 g/g. Under this condition, the sludge compression coefficient was reduced by 50%. Fe^0 +PMS could effectively destroy the extracellular polymer (EPS) to decompose the sludge flocs into smaller particles and added straw to improve sludge dewatering channels. In the Fe^0 cycle text, the Fe^0 +PMS+WS pretreatment maintained a high dehydration efficiency and has more economic potential.