摘要
向改良型氧化沟工艺中投加新型絮凝剂聚磷硫酸铁(PPFS),研究其生物-物化协同除磷效果。结果表明,在氧化沟内投加15 mg/L的PPFS时,协同作用较明显,系统对TP、COD、NH4+-N和TN的去除效果均较好,出水TP的质量浓度在0.5 mg/L以下,因此PPFS的优化投加量为15 mg/L,最佳投加点为氧化沟(好氧段)。投加PPFS可改善污泥的沉降性能,且对污泥活性没有不良影响,产生的物化污泥量也很少。
A new flocculant- polyphosphate ferric sulfate was dosed into modified oxidation ditch, to study on the biological and physicochemical phosphorus removal function. The results showed that when the dosage was 15 mg/L, synergism was obvious, the removal rate of TP, COD, NH4＋-N and TN were good, the effluent TP concentration was less than 0.5 mg/L, so it confirmed the best dosage of PPFS was 15 rag/L, the optimum location was oxidation ditch （the aerobic phase）. Using PPFS can improve the settlement property of the activated sludge, and it had no adverse influence on the activity of the sludge, and it generated a little ofphysicochemical sludge.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第2期87-89,93,共4页
Technology of Water Treatment
基金
国家"十一五"水专项(2009ZX07315-002)
