疏浚余水处理药剂配合比的研究

Study on Mixing Ratio of Residual Dredging Water Treatment Chemicals

疏浚行业由于是带水作业,余水量大,但是往往由于排泥场容量有限,泥土无法全部沉淀,造成大量浑浊余水外排,严重影响下游河湖水质。因此,余水处理一直是疏浚行业的一大难题。疏浚余水具有处理水量大、污染因子单一、微污染水的特点。采用泥水协同处理与处置,使余水经过处理后,达到《污水综合排放标准》(GB8978-1996)一级标准控制限值,在稳定达标的情况下,通过小试试验研究选出最佳药剂以及药剂最佳投药量,用于指导疏浚余水的处理。

Since the dredging industry is a water-carrying operation,large surplus water,however due to the limited capacity of the sludge dump,the soil cannot settle completely,large amount of turbid residual water is discharged,seriously affecting the water quality of downstream rivers and lakes.Therefore,residual water treatment has always been a major problem in the dredging industry.Dredged residual water has the characteristics of large amount of treated water,single pollution factor,and slightly polluted water.Coordinated treatment and disposal of mud and water is adopted,so that after the remaining water is treated,it has reached the control limit value of the first-level standard of"Integrated Wastewater Discharge Standard"(GB8978-1996),in the case of stable compliance,select the best medicament and the optimal dosage of medicament through small-scale experimental research,it is used to guide the treatment of dredged residual water.