基于絮凝沉降結合技術的水利水電工程砂石廢水處理研究

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中圖分類號：TQ110.9 文獻標志碼：A文章編號：1001-5922（2025）07-0049-04

Research of sand and stone wastewater treatment of water conservancy and hydropower projects based on flocculation and sedimentation combination technology

XIA Zhihua，TAO Wei （China New Building Materials Design and Research Institute Co.，Ltd.，Hangzhou 31O022，China）

Abstract：Through the experimental study of the sand and stone wastewater treatment processof water conservancy and hydropower projects，an efective wastewater treatment method was discussd.The mechanical dewatering of sandandgravelwastewaterbycombining coagulantandflocculanttechnologycansignificantlyreduce theconcentration of suspended solids and COD（chemical oxygen demand）.The results showed that when the mass concentrations of coagulant and flocculant were 1 g/L and 0.5g/L ，respectively，the removal rate of suspended solidsin wastewater reached more than 90% ，and the removal rate of COD exceeded 80% . The treated wastewater was also precipitated and filtered to further improvethe purification efect of water quality.The wastewater treatment process proposed in this study hasgood application prospects and economic benefits，and can provide a reference for wastewater treatment in water conservancy and hydropower projects

Key words：water conservancy and hydropower project;sandstone; wastewater treatment;process optimization 隨著水利水電工程建設快速發(fā)展，砂石廢水處 理成為各行業(yè)備受關注的問題。（剩余6253字）