1、 l 1998- 06- 28Vol.24 No. 6 1998 环 境 保 护 科 学 990 l ) ZEThe Test and Study on Treatment ofPyrophosphate Coppering Wastewater文凤余 岳 峰 (胜利油田孤岛采油厂 东营 257000)杨书玲 (沈阳市大东区环境保护监测站)41 论述了亚铁共沉淀法处理焦磷酸盐镀铜废水的试验研究. 研究结果表明,处理工艺简单,操作方便,是一种较有效的处理方法,在研究基础上提出了焦磷酸盐镀铜废水处理的工艺流程和技术条件.1oM 焦磷酸盐镀铜废水 共沉淀 硫酸亚铁ABSTRACT This arti
2、cle isabout the treatment of pyrophosphate coppering wastewater by using ferroussulfate to change copperpyrophosphate into copper oxide.Copper is co- precipitation by ferric hydroxide.The result of research declares the process issimple,operation is convenient.So it is a significant way to deal with
3、 the wastewater.Based on the research,the technical processof pyrophosphate coppering wastewater and technical condition were put forward in the paper.KEY WORDS Pyrophosphate Coppering Wastewater Co-precpitation Ferrous Sulfate1 实验原理A1z K. MT 3K.Cu2P2O7+ 3K4P2O7 = 2K6Cu(P2O7)2pH8 9 H,A1iTCu(P2O7)26-
4、 , K= 1.010- 9.)1 , PA、s z、%、0 .yN,49 e.1 实验原理_l F ; M,|Cu2O,7M =N N _ Ti, M _ T,|Cu2O , ,V7r“ “.? 31Q:Fe2+ + 2OH- = Fe(OH)2Fe(OH)2+ OH- - e= Fe(OH)32Cu(P2O7)26- + 2OH-+ 2e=Cu2O+ 4P2O4-7 + H2O2 实验结果与讨论 L L=l,1SsT:4 s A, 3. Cu2 460mg/L; P2O4-7 1600mg/L;pH= 9.52.L 0 ,0 (B, T i/.2.1 pH“YsY |l “25mL,F 8
5、% FeSO4167H2O 4mL.pH,Q10min,V r rAc V1 U.V1 pH“YpH2. 01 6.60 7.95 8.52 9. 33 10. 69 11.20 11.62 12. 00c (mg/L) 105 11.7 7.95 5.05 3. 40 2. 10 1.50 0.90 1. 50V1 Vn, “pH 6, 0 i. pHV11.7 H, 0c 6 t , 3Cu(OH)3-#Cu(OH)42- .pH e11.0 11.7, 1 .2.2 Q HW“Y) ZE Vs、 .BQ . Q HW, _25mLl “gF4mL; M, epH11.40 11. 43W
6、,MQ HW、 rAc V2 U.V2 Q HW“YQ HW(min) 5 10 15 20 25 30c (mg/L) 2. 3 1. 8 0. 4 0.5 1.3 1.6V2 Vn,QKD HW15 20min.2.3 ; MgF “YsY |l “25mL,F ; M,pH11P,Q HW15min, rAc V3 U.V3 ; MgF “Y; MgF (mL) 2.0 2.5 3. 0 3. 5 4. 0c (mg/L) 4.38 2.38 0. 75 0. 55 0. 50V3 Vn, “ ; MF 9F, c /.l ; M81100 14 H, c t.YV L, V“ :M E) l V._25mLl “F 3.5mL8% Fe-SO4 7H2O, epH11.0 11.7,Q HW15 20min, c 0.55mg/L,Mc 4.20mg/L. pH ,F pH.3 废水处理工艺流程 kT,wil ) /: :l ,u |., -gF ; M,5FapH,F 04l YV5Q ( ,Q , |s ,) b , 5F pH6 9.,u r . R.) e, TZL, B r) ZE.17
