To　obtain　an　effective　treatment　process　for　VAE　emulsion　wastewater,　coagulation-flotation　is　used.　Influences　of　hydraulic　condition,　pH　value,　coagulant　dosage　and　raw　water　quality　on　treatment　efficiencies　are　investigated.　Results　indicate　that　coagulation-flotation　with　ferric　chloride　is　an　effective　treatment　process　for　VAE　emulsion　wastewater.　The　treatment　efficiency　is　influenced　by　hydraulic　condition,　pH　value,　coagulant　dosage,　raw　water　quality　and　other　factors.　The　optimum　conditions　are　350　r/min　of　mixing　intensity,　8　min　of　mixing　time,　50%　of　reflux　ratio,　and　7-9　of　pH　value.　Under　the　best　experimental　condition,　turbidity　and　COD　of　raw　water　decreases　to　26.89　NTU　from　2653　NTU,　and　64.71　mg/L　from　3085　mg/L.　The　removal　rate　of　which　can　reach　99%　and　97.5%　respectively,　when　ferric　chloride　dosage　is　175　mg/L.　The　effluent　quality　can　satisfy　the　second　level　discharge　standard　specified　in　the　Integrated　Wastewater　Discharge　Standard　(GB　8978-96).　The　experiment　results　can　provide　a　technology　reference　for　the　engineering　application.