Recovery　of　zinc　sulfide　from　acidic　wastewater　and　zinc　ash　of　zinc　hot　galvanizing　plants　was　investigated　in　this　study.　Sample　ZnS　was　characterizd　by　energy　dispersive　X-ray　spectrometer　(EDS),　X-ray　diffraction　(XRD),　fourier　transform　infrared　spectroscopy　(FTIR),　and　field　emission　transmission　electron　microscopy　(FETEM),　and　the　supernatant　was　analyzed　by　inductively　coupled　plasma　optical　emission　spectroscopy　(ICP-OES).　Also,　the　dynamics　process　was　performed.　EDS　and　ICP　showed　that　the　purity　of　sample　ZnS　could　reach　85.45%　and　the　supernatant　could　be　made　of　compound　ferrous　coagulant　because　of　high　concentration　of　iron　with　a　value　of　2　g/L,　and　low　concentrations　of　the　other　heavy　metals　which　met　the　emission　standard　of　pollutants　for　electroplating.　XRD　patterns　illustrated　that　a　kind　of　cubic　structure　dominated　its　morphology.　Adjusting　pH　and　titration　could　enhance　the　crystal　form　of　ZnS.　The　average　size　of　the　crystallites　has　been　estimated　using　the　Scherrer　formula.　It　was　found　that　the　size　of　the　particles　was　in　a　narrow　range　of　3~6　nm.　The　FTIR　patterns　of　zinc　sulfide　precipitates　indicated　that　the　ZnS　presented　good　infrared　transparency.　Moreover,　the　temperature,　pH,　and　adding　mode　had　insignificantly　effects　on　the　infrared　transparency.　The　FETEM　image　and　XRD　patterns　of　ZnS　demonstrated　that　the　sample　ZnS　was　flaky　and　nearly　spherical,　as　well　as　multilayer　stacking　with　a　phenomenon　of　reunion　and　weak　dispersing.　It　could　be　known　by　dynamics　experiments　that　the　sulfide　precipitation　using　Na2S　corresponded　with　reverse　first-order　kinetics　equation,　the　activation　energy　was　39.04　kJ/mol,　and　the　sulfide　precipitation　was　controlled　both　by　the　chemical　and　diffusion　process.