脱硫废水零排放工艺-振动膜 烟道蒸发

脱硫废水零排放工艺-振动膜 烟道蒸发脱硫废水零排放工艺脱硫废水零排放工艺振动膜振动膜+烟道蒸发烟道蒸发何守昭何守昭香港正昌资源及科技有限公司DunwellVMATCo.,Ltd.2016copyrightreservedDunwellGroupwww.dunwellgroup.com常规零排放工艺•机械蒸汽再压缩循环蒸发技术+晶种法技术•高效反渗透膜+MVR•大通道蝶式膜技术+MVR•电渗析+MVR2016copyrightreservedDunwellGroupwww.dunwellgroup.com常规处理法•有一点事共通：必需软化•膜受不了•MVR受不了2016copyrightreservedDunwellGroupwww.dunwellgroup.com常规处理法•投入大量生石灰和碳酸钠软化，40kg/m3•每吨脱硫废水软化成本RMB30~50元•以一间有2台600MW发电机的电厂，每小时产生25m3脱硫废水•每年软化费用RMB8,760,000元•每年投药量8,760吨(219辆40呎货柜)•才能进入蒸发器回收水•因浓度太高，膜技术也不能用2016copyrightreservedDunwellGroupwww.dunwellgroup.com如何减少蒸发？•蒸发的运行费用和吨水投资非常高•如何减少蒸发？•先要明白卷式RO膜的限制：–通道较窄–剪切力不足2016copyrightreservedDunwellGroupwww.dunwellgroup.com溶解度SubstanceFormula0°C10°C15°C20°C30°C40°C50°C60°C70°C80°C90°C100°CCalciumcarbonate(Aragonite)CaCO3-Aragonite000.000775000000000Calciumcarbonate(Calcite)CaCO3-Calcite000.000617000000000CalciumchlorideCaCl259.564.774.5100128013701471541590CalciumsulfateCaSO4.2H2O0.2230.2440.2550.2640.26500.24400.23400.2050MagnesiumcarbonateMgCO3000.039000000000Magnesiumc