What is pre-treatment?什么是预处理?Definition定义：预处理是为了保证下一阶段处理的水质要求。Why to do pretreatment?为什么要预处理For money城市用水的标准 City raw water standardTurbidityNTU 3.0ConductivityS/cm 300pH 6.5-8.5Bacteriacfu/mL 100.0TDSppm 1000Ironppm 0.3Hardnessppm 450manganeseppm 0.1sulfateppm 250chloridppm 150copperppm 1.0Other heavy metalppm 0.3反渗透膜的进水条件R.O inlet standardITEMITEMR.O membrane(CPA)R.O membrane(CPA)General standardGeneral standardNitto membraneNitto membraneTurbidityTurbidity0.30.3SDISDI33PHPH411411TemperatureTe
