An experimental and analytical study of Permasep B10 separation characteristics

摘要: Abstract In this study, the performance of a small sea water reverse osmosis (RO) desalination system, fitted with single DuPont B10 hollow-fibre permeator, was investigated. Variations product flow rate, Qp, and concentration, Cp, as function feed Cf, pressure, P, temperature, T, Qf were studied by conducting both pure salt (NaCl) experiments. The experimental results indicated that flux linearly dependent on hydraulic driving force while non-linear, particularly at high concentrations low pressure. Lowering rate increased recovery, φ, proportionately Cp slightly. addition, φ temperature in form, φT= 1.035(T−25 φ25. further analysed using two different transport models. Based membrane model Kimura Sourirajan, permeability coefficient, A, found to remain relatively constant about 1.65 × 10−12 cm2-sec/g above pressure 55.2 105 N/m2 (800 psig), complete-mixing gave an average value A 1.18 cm2-sec/g. calculated parameters, λ θ, Ohya-Sourirajan analysis showed some scatter 1.51 for λθ 0.008 θ 28°C. also mass transfer κ, upon Qf, Cf lower rates. contrast, solute parameter, (DAM/k′sδ), constant. With respect complete mixing model, data validate linear relationships between (P/Qf) well (1/R′) (1/Qp). However, not all could be method. solution-diffusion imperfection (SDI) K3 3 orders magnitude than K1, due pore being only 10%.