Performance potential of ceramic alpha-alumina membrane during microfiltration process for gray water reuse

The performance of alpha-alumina membrane has evaluated for treatment and reuse of high organic and inorganic gray water. The efficiency of alpha-alumina microfiltration process demonstrates satisfactory rejection and medium permeance for grey water treatment which was worthy for proposes such as: irrigating gardens; toilet flush tanks; car washing. Effect of microfiltration was observed on reduction of chemical oxygen demand (COD); biological oxygen demand (BOD), total suspended solids (TSS); total nitrogen (TN) and total dissolved solids (TDS). Depending on the variation in feed loading; about 50–70% COD reduction was achieved in the single-stage MF at 10 min of filtration with operating pressure of 2bar. Permeate quality in terms of organic loading was coincident to standards level of reusing and exceptional irrigational purposes.

کلیدواژه ها:

Gray water ، alpha alumina membrane ، microfiltration process ، water treatment