AU - Hosseinzadeh, Majid AU - Nabi Bidhendi, Gholamreza AU - Torabian, Ali AU - Mehrdadi, Naser TI - A Study on Membrane Bioreactor for Water Reuse from the Effluent of Industrial Town Wastewater Treatment Plant PT - JOURNAL ARTICLE TA - IJT JN - IJT VO - 8 VI - 24 IP - 24 4099 - http://ijt.arakmu.ac.ir/article-1-304-en.html 4100 - http://ijt.arakmu.ac.ir/article-1-304-en.pdf SO - IJT 24 AB  - Background: Considering the toxic effects of heavy metals and microbial pathogens in industrial wastewaters, it is necessary to treat metal and microbial contaminated wastewater prior to disposal in the environment. The purpose of this study is to assess the removal of heavy metals pollution and microbial contamination from a mixture of municipal and industrial wastewater using membrane bioreactor. Methods:A pilot study with a continuous stream was conducted using a 32-L-activated sludge with a flat sheet membrane. Actual wastewater from industrial wastewater treatment plant was used in this study. Membrane bioreactor was operated with a constant flow rate of 4 L/hr and chemical oxygen demand, suspended solids concentration, six heavy metals concentration, and total coliform amounts were recorded during the operation. Results: High COD, suspended solids, heavy metals, and microbial contamination removal was measured during the experiment. The average removal percentages obtained by the MBR system were 81% for Al, 53% for Fe, 94% for Pb, 91% for Cu, 59% for Ni, and 49% for Cr which indicated the presence of Cu, Ni, and Cr in both soluble and particle forms in mixed liquor while Al, Fe, and Pb were mainly in particulate form. Also, coliforms in the majority of the samples were CP - IRAN IN - LG - eng PB - IJT PG - 983 PT - Research YR - 2014