alexa Advanced bamboo industry wastewater treatment through nanofiltration membrane technology
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Donglei Wu, Wei Wang, Shaojun Chen, Qaisar Mahmood

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The present study reports the results of nanofiltration (NF) for treating COD, ammonium, color, and conductivity of bamboo industry wastewater (BIWW). The influence of operational parameters such as trans-membrane pressure (TMP), influent concentration, pH, permeate flux and operating temperature on the membrane rejection efficiencies were investigated. Molecular weight distribution (MWD) and gas chromatography-mass spectrometer (GC-MS) analyses were also performed in the study. Results demonstrated that the color obtained during rejection was higher than 99% regardless of any operating parameter. However, permeate flux, COD, ammonium, and conductivity rejections were affected by operational parameters' discrepancies. The operational changes along with the polarization concentration and accumulative mass had mainly influenced the effluent water quality. The permeate flux was recorded higher than 40L/m(2) h, while the TMP was around 7 bar. Moreover, during the experiment, 90, 84, and 83% rejection of COD, ammonium, and conductivity, respectively, were observed. MWD data indicated that the NF module effectively removed most of the macromolecular organics and GC-MS analysis revealed the majority of organic compounds in BIWW were rejected by NF membrane.

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This article was published in  Desalination and water treatment and referenced in International Journal of Waste Resources

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