Using activated and Nano Silica as Adsorbent Materials for Filtration of Industrial Wastewater

Sorour, Manal; Helmy, Marwa; EL Mahrouky, Amira S; Ahmed, Ibtesam I

doi:10.21608/ftrj.2023.329291

Using activated and Nano Silica as Adsorbent Materials for Filtration of Industrial Wastewater

Document Type : Original Article

Authors

¹ Food Engineering and Packaging Department, Food Technology Research Institute, ARC

² Food Engineering and Packaging Dept., Food Technology Research Institute, Agricultural Research Center, Giza, Egypt

³ Food Engineering and Packaging Dept., Food Technology Research Institute, ARC, Egypt

⁴ Food packaging and engineering department, Food Technology Research Institute, ARC

10.21608/ftrj.2023.329291

Abstract

Activated nanosilica was used as an adsorbent and filter media for wastewater treatment in the dairy industry. Wastewater was analyzed for different physicochemical parameters (BOD, COD, Na, Ca, K, P, total nitrogen, and chloride) of dairy industry wastewater before and after treatment. According to the findings, the removal percentages of BOD, COD, Na, Ca, K, P, total nitrogen, and chloride were as follows: 82.612, 84.905, 90.225, 96.25, 66.12, 90.272, 90.78, and 87.013% for activated silica and 90.094, 86.77, 93.33, 66.12, 89.849, 90.66, 90.78, and 87.013% for nano silica, respectively.. Also, activated and nanosilica reduced turbidity with removal percents of 94.07 and 97.525%, respectively. Dissolved oxygen increased after treatment with activated silica and nanosilica, and activated silica increased pH to 9.2, while nanosilica decreased pH to 3.6.

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