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

Food Technology Research Journal Pub Date : 2023-12-01 DOI:10.21608/ftrj.2023.329291

Manal Sorour, Marwa Helmy, Amira EL Mahrouky, Ibtesam Ahmed

引用次数: 0

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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使用活性和纳米二氧化硅作为过滤工业废水的吸附材料

活性纳米二氧化硅被用作乳制品行业废水处理的吸附剂和过滤介质。废水处理前后的不同理化参数（生化需氧量、化学需氧量、Na、Ca、K、P、总氮和氯化物）对乳业废水进行了分析。结果显示，BOD、COD、Na、Ca、K、P、总氮和氯化物的去除率如下活性二氧化硅的去除率分别为 82.612%、84.905%、90.225%、96.25%、66.12%、90.272%、90.78% 和 87.013%，纳米二氧化硅的去除率分别为 90.094%、86.77%、93.33%、66.12%、89.849%、90.66%、90.78% 和 87.013%。此外，活性二氧化硅和纳米二氧化硅还能降低浊度，去除率分别为 94.07% 和 97.525%。经活性二氧化硅和纳米二氧化硅处理后，溶解氧增加，活性二氧化硅将 pH 值提高到 9.2，而纳米二氧化硅则将 pH 值降低到 3.6。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Food Technology Research Journal

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