吸附与催化氧化联合作用在地下水处理废水中去除铝染料的研究

IF 1 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Engineering and Landscape Management Pub Date : 2022-01-27 DOI:10.3846/jeelm.2022.16286

Edita Sodaitienė, D. Kaušpėdienė, A. Gefenienė, R. Ragauskas, R. Ramanauskas

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引用次数: 0

摘要

研究了地下水处理废水（GWTW）作为吸附剂和催化剂对铝染料Sanodure绿色LWN（SG）溶液脱色的性能。原料GWTW比在800°C温度下煅烧更适合去除染料。GWTW在阳光下类Fenton反应中的催化活性随着pH从5.5降低到2.5和温度从20升高到60°C而增加。100 mg/L SG染料溶液在50°C和pH值为3的条件下，前5分钟脱色率达到70%，50分钟后脱色率达到92%。SG染料脱色动力学符合双指数和两阶段拟一阶动力学模型。SG染料降解反应第一阶段的活化能为30.45kJ/mol。GWTW可以在进入废水处理厂之前重新用于染料污染废水的预处理。

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COMBINED ACTION OF ADSORPTION AND CATALYTIC OXIDATION IN ALUMINUM DYE REMOVAL BY GROUNDWATER TREATMENT WASTE

The performance of groundwater treatment waste (GWTW) as an adsorbent and catalyst in the decoloration of aluminum dye Sanodure green LWN (SG) solution was investigated. The raw GWTW was more suitable for dye removal than calcined at 800 °C temperature. The catalytic activity of GWTW in Fenton-like reactions in sunlight increases with decreasing pH from 5.5 to 2.5 and increasing temperature from 20 to 60 °C. The rate of 70% decoloration in the first 5 min and 92% after 50 min of 100 mg/L SG dye solution was reached at 50 °C and pH 3. Kinetics of the SG dye color removal fitted well with the double exponential and two-stage pseudo-first-order kinetic models. The activation energy of the first stage of the SG dye degradation reaction is 30.45 kJ/mol. GWTW could be re-used for the pre-treatment of dye-contaminated wastewater before entering the wastewater treatment plant.

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来源期刊

Journal of Environmental Engineering and Landscape Management 环境科学-环境科学

CiteScore

1.90

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Environmental Engineering and Landscape Management publishes original research about the environment with emphasis on sustainability.