Escherichia coli inactivation using a hybrid ultrasonic-electrocoagulation reactor.,Chemosphere

当前位置： X-MOL 学术 › Chemosphere › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Escherichia coli inactivation using a hybrid ultrasonic-electrocoagulation reactor.
Chemosphere ( IF 8.1 ) Pub Date : 2020-01-09 , DOI: 10.1016/j.chemosphere.2020.125868
Khalid S Hashim ₁ , Shaimaa Satae M Ali ₂ , Jawad K AlRifaie ₃ , Patryk Kot ₄ , Andy Shaw ₄ , Rafid Al Khaddar ₄ , Ibijoke Idowu ₄ , Michaela Gkantou ₄

Affiliation

In the current study, a new hybrid ultrasonic-electrocoagulation reactor (U-E reactor) has been used to inactivate Escherichia coli in water. The new hybrid reactor consists of an ultrasonic bath fitted with four perforated aluminium electrodes. These perforated electrodes are designed to act as baffle-plates to enhance the water-mixing process. The electrodes eliminate the need for external mixing devices, which in turn, enhances the cost-effectiveness of the unit. Initially, the ability of the electrocoagulation to inactivate E. coli was optimised for different operating parameters such as electrolysing time (Te), electrodes spacing (ES) and current density (CD). The ultrasonic field was then applied over different time periods (Tu), during the course of the electrolysing process. Statistical analyses have been conducted to assess the relative effect of each operating parameter on the inactivation of E. coli. An economic study has also been conducted to assess the operating costs of the U-E reactor. The results revealed that the new U-E reactor inactivated 100% of the E. coli within 11 min of electrolysis at ES of 5 mm, CD of 1.5 mA/cm2, and an operation cost of 0.212 US $/m3. It was been established that the relative effect of operating parameters on E.coli inactivation followed the order: Te>Tu>CD>ES.

中文翻译：

使用混合超声电凝反应器灭活大肠杆菌。

在当前的研究中，新的混合超声电凝反应器（UE反应器）已用于灭活水中的大肠杆菌。新的混合反应堆由装有四个带孔铝电极的超声波浴组成。这些多孔电极被设计为用作挡板，以增强水混合过程。电极消除了对外部混合设备的需求，从而提高了设备的成本效益。最初，针对不同的操作参数（例如电解时间（Te），电极间距（ES）和电流密度（CD））优化了电凝灭活大肠杆菌的能力。然后在电解过程中，在不同的时间段（Tu）上施加超声场。已经进行了统计分析以评估每个操作参数对大肠杆菌灭活的相对影响。还进行了一项经济研究，以评估UE反应堆的运行成本。结果显示，新的UE反应器在电解11分钟内以5 mm的ES，1.5 mA / cm2的CD灭活了100％的大肠杆菌，运行成本为0.212美元/ m3。已经确定，操作参数对大肠杆菌灭活的相对影响遵循以下顺序：Te> Tu> CD> ES。运行成本为0.212美元/立方米。已经确定，操作参数对大肠杆菌灭活的相对影响遵循以下顺序：Te> Tu> CD> ES。运行成本为0.212美元/立方米。已经确定，操作参数对大肠杆菌灭活的相对影响遵循以下顺序：Te> Tu> CD> ES。

更新日期：2020-01-09

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11