Laboratory Scale Water Circuit Including a Photocatalytic Reactor and a Portable In-Stream Sensor To Monitor Pollutant Degradation
Laboratory Scale Water Circuit Including a Photocatalytic Reactor and a Portable In-Stream Sensor To Monitor Pollutant Degradation
复制标题
实验室规模水回路，包括光催化反应器和便携式流内传感器，用于监测污染物降解
DOI：
10.1021/ie202366m
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发表时间：
2012
影响因子：
4.2
通讯作者：
Nickels P
中科院分区：
文献类型：
--
作者：
Nickels P
介绍了一种实验室规模的光催化废水处理闭路循环试验系统。该系统包括一个UV-LED光反应器、一个微循环流体泵和一个流中传感器单元。该反应器可容纳高达250毫升的体积，并被优化为研究使用固定在反应堆容器内的平面上的光催化剂将微克至每升范围内的污染物浓度降解到毫克。使用的测试污染物是甲基橙。流中传感器单元由带有透明窗口的液体流动单元组成，允许光电二极管监测来自LED的光的传输。污染物的浓度是实时评估的。该系统重量轻、价格便宜、便携灵活，非常适合实验室或现场使用，并且可以很容易地扩大规模，用于污水处理厂的在线质量控制监控。
We describe a lab-scale closed-circulating test system for photocatalytic wastewater treatment. The system comprises a UV-LED photoreactor, a microcirculating fluid pump, and an in-stream sensor unit. The reactor can hold volumes up to 250 mL and is optimized to study the degradation of pollutant concentrations in the microgram to milligram per liter range using photocatalysts fixed to a planar surface within the reactor vessel. The test pollutant used was methyl orange. The in-stream sensor unit consists of a liquid flow cell with transparent windows, allowing the transmission of light from an LED to be monitored by a photodiode. The concentration of the pollutant is evaluated in real-time. The system is lightweight, cheap, portable, and flexible, ideal for laboratory or fieldwork use, and could be easily up-scaled and used for in-line quality control monitoring in a wastewater treatment plant.