Low-cost composite autosampler for wastewater sampling

IF 2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

HardwareX Pub Date : 2025-03-01 DOI:10.1016/j.ohx.2025.e00631

Hadi A. Al-agele , Bao D. Nguyen , Liam P. Zimmermann , Gurpreet Singh , Cara Walter , Chet Udell , John S. Selker

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引用次数: 0

Abstract

Wastewater monitoring is a proven method for detecting viruses, illicit drug consumption, pharmaceutical use/abuse, water pollution, and the occurrence of antimicrobial resistance genes. Analyzing sewage water for pathogens like the SARS-Cov-2 virus could enable early detection of infected areas or virus variants. We developed a low-cost (∼US$1000), open-source, composite automatic water sampler with operational flexibility and simple data logging. Sample quantity is measured and cut off appropriately by continuously weighing the incoming liquid. Our system is customizable in both its hardware and firmware (via options and code modification) which allows for the device to be tailored easily to each application. For example, the user can input sampling quantities from 10 g per sample every 1.5 min to a single 2900 g sample after up to a 16-day delay prior to sampling. The outer diameter and height of the sampler are less than 0.5 m to fit in human-entry openings. We present experimental data for sample sizes of 10 g and 100 g at suction heights between 0.65 and 4.75 m.

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用于废水采样的低成本复合自动进样器

废水监测是检测病毒、非法药物消费、药物使用/滥用、水污染和抗微生物药物耐药性基因发生的一种行之有效的方法。分析污水中的病原体，如SARS-Cov-2病毒，可以早期发现感染区域或病毒变体。我们开发了一种低成本（约1000美元）的开源复合自动水采样器，具有操作灵活性和简单的数据记录。通过连续称量进入的液体来测量样品数量并适当切断。我们的系统在硬件和固件上都是可定制的（通过选项和代码修改），这使得设备可以很容易地针对每个应用进行定制。例如，用户可以在采样前最多16天延迟后输入采样量，从每个样品每1.5分钟10克到单个2900克样品。采样器的外径和高度小于0.5米，以适应人类入口的开口。我们给出了吸力高度在0.65和4.75 m之间的10 g和100 g样品尺寸的实验数据。

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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来源期刊

HardwareX Engineering-Industrial and Manufacturing Engineering

CiteScore

4.10

自引率

18.20%

发文量

124

审稿时长

24 weeks

期刊介绍： HardwareX is an open access journal established to promote free and open source designing, building and customizing of scientific infrastructure (hardware). HardwareX aims to recognize researchers for the time and effort in developing scientific infrastructure while providing end-users with sufficient information to replicate and validate the advances presented. HardwareX is open to input from all scientific, technological and medical disciplines. Scientific infrastructure will be interpreted in the broadest sense. Including hardware modifications to existing infrastructure, sensors and tools that perform measurements and other functions outside of the traditional lab setting (such as wearables, air/water quality sensors, and low cost alternatives to existing tools), and the creation of wholly new tools for either standard or novel laboratory tasks. Authors are encouraged to submit hardware developments that address all aspects of science, not only the final measurement, for example, enhancements in sample preparation and handling, user safety, and quality control. The use of distributed digital manufacturing strategies (e.g. 3-D printing) is encouraged. All designs must be submitted under an open hardware license.