ABSTRACT

Turbidity is one of the key water quality parameters in environmental monitoring, water treatment or industrial process operation. Turbidity is however very challenging to measure reliably due to the many factors affecting the reading and functionality of the measurement device. In this paper, the results of the experiments to study the effects of changes in water quality and environmental condition to the readings of turbidity measurement devices are presented. The experiments were carried out in stable laboratory conditions where controlled changes were made to water pH, the temperature, salinity, colour, environment brightness and the mixing speed of the water. The study showed that even though the actual turbidity of the water remained constant the changes in other variables caused in the worst-case significant disturbances to the turbidity measurements. This knowledge is vital, for instance in monitoring or developing a robust model for forecasting regional turbidity in natural waters.

摘要

浊度是环境监测、水处理或工业过程操作中的关键水质参数之一。然而，由于影响测量设备读数和功能的许多因素，浊度的可靠测量非常具有挑战性。本文介绍了研究水质和环境条件变化对浊度测量装置读数影响的实验结果。实验是在稳定的实验室条件下进行的，对水的 pH 值、温度、盐度、颜色、环境亮度和水的混合速度进行了可控的改变。研究表明，即使水的实际浊度保持不变，其他变量的变化在最坏的情况下也会对浊度测量造成显着干扰。这种知识至关重要，例如在监测或开发预测天然水域区域浊度的稳健模型时。