Questionnaire Survey on Installation of Online Water Quality Monitors and Data Utilization for Water Supply Systems in Japan

Q3 Environmental Science

Journal of Water and Environment Technology Pub Date : 2022-01-01 DOI:10.2965/jwet.21-085

D. Simazaki, T. Marubayashi, Takahiro Yokoi, Akie Watanabe, Shigeyuki Nomoto, M. Ichikawa, Masahiko Kiyozuka

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引用次数: 0

Abstract

In recent years, Japanese water utilities are facing pressing problems like staff shortage and climate-induced water quality deterioration. Utilization of online water quality monitoring data have received increasing attention to address these problems. A questionnaire survey was carried out for 32 water utilities to comprehend current situation of online water quality monitors (OWQMs), including installation of OWQMs and critical obstacles, water quality items monitored, utilization of water quality dataset, and future challenges. Turbidity, pH, and chlorine were mostly monitored using OWQMs from source to tap, for determining operating conditions of water purification process. Turbidity, pH, toxic substance, musty-odor substance, and residual chlorine were regarded as highly significant for both operational management and risk management. Initial/operational costs, measurement accuracy, and maintenance work volume were typical obstacles of OWQM installation. Nineteen out of the 32 water utilities have utilized water quality dataset obtained by OWQMs for predicting residual chlo-rine/bromate concentration, and for determining injection ratio of chemical coagulant and powdered activate carbon. Further OWQM installation and data utilization would be the key to strengthen the basis of water supply systems in Japan.

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日本供水系统在线水质监测仪安装及数据利用的问卷调查

近年来，日本水务公司面临着人员短缺和气候导致的水质恶化等紧迫问题。利用在线水质监测数据来解决这些问题已受到越来越多的关注。通过对32家自来水公司进行问卷调查，了解在线水质监测仪(OWQMs)的现状，包括OWQMs的安装和关键障碍、监测的水质项目、水质数据集的利用以及未来的挑战。浊度、pH值和氯的监测主要采用OWQMs从源头到水龙头，以确定水净化过程的操作条件。浊度、pH值、有毒物质、霉味物质和余氯对操作管理和风险管理都具有重要意义。初始/操作成本、测量精度和维护工作量是OWQM安装的典型障碍。32家自来水公司中有19家利用OWQMs获得的水质数据集来预测剩余氯/溴酸盐浓度，并确定化学混凝剂和粉末活性炭的注射比例。进一步安装OWQM和利用数据将是加强日本供水系统基础的关键。

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

Journal of Water and Environment Technology Environmental Science-Water Science and Technology

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

43 weeks

期刊介绍： The Journal of Water and Environment Technology is an Open Access, fully peer-reviewed international journal for all aspects of the science, technology and management of water and the environment. The journal’s articles are clearly placed in a broader context to be relevant and interesting to our global audience of researchers, engineers, water technologists, and policy makers. JWET is the official journal of the Japan Society on Water Environment (JSWE) published in English, and welcomes submissions that take basic, applied or modeling approaches to the interesting issues facing the field. Topics can include, but are not limited to: water environment, soil and groundwater, drinking water, biological treatment, physicochemical treatment, sludge and solid waste, toxicity, public health and risk assessment, test and analytical methods, environmental education and other issues. JWET also welcomes seminal studies that help lay the foundations for future research in the field. JWET is committed to an ethical, fair and rapid peer-review process. It is published six times per year. It has two article types: Original Articles and Review Articles.