Quality Analysis of Environmental Water

Introduction

In the environmental sector, regulations are in place and monitoring is performed on the quantities of specific substances present in industrial wastewater and river water. An increase in the concentration of phosphorus and nitrogen in river water can cause abnormal growth of algae and phytoplankton. Japan uses river water among other sources for its tap water, which is treated to make it potable. There are 51 "water quality criteria" and 26 "water control targets" prescribed for tap water in Japan. These criteria and targets include prescriptions for parameters such as residual chlorine and hardness, which are items of relatively common concern. We developed a water analysis program designed for use with the UV-1280 UV-VIS spectrophotometer, which provides easy analysis of 22 substances and 39 items (including phosphoric acid and residual chlorine) by mainly using the "PACKTEST" water quality testing kits from Kyoritsu Chemical-Check Lab., Corp. We describe using this UV-1280 water analysis program to analyze day-to-day changes in phosphate- phosphorus levels in river water and residual chlorine, iron, and total hardness levels in tap water.

June 28, 2016 GMT