Open AccessA Case Study: Water Quality Content between Water Supply and Water Vending Machine at Parit Raja, Johor
Author(s) -
Suhaila Sahat,
Nadia Kariya,
Masiri Kaamin,
Norbaizura Hamid,
Nor Farah Atiqah Ahmad
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/601/1/012009
Subject(s) - reverse osmosis , water quality , ammoniacal nitrogen , water supply , environmental science , environmental engineering , pulp and paper industry , chemistry , engineering , wastewater , membrane , ecology , biochemistry , biology
Water quality study was conducted on water vendor machines with different types of systems that are available around Parit Raja, Batu Pahat such as reverse osmosis systems, systems nanotechnology nano-silver system and water supply pipes. The aim of this study is to distinguish the water quality from the vending machine that follow the standard quality whether authorized or not. Standard water quality parameters such pH, iron concentration experiments, experimental manganese, aluminum and experimental testing ammoniacal nitrogen were computed as comparison. Nanotechnology system water produces better quality when comparing to the pipe water as its pH value shows 6.62. From the experiments the concentration of iron, manganese, aluminium and ammoniacal nitrogen shows 0.08-, 0.07-, 0.05-, and 0.01 mg/L respectively which all the values are in compliance with the National Drinking Water Quality Standards (NDWQS). As for water from reverse osmosis system and pipe water supply both its pH is 6.2 and 6.4 correspondingly which both are not concurrence with National Drinking Water Quality Standards. However, iron content for water from reverse osmosis (0.30 mg/L) is higher than water supply pipe (0.12 mg/L) and both are in the standard range. Iron content of the water supply pipe which is not allowed by 0.14 mg/L. Compared with water from a reverse osmosis system in which the iron content is at a maximum of 0.10mg / L. The parameters of aluminium and ammoniacal nitrogen, the two systems are at acceptable levels. For water from nano-silver system, all parameters are in compliance with the National Drinking Water Quality Standards.