Study on Retrofitting of Small-scale Water Supply Facility using aeration and Closed-circuit Reverse Osmosis
نویسندگان
چکیده
Objectives : A water treatment system, combining aeration and reverse osmosis (RO) processes, was introduced to improve supply facilities in a small village where additional required due high concentrations of natural radioactive substances, nitrate nitrogen, fluoride. In this study, CCRO(Closed-circuit osmosis) first for commercial use Korea. With we evaluated its efficiency effectiveness blending the aerated RO permeate improved waterworks rural areas.Methods The removal rate major pollutants other ionic substances by analyzing quality raw unit processes. addition, operational small-scale facility verified optimized evaluating change characteristics depending on ratio treated waters CCRO processes.Results Discussion Up 86% radon contained removed process within 2 hours, 98.9% uranium, 85.5% 82.8% fluoride were process. case more than 80% average higher up 75% resulted better final water. However, since requiring flux pressure (at 1.8 m<sup>3</sup>/hr 7.6 bar, respectively), operation relatively specific power consumption at 0.27 kWh/m<sup>3</sup>.Conclusion found that contaminants (natural fluoride) effectively system wherein processes combined. particular, it confirmed time Korea stable satisfactory purposes. It could produce high-quality tap through CCRO, expecting meeting drinking-water standards would be attainable even when contains high-concentration pollutants.
منابع مشابه
Performance Study of Reverse Osmosis Plants for Water Desalination in Bandar-Lengeh, Iran
Introduction: Reverse osmosis (RO) is best known for its use in desalination (removing the salt from seawater to get fresh water), but since the early 1970s it has also been used to purify fresh water for medical, industrial, and domestic applications. The aim of this research was the performance study of reverse osmosis plants for water desalination in Bandar-Lengeh, Iran. Materials and Meth...
متن کاملA Novel Photovoltaic Powered Reverse Osmosis with Improved Productivity of Reverse Osmosis and Photovoltaic Panel
With the increasing installed capacity of desalination, the greenhouse gas emission for generating the required energy to power the desalination plants is also becoming the focus of attention in the world community. Domestic reverse osmosis membranes have been very successful technology especially in the developing world to provide safe drinking water. The novel concept of photovoltaic powered ...
متن کاملEffects of Raw Water Quality on the Efficiency of Domestic Reverse Osmosis Apparatus in Khuzestan Province
The aim of this study was the effect of raw water quality on the efficiency of domestic reverse osmosis apparatus in Khuzestan province. The results showed that the purified water quality was related to the quality of entrance raw water. With increasing in salt concentrations (EC) or TDS, purification efficiency was decreased. The cation and anions content of refinery water was related to TDS a...
متن کاملEffect of Organoclay on the Performance of Reverse Osmosis Membrane
This study investigated the effect of Cloisite15A (C15A) organoclay in the substrate layer on the performance of reverse osmosis (RO) membranes. The substrate of the RO membranes was modified using different loading of C15A (ranging from 0.3 - 0.7 wt%) within polysulfone (PSf) substrate and the polyamide (PA) selective layer was formed on the top. Effect of the modified substrate layer on the w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Korean Society of Environmental Engineers
سال: 2022
ISSN: ['1225-5025', '2383-7810']
DOI: https://doi.org/10.4491/ksee.2022.44.11.436