Topic
Reverse osmosis
About: Reverse osmosis is a research topic. Over the lifetime, 20780 publications have been published within this topic receiving 299185 citations. The topic is also known as: RO.
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TL;DR: In this article, the authors used a membrane bioreactor in wastewater treatment to remove arsenic from the treated water and showed that the membrane in hybrid systems allows a better phase separation between the particles binding the arsenic and treated water.
Abstract: Arsenic contamination as a consequence of human activities such as mining and pesticide use is affecting the water resource quality worldwide. Because of the high risk of arsenic exposure, specific water treatment processes are required to meet the anticipated more severe water quality standards. Better understanding of presently available processes is necessary to develop economic, efficient and effective methods for arsenic removal. Arsenic could either be coagulated, adsorbed using a wide range of materials both mineral and organic or could be directly rejected by membrane processes such as reverse osmosis and nanofiltration. The recent development of submerged hybrid membrane systems, such as membrane bioreactor in wastewater treatment, offers alternative technologies for arsenic treatment. The membrane in hybrid systems allows a better phase separation between the particles binding the arsenic and the treated water. The effect of pH and contact time, and the existence of other ionic compounds must be taken into account when designing the system for optimum arsenic rejection. Further research on both hydraulic and removal performances of hybrid adsorption/membrane technology is still required to assess the full potential of this technology for arsenic removal.
118 citations
TL;DR: In this paper, the performance of microfiltration, ultra-filtration (UF), nanofiltration (NF), and reverse osmosis (RO) was evaluated in a paper mill in Italy.
118 citations
TL;DR: In this paper a process for the treatment of landfill leachate involving evaporation and reverse osmosis was proposed and comparable reductions of over 97% were registered for both types of membrane in the optimal conditions of pH = 6.4.
118 citations
TL;DR: In this paper, a basic SGP-RED process model has been published and two distinct dilute and concentrate compartment thicknesses and implemented in a solver to investigate the effect of specific parameters.
118 citations
TL;DR: A comparative analysis of wastewater (WW) and seawater (SW) fouled reverse osmosis (RO) membranes was conducted and confirmed that the RO fouling layer composition is strongly impacted by the source water quality.
118 citations