How feedwater characterization changes effect brackish-water reverse osmosis plant operation: the town of Jupiter, Florida

2021 ◽  
Vol 227 ◽  
pp. 1-15
Author(s):  
Daniel Schroeder ◽  
Ashley Danley-Thomson ◽  
Thomas M. Missimer
Author(s):  
Magdi S. Mahmoud

In this paper, different strategies are investigated for the digital control of a reverse osmosis (RO) plant. Three control strategies to improve the performance of the RO plant are considered. These strategies including state-feeback, observer-based feedback and tracking control are considered. Simulation results show that the tracking controller yields the best perfoamnce, however it requires field knowledge about the RO plant operation. In this regard, observer-based feedback controller provides an alternative compromise.


2017 ◽  
Vol 11 (3) ◽  
Author(s):  
Doglasse Ernesto Mendonça ◽  
Paulo César Marques de Carvalho ◽  
Paulo Peixoto Praça ◽  
José Sigefredo Pinheiro Neto ◽  
Douglas Bressan Riffel

2018 ◽  
Vol 13 (1) ◽  
pp. 106-114 ◽  
Author(s):  
G. Liu ◽  
S. Pattanayak ◽  
P. Navaneethakrishnan ◽  
R. Woodling

Abstract Reverse osmosis (RO) has successfully emerged as a broadly-used commercial water purification technology in recent decades. Nevertheless, RO membrane elements, the core component of this purification process, are frequently subjected to premature degradation and performance deterioration, adversely impacting RO plant operation & maintenance. Membrane autopsy is a well-proven yet under-valued procedure for effectively assessing the condition of membranes and determining the root-cause of performance loss. This paper aims to provide a general methodology utilized commercially to perform membrane autopsy and employ three case studies to explicitly demonstrate the value addition to operators and end-users when applying membrane autopsy in (1) failure analysis and trouble-shooting, (2) operation optimization and routine monitoring, and (3) asset management and maintenance enhancement.


2021 ◽  
Vol 698 (1) ◽  
pp. 012044
Author(s):  
Sutopo Purwono Fitri ◽  
Alam Baheramsyah ◽  
Agoes Santoso ◽  
Yudhi Satrio Santoso

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