Fluoride Removal from Brackish Groundwaters by Constant Current Capacitive Deionization (CDI)

2016 ◽  
Vol 50 (19) ◽  
pp. 10570-10579 ◽  
Author(s):  
Wangwang Tang ◽  
Peter Kovalsky ◽  
Baichuan Cao ◽  
Di He ◽  
T. David Waite
Keyword(s):  
Constant Current ◽  
Fluoride Removal ◽  
Capacitive Deionization

Hybrid CV-CC operation of capacitive deionization in comparison with constant current and constant voltage

2016 ◽  
Vol 51 (6) ◽  
pp. 1063-1069 ◽  
Author(s):  
Muhammad Wajid Saleem ◽  
Y. A. C. Jande ◽  
Muhammad Asif ◽  
Woo-Seung Kim
Keyword(s):  
Constant Current ◽  
Capacitive Deionization ◽  
Constant Voltage

scholarly journals Energy consumption analysis of constant voltage and constant current operations in capacitive deionization

Desalination ◽  
2016 ◽  
Vol 400 ◽  
pp. 18-24 ◽  
Author(s):  
Yatian Qu ◽  
Patrick G. Campbell ◽  
Lei Gu ◽  
Jennifer M. Knipe ◽  
Ella Dzenitis ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Constant Current ◽  
Capacitive Deionization ◽  
Constant Voltage ◽  
Energy Consumption Analysis

scholarly journals Design and Implementation of an Electrical Characterization System for Membrane Capacitive Deionization Units for the Water Treatment

Membranes ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 773
Author(s):  
Federico A. Leon ◽  
Alejandro Ramos-Martin ◽  
David Santana
Keyword(s):  
Water Treatment ◽  
Low Cost ◽  
Electrical Characterization ◽  
Development Stage ◽  
Point Of View ◽  
Water Desalination ◽  
Constant Current ◽  
Water Evaporation ◽  
Innovative Technology ◽  
Capacitive Deionization

The desalination of seawater is one of the most established techniques in the world. In the middle of the 20th century this was achieved using water evaporation systems, later with reverse osmosis membranes and nowadays with the possibility of capacitive deionization membranes. Capacitive deionization and membrane capacitive deionization are an emerging technology that make it possible to obtain drinking water with an efficiency of 95%. This technology is in the development stage and consists of porous activated carbon electrodes, which have great potential for saving energy in the water desalination process and can be used for desalination using an innovative technology called capacitive deionization (CDI), or membrane capacitive deionization (MCDI) if an anion and cation membrane exchange is used. In this paper is proposed and designed a characterization system prototype for CDI and MCDI that can operate with constant current charging and discharging (galvanostatic method). Adequate precision has been achieved, as can be seen in the results obtained. These results were obtained from the performance of typical characterization tests with electrochemical double layer capacitors (EDLC), since they are electrochemical devices that behave similarly to MCDI, from the point of view of the electrical variables of the processes that take place in MCDI. A philosophy of using free software with open-source code has been followed, with software such as the Arduino and Processing programming editors (IDE), as well as the Arduino Nano board (ATmega328), the analogical-digital converter (ADC1115) and the digital-analogical converter (MCP4725). Moreover, a low-cost system has been developed. A robust and versatile system has been designed for water treatment, and a flexible system has been obtained for the specifications established, as it is shown in the results section.

Optimization of constant-current operation in membrane capacitive deionization (MCDI) using variable discharging operations

2021 ◽  
pp. 117646
Author(s):  
Zhizhao He ◽  
Shuai Liu ◽  
Boyue Lian ◽  
John Fletcher ◽  
Clare Bales ◽  
...  
Keyword(s):  
Constant Current ◽  
Capacitive Deionization ◽  
Current Operation

Investigation of fluoride removal from low-salinity groundwater by single-pass constant-voltage capacitive deionization

2016 ◽  
Vol 99 ◽  
pp. 112-121 ◽  
Author(s):  
Wangwang Tang ◽  
Peter Kovalsky ◽  
Baichuan Cao ◽  
T. David Waite
Keyword(s):  
Fluoride Removal ◽  
Capacitive Deionization ◽  
Constant Voltage ◽  
Single Pass ◽  
Low Salinity

scholarly journals Quantifying the flow efficiency in constant-current capacitive deionization

2018 ◽  
Vol 129 ◽  
pp. 327-336 ◽  
Author(s):  
Steven A. Hawks ◽  
Jennifer M. Knipe ◽  
Patrick G. Campbell ◽  
Colin K. Loeb ◽  
McKenzie A. Hubert ◽  
...  
Keyword(s):  
Constant Current ◽  
Capacitive Deionization
Sign in / Sign up

Export Citation Format

Share Document