PFAS treatment with granular activated carbon and ion exchange resin: Comparing chain length, empty bed contact time, and cost

The waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of desorption temperature and sweep gas flow on CO2 desorption performances of WIRAC were researched. In the adsorption process, with the increase of adsorption temperature, the CO2 adsorption capacity and adsorption rate decrease; as the gas flow increases, the CO2 adsorption capacity decreases, but the adsorption rate increases; with the increase of CO2 concentration and adsorbent filling content, the CO2 adsorption capacity and adsorption rate both increase. In the desorption process, the higher the desorption temperature and the smaller the sweep gas flow, the higher the CO2 purity of product gas and the longer the desorption time. In order to make sure the adsorbent be used efficiently and the higher CO2 concentration of product gas, the adsorption and desorption conditions selected should be a suitable choice.

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Improved performance of stacked microbial desalination cell as oil waste model treatment by adding ion exchange resin and activated carbon

10.1063/5.0064869 ◽

2021 ◽

Author(s):

Hasna Aprilia ◽

Jelita Ninda Qorina ◽

Rita Arbianti ◽

Tania Surya Utami

Keyword(s):

Activated Carbon ◽

Ion Exchange ◽

Exchange Resin ◽

Ion Exchange Resin ◽

Model Treatment ◽

Microbial Desalination Cell ◽

Improved Performance

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Importance of the order in enhancing EfOM removal by combination of BAC and MIEX®

Water Science & Technology ◽

10.2166/wst.2011.817 ◽

2011 ◽

Vol 64 (11) ◽

pp. 2325-2332 ◽

Cited By ~ 7

Author(s):

A. Aryal ◽

A. Sathasivan

Keyword(s):

Organic Matter ◽

Activated Carbon ◽

Organic Carbon ◽

Ion Exchange ◽

Exchange Resin ◽

Wastewater Reuse ◽

Ion Exchange Resin ◽

Wastewater Effluent ◽

Biological Activated Carbon ◽

Magnetic Ion

Biological activated carbon (BAC) is operationally a simple treatment which can be employed to remove effluent organic matter (EfOM) from secondary wastewater effluent (SWWE). Unfortunately, BAC removes only a limited amount of dissolved organic carbon (DOC). Thus, maximizing DOC removal from SWWE using BAC is a major concern in wastewater reuse. This study has investigated a hybrid system of BAC and Magnetic Ion Exchange Resin (MIEX®) for the enhanced removal of DOC. Performance of both BAC prior to MIEX® (BAC/MIEX®) and reverse (MIEX®/BAC) combination was evaluated in terms of DOC removal. The BAC/MIEX® showed much better DOC removal. This is because microbial activity in the BAC bed converted MIEX® non-amenable DOC to MIEX® amenable DOC. As a result, BAC/MIEX® combination synergised DOC removal. In addition, BAC was also found to be highly effective in reducing MIEX® dose for a given DOC removal from SWWE.

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