Simultaneous removal of phosphate and nitrate in wastewater using high-capacity anion-exchange resin
- Simultaneous removal of phosphate and nitrate in wastewater using high-capacity anion-exchange resin
- 김연석; 이영행; 안병렬; 최성아; 박종훈; 정종수; 이상협; 최재우
- Anion exchange resin; Nitrate; Phosphate; Wastewater
- Issue Date
- Water, air, and soil pollution
- VOL 223, NO 9, 5959-5966
- The removal of nutrients in wastewater is a critical issue in water treatment
because released nutrients can cause serious adverse effects in water systems or the aquatic
environment. In this study, a high-performing polymeric anion exchange resin was developed for removal of nutrients from wastewater. The resins were prepared by chloromethylation followed by amination under preferred conditions. The resins were investigated for the removal of nutrients such as phosphate, nitrate, and fluoride from water. The density of functional groups on the synthesized resin was approximately 33 % higher than on commercialized resins, and the specific surface area of synthesized resin was increased by approximately 10-fold compared with commercialized resins. The adsorption capacity of synthesized resins (AMP16-FeCl3) for anions was 285.8 mg/g, which was approximately three times higher than the capacity of commercialized resin (AMP16-OH). A study of the effects of the types of counter ions and functional groups found that resins having hydroxide ion as a counter ion showed higher capacity
and selectivity for phosphate ion and that dimethylethanolamine as a resin functional group of
resin was more efficient than trimethylamine.
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