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Mechanism of Nitrogen Removal from Aqueous Solutions Using Natural Scoria
The efficiencies and mechanisms of nitrogen removal from groundwater by scoria were studied. When NH4+-N concentration was 0.5–10 mg/L, the removal was 96–89%. When NO2−-N concentration was 0.1–5 mg/L, the removal was 93–85%. When NO3−-N concentration was 30–150 mg/L, the removal was 85–70%. Additionally, van der Waals forces had a positive impact on the adsorption, which promoted NH4+-N adsorption. Ion exchange and dissolution did not exist. Functional groups of N-H, C-H, and C-N changed after adsorption. Overall, this study indicates that scoria is an ecologically friendly and safe material that can be utilized for groundwater purification to treat nitrogen-contaminated water.
Mechanism of Nitrogen Removal from Aqueous Solutions Using Natural Scoria
The efficiencies and mechanisms of nitrogen removal from groundwater by scoria were studied. When NH4+-N concentration was 0.5–10 mg/L, the removal was 96–89%. When NO2−-N concentration was 0.1–5 mg/L, the removal was 93–85%. When NO3−-N concentration was 30–150 mg/L, the removal was 85–70%. Additionally, van der Waals forces had a positive impact on the adsorption, which promoted NH4+-N adsorption. Ion exchange and dissolution did not exist. Functional groups of N-H, C-H, and C-N changed after adsorption. Overall, this study indicates that scoria is an ecologically friendly and safe material that can be utilized for groundwater purification to treat nitrogen-contaminated water.
Mechanism of Nitrogen Removal from Aqueous Solutions Using Natural Scoria
Tianzi Dong (author) / Yuling Zhang (author) / Xiaosi Su (author) / Zhiyu Chen (author) / Chaoqun Si (author)
2017
Article (Journal)
Electronic Resource
Unknown
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