Removal of Chlorine Ions from Desulfurization Wastewater by Modified Fly Ash Hydrotalcite | Zendy

Liqiang Qi | Zendy; Kunyang Liu | Zendy; Ruitao Wang | Zendy; Jingxin Li | Zendy; Yajuan Zhang | Zendy; Lan Chen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Removal of Chlorine Ions from Desulfurization Wastewater by Modified Fly Ash Hydrotalcite

Author(s) -

Liqiang Qi,

Kunyang Liu,

Ruitao Wang,

Jingxin Li,

Yajuan Zhang,

Lan Chen

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c04074

Subject(s) - adsorption , hydrotalcite , flue gas desulfurization , chemistry , fly ash , wastewater , nuclear chemistry , chlorine , scanning electron microscope , langmuir adsorption model , freundlich equation , langmuir , inorganic chemistry , materials science , waste management , organic chemistry , catalysis , composite material , engineering

The effective removal of chlorine ion from the desulfurization slurry is of great significance to the stable operation of the desulfurization system. Modified fly ash hydrotalcites were prepared by alkali/acid-combined roasting and microwaving and used as an adsorbent for chlorine ion in desulfurized wastewater. The specific surface area and porosity of different adsorbents were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The impacts of pH, temperature, adsorbent dosage, and adsorption shaking time on adsorption performance were investigated. Results showed the alkali-combined roasting-modified fly ash hydrotalcite has the optimum removal effect on Cl - . The optimal adsorption performance was achieved when the pH was 8, the adsorption temperature was 60 °C, the mass concentration of adsorbent was 10 g/L, the adsorption shaking time was 180 min, and the removal percentage of Cl - was 68.1%. The adsorption isotherm was consistent with the Langmuir isotherm model, and the adsorption saturation was 694.4 mg/g, which belonged to monolayer adsorption.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research