Effect of pH and complementary ion concentration on nitrate removal using puroliteA400 Resin impregnated Cu in batch system

TALENTA - Conference on Engineering, Science and Technology 2017

工业技术;自然科学

Turmuzi, M.^1 ; Tarigan, Z.N.^2 ; Nadapdap, L.^2 ; Batubara, F.^1

Department of Chemical Engineering, Universitas Sumatera Utara, Jalan Alumni 3 Kampus USU, Medan

20155, Indonesia^1

Department of Environmental Engineering, Universitas Sumatera Utara, Jalan Almamater Kampus USU, Medan

20155, Indonesia^2

关键词: Adsorption kinetics;    Adsorption process;    Freundlich adsorption isotherms;    Ion concentrations;    Nitrate concentration;    Quality standard;    Total nitrogen content;    World Health Organization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/309/1/012106/pdf
DOI  :  10.1088/1757-899X/309/1/012106

来源: IOP

【 摘 要 】

The total nitrogen content in water bodies should be below 50 mg NO3-/L (11.3 mgN/l) World Health Organization (WHO) 2006. The content of nitrogen exceeding the quality standard threshold will cause damage to the aquatic ecosystem and be carcinogenic to humans. The Purolite A-400 resin will be modified with Cu metal by batch method to see the adsorption allowance of nitrate in synthetic liquid waste with nitrate concentration of 50 mg/l. This study will evaluate the effect of pH and complementary ions on the adsorption process. From the result of the research, the second order pseudo model is the most suitable adsorption kinetics model. For the adsorption isotherms the most suitable model is the Freundlich adsorption isotherm model. The optimum pH conditions were at the range of 8.5. The addition of complementary ions sulfate and phosphate did not show any significant change, but sulfate is the most effective complementary ion with a content of 20 mg/l.