Preparation and environmental impact assessment of NI-N modified sludge activated carbon electrode materials

Tengfei Gao. Zhijun Ren.

DOI: https://doi.org/10.70114/acmsr.2024.1.1.P197

Keywords:

Activated Sludge; Electrode Materials; Full Life Cycle Assessment

Abstract:

With the activated sludge in urban sewage treatment as the precursor material, the carbon material is prepared by high temperature carbonization, and then the nickel-nitrogen modified activated carbon material is prepared by potassium hydroxide activation, urea and nickel doping. Electrochemical experiments with activated carbon materials show that it has a good specific capacitance of 345.9 F/g at 1 A/g current density. After 2 000 cycles at a current density of 10 A/g, it still maintains 84.53% capacitance, shows found that the main source of influence is the power consumption in the process of sludge carbonization.