Work

Adsorption properties of biomass power plant ash for Cd2+ in water

Year: 2025

Type: article

Abstract: Cadmium pollution in industrial wastewater is one of the important environmental issues caused by industrial activities. After cadmium enters the water, it affects the aquatic ecosystem and further poses a threat to human health. Biomass fuel is a clean energy source, and the biomass power plant ash has the potential to be used as an adsorbent. This study uses biomass power plant ash as an adsorbent to investigate its adsorption kinetics and thermodynamic characteristics for Cd 2+ in wastewater and explore the influencing factors. The research results show that at pH=9 and an adsorption time of 90 minutes, the adsorption capacity of biomass power plant ash for Cd 2+ reaches its maximum. The pseudo-second-order kinetic model better fits this adsorption process, and the adsorption isotherm conformed to the Langmuir adsorption model, with a theoretical maximum adsorption capacity of 95.8773 mg·L -1 . Biomass power plant ash has good adsorption performance for Cd 2+ .

Source: Desalination and Water Treatment

DOI: 10.1016/j.dwt.2025.101303

Authors: Binbin Zhang, Sijia Li, Jian Huang, Hua Zhang, Yong Zhang, Tao Luo

Institution: Anhui Jianzhu University

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production, Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,000