2026-06-08T02:39:08Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/74842024-10-02T13:15:39Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Sanz-Santos, Eva
author
Álvarez Torrellas, Silvia
author
Ceballos, Lucía
author
Larriba Martínez, Marcos
author
Águeda Maté, Vicente Ismael
author
García Rodríguez, Juan
2023-06-17T08:34:51Z
2023-06-17T08:34:51Z
2021
2076-3417
10.3390/app11073087
https://hdl.handle.net/20.500.14352/7484
https://doi.org/10.3390/app11073087
The amount of sludge produced in wastewater treatment plants (WWTPs) has increased over the years, and the methods used to reduce this waste, such as incineration, agricultural use, or disposal in landfills, cause problems of secondary pollution. For this reason, it is necessary to find sustainable and low-cost solutions to manage this waste. Additionally, emerging and priority pollutants are attracting attention from the scientific community as they can generate health problems due to inadequate removal in conventional WWTPs. In this work, a pharmaceutical industry sludge was used as a precursor in the synthesis of four activated carbons (ACs) using different activating agents (ZnCl2, FeCl3∙6H2O, Fe(NO3)3∙9H2O, and Fe(SO4)3∙H2O), to be used for the removal by adsorption of three neonicotinoid pesticides included in latest EU Watch List (Decision 2018/840): acetamiprid (ACT), thiamethoxam (THM), and imidacloprid (IMD). The prepared ACs showed micro–mesoporous properties, obtaining relatively slow adsorption kinetics to reach equilibrium, but despite this, high values of adsorption capacity (qe) were obtained. For example, for AC-ZnCl2 (SBET = 558 m2/g), high adsorption capacities of qe = 128.9, 126.8, and 166.1 mg/g for ACT, THM, and IMD, respectively, were found. In most cases, the adsorption isotherms showed a multilayer profile, indicating an important contribution of the mesoporosity of the activated carbons in the adsorption process.
eng
Atribución 3.0 España
Application of Sludge-Based Activated Carbons for the Effective Adsorption of Neonicotinoid Pesticides
journal article
URL
https://docta.ucm.es/bitstreams/f5ed7023-0a51-4fa2-8b8d-507a25bb3bcf/download
File
MD5
9d0d298f4b0020b3f2573e5cad905a8b
1252348
application/pdf
applsci-11-03087-v3.pdf