KMnO modified biochar derived from swine manure for tetracycline removal
Water Practice and Technology, ISSN: 1751-231X, Vol: 17, Issue: 11, Page: 2422-2434
2022
- 5Citations
- 17Captures
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Article Description
Tetracycline (TC) is widely used in the livestock industry, but undigested TC is excreted with livestock waste and accumulates in the environment. In this study, swine manure-derived biochar (SBC) was modified with KMnO (MnOx-SBC), and used to remove TC. SEM-EDS, FTIR, XPS and elemental analysis all indicated that ultrafine MnOx particles were attached to the biochar surface. The surface properties and composition of the oxygen-containing functional groups were enhanced by KMnO modification. Batch sorption experiments showed that MnOx-SBC’s TC-adsorption capacity was 105.9 mg·g, 46.4% higher than SBC’s. The TC-adsorption onto MnOx-SBC agreed well with the pseudo-second-order model and Freundlich isotherm. A new platform is proposed for reusing swine manure while solving the livestock industry’s antibiotic pollution risk by ‘treating waste with waste’.
Bibliographic Details
IWA Publishing
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