Combination of biochar filtration and ozonation processes in livestock wastewater treatment and application for soil cultivation

The potential of lignocellulosic biomass for magnetic solid phase extraction of naproxen from saliva samples

“…Conversely, when the pH is above the p K a and pHpzc, both the magnetic biochar surface and N will carry negative charges, causing them to repel each other. 49 NSAID's p K a value is 4.19, so when the solution pH is less than 4, the analytes, AMBC, PBMC, and WMBC will have a charge opposite to the surface, promoting adsorption. Increasing the pH above 5 will cause both naproxen and magnetic biochars to have the same charge, resulting in electrostatic repulsion and hindering adsorption.…”

Research Advancements in Swine Wastewater Treatment and Resource-Based Safe Utilization Management Technology Model Construction

“…In addition to a single AD, it can also be combined with other methods (especially the various physicochemical methods mentioned above), such as the formation of anaerobic membrane bioreactors combined with membranes, which can simultaneously achieve methane production and the removal of multiple pollutants (especially antibiotics and toxic metal elements) [11]. In this respect, Thao et al [46] found that the removal rates of COD, BOD, total SS, TN, TP, and total organic carbon could reach 84.2%, 92.7%, 80.8%, 93.3%, 76.0%, and 90%, respectively, when the swine wastewater after AD was filtered by biochar (prepared from mango leaf biomass residue) and treated by ozone catalysis. In addition, new breakthroughs have been made in the treatment of antibiotics and ARGs in swine wastewater by anaerobic digesters.…”