Abstract
In this study, considering humic acids (HA) removal as well as some traditional indexes such as COD, color, and turbidity removals from landfill leachate, potential of the composite of alkaline-thermal-treated sludge (as a bioflocculant) and poly ferric sulfate (PFS) was studied in leachate pretreatment. Results showed that this composite could remove COD, HAs, color, and turbidity from the leachate by 72.6, 79.3, 64.9, and 85.1%, respectively, under the condition of bioflocculant of 19.3 mg L−1, PFS of 12.7 g L−1, pH 6.9, and agitation speed of 202 rpm, which was optimized by response surface methodology. The appreciable removal of COD and HA indicated that the coagulation–flocculation process as a pretreatment could effectively remove recalcitrant compounds from landfill leachate.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
