Tannic acid-modified iron-biochar conductive carrier and preparation method thereof and anaerobic treatment method for wastewater

Abstract

A tannic acid-modified iron-biochar composite conductive carrier preparation method and an anaerobic treatment method for wastewater are provided. The preparation method of the conductive carrier includes calcining a wooden raw material at a high temperature to obtain biochar, drying, and sieving; dissolving the biochar and a soluble iron salt in deionized water and performing magnetic stirring; adding tannic acid after full dissolution, and adjusting the pH with an alkali solution; and transferring with pretreated carbon felt to a reactor for hydrothermal synthesis, naturally cooling, washing with deionized water, and vacuum drying to obtain the tannic acid-modified iron-biochar composite conductive carrier. The obtained tannic acid-modified iron-biochar composite conductive carrier is used for anaerobic wastewater treatment.

Dependencies are inferred from the claim text.