Enhanced quinoline removal by zero-valent iron-coupled novel anaerobic processes: performance and underlying function analysis

Abstract

The addition of different types of ZVI affects the efficiency of quinoline degradation and methane production in WAS digestion.

Degradation of different wastewater by a biological sponge iron system: microbial growth and influencing factors

“…These functional microorganisms play a pivotal role in metabolizing pollutants, thereby facilitating internal enhancement and removal. It is interesting that all these functional bacteria exhibit efficient wastewater treatment capabilities across a broad pH range (5)(6)(7)(8). However, a signicant difference in iron dosage was observed, ranging from 1 g L −1 to 150 g L −1 .…”

“…More importantly, during the ZVI biochemical corrosion process, Fe(II) and Fe(III) are released, which can serve as alternative electron donors or acceptors for the growth and reproduction of microorganisms, such as iron-oxidizing bacteria. 7,8 Meanwhile, microorganisms can induce the production of active oxygen species while metabolising iron ions. 9 Hence, the coupling of ZVI and biological processing can improve the biodegradability of refractory pollutants, including chlorpyrifos, tetracycline, nitrate, and nitrobenzene.…”