Sulfate radical oxidation combined with iron flocculation for upgrading biological effluent of coking wastewater.

ABSTRACT: Because the components of the coking wastewater was biologically toxic and hence inhibit the actions of microorganisms in conventional biological treatment processes,the biological effluent of coking wastewater (BECW) still remains much recalcitrant pollutants. In the current work, we set out to explore the feasibility of using a proposed advanced oxidation method, involving the persulfate-activated zero-valent iron system (PS/ZVI), to realize a deep treatment of BECW. The efficiency levels at which sulfate radical oxidation combined with iron flocculation removed pollutants, specifically TOC, phenolic compounds (PCs), cyanide, and suspended solids (SSs), as well as removing colour were investigated in batch tests. Increasing the persulfate concentration generally resulted in improved poll

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC9090602 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature