期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 724, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.138349
关键词
Nitrogen release; Phosphorus release; Heavy metals release; Erythromycin fermentation residue; Heat-activated persulfate oxidation
资金
- National Natural Science Foundation of China [51678189]
Erythromycin fermentation residue (EFR) is one kind of biological waste with high organic matter content. The recycling of EFR is not only beneficial to the environmental protection, but also to the economic development. In this study, the release of organic matter, nitrogen (N), phosphorus (P) and heavy metals (HMs) from EFR under heat-activated persulfate (PS) oxidation conditioning was investigated. Results indicated that oxidation conditioning promoted the release of soluble chemical oxygen demand (SCOD). Heat-activated PS oxidation conditioning boosted the release of total nitrogen (TN), ammonia-nitrogen (NH4+-N) and nitrate-nitrogen (NO3--N) into the supernatant, as well as the decomposition of organic nitrogen (ON). Concurrently, heat-activated PS oxidation conditioning facilitated the release of total phosphorus (TP), orthophosphate (PO43--P) and organic phosphorus (OP) into the supernatant, and the decomposition of OP. Furthermore, heat-activated PS oxidation conditioning resulted in the increase of release efficiencies of HMs. Therefore, heat-activated PS oxidation conditioning was beneficial to the release of organic matter, nutrients and HMs. (C) 2020 Published by Elsevier B.V.
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