| Literature DB >> 28550631 |
Zengshuai Zhang1, Liang Guo2,3, Qianqian Li1, Yangguo Zhao1, Mengchun Gao1, Zonglian She1.
Abstract
With the increasing of high saline waste sludge production, the treatment and utilization of saline waste sludge attracted more and more attention. In this study, the biological hydrogen production from saline waste sludge after heating pretreatment was studied. The substrate metabolism process at different salinity condition was analyzed by the changes of soluble chemical oxygen demand (SCOD), carbohydrate and protein in extracellular polymeric substances (EPS), and dissolved organic matters (DOM). The excitation-emission matrix (EEM) with fluorescence regional integration (FRI) was also used to investigate the effect of salinity on EPS and DOM composition during hydrogen fermentation. The highest hydrogen yield of 23.6 mL H2/g VSS and hydrogen content of 77.6% were obtained at 0.0% salinity condition. The salinity could influence the hydrogen production and substrate metabolism of waste sludge.Entities:
Keywords: Dissolved organic matters (DOM); Excitation-emission matrix (EEM); Extracellular polymeric substances (EPS); Hydrogen production; Salinity
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Year: 2017 PMID： 28550631 DOI： 10.1007/s11356-017-9222-z
Source DB: PubMed Journal: Environ Sci Pollut Res Int ISSN： 0944-1344 Impact factor: 4.223