Abstract:
:The production of sulfur (S) from the biological oxidization of sulfide (S2-) by SOB (sulfide-oxidizing bacteria) allows for resource recovery. Past researches have indicated that S recovery from S2- oxidation MABR (the membrane aerated biofilm reactor) was feasible. The process was complicated by the requirement of maintaining appropriate oxygen supply to prevent the produced S from being further oxidized into sulfate ( SO 4 2 - ) and by the presence of heterotrophic biomass. In this study, a multispecies biofilm model was developed and experimentally validated to gain insight for the S recovery process in MABR. The developed model was capable of predicting the S recovery performance in the MABR. The optimal conditions involved in maintaining the appropriate oxygen flux and the biofilm thickness according to the hydraulic and S2- loading rate. The low anoxic heterotrophic growth rate using SO 4 2 - and S as electron donors could explain why the impact of heterotrophic growth was insignificant.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Jiang X,Xu B,Wu Jdoi
10.1080/09593330.2018.1426638subject
Has Abstractpub_date
2019-05-01 00:00:00pages
1557-1567issue
12eissn
0959-3330issn
1479-487Xjournal_volume
40pub_type
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