Abstract：
:The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10gNaClL(-1) to 20gNaClL(-1) (Phase I); ii. hydrocarbons dosing at 20mgL(-1) with a constant salt concentration of 20gNaClL(-1) (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The results revealed that the oxic tank was the major source of nitrous oxide emission, likely due to the gas stripping by aeration. The joint effect of salinity and hydrocarbons was found to be crucial for the production of nitrous oxide.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Mannina G,Cosenza A,Di Trapani D,Laudicina VA,Morici C,Ødegaard Hdoi
10.1016/j.biortech.2016.07.124subject
Has Abstractpub_date
2016-11-01 00:00:00pages
289-297eissn
0960-8524issn
1873-2976pii
S0960-8524(16)31104-Xjournal_volume
219pub_type
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