Abstract：
:The effect of inhibiting nitrification on algal growth and nutrient uptake was studied in photobioreactors treating municipal wastewater. As previous studies have indicated that algae prefer certain nitrogen species to others, and because nitrifying bacteria are inhibited by microalgae, it is important to shed more light on these interactions. In this study allylthiourea (ATU) was used to inhibit nitrification in wastewater-treating photobioreactors. The nitrification-inhibited reactors were compared to control reactors with no ATU added. Microalgae had higher growth in the inhibited reactors, resulting in a higher chlorophyll a concentration. The species mix also differed, with Chlorella and Scenedesmus being the dominant genera in the control reactors and Cryptomonas and Chlorella dominating in the inhibited reactors. The nitrogen speciation in the reactors after 8 days incubation was also different in the two setups, with N existing mostly as NH4-N in the inhibited reactors and as NO3-N in the control reactors.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Krustok I,Odlare M,Truu J,Nehrenheim Edoi
10.1016/j.biortech.2015.12.020subject
Has Abstractpub_date
2016-02-01 00:00:00pages
238-43eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01650-8journal_volume
202pub_type
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