Effects of salinity and COD/N on denitrification and bacterial community in dicyclic-type electrode based biofilm reactor

• Published in: Chemosphere (Oxford) Vol. 192; pp. 328 - 336
• Main Authors: Zhai, Siyuan, Ji, Min, Zhao, Yingxin, Pavlostathis, Spyros G., Zhao, Qing
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.02.2018
• Subjects: Autotrophic Processes; bacterial communities; Bacterial community; biofilm; Biofilm electrode reactor (BER); Biofilms; Bioreactors - microbiology; Bioreactors - standards; chemical oxygen demand; Clostridium sticklandii; Denitrification; denitrifying microorganisms; electrodes; genes; Heterotrophic Processes; inoculum; methanol; microbial growth; Municipal wastewater; nitrates; Nitrates - isolation & purification; nitrogen; Nitrogen - analysis; organic carbon; Salinity; salt stress; Sewage - microbiology; sludge; Waste Water - chemistry; Water Purification - methods; Biofilm electrode reactor (BER); Denitrification; Bacterial community; Municipal wastewater; Salinity

A dicyclic-type electrode based biofilm electrode reactor (BER) was developed for advanced nitrate removal from saline municipal wastewater. The denitrification efficiency was evaluated with a synthetic feed (NO3−-N, 20 mg L−1) under different salinity and COD to nitrogen ratios (COD/N). As the sali...