Abstract:
:On account of the recalcitrant and highly toxicity of organonitrile substrates, traditional processes are limited by HCN poisoning thus inefficient. This article proposed a novel anaerobic fluidized bed reactor with electric field activation (AFBR-EFA) which had a 260-day continuous operation. The operation aims to explore the practicability of the enhanced reduction of isophthalonitrile (IPN), with emphasis on the optimum operation parameters and synergistic effect between electric field and anaerobic processes. The results showed that relatively higher voltage (1.0 V < V < 1.6 V) had a positive impact on reduction enhancement. High removal could be obtained at high initial concentration, low methanol dosage and short HRT which indicated that tolerance to shock loading was significantly enhanced in AFBR-EFA. Furthermore, EFA visibly motivated the enrichment of electrochemically active bacteria and various autotrophic IPN degradation-related species. The significantly efficient performance makes the potential for full-scale application of the AFBR-EFA markedly improved, particularly for treating hard-biodegraded contaminants.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Cui T,Wang Y,Wang X,Zhang Y,Han W,Li J,Sun X,Shen J,Wang Ldoi
10.1016/j.biortech.2020.123115subject
Has Abstractpub_date
2020-03-03 00:00:00pages
123115eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30386-2journal_volume
306pub_type
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