Tags

Type your tag names separated by a space and hit enter

Study the biocatalyzing effect and mechanism of cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification.
Biodegradation. 2014 Jun; 25(3):395-404.B

Abstract

The biocatalyzing effect of a novel cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification process was studied with anthraquinone, 1,8-dichloroanthraquinone, 1,5-dichloroanthraquinone and 1,4,5,8-tetrachloroanthraquinone. The results showed that the immobilized 1,4,5,8-tetrachloroanthraquinone presented the best biocatalyzed effect which increased nitrite denitrification rate to 2.3-fold with 12 mmol/L 1,4,5,8-tetrachloroanthraquinone. The unequal biocatalyzing effect was due to the quantity and position of -Cl substituent in anthraquinone-structure. Moreover, the nitrite denitrification rate was increased with the oxidation reduction potential (ORP) values becoming more negative during the biocatalyzing process. The stabilized ORP value with 12 mmol/L immobilized 1,4,5,8-tetrachloroanthraquinone were 81 mV lower than the control. At the same time, the more OH(-) was produced with the higher nitrite removal rate achieved in the nitrite denitrification process. In addition, a positive linear correlation was found between the nitrite removal reaction constants k [gNO2(-)-N/(gVSS d)] and immobilized 1,4,5,8-tetrachloroanthraquinone concentration (C1,4,5,8-tetrachloroanthraquinone), which was k = 1.8443 C1,4,5,8-tetrachloroanthraquinone + 33.75(R(2) = 0.9411). The initial nitrite concentration of 179 mgNO2(-)-N/L resulted in the maximum nitrite removal rate, which was 6.526[gNO2(-)-N/(gVSS d)]. These results show that the application of cellulose acetate immobilized redox mediators (CE-RM) can be valuable for increasing nitrite denitrification rate.

Authors+Show Affiliations

School of Environmental Science and Engineering, Hebei University of Science and Technology, Yuhua East Road 70#, Shijiazhuang, 050018, People's Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24179089

Citation

Li, Haibo, et al. "Study the Biocatalyzing Effect and Mechanism of Cellulose Acetate Immobilized Redox Mediators Technology (CE-RM) On Nitrite Denitrification." Biodegradation, vol. 25, no. 3, 2014, pp. 395-404.
Li H, Guo J, Lian J, et al. Study the biocatalyzing effect and mechanism of cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification. Biodegradation. 2014;25(3):395-404.
Li, H., Guo, J., Lian, J., Xi, Z., Zhao, L., Liu, X., Zhang, C., & Yang, J. (2014). Study the biocatalyzing effect and mechanism of cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification. Biodegradation, 25(3), 395-404. https://doi.org/10.1007/s10532-013-9668-8
Li H, et al. Study the Biocatalyzing Effect and Mechanism of Cellulose Acetate Immobilized Redox Mediators Technology (CE-RM) On Nitrite Denitrification. Biodegradation. 2014;25(3):395-404. PubMed PMID: 24179089.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study the biocatalyzing effect and mechanism of cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification. AU - Li,Haibo, AU - Guo,Jianbo, AU - Lian,Jing, AU - Xi,Zhenhua, AU - Zhao,Lijun, AU - Liu,Xiaoyu, AU - Zhang,Chenxiao, AU - Yang,Jingliang, Y1 - 2013/11/01/ PY - 2013/08/05/received PY - 2013/10/18/accepted PY - 2013/11/2/entrez PY - 2013/11/2/pubmed PY - 2014/12/15/medline SP - 395 EP - 404 JF - Biodegradation JO - Biodegradation VL - 25 IS - 3 N2 - The biocatalyzing effect of a novel cellulose acetate immobilized redox mediators technology (CE-RM) on nitrite denitrification process was studied with anthraquinone, 1,8-dichloroanthraquinone, 1,5-dichloroanthraquinone and 1,4,5,8-tetrachloroanthraquinone. The results showed that the immobilized 1,4,5,8-tetrachloroanthraquinone presented the best biocatalyzed effect which increased nitrite denitrification rate to 2.3-fold with 12 mmol/L 1,4,5,8-tetrachloroanthraquinone. The unequal biocatalyzing effect was due to the quantity and position of -Cl substituent in anthraquinone-structure. Moreover, the nitrite denitrification rate was increased with the oxidation reduction potential (ORP) values becoming more negative during the biocatalyzing process. The stabilized ORP value with 12 mmol/L immobilized 1,4,5,8-tetrachloroanthraquinone were 81 mV lower than the control. At the same time, the more OH(-) was produced with the higher nitrite removal rate achieved in the nitrite denitrification process. In addition, a positive linear correlation was found between the nitrite removal reaction constants k [gNO2(-)-N/(gVSS d)] and immobilized 1,4,5,8-tetrachloroanthraquinone concentration (C1,4,5,8-tetrachloroanthraquinone), which was k = 1.8443 C1,4,5,8-tetrachloroanthraquinone + 33.75(R(2) = 0.9411). The initial nitrite concentration of 179 mgNO2(-)-N/L resulted in the maximum nitrite removal rate, which was 6.526[gNO2(-)-N/(gVSS d)]. These results show that the application of cellulose acetate immobilized redox mediators (CE-RM) can be valuable for increasing nitrite denitrification rate. SN - 1572-9729 UR - https://www.unboundmedicine.com/medline/citation/24179089/Study_the_biocatalyzing_effect_and_mechanism_of_cellulose_acetate_immobilized_redox_mediators_technology__CE_RM__on_nitrite_denitrification_ L2 - https://doi.org/10.1007/s10532-013-9668-8 DB - PRIME DP - Unbound Medicine ER -