Research output per year
Research output per year
- 48 results
Search results
-
2023
Effects of thermo-chemical and enzymatic pre-treatment of tropical seaweeds and freshwater macrophytes on biogas and bioethanol production
Jelani, F., Walker, G. & Akunna, J., 1 Mar 2023, (E-pub ahead of print) In: International Journal of Environmental Science and Technology. 10 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile17 Downloads (Pure) -
2022
Assessment of leachable and persistent dissolved organic carbon in sludges and biosolids from municipal wastewater treatment plants
O'Keeffe, J. & Akunna, J., 1 Apr 2022, In: Journal of Environmental Management. 307, 10 p., 114565.Research output: Contribution to journal › Article › peer-review
Open AccessFile30 Downloads (Pure) -
Cow urine as a source of nutrients for Microbial-Induced Calcite Precipitation in sandy soil
Comadran Casas, C., Schaschke, C. J., Akunna, J. C. & Jorat, M. E., 15 Feb 2022, In: Journal of Environmental Management. 304, 10 p., 114307.Research output: Contribution to journal › Article › peer-review
Open AccessFile7 Citations (Scopus)27 Downloads (Pure) -
Dissolution experiments on dolerite quarry fines at low liquid to solid ratio: a source of calcium for MICP
C. Casas, C., Schaschke, C. J., Akunna, J. C. & Jorat, M. E., 30 Sept 2022, In: Environmental Geotechnics. 9, 6, p. 331-339 9 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile6 Citations (Scopus)161 Downloads (Pure) -
2020
Investigating the impact of inoculum source on anaerobic digestion of various species of marine macroalgae
Obata, O., Ditchfield, A., Hatton, A. & Akunna, J., 1 Mar 2020, In: Algal Research. 46, 9 p., 101803.Research output: Contribution to journal › Article › peer-review
Open AccessFile13 Citations (Scopus)160 Downloads (Pure) -
2019
Road deposited sediment: implications for the performance of filter drains servicing strategic trunk roads
Mitchell, G., Oduyemi, K. & Akunna, J., 18 Sept 2019, In: Water Science & Technology. 80, 4, p. 747-761 15 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Citations (Scopus)98 Downloads (Pure) -
2018
Effect of liquid nitrogen pre-treatment on various types of wool waste fibres for biogas production
Kuzmanova, E., Zhelev, N. & Akunna, J. C., May 2018, In: Heliyon. 4, 5, 11 p., e00619.Research output: Contribution to journal › Article › peer-review
Open AccessFile11 Citations (Scopus)121 Downloads (Pure) -
2017
Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor
Tota-Maharaj, K., Akunna, J. & Cheddie, D., 31 Jul 2017, In: Journal of the Association of Professional Engineers of Trinidad & Tobago. 45, 1, p. 11-19 9 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile70 Downloads (Pure) -
Reviewing factors affecting the effectiveness of decentralised domestic wastewater treatment systems for phosphorus and pathogen removal
Akunna, J. C., O'Keeffe, J. & Allan, R., Oct 2017, In: Desalination and Water Treatment Journal. 91, 1, p. 40-47 8 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile6 Citations (Scopus)386 Downloads (Pure) -
2016
Co-digestion of terrestrial plant biomass with marine macro-algae for biogas production
Akunna, J. C. & Hierholtzer, A., Oct 2016, In: Biomass and Bioenergy. 93, p. 137-143 7 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile15 Citations (Scopus)195 Downloads (Pure) -
Ethanol production from brown seaweed using non-conventional yeasts
Obata, O., Akunna, J., Bockhorn, H. & Walker, G., 29 Jun 2016, In: Bioethanol. 2, 1, p. 134-145 12 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile711 Downloads (Pure) -
Investigating the removal of some pharmaceutical compounds in hospital wastewater treatment plants operating in Saudi Arabia
Al Qarni, H. M., Collier, P., O'Keeffe, J. & Akunna, J. C., 1 Jul 2016, In: Environmental Science and Pollution Research. 23, 13, p. 13003-13014Research output: Contribution to journal › Article › peer-review
Open AccessFile92 Citations (Scopus)186 Downloads (Pure) -
2015
Hydrolytic effects of acid and enzymatic pre-treatment on the anaerobic biodegradability of Ascophyllum nodosum and Laminaria digitata species of brown seaweed
Obata, O., Akunna, J. C. & Walker, G., 1 Sept 2015, In: Biomass and Bioenergy. 80, p. 140-146 7 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile15 Citations (Scopus)211 Downloads (Pure) -
2014
Modelling start-up performance of anaerobic digestion of saline-rich macro-algae
Akunna, J. C. & Hierholtzer, A., 1 May 2014, In: Water Science & Technology. 69, 10, p. 2059-2065 7 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile16 Citations (Scopus)248 Downloads (Pure) -
Towards sustainable groundwater management in the south-western part of the Chad Basin, Nigeria: a stakeholder perspective
Bakari, A., Akunna, J. & Jefferies, C., Sept 2014, In: British Journal of Applied Science & Technology. 4, 25, p. 3726-3739 14 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile121 Downloads (Pure) -
Treatment of metal-contaminated wastewater: a comparison of low-cost biosorbents
Akunwa, N. K., Muhammad, M. N. & Akunna, J. C., 15 Dec 2014, In: Journal of Environmental Management. 146, p. 517-523 7 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile47 Citations (Scopus)200 Downloads (Pure) -
2013
The impact and mode of action of phenolic compounds extracted from brown seaweed on mixed anaerobic microbial cultures
Hierholtzer, A., Chatellard, L., Kierans, M., Akunna, J. C. & Collier, P. J., Apr 2013, In: Journal of Applied Microbiology. 114, 4, p. 964-973 10 p.Research output: Contribution to journal › Article › peer-review
55 Citations (Scopus) -
2012
Modelling sodium inhibition on the anaerobic digestion process
Akunna, J. C. & Hierholtzer, A., 2012, In: Water Science and Technology. 66, 7, p. 1565-1573 9 p.Research output: Contribution to journal › Article › peer-review
48 Citations (Scopus) -
2011
Mangrove vulnerability modelling in parts of Western Niger Delta, Nigeria using satellite images, GIS techniques and Spatial Multi-Criteria Analysis (SMCA)
Omo-Irabor, O. O., Olobaniyi, S. B., Akunna, J. C., Venus, V., Maina, J. M. & Paradzayi, C., Jul 2011, In: Environmental Monitoring and Assessment. 178, 1-4, p. 39-51 13 p.Research output: Contribution to journal › Article › peer-review
39 Citations (Scopus) -
Optimisation study on the production of anaerobic digestate compost for application on arable soils
Abdullahi, Y. A., Suleiman, S. S. & Akunna, J. C., 1 Jun 2011, In: Bayero Journal of Pure and Applied Sciences. 4, 1, 9 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Stimulation of bioprocesses by ultrasound
Kwiatkowska, B., Bennett, J., Akunna, J. C., Walker, G. M. & Bremner, D. H., 2011, In: Biotechnology Advances. 29, 6, p. 768-780 13 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile158 Citations (Scopus)985 Downloads (Pure) -
2010
Anaerobic digestion of distillery spent wash: influence of enzymatic pre-treatment of intact yeast cells
Mallick, P., Akunna, J. C. & Walker, G. M., Mar 2010, In: Bioresource Technology. 101, 6, p. 1681-1685 5 p.Research output: Contribution to journal › Article › peer-review
30 Citations (Scopus) -
Bioethanol in Nigeria: comparative analysis of sugarcane and sweet sorghum as feedstock sources
Nasidi, M., Akunna, J., Deeni, Y., Blackwood, D. & Walker, G., 2010, In: Energy and Environmental Science. 3, 10, p. 1447-1457 11 p.Research output: Contribution to journal › Article › peer-review
30 Citations (Scopus) -
Enhancing anaerobic digestion processes for improved biogas production
Akunna, J. C., Mallick, P. & Walker, G. M., Feb 2010, In: Journal of Solid Waste Technology and Management. 36, 1, p. 856-860 5 p.Research output: Contribution to journal › Article › peer-review
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Improvement in the efficiency of hydrolysis of anaerobic digestion in sewage sludge by the use of enzymes
Rashed, I. G. A-A., Akunna, J. C., El-Halwany, M. M. & Abou Atiaa, A. F. F., Sept 2010, In: Desalination and Water Treatment. 12, 1-3, p. 280-285 5 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile16 Citations (Scopus)288 Downloads (Pure) -
Modelling head losses in granular bed anaerobic baffled reactors at high flows during start-up
Shanmugam, A. S. & Akunna, J. C., Oct 2010, In: Water Research. 44, 18, p. 5474-5480 7 p.Research output: Contribution to journal › Article › peer-review
14 Citations (Scopus) -
2009
Estimating methane production potential of an old municipal landfill
Akunna, J. C., Hasan, K. & Kerr, K., Aug 2009, In: The Journal of Solid Waste Technology and Management. 35, 3, p. 156-161 6 p.Research output: Contribution to journal › Article › peer-review
1 Citation (Scopus) -
2008
Comparing the performance of UASB and GRABBR treating low strength wastewaters
Shanmugam, A. S. & Akunna, J. C., Jul 2008, In: Water Science and Technology. 58, 1, p. 225–232 8 p.Research output: Contribution to journal › Article › peer-review
11 Citations (Scopus) -
Investigating the effects of anaerobic and aerobic post-treatment on quality and stability of organic fraction of municipal solid waste as soil amendment
Abdullahi, Y. A., Akunna, J. C., White, N. A., Hallett, P. D. & Wheatley, R., Dec 2008, In: Bioresource Technology. 99, 18, p. 8631-8636 6 p.Research output: Contribution to journal › Article › peer-review
98 Citations (Scopus) -
Structural analysis of anaerobic granules in a phase separated reactor by electron microscopy
Baloch, M. I., Akunna, J. C., Kierans, M. & Collier, P. J., Mar 2008, In: Bioresource Technology. 99, 5, p. 922-929 8 p.Research output: Contribution to journal › Article › peer-review
74 Citations (Scopus) -
Surface and groundwater water quality assessment using multivariate analytical methods: a case study of the Western Niger Delta, Nigeria
Omo-Irabor, O. O., Olobaniyi, S. B., Oduyemi, K. O. K. & Akunna, J. C., Jan 2008, In: Physics and Chemistry of the Earth. 33, 8-13, p. 666-673 8 p.Research output: Contribution to journal › Article › peer-review
122 Citations (Scopus) -
2007
Anaerobic digestion of municipal solid wastes containing variable proportions of waste types
Akunna, J. C., Abdullahi, Y. A. & Stewart, N. A., 2007, In: Water Science & Technology. 56, 8, p. 143–149 7 p.Research output: Contribution to journal › Article › peer-review
11 Citations (Scopus) -
The performance of a phase separated granular bed bioreactor treating brewery wastewater
Baloch, M. I., Akunna, J. C. & Collier, P. J., Jul 2007, In: Bioresource Technology. 98, 9, p. 1849-1855 7 p.Research output: Contribution to journal › Article › peer-review
55 Citations (Scopus) -
2006
Assessment of morphology for anaerobic-granular particles
Baloch, M. I., Akunna, J. C. & Collier, P. J., 1 Jun 2006, In: Water Environment Research. 78, 6, p. 643-646 4 p.Research output: Contribution to journal › Article › peer-review
4 Citations (Scopus) -
Carbon and nitrogen removal in a granular bed baffled reactor
Baloch, M. I., Akunna, J. C. & Collier, P. J., Feb 2006, In: Environmental Technology. 27, 2, p. 201-208 8 p.Research output: Contribution to journal › Article › peer-review
27 Citations (Scopus) -
2003
Effect of rapid hydraulic shock loads on the performance of granular bed baffled reactor
Baloch, M. I. & Akunna, J. C., Mar 2003, In: Environmental Technology. 24, 3, p. 361-368 8 p.Research output: Contribution to journal › Article › peer-review
13 Citations (Scopus) -
Granular bed baffled reactor (Grabbr): solution to a two-phase anaerobic digestion system
Baloch, M. I. & Akunna, J. C., Nov 2003, In: Journal of Environmental Engineering, ASCE. 129, 11, p. 1015-1021 7 p.Research output: Contribution to journal › Article › peer-review
37 Citations (Scopus) -
2001
Comparison of RBC and SBR systems for the treatment of sewage from small communities
Akunna, J. C. & Shepherd, W., May 2001, In: Water and Environment Journal. 15, 2, p. 147-151 5 p.Research output: Contribution to journal › Article › peer-review
7 Citations (Scopus) -
Increasing the fertilizer value of palm oil mill sludge: bioaugmentation in nitrification
Onyla, C. O., Uyub, A. M., Akunna, J. C., Norulaini, N. A. & Omar, A. K. M., Nov 2001, In: Water Science & Technology. 44, 10, p. 157–162 6 p.Research output: Contribution to journal › Article › peer-review
39 Citations (Scopus) -
2000
Combined anaerobic–aerobic SBR for the treatment of piggery wastewater
Bernet, N., Delgenes, N., Akunna, J. C., Delgenes, J. P. & Moletta, R., Feb 2000, In: Water Research. 34, 2, p. 611-619 9 p.Research output: Contribution to journal › Article › peer-review
195 Citations (Scopus) -
Performance of a granular-bed anaerobic baffled reactor (GRABBR) treating whisky distillery wastewater
Akunna, J. C. & Clark, M., Sept 2000, In: Bioresource Technology. 74, 3, p. 257-261 5 p.Research output: Contribution to journal › Article › peer-review
95 Citations (Scopus) -
Performance of family-size sequencing batch reactor and rotating biological contactor units treating sewage at various operating conditions
Akunna, J. C. & Jefferies, C., 2000, In: Water Science and Technology. 41, 1, p. 97-104 8 p.Research output: Contribution to journal › Article › peer-review
15 Citations (Scopus) -
1998
Effect of nitrate on methanogenesis at low redox potential
Akunna, J. C., Bernet, N. & Moletta, R., Dec 1998, In: Environmental Technology. 19, 12, p. 1249-1254 6 p.Research output: Contribution to journal › Article › peer-review
20 Citations (Scopus) -
1994
Combined organic carbon and complete nitrogen removal using anaerobic and aerobic upflow filters
Akunna, J. C., Bizeau, C., Moletta, R., Bernet, N. & Héduit, A., Dec 1994, In: Water Science and Technology. 30, 12, p. 297-306 10 p.Research output: Contribution to journal › Article › peer-review
57 Citations (Scopus) -
Nitrate reduction by anaerobic sludge using glucose at various nitrate concentrations: ammonification, denitrification and methanogenic activities
Akunna, J. C., Bizeau, C. & Moletta, R., Jan 1994, In: Environmental Technology. 15, 1, p. 41-49 9 p.Research output: Contribution to journal › Article › peer-review
81 Citations (Scopus) -
1993
Nitrate and nitrite reductions with anaerobic sludge using various carbon sources: glucose, glycerol, acetic acid, lactic acid and methanol
Akunna, J. C., Bizeau, C. & Moletta, R., Aug 1993, In: Water Research. 27, 8, p. 1303-1312 10 p.Research output: Contribution to journal › Article › peer-review
260 Citations (Scopus) -
1992
Anaerobic degradation of municipal wastes in landfill
Attal, A., Akunna, J., Camacho, P., Salmon, P. & Paris, I., 1 Apr 1992, In: Water Science & Technology. 25, 7, p. 243-253 11 p.Research output: Contribution to journal › Article › peer-review
33 Citations (Scopus) -
Denitrification in anaerobic digesters: possibilities and influence of wastewater COD/N-NOX ratio
Akunna, J. C., Bizeau, C. & Moletta, R., Sept 1992, In: Environmental Technology. 13, 9, p. 825-836 12 p.Research output: Contribution to journal › Article › peer-review
147 Citations (Scopus)