Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/3194
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Leong, Wai Hong | en_US |
dc.contributor.author | Kiatkittipong, Worapon | en_US |
dc.contributor.author | Lam, Man Kee | en_US |
dc.contributor.author | Khoo, Kuan Shiong | en_US |
dc.contributor.author | Show, Pau Loke | en_US |
dc.contributor.author | Mohamad, M. | en_US |
dc.contributor.author | Chong, Siewhui | en_US |
dc.contributor.author | Abdurrahman, Muslim | en_US |
dc.contributor.author | Lim, Jun Wei | en_US |
dc.date.accessioned | 2022-08-03T06:42:34Z | - |
dc.date.available | 2022-08-03T06:42:34Z | - |
dc.date.issued | 2022-01 | - |
dc.identifier.issn | 09601481 | - |
dc.identifier.uri | http://hdl.handle.net/123456789/3194 | - |
dc.description | Web of Science / Scopus | en_US |
dc.description.abstract | The impact of different nitrogen sources on the microalga, Chlorella vulgaris, was studied in a newly developed microalgal-bacterial photobioreactor via a dual nutrient heterogeneity mode. The mechanisms of nitrogen transformation and valorisation were unveiled, and subsequently, optimized via dual nutrient heterogeneity feeding modes comprising of various NH4+-N and NO3−-N concentrations. The nitrogen-assimilation mechanism from the microalgal-bacterial consortium was found to reduce microalgal growth inhibition, stemming at high NH4+-N concentrations. Accordingly, the total nitrogen removal efficiency was enhanced from 40.91% to 96.38% accompanied with maximum microalgal biomass production of up to 792 mg/L at a balanced or higher NH4+-N loading from mixed nitrogen environment. The harvested microalgal biomass contained high lipid accumulation of approximately 30% when fed with optimum NH4+-N and NO3−-N loadings at 60 and 58 mg/d, respectively. At this mixed nitrogen species loadings, high unsaturated fatty acid methyl esters (FAME) were attained. Indeed, the major FAME species (97%–100%) fell within the C16-18 range, signifying biodiesel characteristics conformity to the requirements for quality biodiesel application. Therefore, the dual heterogeneity modes of balanced NH4+-N and NO3−-N loadings into photobioreactor could offer effective microalgal nitrogen assimilation for sustainable wastewater treatment and microalgae-based biodiesel production simultaneously. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.relation.ispartof | Renewable Energy | en_US |
dc.subject | Activated sludge | en_US |
dc.subject | Biodiesel | en_US |
dc.subject | Microalgae | en_US |
dc.subject | Nitrogen | en_US |
dc.subject | Photobioreactor | en_US |
dc.subject | Wastewater | en_US |
dc.title | Dual nutrient heterogeneity modes in a continuous flow photobioreactor for optimum nitrogen assimilation to produce microalgal biodiesel | en_US |
dc.type | National | en_US |
dc.identifier.doi | 10.1016/j.renene.2021.11.117 | - |
dc.description.page | 443 - 451 | en_US |
dc.volume | 184 | en_US |
dc.description.type | Article | en_US |
dc.description.impactfactor | 8.634 | en_US |
dc.description.quartile | Q1 | en_US |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
item.openairetype | National | - |
item.fulltext | No Fulltext | - |
Appears in Collections: | Faculty of Bioengineering and Technology - Journal (Scopus/WOS) |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.