Simultaneous microalgal biomass production and CO2 fixation by cultivating Chlorella sp. GD with aquaculture wastewater and boiler flue gas

Kuo, Chiu Mei; Jian, Jhong Fu; Lin, Tsung-Hsien; Chang, Yevvon Yi-Chi; Wan, Xin; Lai, Jinn Tsyy; Chang, Jo Shu; Lin, Chih Sheng

doi:10.1016/j.biortech.2016.09.014

Cited by 114 publications

(50 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The integrated system has demonstrated the potentials of bioremediation of aquaculture water‐waste and minimising water expenditure (Kuo et al . ). Multi‐trophic systems that involves the use of Chlorella sp.…”

Section: Bioremediation Of Aquatic Environmentmentioning

confidence: 97%

“…Bioremediation of aquaculture wastewater is cost effective and most feasible in removing excess dissolved nutrients (Sirakov et al 2015). The integrated system has demonstrated the potentials of bioremediation of aquaculture water-waste and minimising water expenditure (Kuo et al 2016). Multi-trophic systems that involves the use of Chlorella sp.…”

Section: Bioremediation Of Aquatic Environmentmentioning

confidence: 99%

See 1 more Smart Citation

Applications of microalga Chlorella vulgaris in aquaculture

Ahmad

Shariff

Yusoff

et al. 2018

Reviews in Aquaculture

157

View full text Add to dashboard Cite

Microalgae biomass is used in aquaculture as feed, growth enhancers and immunostimulants. Chlorella vulgaris is an important species with a good biomolecular composition. Commercially, it is one of the most commonly used microalga in aquaculture. Several studies confirmed its ability to improve nutrition, immunity, aquatic bioremediation, amelioration of stress, disease resistance of fish and inhibits bacterial quorum sensing when used appropriately. Despite claims of its benefits, C. vulgaris is reported to have unfavourable effects when incorporated in diets at higher inclusion levels. In addition, its rigid cell wall might restrict the access of digestive enzymes to the intracellular components for proper digestion and assimilation. Thus, this review discusses the role of C. vulgaris and its importance in aquaculture with emphasis on its environmental requirements, morphology, pigments, digestibility, dynamics on growth performance, antibacterial activity, bacterial quorum sensing, immunomodulatory effect, anti‐stress effect, gut microbiome, aquatic bioremediation and its safety as food or feed.

show abstract

Section: Bioremediation Of Aquatic Environmentmentioning

confidence: 97%

Section: Bioremediation Of Aquatic Environmentmentioning

confidence: 99%

Applications of microalga Chlorella vulgaris in aquaculture

Ahmad

Shariff

Yusoff

et al. 2018

Reviews in Aquaculture

157

View full text Add to dashboard Cite

show abstract

“…The growth rate and biomass productivity of microalgae can be improved by supplementing the wastewater with cheap source of nitrogen and phosphorus such as food waste [31] and centrate [32]. The biomass can further be enhanced by the addition of CO 2 from flue gas [33,34]. Though Asterarcys quadricellulare had the highest biomass and growth rate when cultivated in wastewater compared to Neochloris aquatica, the highest lipid accumulation was recorded in Neochloris aquatica (14.85 ± 1.63 mg).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Pre-Chlorinated Wastewater Effluent for Microalgal Cultivation and Biodiesel Production

Odjadjare

Mutanda

Chen

et al. 2018

Water

View full text Add to dashboard Cite

Microalgae are promising feedstock to produce biodiesel and other value added products. However, the water footprint for producing microalgal biodiesel is enormous and would put a strain on the water resources of water stressed countries like South Africa if freshwater is used without recycling. This study evaluates the utilization of pre-chlorinated wastewater as a cheap growth media for microalgal biomass propagation with the aim of producing biodiesel whilst simultaneously remediating the wastewater. Wastewater was collected from two wastewater treatment plants (WWTPs) in Durban, inoculated with Neochloris aquatica and Asterarcys quadricellulare and the growth kinetics monitored for a period of 8 days. The physicochemical parameters; including chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) were determined before microalgal cultivation and after harvesting. Total lipids were quantified gravimetrically after extraction by hexane/isopropanol (3:2 v/v). Biodiesel was produced by transesterification and characterised by gas chromatography. The total carbohydrate was extracted by acid hydrolysis and quantified by spectrophotometric method based on aldehyde functional group derivatization. Asterarcys quadricellulare utilized the wastewater for growth and reduced the COD of the wastewater effluent from the Umbilo WWTP by 12.4%. Total nitrogen (TN) and phosphorus (TP) were reduced by 48% and 50% respectively by Asterarcys quadricellulare cultivated in sterile wastewater while, Neochloris reduced the TP by 37% and TN by 29%. Although the highest biomass yield (460 mg dry weight) was obtained for Asterarcys, the highest amount of lipid (14.85 ± 1.63 mg L −1 ) and carbohydrate (14.84 ± 0.1 mg L −1 ) content were recorded in Neochloris aquatica. The dominant fatty acids in the microalgae were palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1). The biodiesel produced was determined to be of good quality with high oxidation stability and low viscosity, and conformed to the American society for testing and materials (ASTM) guidelines.

show abstract

“…was already tested to remediate aquaculture wastewater (fish farm) aerated with boiler flue gas wastewater. Thus, the authors proved that is feasible simultaneously reduce CO 2 emission and produce microalgae biomass [54][55].…”

Section: Wastewater Treatmentmentioning

confidence: 99%