Coagulation-membrane filtration of Chlorella vulgaris

Lee, Dong Hoon; Liao, Guan Yu; Chang, Yin Ru; Chang, Jo Shu

doi:10.1016/j.biortech.2011.12.098

Cited by 40 publications

(10 citation statements)

References 27 publications

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“…The spent DS could also be diluted by freshwater for irrigation. Alternatively, algal biomass can be separated from the diluted DS via centrifugation or coagulation‐filtration (e.g., MF) and used to produce lipid, biofuel, and other valuable products (Branyikova, Prochazkova, Potocar, Jezkova, & Branyik, ; Chang & Lee, ; Lee, Liao, Chang, & Chang, ). After algal harvesting, one may use RO to extract clean water from the diluted DS and regenerate the DS.…”

Section: Resultsmentioning

confidence: 99%

Forward osmosis with an algal draw solution to concentrate municipal wastewater and recover resources

Rood

Zhang

Inniss

et al. 2019

Water Environment Research

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This study aimed to concentrate and recover resources from municipal wastewater with a novel forward osmosis (FO) system. The FO system used synthetic seawater as the draw solution (DS) to extract water from the feed solution (FS) (synthetic raw municipal wastewater). Because ammonium passed through the FO membrane from the FS to the DS, we cultivated an algal strain (Chlorella vulgaris) in the DS to remove and recover ammonium. For three consecutive FO cycles, the algal FO system removed 35.4% of the ammonium from the DS, increased the concentrations of COD and PO 3− 4 − P in the FS by 43.0%, and achieved a water flux of 11.59 ± 0.49 L m −2 hr −1 . Throughout the FO cycles, the algal biomass concentration of the DS stayed at 606 ± 29 mg COD/L due to simultaneous algal growth and DS dilution. This FO process may be feasible to implement for full-scale applications to concentrate wastewater and recover resources. © 2019 Water Environment Federation • Practitioner points• A novel forward osmosis (FO) system with an algal draw solution (DS) concentrated municipal wastewater and recovered resources (ammonium). • Ammonium but not organic matter or phosphate diffused across the FO membrane from the feed solution (FS) to the DS. • The algal FO system increased COD/phosphate concentration in the FS by 43.0% and removed 35.4% of ammonium from the DS. • The water fluxes in the algal FO system and the control were 11.59 and 12.02 L m −2 hr −1 , respectively. • The novel algal FO process has the potential to improve full-scale efficiency by concentrating municipal wastewater and recovering nutrients.

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Section: Resultsmentioning

confidence: 99%

Forward osmosis with an algal draw solution to concentrate municipal wastewater and recover resources

Rood

Zhang

Inniss

et al. 2019

Water Environment Research

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“…The volumes of broth produced in this study did not seem to be influenced by the initial CDW of the culture, and were all between 14-22 ml, representing around 5% of the culture volume, producing highdensity broths (>20% w/w solids). In addition, to further enhance the solid-liquid separation, membrane filtration could follow after the flocculation process to achieve better solids content in the broth and/or to lower or totally remove suspended cells in the discharge (Lee et al, 2012a(Lee et al, , 2012b.…”

Section: Understanding the Effects Of Ph And Multi-dosing For Efficiementioning

confidence: 99%

A strategy for urban outdoor production of high-concentration algal biomass for green biorefining

Lim

Chen²,

Wang

2013

Bioresource Technology

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“…[1][2][3][4][5][6][7][8] Because algae biomass was capable of producing much more oil yield per unit cultivation area than other biomass such as corn and soybean, production of algal biodiesel has drawn the interest of scientists because of its potential prospect for practical application. Because carbon dioxide (CO 2 ) sequestration via algae was one to two orders of magnitude higher than that of terrestrial plants, [9] algae are considered a potential carbon sink in removing overloaded carbon dioxide from the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Advances and Challenges on Algae Harvesting and Drying

2015

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Biodiesel production from algae offers a promising prospect for practical applications among the still developing biofuel technologies. The fact that algae are capable of producing much more yield provides an edge over other types of biofuel. Though algal biofuel research is still developing and its practical application is yet to be ascertained, promising work on laboratory-and pilot-scale algae harvesting systems has been extensively reported. Because algae harvesting and drying are vital elements in biofuel production, recent advances on various algae harvesting, dewatering, and drying technologies are reviewed and discussed. Challenges and prospects of algae harvesting and drying are also outlined.

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Coagulation-membrane filtration of Chlorella vulgaris

Cited by 40 publications

References 27 publications

Forward osmosis with an algal draw solution to concentrate municipal wastewater and recover resources

Forward osmosis with an algal draw solution to concentrate municipal wastewater and recover resources

A strategy for urban outdoor production of high-concentration algal biomass for green biorefining

Advances and Challenges on Algae Harvesting and Drying

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