Chitosan coagulation–membrane filtration of Chlorella vulgaris

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

“…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.…”

Combining patterned membrane filtration and flocculation for economical microalgae harvesting

“…Chitosan flocculation combined with microfiltration proved highly efficient for C. sorokiniana harvesting, achieving 20-50 fold concentration (Xu et al, 2013 ). Besides, membrane fluxes and harvesting efficien cies increased with increasing chitosan dosage for C. vulgaris and Dictyosphaerium sp., indicating that the synergy between mem brane filtration and flocculation not only exists under optimal chi tosan condition, but also under sub-optimal condition (Lee et al, 2012a;Zhao et al, 2020b ). Patterned membranes have not been used yet in flocculation-assisted filtration.…”

Feasibility study on magnetic enhanced flocculation for mitigating membrane fouling

“…About 80% permeate flux of membrane was maintained during the filtration of humic acid solution. Lee et al [11] observed that coagulation using chitosan could remove chlorella vulgaris effectively, which was helpful for membrane fouling reduction. Moreover, pretreatment by coagulation with powdered activated carbon before membrane filtration could form larger and more porous flocs than those formed during conventional coagulation [12].…”