Removal of metal from acid mine drainage using a hybrid system including a pipes inserted microalgae reactor

• Published in: Bioresource technology Vol. 150; pp. 242 - 248
• Main Authors: Park, Young-Tae, Lee, Hongkyun, Yun, Hyun-Shik, Song, Kyung-Guen, Yeom, Sung-Ho, Choi, Jaeyoung
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-12-2013; Elsevier
• Subjects: Acid mine drainage; Acids - chemistry; Batch Cell Culture Techniques; Biodegradation, Environmental - drug effects; Biological and medical sciences; Biomass; Bioreactors; Culture; Effluents; Fundamental and applied biological sciences. Psychology; Hydrogen-Ion Concentration; Iron; Iron - pharmacology; Iron removal; Kinetics; Lipids; Lipids - analysis; Logistics; Metals - isolation & purification; Microalgae - drug effects; Microalgae - growth & development; Microalgae - metabolism; Microalgae culture; Mining; Nephroselmis; Pipe; Pipes inserted microalgae reactor; Pretreatment; Reactors; Time Factors; Waste Disposal, Fluid - instrumentation; Waste Water - chemistry; Water Pollutants, Chemical - isolation & purification; Microalgae culture; Pipes inserted microalgae reactor; Acid mine drainage; Iron removal; Iron; Pipe; Metal; Hybrid system; Alga; Microorganism; Reactor; Mine soil; Acid medium; Drainage water
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2013.09.136

•Active treatment and continuous PIMR system are combined for Fe removal from AMD.•High Fe concentration in AMD is detrimental to microalgae growth and lipid accumulation.•Pretreated AMD could be used as iron source for microalgae cultivation instead of artificial mineral culture medium.
In this study, the microalgae culture system to combined active treatment system and pipe inserted microalgae reactor (PIMR) was investigated. After pretreated AMD in active treatment system, the effluent load to PIMR in order to Nephroselmis sp. KGE 8 culture. In experiment, effect of iron on growth and lipid accumulation in microalgae were inspected. The 2nd pretreatment effluent was economic feasibility of microalgae culture and lipid accumulation. The growth kinetics of the microalgae are modeled using logistic growth model and the model is primarily parameterized from data obtained through an experimental study where PIMR were dosed with BBM, BBM added 10mgL−1 iron and 2nd pretreatment effluent. Moreover, the continuous of microalgae culture in PIMR can be available. Overall, this study indicated that the use of pretreated AMD is a viable method for culture microalgae and lipid accumulation.