Biofilm photobioreactors for the treatment of industrial wastewaters

Muñoz, Raúl; Köllner, Claudia; Guieysse, Benoı̂t

doi:10.1016/j.jhazmat.2008.03.018

Cited by 90 publications

(28 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bacteria release carbon dioxide after mineralization of organic matters in return for algal photosynthesis. This symbiotic association between algae and bacteria within biofilms may make them not only an important role in river self-purification, but also in the removal of organic matters from wastewater [17]. Safonova et al [18] used selected algal-bacterial consortia to treat industrial wastewater and observed a significant decrease in phenols (up to 85%), anionic surface active substance (up to 73%), oil spills (up to 96%), zinc (up to 90%), and biochemical oxygen demand (BOD, up to 97%).…”

Section: Introductionmentioning

confidence: 99%

The Role of Naturally Occurring River Biofilms on the Degradation Kinetics of Diazinon

Tien¹,

Chuang²,

Chen³

2011

CLEAN Soil Air Water

View full text Add to dashboard Cite

River biofilms are dominant riverine biota with diverse microorganisms. They have been found to contribute greatly to river self-purification for removal of nutrients and organic matter. This study intended to investigate the ability of naturally occurring river biofilms with changing seasons for the removal of the organophosphorus pesticide diazinon. Natural river biofilms from spring showed higher ability to remove diazinon (99.9% removal) than those from winter (77%) with light exposure. In contrast to control sets without biofilms under irradiation, 27% of diazinon removal in spring and 22% in winter may result from microbial activity within biofilms. Removal of diazinon by river biofilms could be attributed mostly to degradation due to low sorption capacity of biofilms. Spring biofilms had higher dissipation rates (0.265 and 0.486 d À1 for biofilms with different growth periods) than winter ones (0.099 and 0.119 d À1 ) according to first order model. Higher ability of diazinon removal by spring biofilms may be explained by their higher bacterial and algal biomass comparing to winter biofilms. Naturally occurring river biofilms played a significant role in degradation of diazinon, particularly for those grown in spring. Their potential for use in the treatment of diazinon-contaminated water has been demonstrated.

show abstract

Section: Introductionmentioning

confidence: 99%

The Role of Naturally Occurring River Biofilms on the Degradation Kinetics of Diazinon

Tien¹,

Chuang²,

Chen³

2011

CLEAN Soil Air Water

View full text Add to dashboard Cite

show abstract

“…Therefore, the specific cultivation and input of CO 2 are more successful. However, open systems can be more efficient when using wastewater, and low energy costs are achieved for many microalgae species grown in effluents in open systems [33][34][35]. Because of the necessity for renewable energy and the constant search for efficient wastewater treatment systems at a low cost, the use of microalgae offers a system that combines wastewater bioremediation, CO 2 recovery, and biofuel production.…”

Section: Wastewater Microalgae Productionmentioning

confidence: 99%

Potential Production of Biofuel from Microalgae Biomass Produced in Wastewater

Schneider¹,

Bjerk²,

Gressler³

et al. 2012

Biodiesel - Feedstocks, Production and Applications

View full text Add to dashboard Cite

“…Current research indicates that algae have the potential to be able to accumulate trace metals released to the environment by biosorption and bioaccumulation processes. Wastewater could be used as microalgae nutrient and algal biomass could become, in the near future, an economic and effective material for selective recovery of heavy metals from communal and industrial wastewater or other sources (Munoz et al, 2009). According to the literature, microalgae growth is not inhibited in a medium containing NO x .…”

Section: Algae Potential For Removal Of Air Pollutantsmentioning

confidence: 99%

“…The ability of microalgae to attach to photobioreactors' walls constitutes an operational problem. Munoz et al (2009) evaluate the potential of flat plate and a tubular photobioreactor with a an algal-bacterial biofilm, using a Chlorella sorokiniana-Ralstonia basilensis consortium immobilized onto the reactor walls for the treatment of industrial wastewaters. According to these researchers, the biomass immobilization maintain a high microbial activity at all operating conditions, protecting cells from pollutant toxicity and producing an effluent containing easily settleable microbial flocks.…”

Section: Algae Cultivation Systemsmentioning

confidence: 99%