Document Detail


Nutrient Removal and Biomass Production in an Outdoor Pilot-Scale Phototrophic Biofilm Reactor for Effluent Polishing.
MedLine Citation:
PMID:  24081706     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
An innovative pilot-scale phototrophic biofilm reactor was evaluated over a 5-month period to determine its capacity to remove nitrogen and phosphorus from Dutch municipal wastewater effluents. The areal biomass production rate ranged between 2.7 and 4.5 g dry weight/m(2)/day. The areal nitrogen and phosphorus removal rates averaged 0.13 g N/m(2)/day and 0.023 g P/m(2)/day, which are low compared to removal rates achieved in laboratory biofilm reactors. Nutrient removal increased during the day, decreased with decreasing light intensity and no removal occurred during the night. Additional carbon dioxide supply was not requisite as the wastewater was comprised of enough inorganic carbon to sustain microalgal growth. The study was not conclusive for the limiting factor that caused the low nutrient removal rate, possibly the process was limited by light and temperature, in combination with pH increases above pH 9 during the daytime. This pilot-scale study demonstrated that the proposed phototrophic biofilm reactor is not a viable post-treatment of municipal wastewater effluents under Dutch climate conditions. However, the reactor performance may be improved when controlling the pH and the temperatures in the morning. With these adaptations, a phototrophic biofilm reactor could be feasible at lower latitudes with higher irradiance levels.
Authors:
N C Boelee; M Janssen; H Temmink; R Shrestha; C J N Buisman; R H Wijffels
Related Documents :
24859856 - Occurrence and distribution of polycyclic aromatic hydrocarbons in surface microlayer a...
25024156 - Photosynthetic characteristics of sonoran desert winter annuals.
23172396 - Optimization of an oil leaching process to reduce the level of dioxins and dioxin-like ...
25062936 - N2o emission from a combined ex-situ nitrification and in-situ denitrification bioreact...
19294126 - Glomus fasciculatum, a weak pathogen of heterodera glycines.
9324006 - Inhibitory effects of turkish folk remedies on inflammatory cytokines: interleukin-1alp...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-10-2
Journal Detail:
Title:  Applied biochemistry and biotechnology     Volume:  -     ISSN:  1559-0291     ISO Abbreviation:  Appl. Biochem. Biotechnol.     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8208561     Medline TA:  Appl Biochem Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900-CC, Leeuwarden, The Netherlands, nadine.boelee@wetsus.nl.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Narratives Can Motivate Environmental Action: The Whiskey Creek Ocean Acidification Story.
Next Document:  The L-Cell Isolation from Heterogonous Population of Intestinal Cell Line Using Antibiotic Selection...