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Comparative evaluation of piggery wastewater treatment in algal-bacterial photobioreactors under indoor and outdoor conditions

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Dec 2017 Spain Publisher:Elsevier BVJournal:Bioresource Technology, volume 245, pages 483-490 (issn: 0960-8524,

Authors: García, Dimas; Posadas, Esther; Grajeda, Carlos; Blanco, Saúl; Martínez-Páramo, Sonia; Acién, Gabriel; García-Encina, Pedro; +2 Authors

doi: 10.1016/j.biortech.2017.08.135

pmid: 28898848

handle: 10835/8392

Comparative evaluation of piggery wastewater treatment in algal-bacterial photobioreactors under indoor and outdoor conditions

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Abstract

This work evaluated the performance of four open algal-bacterial photobioreactors operated at ≈26days of hydraulic retention time during the treatment of 10 (×10) and 20 (×20) times diluted piggery wastewater (PWW) under indoor (I) and outdoor (O) conditions for four months. The removal efficiencies (REs) of organic matter, nutrients and zinc from PWW, along with the dynamics of biomass concentration and structure of algal-bacterial population were assessed. The highest TOC-RE, TP-RE and Zn-RE (94±1%, 100% and 83±2%, respectively) were achieved indoors in ×10 PWW, while the highest TN-RE (72±8%) was recorded outdoors in ×10 PWW. Chlorella vulgaris was the dominant species regardless of the ambient conditions and PWW dilution. Finally, DGGE-sequencing of the bacterial community revealed the occurrence of four phyla, Proteobacteria being the dominant phylum with 15 out of the 23 most intense bands.

Country

Spain

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Keywords

Photobioreactors, Bacteria, Microalgae, Biomass, Wastewater, Chlorella vulgaris

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	83
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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%