Synergistic integration of electrocoagulation and algal cultivation to treat liquid anaerobic digestion effluent and accumulate algal biomass

Zhiguo Liu, Yan Liu

Research output: Contribution to journalArticle

  • 5 Citations

Abstract

An integrated system of electrocoagulation and algal cultivation was developed to treat a high strength wastewater - anaerobic digestion liquid effluent for reclaimed water and value-added algal biomass production. The integrated system synergistically takes advantages of both electrocoagulation and algal cultivation to enhance the efficiencies of wastewater treatment. The electrocoagulation treated wastewater had low turbidity with better light penetration (108 NTU) to enable algal growth. The algal cultivation had high removal efficiencies of phosphorus (99.4%) and nitrogen (88.2%). The dissolved iron in the electrocoagulation treated wastewater enhanced lipid accumulation of the algae. The results present that total phosphorus and nitrogen in the reclaimed water were 0.78 g L-1 and 35.5 mg L-1 respectively, and the harvested algal biomass had 35% of lipid, 53% of protein, and 6.4% of carbohydrate. This study concluded a new route for agricultural wastewater treatment that turns wastewater from an environmental liability into a valuable asset.

LanguageEnglish (US)
Pages89-94
Number of pages6
JournalProcess Biochemistry
Volume51
Issue number1
DOIs
StatePublished - Jan 1 2016

Profile

Electrocoagulation
Anaerobic digestion
Waste Water
Biomass
Effluents
Digestion
Wastewater
Liquids
Wastewater treatment
Phosphorus
Lipids
Nitrogen
Water
Turbidity
Carbohydrates
Algae
Iron
Proteins
Light
Therapeutics

Keywords

  • Algal biomass
  • Anaerobic digestion liquid effluent
  • Chlorella vulgaris
  • Electrocoagulation
  • Nitrogen
  • Phosphorus

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

Cite this

@article{6979e828d996454187639b12a52a23e6,
title = "Synergistic integration of electrocoagulation and algal cultivation to treat liquid anaerobic digestion effluent and accumulate algal biomass",
abstract = "An integrated system of electrocoagulation and algal cultivation was developed to treat a high strength wastewater - anaerobic digestion liquid effluent for reclaimed water and value-added algal biomass production. The integrated system synergistically takes advantages of both electrocoagulation and algal cultivation to enhance the efficiencies of wastewater treatment. The electrocoagulation treated wastewater had low turbidity with better light penetration (108 NTU) to enable algal growth. The algal cultivation had high removal efficiencies of phosphorus (99.4{\%}) and nitrogen (88.2{\%}). The dissolved iron in the electrocoagulation treated wastewater enhanced lipid accumulation of the algae. The results present that total phosphorus and nitrogen in the reclaimed water were 0.78 g L-1 and 35.5 mg L-1 respectively, and the harvested algal biomass had 35{\%} of lipid, 53{\%} of protein, and 6.4{\%} of carbohydrate. This study concluded a new route for agricultural wastewater treatment that turns wastewater from an environmental liability into a valuable asset.",
keywords = "Algal biomass, Anaerobic digestion liquid effluent, Chlorella vulgaris, Electrocoagulation, Nitrogen, Phosphorus",
author = "Zhiguo Liu and Yan Liu",
year = "2016",
month = "1",
day = "1",
doi = "10.1016/j.procbio.2015.11.003",
language = "English (US)",
volume = "51",
pages = "89--94",
journal = "Process Biochemistry",
issn = "0032-9592",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Synergistic integration of electrocoagulation and algal cultivation to treat liquid anaerobic digestion effluent and accumulate algal biomass

AU - Liu,Zhiguo

AU - Liu,Yan

PY - 2016/1/1

Y1 - 2016/1/1

N2 - An integrated system of electrocoagulation and algal cultivation was developed to treat a high strength wastewater - anaerobic digestion liquid effluent for reclaimed water and value-added algal biomass production. The integrated system synergistically takes advantages of both electrocoagulation and algal cultivation to enhance the efficiencies of wastewater treatment. The electrocoagulation treated wastewater had low turbidity with better light penetration (108 NTU) to enable algal growth. The algal cultivation had high removal efficiencies of phosphorus (99.4%) and nitrogen (88.2%). The dissolved iron in the electrocoagulation treated wastewater enhanced lipid accumulation of the algae. The results present that total phosphorus and nitrogen in the reclaimed water were 0.78 g L-1 and 35.5 mg L-1 respectively, and the harvested algal biomass had 35% of lipid, 53% of protein, and 6.4% of carbohydrate. This study concluded a new route for agricultural wastewater treatment that turns wastewater from an environmental liability into a valuable asset.

AB - An integrated system of electrocoagulation and algal cultivation was developed to treat a high strength wastewater - anaerobic digestion liquid effluent for reclaimed water and value-added algal biomass production. The integrated system synergistically takes advantages of both electrocoagulation and algal cultivation to enhance the efficiencies of wastewater treatment. The electrocoagulation treated wastewater had low turbidity with better light penetration (108 NTU) to enable algal growth. The algal cultivation had high removal efficiencies of phosphorus (99.4%) and nitrogen (88.2%). The dissolved iron in the electrocoagulation treated wastewater enhanced lipid accumulation of the algae. The results present that total phosphorus and nitrogen in the reclaimed water were 0.78 g L-1 and 35.5 mg L-1 respectively, and the harvested algal biomass had 35% of lipid, 53% of protein, and 6.4% of carbohydrate. This study concluded a new route for agricultural wastewater treatment that turns wastewater from an environmental liability into a valuable asset.

KW - Algal biomass

KW - Anaerobic digestion liquid effluent

KW - Chlorella vulgaris

KW - Electrocoagulation

KW - Nitrogen

KW - Phosphorus

UR - http://www.scopus.com/inward/record.url?scp=84952636756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952636756&partnerID=8YFLogxK

U2 - 10.1016/j.procbio.2015.11.003

DO - 10.1016/j.procbio.2015.11.003

M3 - Article

VL - 51

SP - 89

EP - 94

JO - Process Biochemistry

T2 - Process Biochemistry

JF - Process Biochemistry

SN - 0032-9592

IS - 1

ER -