Integrated process for anaerobically digested swine manure treatment

Lu Wang, Min M Addy, Jie Liu, Caitlyn Nekich, Renchuan Zhang, Peng Peng, Yanling Cheng, Kirk Cobb, Yuhuan Liu, Hualing Wang, R. R Ruan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An integrated three-step process was proposed for the treatment of the anaerobically digested swine manure (ADSM). The flocculation and struvite precipitation were used as the pre-treatment to remove the particles and reduce phosphorus to balance the condition for the algae growth. In the biological step, the 40% group (2.5× dilution) represented the optimal cultivation condition for the A + B co-cultivation, with the highest biomass concentration of 2.325 ± 0.16 g/L and performed well with nutrients removal (COD: 9770 ± 184 mg/L; TN: 235 ± 5.4 mg/L; TP: 25.3 ± 0.8 mg/L). 94.8% of the biomass from the 40% group could naturally settle down in 30 min which is good for harvest. The activated carbon adsorption was applied as the advanced treatment to resolve the issues with the dark color and residual compounds. After these processes, the removal efficiencies of COD, TN, TP and NH4-N reached 97.2%, 94.0%, 99.7% and 99.9%, respectively.

Original languageEnglish (US)
Pages (from-to)506-514
Number of pages9
JournalBioresource Technology
Volume273
DOIs
StatePublished - Feb 1 2019

Fingerprint

Manures
manure
Biomass
struvite
biomass
Flocculation
Algae
flocculation
Activated carbon
Phosphorus
Nutrients
Dilution
activated carbon
dilution
alga
phosphorus
Color
adsorption
Adsorption
removal

Keywords

  • Activated carbon adsorption
  • Algae and bacteria co-cultivation
  • Digested swine manure
  • Flocculation
  • Struvite precipitation

Cite this

Integrated process for anaerobically digested swine manure treatment. / Wang, Lu; Addy, Min M; Liu, Jie; Nekich, Caitlyn; Zhang, Renchuan; Peng, Peng; Cheng, Yanling; Cobb, Kirk; Liu, Yuhuan; Wang, Hualing; Ruan, R. R.

In: Bioresource Technology, Vol. 273, 01.02.2019, p. 506-514.

Research output: Contribution to journalArticle

Wang, Lu ; Addy, Min M ; Liu, Jie ; Nekich, Caitlyn ; Zhang, Renchuan ; Peng, Peng ; Cheng, Yanling ; Cobb, Kirk ; Liu, Yuhuan ; Wang, Hualing ; Ruan, R. R. / Integrated process for anaerobically digested swine manure treatment. In: Bioresource Technology. 2019 ; Vol. 273. pp. 506-514.
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AU - Cheng, Yanling

AU - Cobb, Kirk

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