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King Oyster, Eryngii · 2019 · Research Support, Non U.S. Gov'T

High relevance

Adsorption Thermodynamics and Dynamics of Three Typical Dyes onto Bio-adsorbent Spent Substrate of Pleurotus eryngii.

Pleurotus eryngii

Gut & microbiomeLiver support
SpeciesKing Oyster, Eryngii
JournalInternational journal of environmental research and public health
Year2019

Key points

  • Dyeing wastewater is very hard to treat, and adsorption could be a good choice
  • Spent substrate of Pleurotus eryngii (SSPE) was first used to adsorb malachite green, safranine T and methylene blue from aqueous solutions, and the corresponding adsorption isotherm, thermodynamics and dynamics models were simulated
  • More than 93% of the dyes were removed with solutions with 100 mg/L of initial dye concentration, 1 g of SSPE and pH of 6.0 after adsorption for 4 h
  • Freundlich isotherm models fit better the adsorption data than Langmuir models
  • Adsorption of the dyes onto SSPE was a spontaneous exothermic process based on an adsorption thermodynamics model
  • SSPE could adsorb the dyes rapidly, and a second-order kinetics model fit better with the adsorption data than a pseudo first-order kinetics model

Metadata-grounded summary

Citation abstract

Dyeing wastewater is very hard to treat, and adsorption could be a good choice. Spent substrate of Pleurotus eryngii (SSPE) was first used to adsorb malachite green, safranine T and methylene blue from aqueous solutions, and the corresponding adsorption isotherm, thermodynamics and dynamics models were simulated. More than 93% of the dyes were removed with solutions with 100 mg/L of initial dye concentration, 1 g of SSPE and pH of 6.0 after adsorption for 4 h. Freundlich isotherm models fit better the adsorption data than Langmuir models. Adsorption of the dyes onto SSPE was a spontaneous exothermic process based on an adsorption thermodynamics model. SSPE could adsorb the dyes rapidly, and a second-order kinetics model fit better with the adsorption data than a pseudo first-order kinetics model. Accordingly, SSPE could be a good bio-adsorbent for the removal of malachite green, safranine T and methylene blue from the aqueous solution.

Citation

Wu J, Xia A, Chen C, Feng L, Su X, Wang X (2019). Adsorption Thermodynamics and Dynamics of Three Typical Dyes onto Bio-adsorbent Spent Substrate of Pleurotus eryngii. International journal of environmental research and public health https://doi.org/10.3390/ijerph16050679 PMID: 30813535

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