Biological nitrification in the presence of sulfide and organic matter: Effect of zeolite on the process in a batch system

C. Huiliñir, R. Medina, S. Montalvo, A. Castillo, L. Guerrero

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Even though the nitrification process is inhibited in the presence of sulfide and organic matter, few efforts have been reported to overcome this weakness. The present work has the goal of determining the effect of zeolite (2.5, 5, 10 and 15g L-1) as an improver of the nitrification process in the presence of sulfide and organic matter in a batch system. RESULTS: The inhibitory effect of both sulfide and organic matter on the nitrification process was decreased by 53% when using zeolite, with the best results at a zeolite concentration of 15g L-1. No total ammonia nitrogen (TAN) adsorption on the zeolite was observed under these conditions, with TAN removal taking place mainly by biological oxidation. Specific nitrate production rate increased by 37.73% compared with the control. Sulfide was oxidized chemically in all the assays, with sulfate as the main product, while COD reduction and VSS production were not affected by zeolite. CONCLUSIONS: Zeolite can be used to improve nitrification in batch systems in the presence of sulfur and organic matter, obtaining a faster TAN removal rate and higher specific nitrate production compared with the controls. © 2018 Society of Chemical Industry.
LanguageEnglish
JournalJournal of chemical technology and biotechnology
DOIs
Publication statusPublished - 2018

Fingerprint

Nitrification
Biological materials
Ammonia
Nitrogen removal
Nitrates
Assays
Sulfur
Nitrogen
Adsorption
Oxidation
Sulfides

Keywords

  • Nitrification
  • Toxicity
  • Waste-water
  • Zeolite
  • Biogeochemistry
  • Biological materials
  • Chemical oxygen demand
  • Nitrates
  • Nitrogen removal
  • Organic compounds
  • Sulfur compounds
  • Wastewater
  • Zeolites
  • Batch systems
  • Biological nitrification
  • Biological oxidations
  • COD reduction
  • Inhibitory effect
  • Nitrate production
  • Nitrification process
  • Total ammonia nitrogens

Cite this

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title = "Biological nitrification in the presence of sulfide and organic matter: Effect of zeolite on the process in a batch system",
abstract = "BACKGROUND: Even though the nitrification process is inhibited in the presence of sulfide and organic matter, few efforts have been reported to overcome this weakness. The present work has the goal of determining the effect of zeolite (2.5, 5, 10 and 15g L-1) as an improver of the nitrification process in the presence of sulfide and organic matter in a batch system. RESULTS: The inhibitory effect of both sulfide and organic matter on the nitrification process was decreased by 53{\%} when using zeolite, with the best results at a zeolite concentration of 15g L-1. No total ammonia nitrogen (TAN) adsorption on the zeolite was observed under these conditions, with TAN removal taking place mainly by biological oxidation. Specific nitrate production rate increased by 37.73{\%} compared with the control. Sulfide was oxidized chemically in all the assays, with sulfate as the main product, while COD reduction and VSS production were not affected by zeolite. CONCLUSIONS: Zeolite can be used to improve nitrification in batch systems in the presence of sulfur and organic matter, obtaining a faster TAN removal rate and higher specific nitrate production compared with the controls. {\circledC} 2018 Society of Chemical Industry.",
keywords = "Nitrification, Toxicity, Waste-water, Zeolite, Biogeochemistry, Biological materials, Chemical oxygen demand, Nitrates, Nitrogen removal, Organic compounds, Sulfur compounds, Wastewater, Zeolites, Batch systems, Biological nitrification, Biological oxidations, COD reduction, Inhibitory effect, Nitrate production, Nitrification process, Total ammonia nitrogens",
author = "C. Huili{\~n}ir and R. Medina and S. Montalvo and A. Castillo and L. Guerrero",
note = "Export Date: 11 April 2018 Article in Press CODEN: JCTBD Correspondence Address: Huili{\~n}ir, C.email: cesar.huilinir@usach.cl",
year = "2018",
doi = "10.1002/jctb.5587",
language = "English",
journal = "Journal of chemical technology and biotechnology",
issn = "0142-0356",
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TY - JOUR

T1 - Biological nitrification in the presence of sulfide and organic matter: Effect of zeolite on the process in a batch system

AU - Huiliñir, C.

AU - Medina, R.

AU - Montalvo, S.

AU - Castillo, A.

AU - Guerrero, L.

N1 - Export Date: 11 April 2018 Article in Press CODEN: JCTBD Correspondence Address: Huiliñir, C.email: cesar.huilinir@usach.cl

PY - 2018

Y1 - 2018

N2 - BACKGROUND: Even though the nitrification process is inhibited in the presence of sulfide and organic matter, few efforts have been reported to overcome this weakness. The present work has the goal of determining the effect of zeolite (2.5, 5, 10 and 15g L-1) as an improver of the nitrification process in the presence of sulfide and organic matter in a batch system. RESULTS: The inhibitory effect of both sulfide and organic matter on the nitrification process was decreased by 53% when using zeolite, with the best results at a zeolite concentration of 15g L-1. No total ammonia nitrogen (TAN) adsorption on the zeolite was observed under these conditions, with TAN removal taking place mainly by biological oxidation. Specific nitrate production rate increased by 37.73% compared with the control. Sulfide was oxidized chemically in all the assays, with sulfate as the main product, while COD reduction and VSS production were not affected by zeolite. CONCLUSIONS: Zeolite can be used to improve nitrification in batch systems in the presence of sulfur and organic matter, obtaining a faster TAN removal rate and higher specific nitrate production compared with the controls. © 2018 Society of Chemical Industry.

AB - BACKGROUND: Even though the nitrification process is inhibited in the presence of sulfide and organic matter, few efforts have been reported to overcome this weakness. The present work has the goal of determining the effect of zeolite (2.5, 5, 10 and 15g L-1) as an improver of the nitrification process in the presence of sulfide and organic matter in a batch system. RESULTS: The inhibitory effect of both sulfide and organic matter on the nitrification process was decreased by 53% when using zeolite, with the best results at a zeolite concentration of 15g L-1. No total ammonia nitrogen (TAN) adsorption on the zeolite was observed under these conditions, with TAN removal taking place mainly by biological oxidation. Specific nitrate production rate increased by 37.73% compared with the control. Sulfide was oxidized chemically in all the assays, with sulfate as the main product, while COD reduction and VSS production were not affected by zeolite. CONCLUSIONS: Zeolite can be used to improve nitrification in batch systems in the presence of sulfur and organic matter, obtaining a faster TAN removal rate and higher specific nitrate production compared with the controls. © 2018 Society of Chemical Industry.

KW - Nitrification

KW - Toxicity

KW - Waste-water

KW - Zeolite

KW - Biogeochemistry

KW - Biological materials

KW - Chemical oxygen demand

KW - Nitrates

KW - Nitrogen removal

KW - Organic compounds

KW - Sulfur compounds

KW - Wastewater

KW - Zeolites

KW - Batch systems

KW - Biological nitrification

KW - Biological oxidations

KW - COD reduction

KW - Inhibitory effect

KW - Nitrate production

KW - Nitrification process

KW - Total ammonia nitrogens

U2 - 10.1002/jctb.5587

DO - 10.1002/jctb.5587

M3 - Article

JO - Journal of chemical technology and biotechnology

T2 - Journal of chemical technology and biotechnology

JF - Journal of chemical technology and biotechnology

SN - 0142-0356

ER -