Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Study on biological nutrients removal in loop reactor].

Hai-guang Yang1, Shai-lin Chen, Fei Li

  • 1Department of Chemical Engineering, Tsinghua University, Beijing 100084, China. yhg00@mails.tsinghua.edu.cn

Huan Jing Ke Xue= Huanjing Kexue
|August 28, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Antiosteoporotic activity of echinacoside in ovariectomized rats.

Phytomedicine : international journal of phytotherapy and phytopharmacology·2013
Same author

Targeted Metabolomics of Serum Acylcarnitines Evaluates Hepatoprotective Effect of Wuzhi Tablet (Schisandra sphenanthera Extract) against Acute Acetaminophen Toxicity.

Evidence-based complementary and alternative medicine : eCAM·2013
Same author

Low molecular weight fucoidan against renal ischemia-reperfusion injury via inhibition of the MAPK signaling pathway.

PloS one·2013
Same author

Promoting the activity of catalysts for the oxidation of water with bridged dinuclear ruthenium complexes.

Angewandte Chemie (International ed. in English)·2013
Same author

Tunable green oxygen barrier through layer-by-layer self-assembly of chitosan and cellulose nanocrystals.

Carbohydrate polymers·2013
Same author

Gastrointestinal effects of resistant starch, soluble maize fibre and pullulan in healthy adults.

The British journal of nutrition·2013

Simultaneous nitrification and denitrification (SND) improved nutrient removal by optimizing carbon sources and dissolved oxygen (DO) levels. Ethanol and glycerol enhanced ammonium-nitrogen (NH4+-N) removal more effectively than glucose.

Area of Science:

  • Environmental Microbiology
  • Water Treatment Engineering
  • Biogeochemical Cycles

Context:

  • Simultaneous nitrification and denitrification (SND) is crucial for biological nutrient removal in wastewater treatment.
  • Optimizing carbon sources and dissolved oxygen (DO) levels are key factors influencing SND efficiency.
  • Previous studies have explored various carbon sources, but optimal conditions for SND require further investigation.

Purpose:

  • To investigate the impact of different carbon sources and addition methods on simultaneous nitrification and denitrification (SND).
  • To determine the optimal carbon-to-nitrogen ratio and dissolved oxygen (DO) levels for enhanced biological nutrient removal.
  • To compare the effectiveness of various carbon sources, including ethanol, glycerol, and glucose, in SND processes.

Summary:

Related Experiment Videos

  • The study utilized a loop reactor to examine biological nutrient removal through variations in carbon source and its addition.
  • Enhanced removal of ammonium-nitrogen (NH4+-N) was achieved with a carbon source concentration of COD 800 mg/L + 800 mg/L, resulting in outlet NH4+-N below 3 mg/L.
  • Lowering dissolved oxygen (DO) levels by using less reducible carbon sources, such as ethanol or glycerol, improved NH4+-N removal efficiency compared to glucose.

Impact:

  • Provides insights into optimizing SND processes for more efficient biological nutrient removal in wastewater treatment.
  • Identifies specific carbon sources (ethanol, glycerol) and operational conditions (lower DO) that enhance ammonium removal.
  • Contributes to the development of sustainable and cost-effective wastewater treatment technologies.