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 Concept Videos

Steps in the Modeling Process01:14

Steps in the Modeling Process

674
Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
674
Absorption of Nutrients01:19

Absorption of Nutrients

4.1K
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream.
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
4.1K
Molecular Models02:00

Molecular Models

43.7K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.7K
The Bohr Model02:18

The Bohr Model

80.9K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as the...
80.9K
Stereotype Content Model02:16

Stereotype Content Model

15.4K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
15.4K
Compartment Models: Two-Compartment Model01:20

Compartment Models: Two-Compartment Model

7.1K
The two-compartment model divides the body into central and peripheral compartments to account for varying blood perfusion rates among organs and tissues, affecting drug distribution. The central compartment includes blood and highly perfused tissues with rapid drug distribution, while the peripheral compartment contains tissues with slower drug distribution. After a single IV bolus dose, the drug concentration is high in plasma and low in tissues. The drug distribution between compartments...
7.1K

You might also read

Related Articles

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

Sort by
Same author

Electro-driven valorization of waste activated sludge into caprylate (C<sub>8</sub>) via syngas-ethanol synergy.

Bioresource technology·2026
Same author

Homoacetogenesis inhibition and electrode regulation strengthen an in situ hydrogen-retaining reducing environment for Fe<sup>3+</sup> reduction-driven vivianite formation.

Water research·2026
Same author

Recent Advances in Butyrate Production from Food Waste Fermentation: Key Functional Microbes, Habitat Engineering, and Future Challenges.

Journal of agricultural and food chemistry·2026
Same author

Intrinsic waste component synergy: calcium-rich eggshell waste modulates fungal-bacterial microbiome toward selectively medium-chain fatty acid production.

Bioresource technology·2026
Same author

Brief aerobic pretreatment for stabilizing long-term caproate production from food waste via fungi-bacteria chain-elongating consortia.

Bioresource technology·2026
Same author

Corrigendum to "Comparative evaluation of nitrogen and phosphorus cycling, microbial community development, and N<sub>2</sub>O emissions in aerobic granular sludge under different aeration strategies" [Bioresour. Technol. 448 (2026) 134257].

Bioresource technology·2026

Related Experiment Video

Updated: Feb 1, 2026

A Model of Chronic Nutrient Infusion in the Rat
08:18

A Model of Chronic Nutrient Infusion in the Rat

Published on: August 14, 2013

13.1K

Modelization of Nutrient Removal Processes at a Large WWTP Using a Modified ASM2d Model.

Jakub Drewnowski1, Jacek Makinia2, Lukasz Kopec3

  • 1Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland. jdrewnow@pg.edu.pl.

International Journal of Environmental Research and Public Health
|December 15, 2018
PubMed
Summary

A modified hydrolysis concept in the activated sludge model (ASM2d) was evaluated for enhanced biological nutrient removal (BNR). The novel model improved predictions of oxygen uptake and phosphate dynamics in wastewater treatment.

Keywords:
ASM2dOURbatch testsdenitrificationhydrolysisinternal C source

More Related Videos

Delivery of Modified mRNA in a Myocardial Infarction Mouse Model
06:03

Delivery of Modified mRNA in a Myocardial Infarction Mouse Model

Published on: June 11, 2020

9.7K
Use of a Central Venous Line for Fluids, Drugs and Nutrient Administration in a Mouse Model of Critical Illness
09:17

Use of a Central Venous Line for Fluids, Drugs and Nutrient Administration in a Mouse Model of Critical Illness

Published on: May 2, 2017

9.4K

Related Experiment Videos

Last Updated: Feb 1, 2026

A Model of Chronic Nutrient Infusion in the Rat
08:18

A Model of Chronic Nutrient Infusion in the Rat

Published on: August 14, 2013

13.1K
Delivery of Modified mRNA in a Myocardial Infarction Mouse Model
06:03

Delivery of Modified mRNA in a Myocardial Infarction Mouse Model

Published on: June 11, 2020

9.7K
Use of a Central Venous Line for Fluids, Drugs and Nutrient Administration in a Mouse Model of Critical Illness
09:17

Use of a Central Venous Line for Fluids, Drugs and Nutrient Administration in a Mouse Model of Critical Illness

Published on: May 2, 2017

9.4K

Area of Science:

  • Environmental Engineering
  • Biotechnology
  • Water Treatment

Background:

  • Biodegradation of particulate substrates initiates with hydrolysis, a slow, rate-limiting step in organic matter decomposition.
  • Accurate modeling of hydrolysis is crucial for optimizing enhanced biological nutrient removal (BNR) processes.
  • Existing models like ASM2d may not fully capture the complexities of internal carbon source utilization in BNR.

Purpose of the Study:

  • To evaluate a novel hydrolysis concept integrated into the activated sludge model (ASM2d).
  • To compare the predictive accuracy of the modified ASM2d model against the original ASM2d.
  • To assess the models' performance in predicting key processes at a full-scale BNR facility.

Main Methods:

  • Development of a modified hydrolysis concept for the ASM2d.
  • Comparison of the modified ASM2d with the original ASM2d using data from a full-scale wastewater treatment plant.
  • Evaluation of prediction accuracy for chemical oxygen demand (COD), nitrogen species (NH₄-N, NO₃-N), phosphate (PO₄-P), oxygen uptake rate (OUR), and phosphate release/uptake rates.

Main Results:

  • Both models showed similar predictions for COD, NH₄-N, NO₃-N, and PO₄-P.
  • The modified ASM2d model demonstrated superior accuracy in predicting oxygen uptake rate (OUR), with improvements up to 5.6% and 5.7%.
  • The modified model also provided better predictions for phosphate release and uptake rates.

Conclusions:

  • The novel hydrolysis concept within ASM2d offers enhanced predictive capabilities for BNR processes.
  • The modified model shows significant improvements in simulating oxygen consumption and phosphorus dynamics.
  • This enhanced model can aid in optimizing the operation of full-scale enhanced biological nutrient removal facilities.