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

Biodeterioration01:28

Biodeterioration

54
Biodeterioration refers to the unwanted alteration of materials caused by microorganisms—especially fungi—which damage both organic substrates (paper, wood, textiles) and inorganic ones (stone, plaster, glass). Unlike abiotic decay, biodeterioration results from biological activity that produces physical disruption and chemical degradation.Physical deterioration occurs as fungal hyphae penetrate pores, cracks, and surface irregularities. Hyphal turgor pressure, thigmotropic growth...
54
Microbial Bioremediation of Plastics01:28

Microbial Bioremediation of Plastics

64
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
64
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

7.1K
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
7.1K
Soil Microbial Ecology01:29

Soil Microbial Ecology

43
Soil microbial ecology is defined by highly diverse, spatially structured communities that drive nutrient cycling, organic matter turnover, and overall ecosystem stability. Although a gram of soil can contain thousands of bacterial and archaeal taxa, the ecological processes they mediate are even more crucial for sustaining terrestrial life.Microhabitats and NichesSoil is a heterogeneous mixture of minerals, organic matter, water, and air. Microbes inhabit distinct microhabitats formed by...
43
What are Biogeochemical Cycles?00:54

What are Biogeochemical Cycles?

40.5K
The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
40.5K
Gravimetry: Inorganic And Organic Precipitating Agents00:49

Gravimetry: Inorganic And Organic Precipitating Agents

7.3K
In gravimetry, the precipitant is chosen carefully to obtain a pure solid that can be easily filtered. Common inorganic precipitants can be used to determine several cations and anions. In some cases, the formation of the same precipitate can be used to determine the cation and the anion. For example, the reaction of barium and chromate ions to give barium chromate is used to determine both barium and chromate. However, precipitates such as hydroxides, oxalates, and metal ammonium phosphates...
7.3K

You might also read

Related Articles

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

Sort by
Same author

Ammonia nitrogen recovery from biogas slurry via integrated electrochemical ammonia stripping with calcium-based absorption and its product application potential.

Bioresource technology·2026
Same author

Abrasive Materials for Semiconductor Chemical Mechanical Polishing: Composition, Performance, and Emerging Trends.

ACS applied materials & interfaces·2026
Same author

Artesunate protects against ischemic stroke through THBS2/CD36/TLR4 pathway.

International immunopharmacology·2026
Same author

Natural product 2-dihydroailanthone suppresses colorectal cancer via targeting integrin α3.

Acta biochimica et biophysica Sinica·2026
Same author

Sarcopenia-driven gene model as a clinically actionable prognostic signature for head and neck squamous cell carcinoma.

Translational cancer research·2026
Same author

Microscope-assisted percutaneous microchannel treatment of lumbar ligamentum flavum cyst: A case report.

Medicine·2025

Related Experiment Video

Updated: Mar 31, 2026

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
13:38

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Published on: May 10, 2013

31.7K

Integrating particle physical geometry into composting degradation kinetics.

Yongjiang Wang1, Ping Ai1

  • 1Huazhong Agricultural University, College of Engineering, 1 Shi-zi-shan Street, 430070 Wuhan, China.

Bioresource Technology
|November 2, 2015
PubMed
Summary

This study integrates compost particle geometry with degradation kinetics to model aerobic and anaerobic digestion. The model accounts for substrate transport and varying volumes within compost particles.

Keywords:
CompostingKineticsParticle geometrySolubility

More Related Videos

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

9.3K
Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal
07:22

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

4.4K

Related Experiment Videos

Last Updated: Mar 31, 2026

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
13:38

Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

Published on: May 10, 2013

31.7K
Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

9.3K
Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal
07:22

Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal

Published on: November 10, 2023

4.4K

Area of Science:

  • Environmental Science
  • Biochemical Engineering
  • Mathematical Modeling

Background:

  • Composting involves complex biological and chemical reactions within particles.
  • Existing models often simplify particle structure and substrate transport dynamics.
  • Understanding these processes is crucial for optimizing composting efficiency.

Purpose of the Study:

  • To develop a dynamic model integrating compost particle geometry with degradation kinetics.
  • To represent compost particles using geometric shapes (sphere and cube) with an anaerobic core.
  • To simulate substrate degradation and transport within a single compost particle.

Main Methods:

  • Modeled compost particles as a sphere within a circumscribing cube.
  • Introduced an inner sphere to represent the anaerobic zone.
  • Applied degradation kinetics for soluble and insoluble substrates.
  • Used Fick's law to model the transport of soluble substrates.

Main Results:

  • The integrated model successfully linked particle geometry to degradation kinetics.
  • It described variations in substrate volume under aerobic and anaerobic conditions.
  • Simulated substrate transport within the compost particle unit.

Conclusions:

  • Integrating geometry and kinetics provides a more dynamic approach to modeling composting.
  • The model can describe aerobic/anaerobic digestion and substrate transport within compost particles.
  • This approach enhances understanding of composting processes at a particle level.