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

Green Algae01:21

Green Algae

100
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
100
Anoxygenic Phototrophic Bacteria01:28

Anoxygenic Phototrophic Bacteria

116
Anoxygenic phototrophic bacteria are a diverse group of microorganisms that perform photosynthesis without producing oxygen. They primarily include purple sulfur bacteria, purple nonsulfur bacteria, green sulfur bacteria, and green nonsulfur bacteria. These bacteria are classified into the Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Chlorobi, and Chloroflexi lineages, each with distinct physiological and ecological adaptations.Purple sulfur bacteria belong to the...
116
Anoxygenic Photosynthesis01:30

Anoxygenic Photosynthesis

104
Anoxygenic photosynthesis is a phototrophic process that captures light energy to drive carbon fixation without producing molecular oxygen. Unlike oxygenic photosynthesis, which utilizes water as an electron donor and releases oxygen, anoxygenic phototrophs use alternative electron donors such as hydrogen sulfide (H₂S), elemental sulfur (S⁰), or thiosulfate (S₂O₃²⁻). This process is carried out by diverse groups of bacteria, including purple bacteria, green...
104
Bioremediation00:46

Bioremediation

19.8K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
19.8K
Other Algae01:19

Other Algae

73
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
73

You might also read

Related Articles

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

Sort by
Same author

Patterns of unfinished care among nursing assistants in long-term care homes in China: a latent class analysis.

BMJ open·2026
Same author

Dual carbon source driven metabolic coupling shapes microalgal-bacterial granular sludge stability.

Environmental research·2026
Same author

First water-to-ligand substitution dictates Co<sup>2+</sup>/Ni<sup>2+</sup> extraction selectivity.

Physical chemistry chemical physics : PCCP·2026
Same author

Correction: A novel nomogram for predicting early postoperative cerebral desaturation events after congenital heart surgery.

Frontiers in surgery·2026
Same author

Ultrahigh Resolution and Quantitative Analysis of Native Protein Assembly Intermediates by Multistack Conformation-Specific Electrophoresis.

Analytical chemistry·2026
Same author

Structure-Guided Development of Genotype-Specific Recombinant Antibodies for Rapid Norovirus Detection via Dual-Mode Immunoassays.

Analytical chemistry·2026

Related Experiment Video

Updated: Aug 26, 2025

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
08:13

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

17.2K

Auto-floating oxygenic microalgal-bacterial granular sludge.

Yuting Shi1, Bin Ji1, Xiaoyuan Zhang2

  • 1Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.

The Science of the Total Environment
|October 3, 2022
PubMed
Summary
This summary is machine-generated.

Microalgal-bacterial granular sludge (MBGS) can treat municipal wastewater outdoors. Photosynthesis causes auto-floating MBGS, which is feasible for real-world applications.

Keywords:
Light-limited weather conditionsMicroalgae phototaxisMunicipal wastewater treatmentOxygen bubbleSaturated oxygen concentration

More Related Videos

Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge
06:10

Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge

Published on: September 26, 2016

22.9K
Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
08:17

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

5.3K

Related Experiment Videos

Last Updated: Aug 26, 2025

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
08:13

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

17.2K
Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge
06:10

Extraction of Structural Extracellular Polymeric Substances from Aerobic Granular Sludge

Published on: September 26, 2016

22.9K
Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
08:17

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

5.3K

Area of Science:

  • Environmental Science
  • Biotechnology
  • Wastewater Treatment

Background:

  • Microalgal-bacterial granular sludge (MBGS) is a promising green technology for wastewater treatment.
  • Limited data exists on MBGS performance in real municipal wastewater under outdoor conditions.

Purpose of the Study:

  • To evaluate the behavior of MBGS in treating simulated and real municipal wastewater under natural diel conditions.
  • To investigate the auto-floating phenomenon of MBGS caused by microalgal photosynthesis.

Main Methods:

  • MBGS was tested with simulated and real municipal wastewater under outdoor diel conditions.
  • Oxygen bubble accumulation and its effect on MBGS settleability were analyzed.
  • Microalgal photosynthesis and phototaxis were studied in relation to bubble formation.

Main Results:

  • Significant oxygen bubble accumulation led to the auto-floating of MBGS.
  • Organics removal was stable, while nitrogen and phosphorus removal depended on dissolved oxygen levels (>10 mg/L).
  • Microalgal photosynthesis caused bubble attachment, leading to auto-flotation at light intensities as low as 140 μmol/m²/s.

Conclusions:

  • The auto-floating oxygenic MBGS process is feasible for municipal wastewater treatment, even in suboptimal weather.
  • This study advances the understanding and theoretical basis for applying MBGS in real-world wastewater treatment scenarios.