Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bioremediation

Bioremediation

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.

Methods of Sterilization II: Chemical Methods

Methods of Sterilization II: Chemical Methods

In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

Production of Organic Acids

Production of Organic Acids

Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...

Turbulent Flow: Problem Solving

Turbulent Flow: Problem Solving

Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...

You might also read

Related Articles

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

Sort by

Same author

CO<sub>2</sub>-Assisted Pyrolysis of Mn-Loaded Biomass for Syngas Generation and Periodate-Activating Biochar Production.

Environmental research·2026

Same author

Sustainable biodiesel production via thermally induced transesterification using meso-macroporous silica derived from marine diatom following fucoxanthin extraction.

Bioresource technology·2026

Same author

Improving streamflow predictions in data-scarce nested basins through residual transfer and post-processing.

Scientific reports·2026

Same author

Impact of waste-derived ethanol on growth and metabolic allocation in black soldier fly larvae: Implications for organic waste treatment.

Journal of environmental management·2026

Same author

Valorization of 3D printing filament waste into syngas via CO<sub>2</sub>-assisted pyrolysis.

Journal of environmental management·2026

Same author

Tracking carbon and nitrogen flow in black soldier fly larvae cultivation: Effects of feed carbohydrate-to-protein ratio.

Journal of environmental management·2025

Search research articles

Related Experiment Video

Updated: May 10, 2026

Transformation of Organic Household Leftovers into a Peat Substitute

Transformation of Organic Household Leftovers into a Peat Substitute

Published on: July 9, 2019

Thermo-chemical process with sewage sludge by using CO2.

Eilhann E Kwon¹, Haakrho Yi, Hyun-Han Kwon

¹Department of Environment and Energy, Sejong University, Seoul, Republic of South Korea.

Journal of Environmental Management

|June 25, 2013

Summary

This study explores using carbon dioxide (CO2) in sewage sludge pyrolysis and gasification to boost energy recovery. CO2 co-feeding significantly increases syngas production and reduces tar, enhancing thermal efficiency and environmental benefits.

Keywords:

CO(2) and pyrolysis Gasification Sewage sludge Thermo-chemical process

More Related Videos

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Published on: October 15, 2015

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry

Published on: April 26, 2024

Related Experiment Videos

Last Updated: May 10, 2026

Transformation of Organic Household Leftovers into a Peat Substitute

Transformation of Organic Household Leftovers into a Peat Substitute

Published on: July 9, 2019

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Published on: October 15, 2015

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry

Published on: April 26, 2024

Area of Science:

Chemical Engineering
Environmental Science
Energy Recovery

Background:

Sewage sludge presents a significant waste management challenge.
Valorization of sewage sludge is crucial for sustainable resource management.
Thermo-chemical processes offer potential for energy and chemical recovery from sludge.

Purpose of the Study:

To investigate the impact of carbon dioxide (CO2) co-feeding on sewage sludge pyrolysis and gasification.
To enhance the thermal efficiency of sludge conversion processes.
To modify the end products, specifically increasing syngas (CO) yield and reducing tar.

Main Methods:

Experimental investigation of sewage sludge thermo-chemical conversion (pyrolysis and gasification).
Comparative analysis of processes under inert (N2) and CO2 co-feed atmospheres.
Temperature range studied: 600-900 °C.
Analysis of gaseous products (CO, H2, hydrocarbons) and condensable products (tar).

Main Results:

CO2 co-feeding significantly enhanced carbon monoxide (CO) generation by approximately 200% compared to an inert atmosphere.
CO2 introduction led to a substantial reduction (30-40%) in condensable hydrocarbons (tar) via expedited thermal cracking.
Improved thermal efficiency was observed when utilizing CO2 as a chemical feedstock or reaction medium.

Conclusions:

Sewage sludge is a viable resource for energy recovery and chemical feedstock production.
CO2 co-feeding is an effective strategy to improve the efficiency and product profile of sludge pyrolysis and gasification.
This approach offers significant environmental benefits by converting waste into valuable products and reducing undesirable byproducts.