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

Biological Treatment of Effluent and Waste Water

Biological Treatment of Effluent and Waste Water

Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...

Microbial Wastewater Treatment

Microbial Wastewater Treatment

Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.

Microbial Bioremediation of Plastics

Microbial Bioremediation of Plastics

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...

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.

Microbial Fuel Cells

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...

You might also read

Related Articles

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

Sort by

Same author

Systems-Level Insights Into Microbial Naphthalene Biodegradation: An Integrated In Silico and Omics Perspective.

Environmental microbiology·2026

Same author

Sustainable water treatment: leveraging drinking water treatment sludge for enhanced water quality.

Environmental technology·2025

Same author

Comparative assessment of domestic wastewater treatment via Vermifiltration through various filter bed material.

Environmental science and pollution research international·2024

Same author

Perspectives and understanding on the occurrence, toxicity and abatement technologies of disinfection by-products in drinking water.

Journal of environmental management·2023

Same author

Ecological and health risk assessment associated with translocation of heavy metals in Lycopersicum esculentum from farmland soil treated with different composts.

Journal of environmental management·2023

Same author

Thermal pretreatment of Lantana camara for improved biogas production: Process parameter studies for energy evaluation.

Environmental research·2022

Search research articles

Related Experiment Video

Updated: Jul 4, 2026

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

Vermitechnology for sewage sludge recycling.

Meena Khwairakpam¹, Renu Bhargava

¹Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee-247667, India. meena.kh@gmail.com

Journal of Hazardous Materials

|June 3, 2008

Summary

Sewage sludge can be safely recycled into high-quality fertilizer using vermicomposting with earthworms. This process transforms waste, reduces pollutants, and enriches the compost with essential nutrients for agricultural reuse.

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

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Published on: July 18, 2025

Related Experiment Videos

Last Updated: Jul 4, 2026

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

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

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Published on: July 18, 2025

Area of Science:

Environmental Science
Soil Science
Waste Management

Background:

Sewage sludge (SS) poses disposal challenges.
Sustainable methods are needed for SS reuse and recycling.
Vermicomposting offers a potential solution for SS management.

Purpose of the Study:

To evaluate the safe reuse and recycling of sewage sludge (SS) through vermicomposting.
To assess the suitability of different earthworm species for SS composting.
To determine the quality of the end product (vermicompost).

Main Methods:

Utilized three earthworm species: Eisenia fetida, Eudrilus eugeniae, and Perionyx excavatus, individually and in combinations.
Composted sewage sludge directly without blending.
Analyzed key parameters of the vermicompost, including C/N ratio, TOC, EC, TN, K, Ca, Na, TP, and heavy metals.

Main Results:

Vermicomposting effectively reduced the C/N ratio from 25.6 to 6-9 and TOC by 25%.
Significant increases were observed in electrical conductivity (47-51%), total nitrogen (2.4-2.8 times), potassium (45-71%), calcium (49-62%), sodium (62-82%), and total phosphorus (1.5-1.8 times).
Heavy metal concentrations (Cu, Mn, Pb, Zn) in the vermicompost were within permissible limits, indicating safety for agricultural application.

Conclusions:

Sewage sludge can be directly converted into good quality fertilizer (vermicompost) using vermicomposting.
Vermicomposting improves the nutrient content and reduces pollutants in sewage sludge, making it a valuable fertilizer.
The application of vermicomposted sewage sludge in agricultural fields is safe and beneficial due to reduced heavy metal content and enhanced nutrient profile.