Next Article in Journal
World Heritage Protection and the Human Right to Development: Reconciling Competing or Complimentary Narratives Using a Human Rights-Based Approach (HRBA)?
Previous Article in Journal
Biofuels and Sustainable Transport: A Conceptual Discussion
Previous Article in Special Issue
Effect of Powdered Activated Carbon to Reduce Fouling in Membrane Bioreactors: A Sustainable Solution. Case Study
Article Menu

Export Article

Open AccessArticle
Sustainability 2013, 5(7), 3150-3158; doi:10.3390/su5073150

Composting Used as a Low Cost Method for Pathogen Elimination in Sewage Sludge in Mérida, Mexico

Faculty of Chemical Engineering, Autonomous University of Yucatán, Campus de Ciencias Exactas e Ingenierias, Periférico Nte. Km 33.5 Col. Chuburná de Hidalgo Inn, Mérida Yucatán, 97203, Mexico
Independent Researcher. Campus de Ciencias Exactas e Ingenierias, Periférico Nte, Km 33.5 Col. Chuburná de Hidalgo Inn, Mérida Yucatán 97203, Mexico
Authors to whom correspondence should be addressed.
Received: 13 March 2013 / Revised: 10 July 2013 / Accepted: 15 July 2013 / Published: 22 July 2013
(This article belongs to the Special Issue Sustainable Waste Management)
View Full-Text   |   Download PDF [567 KB, uploaded 24 February 2015]   |  


Spreading sewage sludge from municipal wastewater (MWW) treatment on land is still a common practice in developing countries. However, it is well known that sewage sludge without special treatment contains various pollutants, which are (re)introduced into the environment by sludge landspreading and which might in turn have harmful effects on the environment and human health. This is more dangerous in places like Merida, Mexico, where soil is calcareous with fractures along the ground and thin layers of humus. Consequently, any liquid and semisolid wastes have the potential of percolating to the subsurface and contaminate the aquifer. The main aim of this work was using composting as a low cost process to eliminate pathogens contained in sewage sludge from MWW treatment in order to use the final product for land spreading in a safe way for both environment and human health. Two piles for composting process at real scale were settled using a mixture of sewage sludge from municipal waste water and green waste. Composting was carried out by windrow process and it was monitored during four weeks. Concentration of helminth eggs, salmonella and faecal coliforms were measured twice a week to observe its behavior and, as a control process, Temperature, Moisture Content (MC), and pH were also measured. After 30 days of composting sludge from municipal waste water system, salmonella was eliminated by 99%, faecal coliforms by 96% and helminth eggs by 81%. After 3 months compost reached GI = 160%, so did not show any phytotoxicity to seeds. View Full-Text
Keywords: sewage sludge; composting; pathogens; waste water sewage sludge; composting; pathogens; waste water

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Cabañas-Vargas, D.D.; de los Ríos Ibarra, E.; Mena-Salas, J.P.; Escalante-Réndiz, D.Y.; Rojas-Herrera, R. Composting Used as a Low Cost Method for Pathogen Elimination in Sewage Sludge in Mérida, Mexico. Sustainability 2013, 5, 3150-3158.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top