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About UNEP
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United Nations Environment Programme
Division of Technology, Industry and Economics
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Newsletter and Technical Publications
Freshwater Management Series No. 1

Biosolids Management: An Environmentally Sound Approach
for Managing Sewage Treatment Plant Sludge

An Introductory Guide To Decision-Makers


Treated sludge, known as biosolids, is widely produced in many countries. Once treated properly, sludge has important economic and environmental value due to its high concentration of organic nutrients, which make it valuable for use as fertiliser in agriculture or other practices. This booklet gives a general overview of the wastewater treatment process, as well as of the production of biosolids and their utilisation in agriculture. It should help decision-makers who are considering this environmentally sound technological approach to solving the problem of sludge disposal.

 

  Notes for the Reader
   

Biosolids Management

   

Some Basic Terms

   
  Wastewater Treatment: The Municipal Sludge Production Process
   

The Municipal Sludge-to-Biosolids Treatment Process

   
  Practices In Europe and North America
   

Addressing Public Concerns About the Land Application of Biosolids

   

A Range of Options for Biosolids Utilisation

   
  Establishing a new Biosolids Utilisatiion System: Challenges and Opportunites
   

The Ciudad Juarez, Mexico, Case Study

   
  A Planning Guide for Developing a Biosolids Utilisation System
   

Step One: Plan for the Basic Requirements

   

Step Two: Involve Stakeholders

   

Step Three: Establish Capacities

   

Step Four: Establish and Maintain Sustainable Systems and Practices

   
  The Future
 
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