Abstract
Reuse of sewage sludge as fertilizer in agricultural lands is frequently restricted by heavy metals enriched during wastewater treatment. This has led to increasing research on decontamination of metal-laden sewage sludge with the aim to prevent environmental pollution and health risks from heavy metals. Over the years, bioleaching has been developed as a cost-effective and environmentally friendly technology for the removal of heavy metals from sewage sludge. This chapter presents an overview on the fundamental principles involved in metal solubilization during sludge bioleaching and updates research concerned with this emerging area. The effects of a number of operational parameters including initial pH, temperature, aeration, leaching medium and substrate concentration, sludge solids content, and sludge-derived organic compounds on the process performance are reviewed.
| Original language | English |
|---|---|
| Title of host publication | Current Developments in Biotechnology and Bioengineering |
| Subtitle of host publication | Solid Waste Management |
| Publisher | Elsevier Inc. |
| Pages | 241-265 |
| Number of pages | 25 |
| ISBN (Electronic) | 9780444636751 |
| ISBN (Print) | 9780444636645 |
| DOIs | |
| Publication status | Published - 2017 |
Scopus Subject Areas
- General Biochemistry,Genetics and Molecular Biology
User-Defined Keywords
- Acidithiobacillus
- Heavy metal
- Land application
- Leaching
- Sewage sludge
