We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Utilization of urban sewage sludge: Chinese perspectives.
- Authors
Chen, H.; Yan, S-H.; Ye, Z-L.; Meng, H-J.; Zhu, Y-G.
- Abstract
Purpose: Urbanization and industrialization in China has resulted in a dramatic increase in the volume of wastewater and sewage sludge produced from wastewater treatment plants. Problems associated with sewage sludge have attracted increasing attention from the public and urban planners. How to manage sludge in an economically and environmentally acceptable manner is one of the critical issues that modern societies are facing. Methods: Sludge treatment systems consist of thickening, dewatering, and several different alternative main treatments (anaerobic digestion, aerobic digestion, drying, composting, and incineration). Agricultural application, landfill, and incineration are the principal disposal methods for sewage sludge in China. However, sewage sludge disposal in the future should focus on resource recovery, reducing environmental impacts and saving economic costs. Results: The reuse of biosolids in all scenarios can be environmentally beneficial and cost-effective. Anaerobic digestion followed by land application is the preferable options due to low economic and energy costs and material reuse. Conclusion: It is necessary to formulate a standard suitable for the utilization of sewage sludge in China.
- Subjects
CHINA; SEWAGE sludge; WASTE recycling; INDUSTRIALIZATION; SEWAGE disposal plants; URBANIZATION; REFUSE as fuel; COST effectiveness; ENVIRONMENTAL impact analysis
- Publication
Environmental Science & Pollution Research, 2012, Vol 19, Issue 5, p1454
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-012-0760-0