Back to Search
Start Over
Potential for nutrient recovery and biogas production from blackwater, food waste and greywater in urban source control systems
- Source :
- Environmental technology. 36(13-16)
- Publication Year :
- 2015
-
Abstract
- In the last decades, the focus on waste and wastewater treatment systems has shifted towards increased recovery of energy and nutrients. Separation of urban food waste (FW) and domestic wastewaters using source control systems could aid this increase; however, their effect on overall sustainability is unknown. To obtain indicators for sustainability assessments, five urban systems for collection, transport, treatment and nutrient recovery from blackwater, greywater and FW were investigated using data from implementations in Sweden or northern Europe. The systems were evaluated against their potential for biogas production and nutrient recovery by the use of mass balances for organic material, nutrients and metals over the system components. The resulting indicators are presented in units suitable for use in future sustainability studies or life-cycle assessment of urban waste and wastewater systems. The indicators show that source control systems have the potential to increase biogas production by more than 70% compared with a conventional system and give a high recovery of phosphorus and nitrogen as biofertilizer. The total potential increase in gross energy equivalence for source control systems was 20-100%; the greatest increase shown is for vacuum-based systems.
- Subjects :
- Sewage
Industrial Waste
Garbage
Wastewater
Greywater
Waste Disposal, Fluid
Feedback
Water Purification
Biogas
Environmental Chemistry
Recycling
Cities
Waste Management and Disposal
Water Science and Technology
Blackwater
Waste management
business.industry
Environmental engineering
General Medicine
Equipment Design
Equipment Failure Analysis
Food waste
Food
Sustainability
Environmental science
Feasibility Studies
Sewage treatment
business
Methane
Water Pollutants, Chemical
Subjects
Details
- ISSN :
- 09593330
- Volume :
- 36
- Issue :
- 13-16
- Database :
- OpenAIRE
- Journal :
- Environmental technology
- Accession number :
- edsair.doi.dedup.....1fcc12dfa3a83f31ebddd189d6591838