Potential of resource recovery in UASB/trickling filter systems treating domestic sewage in developing countries
| Autor: | Carlos Augusto de Lemos Chernicharo, Guilherme Brugger Garcia, Emanuel Manfred Freire Brandt, Thiago Bressani-Ribeiro, C. a. Díaz, K. G. Gutierrez |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
Hot Temperature Environmental Engineering Sanitation Trickling filter Population Sewage 02 engineering and technology 010501 environmental sciences 01 natural sciences Bioreactors Waste Management 020401 chemical engineering Anaerobiosis 0204 chemical engineering education Developing Countries 0105 earth and related environmental sciences Water Science and Technology Resource recovery education.field_of_study Waste management business.industry Environmental engineering Waste Disposal Facilities Sewage treatment Electricity business Thermal energy |
| Zdroj: | Water Science and Technology. 75:1659-1666 |
| ISSN: | 1996-9732 0273-1223 |
| DOI: | 10.2166/wst.2017.038 |
| Popis: | This paper aims to present perspectives for energy (thermal and electric) and nutrient (N and S) recovery in domestic sewage treatment systems comprised of upflow anaerobic sludge blanket (UASB) reactors followed by sponge-bed trickling filters (SBTF) in developing countries. The resource recovery potential was characterized, taking into account 114 countries and a corresponding population of 968.9 million inhabitants living in the tropical world, which were grouped into three desired ranges in terms of cities’ size. For each of these clusters, a technological arrangement flow-sheet was proposed, depending on their technical and economic viability from our best experience. Considering the population living in cities over 100, 000 inhabitants, the potential of energy and nutrient recovery via the sewage treatment scheme would be sufficient to generate electricity for approximately 3.2 million residents, as well as thermal energy for drying purposes that could result in a 24% volume reduction of sludge to be transported and disposed of in landfills. The results show that UASB/SBTF systems can play a very important role in the sanitation and environmental sector towards more sustainable sewage treatment plants. |
| Databáze: | OpenAIRE |
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