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Minimizing land requirement and evaporation in small wastewater treatment systems [An article from: Ecological Engineering]
Book Details
PublisherElsevier
ISBN / ASINB000RR5ZXI
ISBN-13978B000RR5ZX7
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Ecological Engineering, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Water supplies in the Middle East arid climate are a scarce commodity making treated wastewater an economically attractive source for increasing the limited existing water resources for agricultural purposes. In order to minimize water losses with the corresponding increased salinity and to reduce land demand, an integrated system based mainly on high-rate semi-intensive treatment units is being tested and demonstrated. The units include an upflow anaerobic sludge blanket (UASB) reactor and vertical and horizontal flow wetlands. The units are characterized by simple and low-cost maintenance with minimal energy input. Three years of pilot plant results from the combined system are presented in this paper. The results show a high organic removal rate for the combined system: 140g COD/m^2/day for the scheme, which included a UASB reactor followed by two PAVB units and subsurface horizontal flow CW. Even higher rates of 900g COD/m^2/day were achieved for the same scheme by replacing the final CWL with another PAVB unit. These high rates allow for a small treatment plant footprint equivalent to 0.13-0.9m^2 per person, assuming 125g COD per person per day.
Description:
Water supplies in the Middle East arid climate are a scarce commodity making treated wastewater an economically attractive source for increasing the limited existing water resources for agricultural purposes. In order to minimize water losses with the corresponding increased salinity and to reduce land demand, an integrated system based mainly on high-rate semi-intensive treatment units is being tested and demonstrated. The units include an upflow anaerobic sludge blanket (UASB) reactor and vertical and horizontal flow wetlands. The units are characterized by simple and low-cost maintenance with minimal energy input. Three years of pilot plant results from the combined system are presented in this paper. The results show a high organic removal rate for the combined system: 140g COD/m^2/day for the scheme, which included a UASB reactor followed by two PAVB units and subsurface horizontal flow CW. Even higher rates of 900g COD/m^2/day were achieved for the same scheme by replacing the final CWL with another PAVB unit. These high rates allow for a small treatment plant footprint equivalent to 0.13-0.9m^2 per person, assuming 125g COD per person per day.
