Simple model of dissolved oxygen consumption in a bay within high organic loading : An applied remediation tool
In: Environmental monitoring and assessment, Jg. 118 (2006), Heft 1-3, S. 179-193
Online
academicJournal
- print, 1 p.1/4
Zugriff:
San Vicente Bay is a coastal shallow embayment in Central Chile with multiple uses, one of which is receiving wastewater from industrial fisheries, steel mill effluents, and domestic sewage. A simulation model was developed and applied to dissolved oxygen consumption by organic residues released into this embayment. Three compartments were established as function of: depth, circulation and outfall location. The model compartments had different volumes, and their oxygen saturation value was used as baseline. The parameters: (a) BOD5 of the industrial and urban effluents, (b) oxygen demand by organic sediments, (c) respiration, (d) photosynthesis and (e) re-aeration were included in the model. Iteration results of the model showed severe alterations in Compartment 1, with adecrease of 65% in the oxygen below saturation. Compartment 2 showed a small decline (10%) and compartment 3 did not show apparent changes in oxygen values. Measures recommended for remediation were to decrease the BOD5 loading by 30% in the affected sector. Iteration of the model for 200 h following recommendations derived from the preceding results produced an increase in saturation of 60% (5 ml O2 L-1), which suggested an improvement of the environmental conditions.
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Simple model of dissolved oxygen consumption in a bay within high organic loading : An applied remediation tool
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Autor/in / Beteiligte Person: | AHUMADA, Ramon ; VARGAS, José ; PAGLIERO, Liliana |
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Zeitschrift: | Environmental monitoring and assessment, Jg. 118 (2006), Heft 1-3, S. 179-193 |
Veröffentlichung: | Dordrect: Springer, 2006 |
Medientyp: | academicJournal |
Umfang: | print, 1 p.1/4 |
ISSN: | 0167-6369 (print) |
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