COMPOSITION AND SPATIAL VARIATION OF SEWAGE CHARACTERISTICS IN MACEIÓ/AL
Keywords:
Diffuse Pollution, Sanitary effluents, water quality, SurveillanceAbstract
Consideration of the qualitative aspects of sanitary sewage through physical-chemical and microbiological analyzes are important for the functioning of sanitary sewage systems within adequate standards. It so happens that the coverage of the sewage network in Brazilian cities is still partial, implying irregular discharges of sewage into urban channels, which mix with runoff water. The city of Maceió/AL is recognized from a low region (lagunar and maritime coastal plain) and a high region (plateaus), and its coverage by sewage collection network is still expanding, currently reaching about 40% of the population. In this context, the aimed of this study was to qualitatively characterize the raw sewage in the sewage collection network and urban channels. Biweekly collections were made in a simple sample of raw sewage in the main drainage channels, collection network, from December 2021 to June 2022, and physical-chemical and microbiological analyses. The results showed that the sewage from the Upper Zone (UP) of the city, which reaches the ETEs Sewage Treatment Stations, where a low-income population predominates, present values of typical constituents of high concentration sewage, those from the Lower Zone (LZ), where the high-income population predominates, has a typical composition of medium-concentration sewage, possibly due to dilution due to the infiltration of the water table into the sewage network, while the urban channels have water with the characteristics of sewage. Sewage from upper-middle class neighborhoods showed a positive result for the virus in 100% of the analyzed time, the urban channel that drains a basin without collection network coverage showed a positive result in 60% of the time, while the others that drain basins with partial coverage of the collection network showed a positive result between 20% and 40% of the time.
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Revista de Gestão de Água da América Latina (Water Management Journal in Latin America)
This work is licensed under a Creative Commons Attribution 4.0 International License.
When sending the manuscript, notice that:
To be responsible for the other authors, when applicable, as co-responsible for the technical and scientific content of the article according to Article 5 of Brazilian Law N. 9610, regarding Copyright.
All statements published in the manuscript are the sole responsibility of the authors. However, all published material becomes the property of REGA, which reserves the copyright. Therefore, no material published in REGA may be reproduced without the written permission of REGA. All authors of articles submitted to REGA must sign a Copyright Transfer Agreement, which will take effect from the date of acceptance of the article. This term will be requested by REGA prior to the publication of the article. The author responsible for the article will receive, free of charge, the electronic record of the publication (in PDF format).
All articles published open access will be immediately and permanently free for everyone to read, download, copy and distribute. Permitted reuse is defined by your choice of one of the following user licenses:
Creative Commons Attribution (CC BY): lets others distribute and copy the article, to create extracts, abstracts, and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text or data mine the article, even for commercial purposes, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, and do not modify the article in such a way as to damage the author’s honor or reputation.
Author Rights
For open access publishing this journal uses an exclusive licensing agreement. Authors will retain copyright alongside scholarly usage rights and REGA will be granted publishing and distribution rights.
Author Self-Archiving Policy
This journal permits and encourages authors to post items submitted to the journal on personal websites and institutional or funder repositories after publication. The final published PDF version should be used and bibliographic details that credit the publication in this journal should be included.
