cod fractions changes during sewage treatment with constructed wetland

Clicks: 266
ID: 221598
2015
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Abstract
The purpose of the presented research work was to find out COD fractions in raw wastewater and during treatment with constructed wetland (CW) system. The tests were performed in CW system with average flow of about 4 m3/day. In raw wastewater the highest concentration of fraction in organic suspended solid easy biodegradable (XS – 250 mg O2/l) was observed. The same situation was with dissolved organic easy biodegradable matter (SS – 250 mg O2/l). Lower quantity of non-biodegradable fractions dissolved and in suspended solids were observed (SI – 27 mg O2/l, XI – 83.33 mg O2/l). More than 80% of total COD was as biodegradable fractions (SS + XS). After treatment with CW system the highest concentration was observed for dissolved non-biodegradable fraction (SI – 27 mg O2/l). Lower concentration was for biodegradable fraction in suspended solid (XS – 3.33 mg O2/l). More than 89% of total COD was in biological non-biodegradable fraction (SI + XI).
Reference Key
smyk2015journalcod Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Joanna Smyk;Katarzyna Ignatowicz
Journal cell journal
Year 2015
DOI
10.12911/22998993/2804
URL
http://www.journalssystem.com/jeeng/COD-FRACTIONS-CHANGES-DURING-SEWAGE-TREATMENT-WITH-CONSTRUCTED-WETLAND,2804,0,2.html
Keywords
cod sewage treatment sanitary engineeringenvironmental sciences

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