Journal Algérien des Régions Arides
Volume 14, Numéro 2, Pages 18-31
2022-07-03
The Efficiency Of Household Sewage Treatment By Wastewater Garden Technique In Arid Regions, Case Of Wwg Of Temacine, Algeria
Authors : Amiri Khaled . Bekkari Naçeur Eddine . Débbakh Abd Errezak . Chaib Warda . Kherifi Wahida .
Abstract
The objective of present research was to describe the performance of wastewater garden (WWG) of Temacine through physico-chemical analysis for the removal of organic matter and nutrients pollutants from water in two consecutive operating years (2012-2013). The WWG located in Touggourt was used as a first pilot plant in Algeria for a natural technology of wastewater treatment with horizontal flow, usually applied for the treatment of domestic waste-water in rural areas. This system demonstrated that average removal efficiencies were almost even higher than expected: more than 90% for biochemical oxygen demand (BOD5), chemical oxygen demand (COD) and total suspended solids (TSS). Mean decrease of nitrogen (NO2-N, NO3-N) and phosphorus (PO4-P) were 73, 76 and 80%, respectively. These results obtained from this pilot during the study period showed that WWG rejects purified water of satisfactory quality against objectives set for the removal efficiency of the elements responsible for the pollution.
Keywords
Wastewater treatment ; Constructed wetland ; Macrophytes ; water quality ; arid area
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