PLANT CELL BIOTECHNOLOGY AND MOLECULAR BIOLOGY

TEST OF PURIFICATION OF RAW SEWAGE TO THE LABORATORY BY USING A MODEL PLANT: Phragmites australis

MANEL DRRADJI

Laboratory of Cellular Toxicology, Department of Biology, Faculty of Science, Badji Mokhtar University, B.P.12, Annaba, 23000, Algeria

LYNDA SOUIKI

Department of Biology, SNV-STU Faculty, University 8 Mai 1945, Guelma, 24000, Algeria

NEDJOUD GRARA *

Department of Biology, SNV-STU Faculty, University 8 Mai 1945, Guelma, 24000, Algeria

NADJIB HADDAD

Department of Biology, SNV-STU Faculty, University 8 Mai 1945, Guelma, 24000, Algeria

HOURIA BERREBBAH

Laboratory of Cellular Toxicology, Department of Biology, Faculty of Science, Badji Mokhtar University, B.P.12, Annaba, 23000, Algeria

MOHAMMED-REDA DJEBAR

Laboratory of Cellular Toxicology, Department of Biology, Faculty of Science, Badji Mokhtar University, B.P.12, Annaba, 23000, Algeria

*Author to whom correspondence should be addressed.

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Abstract

This work involves the implementation of a mini-system "Phragmifiltre" purification that uses the reed (Phragmites australis) as a model plant. Every tank is packed with two successive layers. The upper one is gravel having different particle size. The lower layer is sand. The reeds are implanted and irrigated with 20 liters of water worn gross reduced from the Water treatment plant the city of Guelma (Algeria). After 7 days of retention the water is drainedfor analysis physico-chemical and bacteriological. The results show effectiveness of the treatment system applied with the abatement rates: 88% for COD, 88.81% for BOD₅, 94.64% for TSS, 100% for NO₃^-, 76% for NH₄⁺ and 77.77% for PO₄^-3. Also, we raised an abatement of 100% of indicators of faecal contamination and pathogen.

Keywords: Phragmifiltre, purification, Phragmites australis, faecal contamination, pollution indicators

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