Groundwater’s physicochemical and bacteriological assessment: Case study of well water in the region of Sedrata, North-East of Algeria

• Autorzy: Malek Amina , Kahoul Mohamed , Bouguerra Hamza

Identyfikatory

DOI

10.2478/jwld-2019-0032

Warianty tytułu

PL

Ocena fizykochemiczna i bakteriologiczna wód podziemnych: Studium przypadku wody studziennej w regionie Sedrata (północno-wschodnia Algieria)

• Języki publikacji: EN

Abstrakty

EN

Drinking water is a possible source of humans’ illness when it contains chemicals and microorganisms especially from anthropogenic activities. The water supply from groundwater remains very important in Algeria. To assess the quality of groundwater in the region of Sedrata, analyses were carried out on 26 wells belonging to two neighbouring areas: one urban and the other rural. A study of physicochemical parameters has focused on the measurement of in situ temperature, electrical conductivity, pH and turbidity. Then the following parameters were analysed: hardness, and the elements: Ca²⁺, Mg²⁺, SO₄^2–, PO₄^3–, Cl^–, NO₂^–, NO₃^–, NH₄⁺ as well as metal trace elements Fe²⁺, Mn²⁺, Al³⁺. The samples taken for the bacteriological study were filtered and introduced into growth medium for the research and enumeration of total germs, faecal coliforms, faecal streptococci and sulphite reducing Clostridium. As a result, the contamination of the studied waters is almost general. Some of the most important obtained values are ranging from 4.8 to 76 mg∙dm^–3 for nitrates, the recorded values for mesophilic germs vary from 1 to 1100 CFUs∙cm^–3. Agricultural activity and livestock products on the one hand and the use of fertilizers on the other hand are the main sources of physicochemical and bacteriological pollution. Contaminated wells should be treated as soon as possible to limit contamination before spreading in the deep aquifers. In the future, it will be necessary not only to assess the health risks related to the level of contamination of these waters, but also to proceed with their treatment before supplying them to consumers.

PL

Woda pitna jest potencjalnym źródłem chorób, kiedy zawiera substancje chemiczne i mikroorganizmy pochodzące z działalności człowieka. Zaopatrzenie w wodę ze źródeł podziemnych odgrywa dużą rolę w Algierii. Aby ocenić jakość wód gruntowych w regionie Sedrata, przeprowadzono analizy w 26 studniach znajdujących się w dwóch sąsiadujących ze sobą obszarach – miejskim i wiejskim. Badania czynników fizycznych i chemicznych obejmowały pomiar in situ temperatury, przewodnictwa elektrolitycznego, pH i mętności wody. Analizowano także twardość, stężenie Ca²⁺, Mg²⁺, SO₄^2–, PO₄^3–, Cl^–, NO₂^–, NO₃^–, NH₄⁺ i metali śladowych Fe^{2+, Mn2+}, Al³⁺. Próbki do badań bakteriologicznych sączono i wprowadzano na pożywkę w celu określenia stężenia całkowitej ilości mikroorganizmów, bakterii z grupy coli, fekalnych streptokoków i siarkowych bakterii Clostridium. Wyniki dowodzą, że zanieczyszczenie badanych wód jest powszechne. Spośród najbardziej znaczących wyników należy wymienić stężenie azotanów w zakresie od 4,8 do 76 mg∙dm^–3 i mezofilnych bakterii od 1 do 1100 jtk∙cm^–3. Rolnictwo, hodowla i chów zwierząt oraz stosowanie nawozów są głównymi źródłami fizycznego, chemicznego i bakteriologicznego zanieczyszczenia wód. Skażone studnie powinny być oczyszczane tak szybko, jak to możliwe, aby zapobiec rozprzestrzenianiu się zanieczyszczeń w całym poziomie wodonośnym. W przyszłości konieczna jest ocena ryzyka zdrowotnego w związku ze skażeniem wód, ale także ich uzdatnianie przed dostarczeniem tych wód do konsumentów.

Słowa kluczowe

EN

bacteriology; groundwater; physicochemistry; Sedrata; water quality

PL

bakteriologia; jakość wody; parametry fizykochemiczne; Sedrata; wody podziemne

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2019
• Tom: no. 41
• Strony: 91--100
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Malek Amina

• Badji Mokhtar University, Faculty of Science, Department of Biochemistry, Laboratory of Applied Biochemistry and Microbiology, BP 12, 23000 Annaba, Algeria

autor

Kahoul Mohamed

• Badji Mokhtar University, Faculty of Science, Department of Biochemistry, Laboratory of Applied Biochemistry and Microbiology, BP 12, 23000 Annaba, Algeria

autor

Bouguerra Hamza

• University Abou Bakr Belkaid, Faculty of Technology, Department of Hydraulic, Laboratory No 25, BP 119 Tlemcen,13000, Algeria

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).