Assessment of Some Physico-chemical Parameters and Heavy Metals Level of an Ammonium-N Rich Industrial Effluent

Document Type : Research Article

Authors

Botany Department, Faculty of Science, Mansoura university, Egypt.

10.21608/mjb.2021.460091

Abstract

Industrial effluents are laden with high concentrations of ammonia-N and heavy metals, considered as an urgent problem in developing populated countries due to their difficulty of safe disposal. The objective of this investigation was to evaluate the seasonal variation in water quality of a wastewater receiving drain from Eldelta for fertilizers and chemical industries (EFCI) company using some physico-chemical parameters between Spring 2018–Winter 2019. The parameters included water temperature, pH, total dissolved salts(TDS), electric conductivity(EC) biological oxygen demand(BOD), chemical oxygen demand(COD), dissolved oxygen(DO), total alkalinity, NO2-N, NO3-N, NH4-N, dissolved reactive phosphorus(DRP), total dissolved phosphorus (TDP), chlorides and heavy metals (iron, zinc, copper, lead, nickel, cadmium and manganese). The results shown significant (P ≤ 0.05) increase in water pH (9.79± 0.01), NH4-N (185.76± 0.14 mg l-1), nitrate-N (1.95± 0.03 mg l-1), nitrite-N (2.93± 0.09 mg l-1), total alkalinity (1998.02± 0.03 mg CaCO3 l-1), dissolved oxygen (4.97±0.06 mg l-1), biological oxygen demand(18.05±0.02 mg l-1), chemical oxygen demand (18.9± 0.09 mg l-1), total dissolved salts(7.51±0.16 g l-1), EC(12.79±0.26 ms cm-1) and copper (0.339±0.002 mg l-1) in the winter, while DRP(0.39± 0.003 mg l-1), TDP (0.66± 0.002 mg l-1) and chlorides (3591.07±0.03 mg l-1) in summer. Thus, the high concentrations of chemical parameters investigated especially NH4-N and copper indicates the toxic state of the effluent discharged from (EFCI) company in winter season.  

Keywords

Mansoura Journal of Biology
Volume 51, Issue 2
June 2021
Pages 8-14

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