Stepwise investigation of Kima drain industrial wastewater during the period October 1986‐October 1987

Abstract Effluent industrial wastewater samples of Egyptian Chemical Industries Company (Kima Company, at Aswan produces nitrate fertilizer) were collected from the source, middle and just before the drain‐Nile River interaction in the period October 1986‐October 1987. The wastewater samples were analysed for temperature (19–36 °C), dissolved oxygen(0.64–136 mg/L), pH(2.0–10.9), free CO2 (0.0–5.28 mg/L), carbonates(0.0–96mg/L), bicarbonates(0.0–456 mg/L), nitrates (2.0–2240 mg/L), nitrites(0.91–54.5 mg/L), sulphates(9.5–92.5 mg/L), chlorides(25–1777.5 mg/L), phosphates(0.0–9.76mg/L), calcium(15.23–384.7 mg/L), magnesium(9.24–252.9 mg/L), total hardness, TH(84–2000 mg/L), iron(0.0–0.96 mg/L), total organic matter, TOM(5.2–68 mg/L), and total dissolved solids, TDS (369–3701 mg/L). Standard deviation and statistical errors were in the range 0.123–4071.151 and 0.034–1129. 134, respectively. Statistical analysis of the database of the industrial wastewater effluents exhibits high, positive and significant corr...