Studying the Physical and Chemical Properties of the Industrial Wastewater of the North Refineries Company-Beiji

Wissam Jassim Mohammed; Mwafaq Inhab Salih

doi:10.55544/jrasb.2.3.35

Authors

Wissam Jassim Mohammed Department of Biology, College of Education for Pure Sciences, University of Tikrit, IRAQ.
Mwafaq Inhab Salih Department of Biology, College of Education for Pure Sciences, University of Tikrit, IRAQ.

DOI:

https://doi.org/10.55544/jrasb.2.3.35

Keywords:

chemical properties, Physical properties

Abstract

Water is regarded as one of the most important natural resources on the surface of the globe, and its wrong use can turn it into a source of environmental pollution. So, it must be given attention. Thus, attention must be given to it. One of the most important ways to preserve the water environment and protect it from pollution is to treat polluted water in all its forms. Industrial wastewater is considered as one of the types of polluted water resulting from various human activities. Due to the significance of the water environment in the human health aspect, and the special attention given by the ministries and departments concerned in this regard, therefore, the current study was conducted on some physical and chemical properties of industrial wastewater of the North Refineries Company for a year and a seasonal system (January 1 to November 1, 2022). The results showed that the water temperatures ranged between (9.7-33.4 ºC). As for the turbidity, it ranged between (14.4-40.5 NTU), while the electrical conductivity ranged between (287.1 - 1644.6 μS/cm). It was found that most of the water in the studied stations was high in terms of suspended solids, which ranged between (1063 - 2588 mg/L) while the pH values ranged between (6.7 - 8.54). It was also observed that the dissolved oxygen values increased in most of the study stations, ranging between (1.31 - 23.4 mg/L). As for the values of the biological requirement for oxygen, it ranged between (9.3 – 9.4 mg/L). Depending on the values of the vital requirement for oxygen, the value was between (0.46 - 9.32 mg/L). Moreover, it was found that the total hardness was high in most of the study stations, with values ranging between (28.46 - 754.12 mg/L). The chloride ions in most of the studied stations were not within the permissible limits with values ranging between (63.77 - 1140.5 mg/L), while the phosphate values were between (0.23 - 1.62 mg/L). The organic carbon concentration TOC was recorded with values that ranged between (1.14 -62.7 mg/L), while the values of oil residues ranged between (0.84 -14.35 mg/L) during the study period.

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