Abstract
This study has been conducted during 2016, the samples were collected from discharge of General Company for Vegetable Oil Industry before and after treatment in Baghdad city. Some parameters were measured such as: Temperature, pH, Electrical Conductivity, Dissolve Oxygen and Phosphate, all reading before treatment are very high but the readings degreased rapidly after treatment. In contrast, oxygen concentration before treatment was low and elevated after treatment so much until reaches to the optimal condition for all biological and chemical properties. In this study 37 species of algal were recorded. The dominant group by the large number of species was Bacillarariophyce (24 species) followed by Cyanophycea (6species), Chlorophayce (5 species), Euglenophyceae (1species). This study shows that species recorded in the this studyeventually will stilted in Tigris river as a result of the discharge processing of this facility, therefore, some species can be found in Tigris river basin come from General Company for Vegetable Oil Industry.
Highlights
Tigris River is the biggest river in Iraq and the main source of water for Baghdad city [1], pollution of Tigris River may cause a direct pollution to Euphrates River and the related water sources since both rivers connected through Al Tharthar Lake [2]
In the present paper work, we try to investigate on the biological effect of Company for Vegetable Oil Industry on Tigris River, were this plant disgorged its effluent directly to the river
The result elucidate that’s wastes of the plant have a diverse species of algae
Summary
Tigris River is the biggest river in Iraq and the main source of water for Baghdad city [1], pollution of Tigris River may cause a direct pollution to Euphrates River and the related water sources since both rivers connected through Al Tharthar Lake [2]. A vital group of bacteria and plants in aquatic ecosystems and it's important components of biological monitoring programs for evaluating water quality. They are suited to water quality assessment because of their nutrient needs, rapid reproduction rate and short life cycle. Algae are valuable indicators of ecosystem conditions because they respond quickly both in species composition and densities to a wide range of water conditions due to changes in water chemistry. Increase in water acidity due to acid-forming chemicals that influence Lake PH levels, as well as heavy metals discharged from industrial areas affect the composition of genera that are able to tolerate these conditions [3]. Algae are known to be good indicators of pollution of many types for the following reasons: (i) Algae have wide temporal and spatial distribution (ii) many algal species are available
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