Bioremediation of Tannery Effluent and Lipid Production by Chlorella vulgaris (Beijerinck) Utex 2714

Description

– Bioremediation of Tannery Effluent and Lipid Production by Chlorella vulgaris (Beijerinck) Utex 2714 –

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Abstract

This study was aimed to assess the potential of Chlorella vulgaris UTEX 2714 to grow and bio-remediate tannery effluent.

Tannery effluent was collected from an effluent stream from Tanneries in Challawa Industrial Estate, Kano. The effluent was sterilised and inoculated with 10 % volume of algal inoculum.

Hydrogen potential, conductivity and total dissolved solids were determined using Hanna combo pH/EC meter HI 98129. Phosphate, sulphate, free chlorine and nitrate were determined using HACH DR 2400 spectrophotometer.

Standard methods were used to determine alkalinity, dissolved oxygen, biological oxygen demand and chemical oxygen demand titrimetrically.

Introduction

The environment is under increasing pressure from anthropogenic activities all over the world. In the quest to satisfy his needs and aspiration for better living conditions, man generates different kinds of waste that are discharged directly or indirectly into the environment (Ezike et al., 2012).

Tannery effluent is a by- product of the manufacturing and transformation of hides and skin to leather products. It constitutes an environmental concern as it increases the pollution status of rivers (Midha et al., 2008).

Tannery waste is generated in huge amounts during the process of tanning by leather industries throughout the world.

It is considered one of the most polluted industrial wastes and contains high amounts of metals which are very toxic to soil, plants and animals (Castilloss et al., 2007). Corporation/Municipal water treatment facilities in most of the developing countries, at present are not equipped to remove traces of heavy metals (Rajasulochana et al., 2009).

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