Heavy Metal Chemistry of Waste Water of Textile Dyeing Industries, Tongi, Gazipur, Bangladesh

Saima Hossain,Sudip Saha,A H.M Selim Reza,Md Aminul Ahsan

doi:10.14419/ijac.v8i2.31137

Abstract

The present research work shows the dominance of iron in the industrial waste water and river water samples of the investigated area of Gazipur district. The mean iron concentrations for both types of water samples are higher than the maximum permissible limits of WHO and NEQS. The excess amount of iron in water can cause health hazards of the human beings and ecosystem. Attempts should be taken to remove the excess amount of iron from the waters of the study area. On the basis of median concentration values of the heavy metals, they can be arranged as Fe>Zn>Ni>Cr>Pb. The factor analysis reveals the dominance of first two factors which comprise 83.298% of the total variance. The factor-1 is characterized by the contamination of Fe, Ni and Zn whereas factor-2 is dominated by the presence of Cu and Pb.Â

Highlights

Heavy metals are considered very harmful as they are non-biodegradable in nature, have long biological half-lives and their potential to accumulate in different body parts (Manaham 2005: Wilson and Pyatt 2007)
Concentrations of heavy metals in the environment occur due to continuous disposal of untreated industrial effluents generated during operational phase of industries
The concentrations of iron of the river water is higher than the industrial waste water samples of the investigated sites that reveals the influx of iron from different sources into the river water

Summary

Introduction

Heavy metals are considered very harmful as they are non-biodegradable in nature, have long biological half-lives and their potential to accumulate in different body parts (Manaham 2005: Wilson and Pyatt 2007). The management of effluent water is becoming increasingly difficult due to the presence of heavy metals (Zorpas et al 2008). Land utilization of sludge could represent a step forward to more suitable farming practices and municipal waste management. Achieving this purpose, it is pivotal to know the heavy metal content in textile without investigating toxic substances it is not feasible to use effluent water as a soil conditioner or fertilizer land. Tongi industrial area is located in the southern part of Gazipur Sadar. The location of geographical co-ordinates between 23 54 N to 23 56 N latitudes and 90 27 E to 90 29 E longitudes (Figure 1). The objectives of the present research work are to reduce the environmental impact during the treatment of waste water and control over the waste handling procedures to reduce the environmental impact and reduce the impact environmental pollution on human health

Methods

Results

Conclusion