Characterization of effluents of leather industries in Hazaribagh area of Dhaka city

Abstract

This study was conducted at leather industries of Hazaribagh, Dhaka to evaluate the tannery effluent quality. The samples of effluent were taken from seven leather industries and three places around the area of leather industries. The pH, Temperature, Colour, Odour, Electrical Conductivity (EC), Total Dissolved Solid (TDS), Cl-, NO2-, Alkalinity, Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), chromium ion (Cr3+), Suspended Solid (SS), phosphorous, sulphate (SO42-) were analyzed .The odour of the samples were more or less pungent. The colour of the samples was blackish blue, violet, brown, black etc. The values of pH, temperature, EC, alkalinity, DO, COD, BOD, Cl-, Cr3+, SS, TDS, NO2-, NO3-, phosphorous and SO42- of the samples were found in the range of 3.00-9.10, 26.4-30.27 oC , 897-1084 ?s/cm, 275-1410 mg/L, 0.34-4.10 mg/L, 510-2555 mg/L, 220-1010 mg/L, 820-1930 mg/L, 1.02- 20.32 mg/L, 1310-2010 mg/L, 2910-3740 mg/L, 0.74-3.15 mg/L, 6.31-23.49 mg/L, 7.45-9.35 mg/L and 125-510 mg/L respectively. DOI: http://dx.doi.org/10.3329/bjsir.v48i3.17324 Bangladesh J. Sci. Ind. Res. 48(3), 155-166, 2013

Assessment of Hexavalent Chromium Pollution in Buriganga and Dhaleshwari River Waterbodies Adjacent to Tannery Estates in Bangladesh

“…Leather industry is one of the key export sectors in Bangladesh. Currently, > 270 registered tanneries are operating in Bangladesh (Rouf et al, 2013;Blacksmith Institute and Green Cross Switzerland, 2013;Hashem et al, 2014). Majority tanneries are situated at Hazaribagh area, located one and a half kilometer northeast to the river Buriganga in Dhaka, as shown in Figure 1 (Shams et al, 2009).…”

Leather Industry in Bangladesh: A Systematic Literature Review

“…They also found that tannery creates the job opportunity. Rouf et al (2013) conducted a study at leather industries of Hazaribagh, Dhaka to evaluate the tannery effluent quality. The samples of effluent were taken from seven leather industries and three places around the area of leather industries.…”

“…They also found that tannery creates the job opportunity. Rouf 2013 "Characterization of effluents of leather industries in Hazaribagh area of Dhaka city"…”

Preparation of flower‐like Cu2O/ZnO for removal of dyes from aqueous medium

“…According to scientists, pH of wastewater from leather industry was in the range of 3-9. [21] These revealed that flower-like Cu2O/ZnO was relevant material for practical application in the removal of pigments from leather industry wastewater. In addition, the R 2 values in Table 4 indicated that the pseudo-second-order kinetic was more suitable for describing the adsorption kinetic of TA on Cu2O/ZnO than that of pseudo-first-order model.…”