Industrial Pollution In Pakistan

1408 Words6 Pages
The demand for industrial establishment increases due to rapid increase in population. In order to fulfil human needs, man has overexploiting the available resources, which result in the pollution of water, air and land. Although industries play a major role in the economic growth of a nation but all around the world due to rapid industrialization, pollution increases including Pakistan. Industrial effluent is one of the major way through which pollutants enters into the biosphere.Physicochemicalparameters such as conductivity, pH, hardness, temperature, alkalinity, total soluble salts, cations (Ca, K, Mg and Na), nitrites, nitrates and chemical oxygen demand are much higher in the effluent discharge from the different industries [1].Toxic…show more content…
pH is referred to as a negative log of hydrogen ion concentration which is strongly influenced by variety of biological activities[8].The pH of water prescribed for wastewater by WHO is 6.5 to 8.5 [9]. In Faisalabad 12 samples were investigated to have a high pH value greater than 7 and only one sample FMC-1 have a low pH i.e. 5.82 (Figure 1). Highest pH was found in FMC-5 which was 10.42 and then in FMC-4 i.e. 9.02, shows the alkaline trend of wastewater. The pH value for wastewater is prescribed 6-8.5 by WHO (WHO,2006). The pH was above the permissible limits showing the presence of large amount of exchangeable hydroxide ions. This high pH was attributed to the different industries of Faisalabad especially the textile, detergents, pigments and dyes industries as they used sodium phosphate, different chemicals (NaOH, NaOCl), bleaching agents and surfactants in different industrial processes [10]which is the main reasons for such a high pH.While the low pH value (FMC-1, 5.82) in effluent from Faisalabad could be because of raw material (benzoic acid, yeast, lactic acid and enzymes that are mostly used in the food processing and dairy industry. Thus, the wastewater of Faisalabad is capable of destabilizing the fundamental properties of water such as hardness of water, metal solubility and alkalinity. The pHof nine wastewater samples of Sheikhupura appeared to lie between 6 to 8 in the…show more content…
1842 mg/l, FMC-1 i.e. 1126 mg/l while lowest value was recorded in the FMC-6 i.e. 870 mg/l. NEQS for total dissolved solids is 3500 mg/l. Over all wastewater samples of Faisalabad showed a high TDS. Physiochemical analysis of pharmaceutical industrial effluents was investigated and found TDS ranged between 2846-1308 mg/l results coincides with present investigation[14].While investigating the wastewater samples of Sheikhupura, TDS was recorded in SMC-1 and SMC-3 that was out of range. Whereas low TDS was observed in SMC-5 i.e. 366 mg/l (Figure 3).TDS of wastewater samples Gujranwala appeared to fluctuate between 651 in GMC-2 mg/l to 1090 in GMC-3 mg/l(Figure 3). Although all the samples of Gujranwala had the TDS value within the prescribed limit (NEQS) but this wastewater industrial effluent still require treatment if used for

More about Industrial Pollution In Pakistan

Open Document