Mulk Shahi, Azizullah Azizullah, Korai Abdul Latif, Khattak Muhammad Nasir Khan
Department of Zoology, Hazara University, Mansehra, Pakistan.
Environ Monit Assess. 2015 Feb;187(2):8. doi: 10.1007/s10661-014-4221-8. Epub 2015 Jan 24.
Industries play an important role in improving the living standard but at the same time cause several environmental problems. Therefore, it is necessary to evaluate the impact of industries on the quality of environment. In the present study, the impact of marble industry effluents on water and sediment quality of Barandu River in Buner District, Pakistan was evaluated. Water and sediment samples were collected at three different sampling sites (upstream, industrial, and downstream sites) from Barandu River and their physicochemical properties were inter-compared. In addition, different marble stones and mix water (wastewater) from marble industry were analyzed. The measured physicochemical parameters of river water including pH, electrical conductivity (EC), alkalinity, total hardness, Ca and Mg hardness, total dissolved solid (TDS), total suspended solids (TSS), sulfates (SO4 (2-)), sodium (Na(+)), potassium (K(+)), nitrites (NO2 (-)), nitrate (NO3 (-)), chloride (Cl(-)), calcium (Ca(2+)), and magnesium (Mg(2+)) were found to be significantly altered by effluent discharges of marble industries. Similarly, heavy metal concentrations in both water and sediments of the river were significantly increased by marble industry wastewater. It is concluded that large quantities of different pollutants are added to Barandu River due to direct disposal of marble industry effluents which degrades its quality. Therefore, it is recommended that direct disposal of marble industry wastewater should be banned and all effluents must be properly treated before discharging in the river water.
工业在提高生活水平方面发挥着重要作用，但同时也引发了一些环境问题。因此，评估工业对环境质量的影响很有必要。在本研究中，评估了巴基斯坦布内尔地区大理石工业废水对巴兰杜河水质和沉积物质量的影响。从巴兰杜河的三个不同采样点（上游、工业和下游站点）采集了水和沉积物样本，并对它们的理化性质进行了相互比较。此外，还分析了不同的大理石石块以及大理石工业的混合水（废水）。发现大理石工业废水排放显著改变了河水的测量理化参数，包括pH值、电导率（EC）、碱度、总硬度、钙和镁硬度、总溶解固体（TDS）、总悬浮固体（TSS）、硫酸盐（SO4 (2-)）、钠（Na(+)）、钾（K(+)）、亚硝酸盐（NO2 (-)）、硝酸盐（NO3 (-)）、氯化物（Cl(-)）、钙（Ca(2+)）和镁（Mg(2+)）。同样，大理石工业废水使河流的水和沉积物中的重金属浓度显著增加。得出的结论是，由于大理石工业废水的直接排放，大量不同污染物被排入巴兰杜河，导致其水质恶化。因此，建议禁止直接排放大理石工业废水，所有废水在排入河水之前必须进行妥善处理。
