7th International Conference on Civil Engineering for Sustainable Development (ICCESD 2024), ISBN : 978-984-35-5704-9, 2024
Managing industrial wastewater is a significant environmental concern in the Uttara Economic Proc... more Managing industrial wastewater is a significant environmental concern in the Uttara Economic Processing Zone (UEPZ), located in the Nilphamari district of Bangladesh. The UEPZ accommodates a wide range of industrial activity, including but not limited to textiles, tanneries, and food processing. These industries are responsible, for producing an amount of wastewater, which is often released into the environment without treatment. This wastewater may contain pollutants, such as metals, harmful chemicals and organic waste. It's worth noting that the Uttara Export Processing Zone, a known area directly releases its industrial waste into a nearby pond. This practice carries the risk of contaminating groundwater, which is vital for the community. The main objective of this study is to evaluate whether regulatory guidelines for disposing of waste in this area are being followed and to determine if there are any negative effects, on the water quality of nearby drinking water reservoirs. During this inquiry, six samples were obtained from six separate locations. These locations included three samples each of industrial effluents and drinking water. The laboratory analysis of the industrial wastewater samples 1, 2, and 3 yielded the following range of parameters: pH=(6.60–7.20), Color=(860–1280) Pt-Co, Turbidity=(38–53) NTU, Hardness=(98–155) mg/l, TS=(530–850) mg/l, TDS=(390–670) mg/l, TSS=(140–310) mg/l, DO=(0.8–1.3) mg/l, BOD5=(48–60) mg/l, COD=(161–268) mg/l, Cl=(83–115) mg/l, Fe=(0.75–1.82) mg/l, Mn=(1.98–4.10) mg/l. Nevertheless, the presence of arsenic was not detected in the wastewater samples. The pH value of the industrial wastewater sample was within the allowed limit. The observed turbidity, hardness, TSS, BOD5, and COD values exceeded the acceptable thresholds. Dissolved oxygen (DO) was also below the required limit. The other parameters associated with wastewater were determined to be within acceptable limits. Upon analyzing the water quality index (WQI) of the drinking water samples, it was observed that sample 4 exhibits a WQI reading of 206.77, indicating its unsuitability for drinking purposes; sample 5 demonstrated a WQI reading of 89.29, signifying inferior water quality. Lastly, sample 6 displayed a WQI reading of 110.23, confirming its unsuitability for drinking. In general, the source of drinking water was deemed unsuitable for use as a potable water source.
7th International Conference on Civil Engineering for Sustainable Development (ICCESD 2024), ISBN : 978-984-35-5704-9, 2024
Managing industrial wastewater is a significant environmental concern in the Uttara Economic Proc... more Managing industrial wastewater is a significant environmental concern in the Uttara Economic Processing Zone (UEPZ), located in the Nilphamari district of Bangladesh. The UEPZ accommodates a wide range of industrial activity, including but not limited to textiles, tanneries, and food processing. These industries are responsible, for producing an amount of wastewater, which is often released into the environment without treatment. This wastewater may contain pollutants, such as metals, harmful chemicals and organic waste. It's worth noting that the Uttara Export Processing Zone, a known area directly releases its industrial waste into a nearby pond. This practice carries the risk of contaminating groundwater, which is vital for the community. The main objective of this study is to evaluate whether regulatory guidelines for disposing of waste in this area are being followed and to determine if there are any negative effects, on the water quality of nearby drinking water reservoirs. During this inquiry, six samples were obtained from six separate locations. These locations included three samples each of industrial effluents and drinking water. The laboratory analysis of the industrial wastewater samples 1, 2, and 3 yielded the following range of parameters: pH=(6.60–7.20), Color=(860–1280) Pt-Co, Turbidity=(38–53) NTU, Hardness=(98–155) mg/l, TS=(530–850) mg/l, TDS=(390–670) mg/l, TSS=(140–310) mg/l, DO=(0.8–1.3) mg/l, BOD5=(48–60) mg/l, COD=(161–268) mg/l, Cl=(83–115) mg/l, Fe=(0.75–1.82) mg/l, Mn=(1.98–4.10) mg/l. Nevertheless, the presence of arsenic was not detected in the wastewater samples. The pH value of the industrial wastewater sample was within the allowed limit. The observed turbidity, hardness, TSS, BOD5, and COD values exceeded the acceptable thresholds. Dissolved oxygen (DO) was also below the required limit. The other parameters associated with wastewater were determined to be within acceptable limits. Upon analyzing the water quality index (WQI) of the drinking water samples, it was observed that sample 4 exhibits a WQI reading of 206.77, indicating its unsuitability for drinking purposes; sample 5 demonstrated a WQI reading of 89.29, signifying inferior water quality. Lastly, sample 6 displayed a WQI reading of 110.23, confirming its unsuitability for drinking. In general, the source of drinking water was deemed unsuitable for use as a potable water source.
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