EFFICIENCY ASSESSMENT OF WASTEWATER TREATMENT PLANT: A CASE STUDY OF PATTOKI, DISTRICT KASUR, PAKISTAN
Journal Title: Earth Sciences Pakistan - Year 2019, Vol 3, Issue 2
Abstract
Pakistan being an agricultural country greatly depends on the water. Intense agriculture and ever-increasing population growth have created stress on the limited water resources of the country. Therefore, use of industrial discharge effluent and sewage water for irrigation is a common practice. Realizing the situation of safe disposal of wastewater in Pattoki to minimize the public risks of indiscriminate disposal of wastewater, Punjab government and Korea International Cooperation Agency (KOICA) constructed a wastewater treatment plant at Pattoki district Kasur. The purpose of this study is to check the efficiency of wastewater being treated by the treatment plant in compliance with the National Environmental Quality Standards (NEQS) and to check the efficiency of functional components of treatment plant. Water samples were collected from various points of the treatment plant in order to perform various onsite and laboratory test (DO, BOD5, COD, Chloride, TSS, and PH) to check the efficiency of the wastewater treatment plant. The results obtained for each water quality parameters (physical, chemical, and biological) were compared with National Environmental Quality Standards (NEQS). The recommended value of DO was greater than 2 mg/liter, BOD5, COD, Chlorides, TSS and PH by PEQS were less than 80 mg/liter, 150 mg/liter, 1000 mg/liter, 150 mg/liter and 6.5-9 respectively. The measured values of DO, BOD5, COD, Chlorides, TSS and PH were 0.3 mg/liter, 310 mg/liter, 48 mg/liter, 1760 mg/liter, 204 mg/liter and 8.3 respectively. The values of DO, BOD5 and TSS are not within PEQS recommended range. More facultative and anaerobic ponds should be constructed in order to treat total wastewater generated in Pattoki, as present plant is treating almost one fourth of total wastewater generated in Pattoki. Aerators should be provided at the aerobic ponds for improving the efficiency of wastewater treatment plant. Effluent from the treatment plant can be used for floriculture conjunctively with fresh water. Moreover, the concentration of physio-chemical parameters in the effluent also decreases after mixing the water available in drain. To some extent it also reduces the infiltration of dangerous components (as drain is not lined with concrete) present in wastewater that may contaminate the ground water or may have hazardous effects on quality of soil present in field. However, further studies are required to evaluate chemical parameters or heavy metals like arsenic, fluorides, chromium, zinc etc.
Authors and Affiliations
Hassan Amjad, Shanawar Hamid, Yasir Niaz, Muhammad Ashraf, Umair Yasir, Amna Chaudhary, Ali Arsalan, Mian Waqar Daud
Keywords
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- EP ID EP660679
- DOI 10.26480/esp.02.2019.01.04
- Views 98
- Downloads 0
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