Abstract:
Effluent treatment plants serve as vital necessities for both industrial operations
and the preservation of our environment. Their significance lies in their ability to
facilitate the safe discharge or reuse of wastewater. Our current project focuses on
a distinctive endeavor: designing a state-of-the-art water treatment and
groundwater recharge facility exclusively tailored for Attock Refinery Limited
(ARL). The primary objective of this facility is to adhere to the stringent standards
outlined in the Punjab Environmental Quality Standards (PEQS) for groundwater
discharge. A meticulously planned process comprising three crucial unit
operations has been devised to achieve this: pH control, BOD removal, and
membrane operation. In stark contrast to zero liquid discharge systems, which
entail the complete elimination of wastewater, our approach allows for
groundwater discharge. This approach grants a broader scope of water usage,
encompassing drinking purposes, irrigation for agricultural fields, and integration
into secondary processes within the refinery. Simultaneously, it ensures that
water disposal into natural water bodies remains within acceptable limits, thus
striking a balance between water conservation and maintaining a harmonious
ecological equilibrium.
