Hindustan Petroleum Corporation Ltd. (HPCL) commands 20% market share of the Indian petroleum industry. It operates 2 major refineries, one in Mumbai of 5.5 MMTPA and the other in Vishakapatnam of capacity 7.5 MMTPA.

In order to comply with pollution control board’s proposed future liquid effluent norms and HPCL’s commitment to a greener environment, the company went in for a complete overhaul of its effluent handling facility. The project involved replacement of existing ETP-I & ETP-II with a new integrated ETP using latest technologies.

In November 2007, HDO was awarded the contract for an Integrated Effluent Treatment Plant (ETP) including all ISBL & OSBL jobs for HPCL’s Mahul refinery project in Maharashtra. The plant included:

• Non-metallic API Separators
• Tilted Plate Interceptor ( TPI)
• Dissolved Air Flotation (DAF)
• Sequential Batch Reactor (SBR)
• Membrane Bioreactor (MBR)
• Sludge Handling Equipment
• Chemical Dosing & Handling System
• Sludge Bioremidation
• Reverse Osmosis (RO) System
• Volatile Organic Control (VOC) System

Our scope of work included demolishing the old effluent treatment plant, providing a make shift effluent handling system and building a new integrated ETP utilizing the latest SBR, MBR and RO technologies.

The plant was successfully commissioned and handed over to the client in August 2009.

Accomplishments:

• Successful project implementation without any work disruption due to old ETP demolition
• First time non-metallic API separator used in any ETP plant in India
• First Integrated SBR, MBR and RO effluent treatment plant in India
• First VOC system for refinery ETP in India