Membrane-Based Oil–Water Separation System

Product Overview

The membrane-based oil–water separation system is an efficient solution designed for the treatment and reuse of oily wastewater.

Based on membrane separation technology, the system enables selective separation of oil, water, and suspended solids. It is suitable for a wide range of applications, including oilfield produced water, industrial oily wastewater, and cleaning effluents under complex operating conditions.

With its compact design, stable performance, and high level of automation, the system helps reduce treatment costs while enabling water reuse and compliant discharge.

Working Principle

The system utilizes the selective separation properties of membrane materials to achieve deep treatment of oily wastewater.

Through the microporous structure of ceramic membranes or carbon tube membranes, water molecules can pass through the membrane, while oil droplets, emulsified oil, and suspended particles are effectively retained, achieving efficient oil–water separation.

In operation, wastewater such as oilfield produced water, cold rolling oily wastewater, and degreasing solutions first enter an equalization unit to stabilize water quality. It then flows into the membrane system for fine filtration and separation.

After membrane treatment, oil content and suspended solids are significantly reduced. The treated water meets discharge or reuse standards, while oil components are effectively separated and recovered.

Key Features

• High separation efficiency: Effectively removes free oil, emulsified oil, and suspended solids
• Compact footprint: Space-saving design compared to conventional treatment systems
• Low operating cost: Reduced chemical consumption lowers overall treatment expenses
• High reuse efficiency: Suitable for recycling process liquids such as degreasing solutions, reducing freshwater consumption
• Easy operation and maintenance: Automated control ensures stable operation and convenient maintenance

Applications

• Oilfield produced water treatment: Meets water quality requirements for reinjection in high water-cut oilfields
• Cold rolling oily wastewater treatment: Suitable for the metal processing industry, ensuring compliant discharge
• Degreasing solution recycling: Enables recovery and reuse of cleaning liquids, reducing production costs
• Coking wastewater treatment: Treats oily wastewater from coking processes, minimizing environmental impact
• Food and catering wastewater: Handles oily wastewater to meet environmental discharge standards
• Ternary flooding produced water treatment: Suitable for complex oil recovery processes, improving water quality and ensuring system stability