Oil and gas industry

Filtration of drainage water from tank farms

Filtration of drainage water

Petrochemical plants contain a large number of tanks for storing various raw materials and finished products. These tanks must be equipped with a drainage system in case of a leak.

The collected rainwater is drained off and, after appropriate filtration, reused in production as a cooling and process fluid.

High investment costs and the large amount of space required by filtration systems.

Sand filter systems are typically used for filtration; these feature complex automation with a large number of automatic valves for backwashing, air flushing, air-water flushing, reject discharge, etc. In addition, such filter systems are completely shut off during backwashing. A significant investment and high space requirements are major disadvantages of industrial sand filter systems.

Space-saving, enclosed filtration system.

The use of a closed, fully automatic backwash filter system minimizes space requirements thanks to its compact, efficient design and sustainably reduces operating costs—not only by lowering capital expenditures but also by minimizing manual labor. At the same time, the system meets the highest standards for filter fineness and flow rate.

The solution: LENZING OptiFil

This space-saving, closed-loop system ensures ultra-fine filtration of drainage water for reuse as process and cooling water.

< 30 µmFilter fineness
100 m³/hThroughput
space savingsystem design

Process diagram of a LENZING OptiFil installation in the filtration process

Advantages LENZING OptiFil

Advantages of using the LENZING OptiFil system

High filter fineness

The use of precision fabrics ensures high product quality.

Efficient backwash

A patented backwash mechanism enables continuous operation for several months.

System performance

The closed system, combined with long filter service life, enables a high degree of automation and reduces manual intervention to a minimum.

Space saving design

The compact design allows for installation in very tight spaces without compromising performance.

LENZING OptiFil

The LENZING OptiFil system is a reliable backwash filter for the finest filtration of industrial fluids and in water treatment. Its patented backwash system enables maximum process continuity with minimum backwash quantities.

High backwash efficiency (patented)

Filter fineness down to 1 μm

Very high throughput rates

Completely closed system

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