Green liquor handling

In this process the dregs are separated from the green liquor. In turn, the dregs are washed and dewatered.

Valmet offers products that separate dregs from green liquor and increase the efficiency of the recausticizing process. The dregs handling encompasses systems that wash and dewater dregs efficiently with minimal or no mud consumption. Valmet has several green-liquor handling equipment alternatives, which all meet the primary aim, to reduce the dregs content. The products range from traditional clarifiers to high-rate clarifier, Valmet Green Liquor Clarifier and ultra-compact "all-in-one" Valmet Green Liquor Disc Filter.

Valmet Green Liquor Disc Filter

Green-liquor filtration and dregs dewatering are performed in the same machine. This means very high capacity in a single unit. The compact size of the OptiDisc GL filter requires minimum space. The machine features high availability and easy maintenance.

Valmet Green Liquor Clarifier

The high rate clarifier allows for a more compact footprint by improved internal distribution and effective use of polymer, while giving better process results than the traditional clarifier.

Recausticizing Mechanical Audit

Conducted by Valmet field service personal and will preferable be done in conjunction with shutdown but can also be done during operation.

Recausticizing Mechanical Services

Let Valmet become your service partner and take responsibility for the entire annual shutdown. With help of our causticizing service expertise the equipment performance will stay optimized and perform at its best.


Green liquor - Maintenance and shutdown services

RunMax - Recaust Filters

Improve availability and end-product quality via pre-maintenance audit.


Green liquor - Process and automation upgrades

Sector Alignment Tool

We offer an alignment tool for sectors in disc filters, enabling straighter sectors, providing improved capacity and availability.

Green Liquor Cooling System

Enables a more stable process, preventing the risk of boiling in the slaker, and improving the operation performance of the slaker and the white liquor plant.

Rebuild Kit OD

The newly designed one-piece center shaft features externally accessed stuffing boxes and plain bearings.

High dP Disc Kit

We offer a upgrade kit for our existing disc filter customers to improve their availability and capacity. The disc kit exists of new sectors, pull rod sector connectors and filter bags.

Green Liquor Clarifier G3 conversion

We offer a upgrade kit for existing green liquor clarifiers increase the capacity and performance in terms of flow and suspended solids.

Clarifier Rake Drive Kit

For improved supervision, control and reliability we are offering CRD kits to replace Dorr and Hedemora drives.




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