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Flocculant test work & plant support

Flocculant Optimisation & Technical Support

Optimising flocculant performance through practical test work, technical expertise and plant support.
Marlyn combines a range of anionic, cationic and non-ionic polyacrylamide flocculants with laboratory testing and technical expertise to help you identify the most appropriate product and dosage for your process conditions.
30+ years
Supplying mining and water treatment chemicals
Full range
Anionic, cationic and non-ionic polyacrylamides
Lab to plant
Test work, plant trials and ongoing support
ISO 9001:2015
Certified quality management system
Why performance changes

Why Flocculant Performance Changes

Flocculant performance depends on both feed characteristics and plant operating conditions. Changes in ore source, mineralogy, particle size, solids concentration, water chemistry and throughput can all affect flocculation efficiency.
A product or dosage that performs well today may not remain optimal as conditions change.
What affects flocculation

Feed

  • Ore source
  • Mineralogy
  • Particle size
  • Solids concentration

Process

  • Water chemistry
  • Throughput
  • Operating conditions

Flocculant

  • Chemistry
  • Dosage
  • Preparation
Feed + Process + Flocculant = flocculation performance.
Laboratory flocculation testing

Our Approach

Marlyn conducts structured laboratory flocculation testing using representative process samples. Different flocculant chemistries and dosages are compared to identify the best practical balance between settlement performance, supernatant clarity and flocculant consumption.
Our test work includes:
01
Reviewing the process objective, current flocculant, dosage and operating conditions
02
Screening suitable flocculant chemistries against representative plant samples
03
Measuring settlement rate, final settled level, supernatant turbidity and dose-response
04
Benchmarking alternatives against the current flocculant
05
Establishing the lowest practical dosage that achieves the required performance
06
Providing recommendations for product selection, dosage and plant trials
What we measure
Settlement rate
How quickly the solids settle
Final settled level
How far the solids compact
Supernatant turbidity
How clear the water above the solids is
Dose-response
How performance changes with dosage
From lab to plant

From Laboratory Testing to Plant Optimisation

Laboratory testing provides a controlled way to identify the strongest product candidates and practical dosage range. These results provide the basis for controlled plant trials and further optimisation.
Stage 1

Laboratory testing

  • Screen flocculant chemistries on representative samples
  • Identify the strongest product candidates
  • Establish the practical dosage range
Stage 2

Plant trials and optimisation

During plant trials, these factors can be evaluated to translate laboratory results into practical plant performance:
Polymer preparation
Solution ageing
Dilution water
Injection point
Mixing
Throughput
Thickener operating conditions

Is your current flocculant delivering the performance you need?

Let Marlyn assess your current product, dosage and process conditions to identify optimisation opportunities.
Measuring cylinder showing settled solids and clear supernatant after flocculant dosingLaboratory technician preparing a measured flocculant dose from a labelled sample bottle
The potential benefits

The Potential Benefits

An optimised flocculant programme can help deliver:
  • Faster and more consistent settling
  • Improved overflow and return-water clarity
  • More stable thickener operation
  • Reduced unnecessary polymer consumption
  • Better balance between process performance and chemical cost
  • Earlier identification of changing feed conditions
  • More focused and lower-risk plant trials
Ongoing optimisation

Optimisation Is an Ongoing Process

Flocculant optimisation should not be treated as a once-off product selection exercise. Marlyn recommends planned test work two to three times per year, and whenever there are material changes in:
Ore source
Feed characteristics
Water chemistry
Throughput
Operating conditions
Repeat testing provides a technical baseline and helps identify changes in feed response before they develop into sustained plant performance issues.
Marlyn technician checking settled solids and supernatant clarity in a measuring cylinder during a flocculant test
2 to 3
planned test rounds a year
Why Marlyn

Why Marlyn?

Marlyn combines laboratory testing, technical product expertise, a broad flocculant range and plant support to help customers optimise their flocculant programmes.

Laboratory testing

Structured test work on representative process samples.

Technical expertise

Product knowledge to match chemistry and dosage to your process.

High-performance product range

High-performance range of anionic, cationic and non-ionic polyacrylamide flocculants.

Plant support

Support from laboratory results through to plant trials.
Our approach goes beyond simply supplying a product. We focus on matching the chemistry and dosage to your actual process conditions and supporting the transition from laboratory testing to practical plant performance.
Talk to our technical team

Optimise Your Flocculant Performance with Marlyn

Talk to our technical team about laboratory test work, product selection, dosage optimisation and plant trials.
Or call +27 (0)11 873 2117 or email
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