Sludge treatment performance study

Validate the best sludge dewatering or thickening solution before investment through laboratory testing or on-site trials with a mobile unit.


BIOTRADE offers performance studies focused on industrial and municipal sludge treatment to identify the dewatering or thickening solution best suited to your needs.

These services make it possible to evaluate the performance achievable with equipment such as BioPress screw presses, thickening drums, or mobile sludge treatment units.

The goal is to define optimal treatment conditions, select the most suitable polymer, and validate expected performance before implementing an industrial-scale solution.

In practical terms, this study provides a reliable projection of the achievable dry solids content, the required polymer dosage, and the actual behavior of the sludge to be treated.

Laboratory study

The laboratory study is conducted using sludge samples provided to BIOTRADE. Several tests are carried out to analyze the sludge’s behavior and determine the optimal treatment parameters.

  • Flocculation tests: comparison of different polymers to identify the highest-performing product.
  • Dry solids content measurement: estimation of the concentration achievable after treatment.
  • Sludge behavior analysis: observation of flocculation quality, liquid/solid separation, and result stability.
  • Final report: summary of tests, dosages applied, polymer products tested, and estimated performance.

On-site study using a mobile unit

To validate performance under real-world conditions, BIOTRADE can operate directly on-site using a mobile sludge treatment unit.

This solution makes it possible to test the technology within the actual operating environment, using the site’s own sludge and accounting for existing operational constraints and expected performance targets.

  • Mobile unit installation: on-site connection, start-up, and equipment configuration.
  • Operational settings: adjustment of flow rate, polymer dosage, and treatment parameters.
  • Testing with various polymers: performance comparison based on the specific products tested.
  • Performance measurements: monitoring of dryness, sludge behavior, and treatment quality.
  • Presentation to teams: demonstration of equipment operation under real-world conditions.
  • Secure the investment: validate achievable performance levels before purchasing equipment.
  • Size precisely: select a solution suited to the sludge, flow rate, and site objectives.
  • Optimize operating costs: adjust polymer dosage, improve dryness, and reduce sludge disposal volumes.
  • Compare solutions: evaluate different treatment conditions before selecting the best configuration.
  • Involve teams: provide operators with a practical demonstration of how the solution works.
  • Analysis of laboratory or on-site tests.
  • Polymer grades tested.
  • Dosages applied during the tests.
  • Estimation or measurement of achievable dryness.
  • Observations on sludge behavior.
  • Technical recommendations for selecting the treatment solution.

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  • Laboratory study: tests carried out using sludge samples sent to BIOTRADE in order to assess flocculation, polymer dosage and achievable dry solids content.
  • On-site study: intervention with a mobile sludge treatment unit to test performance under real operating conditions.
  • Comparative trials: testing of several polymer references to identify the most suitable solution for the site sludge.
  • Technical validation: support in selecting the most appropriate dewatering or thickening solution before investment.
  • Test report: summary of the tests carried out, the polymer references used and the dosages applied.
  • Performance measurements: estimation or measurement of the achievable dry solids content according to the sludge type and the technology tested.
  • Technical recommendations: guidance towards the most suitable solution: screw press, thickening drum or mobile unit.
  • Presentation to teams: demonstration of the equipment operation and explanation of the treatment parameters.
  • Sizing support: technical assistance to prepare a future investment or equipment renewal project.

What is the difference between a laboratory study and an on-site trial with a mobile unit?

A laboratory study is carried out using sludge samples sent to BIOTRADE. It allows several polymers to be tested quickly and the achievable dry solids content to be assessed. An on-site trial with a mobile unit validates real operating conditions and demonstrates the full operation of the equipment to the teams.

What does the final performance study report include?

The final report includes the polymer references tested, the dosages applied, the dry solids measurements obtained and an estimate of the achievable dry solids content of sludge dewatered using BIOTRADE technology.

Why carry out a study before investing?

A study helps secure the investment, accurately size the equipment and polymer adapted to the sludge, optimise operating costs and provide teams with a practical demonstration of operation under real conditions.