Profession froth flotation deinking operator

Froth flotation deinking operators tend a tank that takes in recycled paper and mixes it with water. The solution is brought to a temperature around 50°C Celsius, after which air bubbles are blown into the tank. The air bubbles lift ink particles to the surface of the suspension and form a froth that is then removed.

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Personality Type

  • Realistic / Conventional

Knowledge

  • Froth flotation processes

    The different aspects of froth flotation, used to separate floatable (hydrophobic) and non-floatable (hydrophilic) ink particles.

  • Types of pulp

    Kinds of pulp are distinguished based on their fibre type and the specific chemical processes through which they were created.

  • Deinking processes

    Various deinking processes such as flotation, bleaching, and washing. These are used to remove ink from the paper in preparation for producing new paper.

  • Types of paper

    The different criteria used to determine differences in paper types such as coarseness and thickness, and the different fabrication methods and wood types from which the types of paper stem.

Skills

  • Work safely with machines

    Check and safely operate machines and equipment required for your work according to manuals and instructions.

  • Monitor chemical process condition

    Monitor the conformity of the chemical process, checking all indicators or warning signals provided by the instruments such as recording instruments, flowmeters and panel lights.

  • Tend deinking tank

    Monitor the flow of waste paper and set up the controller of the tank in which the paper is mixed with water and heated to a high temperature. Skim the ink froth forming on the surface.

  • Work safely with chemicals

    Take the necessary precautions for storing, using and disposing chemical products.

  • Separate ink

    Absorb the ink from the substrate, which separates solid particles from liquid material by detergency. This facilitates the separation of ink from fibre.

  • Use deinking chemicals

    Handle surfactants or deinking chemicals, which remove ink from fibres. Chemicals such as hydroxides, peroxides, and dispersants are used in processes such as bleaching, flotation, washing, and cleaning. Amongst these non-ionic and electrolyte surfactants are the most important.

  • Concentrate pulp slurry

    Measure the weight and concentration of the pulp slurry for further processing and storage by using disk filters and calculating slurry density with specific formulas.

Optional knowledge and skills

inspect quality of products dispose of non-hazardous waste tend bleacher test paper production samples clean equipment prepare production reports types of bleach keep records of work progress wash fibres monitor gauge waste management maintain recycling records dispose of hazardous waste check quality of raw materials record production data for quality control monitor pulp quality carry out waste water treatment perform machine maintenance coordinate shipments of recycling materials report defective manufacturing materials