Profession wash deinking operator

Wash deinking operators operate a tank where recycled paper is mixed with water and dispersants to wash out printing inks. The solution, called a pulp slurry, is then dewatered to flush out the dissolved inks.

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Personality Type

  • Realistic / Conventional

Knowledge

  • 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.

  • Types of pulp

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

Skills

  • 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.

  • Work safely with machines

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

  • Work safely with chemicals

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

  • 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.

  • 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.

  • 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.

Optional knowledge and skills

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