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  2. Process flow diagram - Wikipedia

    en.wikipedia.org/wiki/Process_flow_diagram

    A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.

  3. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Dalecarlia Water Treatment Plant, Washington, D.C. Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment.

  4. Flow process chart - Wikipedia

    en.wikipedia.org/wiki/Flow_process_chart

    The flow process chart is a graphical and symbolic representation of the activities performed on the work piece during the operation in industrial engineering. [ 1 ] History

  5. Sedimentation (water treatment) - Wikipedia

    en.wikipedia.org/.../Sedimentation_(water_treatment)

    The physical process of sedimentation (the act of depositing sediment) has applications in water treatment, whereby gravity acts to remove suspended solids from water. [1] Solid particles entrained by the turbulence of moving water may be removed naturally by sedimentation in the still water of lakes and oceans.

  6. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa. It is one of several biological wastewater treatment alternatives in secondary treatment , which deals with the removal of biodegradable organic ...

  7. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    The treatment process was conceived by John L. Leal and the chlorination plant was designed by George Warren Fuller. [47] Over the next few years, chlorine disinfection using chloride of lime were rapidly installed in drinking water systems around the world. [48]

  8. Amount of substance - Wikipedia

    en.wikipedia.org/wiki/Amount_of_substance

    In chemistry, the amount of substance (symbol n) in a given sample of matter is defined as a ratio (n = N/N A) between the number of elementary entities (N) and the Avogadro constant (N A). Since 2019, the value of the Avogadro constant N A is defined to be exactly 6.022 140 76 × 10 23 mol −1 .

  9. Process flowsheeting - Wikipedia

    en.wikipedia.org/wiki/Process_flowsheeting

    Process flowsheeting is the use of computer aids to perform steady-state heat and mass balancing, sizing and costing calculations for a chemical process. It is an essential and core component of process design. The process design effort may be split into three basic steps Synthesis; Analysis and; Optimization.

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