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Waste Water Treatment

3 days SEC/WASWATER
Level
Proficiency
Audience
  • Daily and shift staff in charge of operating waste water treatment units and networks.
  • Operators of waste units undergoing transformation to waste treatment units.
Purpose
  • To enhance technical knowledge of waste water treatment processes.
Learning Objectives
  • To identify the impact of pollution on the environment.
  • To adapt treatment operating parameters to the properties of incoming polluted water.
  • To improve the operation and maintenance of equipment.
  • To react effectively in adverse situations.
  • To set a basis for regulation.
Ways and means
  • Equipment demos (material, pictures and videos).
  • Visit of a waste water treatment unit.

Local and regional regulations 0.25 day
  • Operating permit: structure, contents, key chapters, elaboration and updating process.
  • Waste water specifications. Penalties in case of violation (formal requirements, fines).
Waste water characteristics 0.5 day
  • Natural sources and components. Various uses of water in operating units. Effluent rejection points.
  • Nature of water pollutants (hydrocarbons, acidity, suspended matters, phenols, sulfides, mercaptans).
  • Analytical methods used in the laboratory and through on-line analyzers. BOD, COD, TOC.
  • Pollution mechanisms, impact on environment (insoluble, organic carbon, eutrophization, sludge).
  • Measurement of pollution: pollutants concentrations, quantities by unit of time. Typicals.
Physico-chemical water treatment processes 1 day
  • Process water stripping: typical process scheme, optimum operating conditions.
  • Settling of insoluble hydrocarbons and sludge. Settling velocity. Settler design types and improvements.
  • Dissolved Air Floatation: equipment, flocculation additives, additive mix and operating parameter optimization.
  • Filtration: various equipment, sand, active carbon beds, other filtration media.
Biological treatment of waste water 0.75 day
  • Growth of bacteria colonies. Required feed and nutrients. Biofiltration of process water.
  • Biological treatment technology: bacteria filters, activated sludge basins. Operating conditions.
Biological sludge treatment 0.5 day
  • Thickening methods: settling, press filtration, flocculation-floatation, centrifugation.
  • Analytical test methods: dry matter, heat value, volatile fractions, heavy metals.
  • Treatment processes: digester, wet oxidation, thermal hydrolysis, incineration, smell control.