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Unit Operations in Water Treatment (coagulation, sedimentation, flotation and filtration)

IHE Delft Institute for Water Education

Certificate / Diploma Short course Delft

Course description

Qualification Certificate
Field of study Engineering
Course summary The course presents fundamentals and practice of conventional water treatment: drinking water quality, disinfection, adsorption and activated carbon, natural treatment systems.
Course description Coagulation: Theory of coagulation and flocculation processes: colloidal stability and mechanisms of destabilization, rapid and slow mixing, coagulation in practice, natural coagulants, coagulation kinetics, effects of coagulation. Sedimentation: Hydrodynamic principles of sedimentation and flotation, Stokes law, principles of discrete settling, flocculent settling and hindered settling. Horizontal and vertical continuous flow basins, settling tanks, shape of inlets and outlets. Design of a rectangular horizontal sedimentation tank. Dissolved air flotation (DAF): Key design parameters, Henry's law, nucleus theory, Stokes law, rate of rise theory, hydraulic loading rate, solids loading Filtration: General introduction to various types of filtration systems, mechanical filtration, slow sand filtration, rapid sand filtration (pilot experiments, removal mechanisms, hydraulics, filter elements, rate control, backwashing, multi-layer filtration, applications, design considerations, filter arrangements, modelling, optimisation). Design aspects of the different filtration types. Lab sessions: Coagulation, sedimentation and filtration Field trip
Study subjects The following processes and technologies will be presented in detail through lectures, laboratory sessions and workshops: • Introduction to drinking water quality • Algae in surface water treatment • Disinfection: chemical disinfection, disinfection by products, advanced disinfection processes (ozone, UV light). • Adsorption processes • Activated carbon • Natural treatment systems.
Course objectives Participants will be able to: • Explain the principles of disinfection, drinking water quality, natural treatment systems, adsorption and activated carbon filtration processes. • Integrate principles of disinfection with practical aspects of evaluation of disinfection systems. •Design processes depending on the nature of impurities to be removed and the intended use of the treated water.
ECTS credits 5.00
Duration 3 week(s)
Language of instruction English
Instruction modes computer exercise, excursion, group assignment, individual assignment, laboratory work, lecture, workshop
Accreditation -

About the institution

Department IHE Delft
Information about the institution IHE Delft Institute for Water Education is the largest international graduate water education facility in the world and the only institution in the UN system to confer accredited MSc degrees and promote PhDs. It offers degree programmes, short courses, online courses and tailor-made training. Since 1957 the Institute has provided graduate education to more than 15,000 water professionals from over 160 countries. More than 175 PhD candidates were promoted. IHE Delft is at the centre of a vast international network of water related institutions, and functions as an interface between knowledge networks and centres, public and private sector organizations, scientific and professional associations and other members of the international water community. The Institute runs a substantial number of joint MSc programmes implemented in partnership with universities around the globe. These joint programmes combine the strengths of the collaborating institutions and deliver either multiple degrees or a joint degree.


Admission requirements
  1. Several years of relevant working experience
  2. Relevant wo bachelor (academic bachelor): BSc degree or equivalent in a relevant field from a recognised university.
Language requirements
IELTS overall band 6
TOEFL internet based 87
TOEFL paper based 999
Professional experience required -
Duration 3 week(s)
Application deadlines
Start date EU/EEA Students Non-EU/EEA students
13 Jan 2020 13 Dec 2019 13 Dec 2019
Tuition fees
Year EU/EEA Non-EU/EEA Institutional
2019 (FT)€ 2910€ 2910n.a.

In short, the following rules apply:

  • The “EU/EEA rate” is the regular fee for students from within the EU/EEA.
  • The “non-EU/EEA rate” is the rate for students from outside the EU/EEA.
  • The “institutional rate” is for all students who have already obtained a bachelor’s or master’s degree and who want to start a second programme leading to a degree at the same level or at a lower level.
  • Note that FT, PT and D stand for "full-time", "part-time" and "dual", respectively.

Make sure you contact your institution to find out what rate applies to you. The rates listed here are estimates.


Orange Knowledge Programmes (OKP), MENA Scholarship Programme , Netherlands Fellowship Programmes (NFP)

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Contact information for the study programme

C. Schutter-Brakel

Admission and Fellowship Officer

Contact information for the institution

IHE Delft

Student Affairs

Telephone number
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