Course detail

Natural Technologies of Water Treatment

FAST-NSB019Acad. year: 2022/2023

Introduction to the problem, distribution of natural methods of purification, history of using natural methods of purification
Cleaning processes in soil, water and wetlands, importance of vegetation, composition of polluted and waste water
Exploration work, rainwater management
Mechanical pre-treatment of waste water
Horizontal filter design, operation issues
Vertical filter tip, pulse dosing systems
Design of a stabilization tank, floating wetland islands
Combination of natural and artificial ways of cleaning, use in practice, modernization.
Operation of natural sewage treatment plants

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Michal Kriška-Dunajský, Ph.D.

Department

Institute of Landscape Water Management (VHK)

Learning outcomes of the course unit

Student gains overview of possibilities of natural ways of water treatment use, knowledge of purification processes in soil, water and wetland environment, their use in various types of equipment.

Prerequisites

Knowledge of hydraulics - pipe flow, groundwater hydraulics, hydropedology - especially grain-size analysis, density and bulk density filter materials, waste water treatment - mechanical treatment and sludge management, calculation and maximum daily flow, water chemistry and technology, basic concepts such as nitrification and denitrification, BOD, PE

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

Not applicable.

Course curriculum

1. Introduction to natural ways of waste water treatment - advantages, disadvantages, possibilities of use, legislative.
2. Quantity and content of waste water, slurry and sludge, calculations, measurement, mechanical treatment of waste water from the small polluters.
3. Reed bed treatment plants: purification processes in filtration environment, efficiency. Function, use and treatment of plants in reed bed treatment plant.
4. Objects on reed bed treatment plants, design of treatment wetlands, computing and calculation, construction, sealing. Vertical reed bed treatment plant.
5. Plants on treatment wetlands – functions, using, treatment.
6. Materials for filtration media.
7. Possibilities and limitations of VKC, operation of wastewater treatment plants.
8. Cleaner Economy - Investment and Operation.
9. Stabilization tanks: cleaning processes in the aquatic environment, building solutions, dimensions.
10. Efficiency of the treatment plant, carbon footprint, comparison with the best available technologies

Work placements

Not applicable.

Aims

Evaluation of possibilities of natural ways of water treatment use, advantages and disadvantages.
Specific of mechanical pre-treatment solution
Knowledge of purification processes in soil, water and wetland environment, their use in various types of equipment
Ability to use the principle of designing the most used types
Environmental impact assessment, overview of legislative.

Specification of controlled education, way of implementation and compensation for absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

ČSN 75 6402: Čistírny odpadních vod do 500 ekvivalentních obyvatel, 2017. Praha: Úřad pro technickou normalizaci, metrologii a státní zkušebnictví.   (CS)
Dotro, Gabriela & Langergraber, Günter & Molle, Pascal & Nivala, Jaime & Puigagut, Jaume & Stein, Otto. (2017). Biological Wastewater Treatment Series, Volume 7: Treatment Wetlands. (EN)
DWA, 2017. Grundsätze für Bemessung, Bau und Betrieb von Kläranlagen mit bepflanzten und unbepflanzten Filtern zur Reinigung häuslichen und kommunalen Abwassers: Arbeitsblatt DWA-A 262. Hennef: Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall. DWA-Regelwerk, A 262. ISBN 38-872-1547-8. (DE)
Kořenové čistírny odpadních vod, METODICKÁ PŘÍRUČKA PRO POVOLOVÁNÍ, NÁVRH, REALIZACI A PROVOZ, Michal Kriška a Miroslava Němcová, 2015, elektronická verze /pdf dostupné na https://uvhk.fce.vutbr.cz (CS)
ÖNORM B 2505- Kläranlagen – Intermittierend beschickte Bodenfilter („Pflanzenkläranlagen“) (DE)
sciencedirect.com - databáze vědeckých článků, vyhledání klíčových slov "treatment wetland", "vertical filter", "natural treatment", apod. (EN)

Recommended reading

Not applicable.

Elearning

eLearning: currently opened course

Classification of course in study plans

  • Programme NPC-SIV Master's 2 year of study, winter semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Michal Kriška-Dunajský, Ph.D.

Syllabus

  1. Introduction to natural methods of wastewater treatment - technology, possible applications; legislation
  2. Sizing and input for the design of a natural wastewater treatment plant
  3. Mechanical wastewater treatment for small producers - septic tank, anaerobic separator, combs, sand trap, slotted settling tank
  4. Design- subdivision, systems, basic and multistage arrangements, horizontal subsurface flow systems.
  5. WWTP structures, calculations, construction, sealing. Vertical filters with vegetation.
  6. Plants - function, use, treatment.
  7. Stabilization tanks: treatment processes in the aquatic environment, construction design, dimensions.
  8. Sludge management

Exercise

26 hod., compulsory

Teacher / Lecturer

doc. Ing. Michal Kriška-Dunajský, Ph.D.

Syllabus

  1. Specification of an example solution for a domestic wastewater treatment plant - input data, flow rates, determination of concentrations
  2. Design of mechanical pretreatment - septic tank or anaerobic separator - sizing
  3. Mechanical pre-treatment - floor plan and sample section of the building
  4. Vertical filter with vegetation - sizing, layout, shape, pipe hydraulics
  5. Vertical filter with vegetation - floor plan and sample section of the building
  6. Solution of the situation - layout on the plot, creation of a coordinating situation drawing
  7. Preparation of the technical report
  8. Completion of the design of the domestic wastewater treatment plant, credit

Elearning

eLearning: currently opened course