Commented University Calendar

Low-cost procedures for Water and Wastewater Analysis

Instructor:

Holger Gulyas

Course Format:

2 hours Lecture

Period:

Winter Semester

Language:

English

Recommended Previous Knowledge:

Basic knowledge in chemistry and environmental analysis

Contents:

1 Introduction

2 Costing of wastewater and water analyses

3 Parameters routinely measured in municipal wastewater effluents

4 Surrogate parameters

5 Field methods

6 Basic laboratory instruments and equipment

6.1 Balances

6.2 Volumetric dosing instruments

6.3 Photometer

6.3.1 General

6.3.2 Principle of photometry

6.3.3 Elements of a photometer

6.4 Deionised water supply

6.5 Safety equipment

7 Inorganic parameters

7.1 Inorganic parameters by probes/electrodes

7.1.1 Dissolved oxygen

7.1.1.1 Polarographic measurement of dissolved oxygen

7.1.1.2 Optical probe for measuring dissolved oxygen utilising luminescence quenching of oxygen

7.1.1.3 Titrimetric determination of dissolved oxygen

7.1.2 pH

7.1.3 Alkalinity

7.1.4 Electric conductivity/salinity

7.2 Nitrogen and phosphorus compounds (nutrients)

7.2.1 Colorimetric methods without expensive instruments

7.2.2 Reflectometric methods

7.2.3 Photometric methods

8 Particles in water and wastewater

9 Organic sum parameters

9.1 Overview

9.2 Chemical Oxygen Demand: Why to avoid COD analyses by the dichromate method?

9.3 TOC cuvette tests

9.4 Absorption of UV light (254 nm) as a surrogate parameter for COD

9.5 Volatile Solids as surrogate for COD

9.6 Biological oxygen demand

10 Microbiological parameters determined in a low-cost way

11 Toxicity toward activated sludge

12 Flow

Learning Outcomes:

Theoretical background for low-cost analytical procedures and testing in the laboratory

Reading Resources:

Skript (wird in StudIP zugänglich gemacht)

Performance Record:

oral Exam

Workload:

60 hours total

Contact:

holli@tu-harburg.de

Credit points of this module can be found in the course plan for the corresponding course of study.