Training of wastewater operators

Aqua Consult Baltic OÜ has conducted training for wastewater treatment plant operators both in Estonia and abroad. For over 10 years, we have carried out training for wastewater treatment plant operators in Estonia on behalf of the Ministry of Climate. As of 2021, we provide training for both wastewater and drinking water treatment plant operators.

The autumn 2023 course takes place over three weeks:
October 2nd-6th: Drinking water treatment,
October 9th-13th: Wastewater treatment,
October 30th-November 3rd: Practical section.

This is a free training, which is mostly online. Register here ....

The registration deadline is September 28th, 2023 at 2:00 PM.

The aim of the training is to provide a comprehensive overview of the primary tasks of water and wastewater treatment operators, the technologies applied, and to connect these with practical experience. During the final week of training, practical experiences and guidelines for the optimal operation of treatment plants and the processes within them are conveyed. The training is led by long-experienced specialists in the field.

The training is in Estonian. Each participant can download training materials from the web – via Google Drive, the link to which will be sent before the training. The online training is conducted via the MS Teams application. To participate in the training, you need a computer with a good internet connection, a webcam, a microphone, and speakers or headphones. If you don't have the MS Teams application installed on your computer, setup instructions will be sent before the training.

A knowledge test takes place on the last day of training. To successfully complete the training, participation in at least 75% of the online lectures and completion of the practical portion is required.



Theoretical Part (80 hours):

The theoretical and practical parts of the training are divided according to the field into drinking water treatment and wastewater treatment sections. In the theoretical portion, operators are provided with basic knowledge of water treatment and wastewater treatment technological processes, and optimal conditions for managing the treatment process. Different stages and methods of water treatment and wastewater treatment technological processes are described.

The trainer provides digital slides of the learning materials before the start of the course. There is a two-week period between the theoretical and practical training weeks during which participants will draft a written assignment on their water treatment plant or cleaning device. The basis for drafting the written work is a questionnaire given by the trainer, to which trainees seek answers in their work. Feedback on the written work submitted about each trainee's water treatment plant or wastewater treatment device will be provided individually by the trainer.

Practical Part with Test and Interview (40 hours):

At the beginning of the practical week, there are 16 academic hours of work, where the material is reviewed, drinking water treatment processes and wastewater treatment conditions necessary for functioning are discussed in more detail, and all homework is reviewed. To consolidate the acquired theoretical material, participants will visit one efficiently operating water treatment plant and one large (with a pollution load over 2000 PE) and one small (with a pollution load below 2000 PE) wastewater treatment plant, where operators are given an overview of the ongoing processes outdoors.
It's necessary to visit one water treatment plant where manganese or iron separation occurs, and two types of wastewater treatment plants: soil filter and activated sludge treatment plants.

As part of the practical part, operators participating in the course must describe the technological process of their managed water treatment plant(s) or wastewater treatment plant(s) and describe common problems and suggest solutions.

On the last day of the practical week, there's a knowledge test, consisting of questions related to drinking water treatment and wastewater treatment. The test is conducted electronically. The test for participants consists of a total of 80 multiple-choice questions: 40 questions cover drinking water treatment, and 40 questions cover wastewater treatment. To pass the test successfully, it's necessary to answer correctly at least 60% of the questions.


After the test, there's a discussion where the most error-prone test questions are reviewed. At the end of the training, participants who have completed the course will be electronically issued a certificate, which proves participation in the courses and describes the results achieved in the knowledge test by points.


Further Information:
Mariliis Hänilane

ph nr: +372 5801 5004