Water&Sanitation Africa July/August 2021

Page 44

ODOUR CONTROL Fermentation tank GRP cover at Driefontein WWTW

More to odour control than supplying equipment Established in 1996, OdorCure typically partners with contractors, consulting engineers and municipalities when dealing with odour control issues in wastewater treatment facilities. Each of these role players has a different approach and interest when dealing with odour control.

W

ith over two decades of experience, OdorCure has the technologies and know-how to meet the needs of these different parties. The odour control business is more complicated than simply delivering a piece of equipment. There is a technical aspect, as well as a contract and project management side to the business. It is also important to understand the operational environment that requires odour control,” says Hennie Smal, project manager at OdorCure.

Main contractor

For a main contractor, the pricing of odour control is very important because cost

weighs most in a tender award process. It is also important for the subcontractor providing odour control equipment, first, to supply fit-for-purpose equipment and, second, to install it properly and commission it to work correctly. “If we are appointed by a main contractor to work as a subcontractor, it is important to understand not only the technical specifications but also the other contractual obligations and management process. Often, detailed drawings and documentation may have to be submitted and strenuous safety rules and regulations followed. It is important for the subcontactor to understand and be able to function in this Dry scrubber environment with minimum fuss at Buffalo City for the main contractor. Pump Station (550m3/h) “Incorrect pricing, or not understanding contract requirements, has caused many a subcontractor to lose a lot of money and may even result in them not being able to perform. They may then be in breach of contract. This

can be a nightmare for the employer, main contractor and consultants alike,” adds Smal.

Consulting engineers

A municipality may approach consulting engineers with an odour problem. The consulting engineers will then investigate the problem and recommend possible solutions. Once a decision on the best option is reached, the consulting engineers will write a tender specification that will form part of a formal tender document. Smal explains that, with a tender specification, an odour control company has to understand what is technically required. “Sometimes, a company will offer a particular technology without truly understanding the complexity of the application. “The first mistake that companies make is that they misinterpret the contract specifications. The second mistake is that they underestimate the process that needs to be followed to install odour control equipment.” A large amount of information may have to be submitted, and this could include detailed technical papers, brochures, papers and drawings (electrical, mechanical and civil drawings). All this information is assessed by the consultants who will have many questions. These questions must be answered satisfactorily and revisions to designs may have to be submitted. “This can be a time-consuming process, and there are time constraints under a contract. Your designs can take months to approve. If your equipment is imported, there can be delivery delays. It is very easy to get lost in that process and to be


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Articles inside

Water storage tank manufacturer expands range

3min
pages 24-25

Groundwater: hidden but never forgotten

6min
pages 56-57

Blue Drop and Green Drop certification programme revitalised

4min
pages 54-55

What pipe has a quicker installation time?

3min
page 53

Costing end point disinfection in water treatment plants

6min
pages 50-52

No odour at Reeston Wastewater Treatment Works

2min
page 46

The environmental impacts of water treatment

7min
pages 47-49

More to odour control than supplying equipment

5min
pages 44-45

Rural sanitation and wastewater management vital for South Africa

4min
pages 42-43

Wastewater treatment plants – that you cannot see, hear or smell

5min
pages 40-41

Making use of acid mine water

2min
page 39

Open-pit mining – measuring water levels

2min
page 38

Industrial effluent should be central to all processes

4min
pages 34-35

Holistic approach to mine and industrial water management

8min
pages 28-31

Trends and issues facing the water treatment industry

6min
pages 32-33

Determining the true cost of water

5min
pages 26-27

Water storage tank manufacturer expands range

4min
pages 24-25

Digital water management solution

3min
page 23

YWP

6min
pages 12-13

MAD

4min
pages 14-15

New mechanical/electrical installation at Verulam and La Mercy Pump Station

6min
pages 6-7

It was said in WASA

6min
pages 8-9

CEO’s comment

2min
page 10

Increasing dam storage capacity through the NatSilt Programme

8min
pages 20-22

Editor’s comment

4min
page 5

Chair’s comment

2min
page 11
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