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From more than 30 years of experience in R&D and design experience in Dissolved Air Flotation, DAF plants can be designed for any drinking water or industrial effluent application. Designs have been done from bench-scale sized test units up to large plants, treating more than 800 Ml/d. A special application is the upgrade of sand filter systems to a DAF/filtration plant configuration. For smaller applications (up to 30 kl/h for industrial and 60 kl/h for drinking water treatment), the simple, inexpensive - yet very efficient - Econo-DAF design provides a very cost effective solution (see further details on the website).


List of Dissolved Air Flotation Plants Designed

PLANT

YEAR

DESCRIPTION

Pilot DAFF

1983

24 m3/d fully adjustable DAFF (DAF on top of sand filter) for research and pilot plant purposes (CSIR)

Van Leer Industries

1984

1.9 Ml/d paper effluent treatment (for Explochem Water Treatment))

AEC

1985

7 Ml/d phosphate removal plant (Van Wyk & Louw)

UCOR

1985

20 Ml/d secondary sewage effluent reclamation (Explochem)

Zeekoegat

1987

7 Ml/d secondary sewage effluent reclamation (Babcock)

Daspoort Sewage Works, Pretoria

1989

Thickening of sewage sludge (Biwater)

Centurion Sewage Works, Pretoria

1989

Thickening of sewage sludge (Biwater)

Unilever

1990

500 m3/d plant oil treatment & recovery (Explochem)

Fishwater Flats

1993

7.8 Ml/d secondary sewage effluent reclamation (Explochem)

Sappi, Stanger

1993

3.6 Ml/d paper effluent treatment plant (Explochem)

Taiwan fisheries DAF

1993

700 m3/d oily water treatment (Explochem)

Packo

1994

500 m3/d food processing effluent (Explochem)

Mauritius Laundry

1994

600 m3/d laundry water treatment & reclamation (Explochem)

Belgotex

1994

620 m3/d textile effluent treatment (Explochem)

SADAFCO, Jeddah, Saudi Arabia

1994

600 m3/d dairy effluent treatment plant (Explochem)

SADAFCO, Jeddah, Saudi Arabia

1994

500 m3/d dairy effluent treatment plant (Explochem)

Unilever, Malawi

1994

1 Ml/d plant oil effluent treatment (Explochem)

Unilever, Kenia

1994

2.1 Ml/d plant oil effluent treatment (Explochem)

Zambia Dairies, Zambia

1994

600 m3/d dairy effluent treatment (Explochem)

DV Harris, Umgeni Water

1995

30 Ml/d drinking water treatment from eutrophic source  (plant ran successfully but source since changed to avert the use of activated carbon and plant not in use any more)

Wiggins, Umgeni Water

1995

5 Ml/d water works sludge thickening (Explochem)

Kriel Power Station, ESKOM

1995

6 Ml/d treatment of cooling tower blow-down water (Explochem)

Dyehouse effluent

1996

1.8 Ml/d dye house effluent treatment (Explochem)

Vridi

1996

650 m3/d oily water treatment (Explochem)

Umbilo Sewage Works

1997

900 m3/d sewage sludge thickening plant upgrade (Treffry-Goatley & Assoc)

Oily water, Talbot & Talbot

1997

5.4 Ml/d oily water treatment plant (Talbot & Talbot)

Temba Sewage Works, Pretoria

1998

2.6 Ml/d thickening of sewage sludge (Lektratek Water)

Wastewater reclamation, Foster-Wheeler

2002

650 m3/d wastewater reclamation plant (Foster-Wheeler)

Bench DAF

2003

Design of a bench unit for DAF evaluation studies (Improchem)

Pilot DAF

2004

Design of a 1 m3/h DAFF (DAF on top of a sand filter) pilot plant for general pilot studies (Improchem)

Sappi, Mandini

2004

425 m3/d treatment of paper effluent part-stream (Lektratek)

Rainbow Chicken

2004

200 m3/d chicken processing plant effluent treatment (Total Water Management)

SAPREF

2004

4.5 Ml/d oil removal and recovery plant (Improchem)

Plettenberg Bay, Bitou Mun

2005

10 Ml/d DAF for drinking water treatment

Caltex

2005

2.4 Ml/d petroleum wastewater treatment plant (Improchem)

Roodeplaat,Tshwane

2007

600 m3/d eutrophic water treatment plant (Purion)

Pilot DAF

2014

20 m3/d DAFF (DAF on top of a sand filter) pilot plant for general pilot studies (Explochem)

Oily water DAF, SOIL, Swellendam

2015

72 m3/d effluent treatment plant for oil removal (Alveo Water).

DAF system for SPP Canning, Hermanus

2015

120 m3/d effluent abalone effluent treatment plant (Alveo Water)

Oakland Dairy, Cape Town

2015

120 m3/d dairy wastewater treatment (Alveo Water)

Dairy effluent DAF

2016

Renovation and upgrade of a 600 m3/d dairy effluent treatment plant (Dairy Day)

Laundry Effluent DAF

2017

240 m3/d DAF for the pre-treatment of a laundry effluent before UF & RO (Ikusasa Water)

Pearly Beach DAF

2017

960 m3/d high-rate lamella DAF for pre-treatment to membranes for drinking water Ikusasa Water)

Plastics effluent DAF

2018

300 m3/d DAF for the treatment of a plastics recovery effluent (Alveo Water)

Laundry Effluent DAF

2018

300 m3/d DAF for the pre-treatment of a laundry effluent before UF & RO (Kainos Africa (Pty) Ltd)

Meulwater DAFF

2019

8.3 Ml/d DAFF plant for drinking water treatment at Drakenstein Municipality (Aurecon)

Pioneer Foods DAF

2019

120 m3/d DAF system for fruit processing effluent treatment. (Kainos Africa (Pty) Ltd)

Fruit Processing Effluent DAF

2019

Renovation and upgrade of a 1 Ml/d fruit effluent treatment plant (International Water Technologies)

Distell bioreactor effluent DAF

2020

2.5 Ml/d DAF treatment of liquor production effluent from a bio-reactor (Tecroveer)

Country Fair chicken abattoir effluent

2020

25 m3/h Econo-DAF plant for the treatment of chicken rendering plant effluent and recovery of by-products (Tesla Water)

Meerlust drinking water DAF

2021

4 m3/h DAF plant plant for the treatment of algal dam water to drinking water (Utico Water)

Algae water DAF

2021

10 m3/h Econo-DAF plant plant for the treatment of algal dam water to drinking water (PCM Consulting)

Pepsico chip effluent DAF

2022

14 m3/h DAF plant for the treatment of chip-making effluent (Talbot)

In2Food, Benoni, effluent

2022

3.5 m3/h Econo-DAF plant for the treatment of food effluent (BB Water)

Ink effluent DAF

2022

200 l/h Econo-DAF plant for ink effluent treatment (Brenton Water)

CBH Chicken abattoir product recovery DAF

2022

60 m3/h Econo-DAF system for the recovery of fat and proteins from a chicken abattoir effluent (Tesla Water & Superior Systems)

Twinsaver, Bellville 2023 60 m3/h Econo-DAF system for the treatment of a mixed, sewage-based, effluent (AECI Water)
Goldfields Harmony DAF 2023 75 m3/h Econo-DAF system for the treatment of surface water  for mining process water use (AECI Water)
Kelloggs effluent treatment DAF 2023 5 m3/h Econo-DAF system for the treatment of wastewater from the Kelloggs, Extrupet, plan (Chemal Chemical Trading)
Food effluent DAF 2023 2 m3/h Econo-DAF system for the treatment of a food effluent (G-Chem Aquacare)

Gymnasium effluent water DAF

2024

72 m3/d DAF system for the treatment of Gym effluent (WEC Projects)

DAF for surface water treatment for irrigation

2024

680 m3/d Econo-DAF system for the treatment of surface water for vegetable production (Heat Exchange Projects, Namibia)

DAF for surface water treatment for irrigation

2024

860 m3/d Econo-DAF system for the treatment of surface water for vegetable production (Heat Exchange Projects, Namibia)

Avocado processing effluent DAF

2024

220 m3/d Econo-DAF system for the treatment of avocado processing effluent (The Water Boys)

Fish processing effluent DAF 2025 1 400 m3/d Econo-DAF system for the treatment of fish processing effluent and oil recovery (Pioneer Fishing)