Evaluation of inoculum source and saponification pre-treatment in anaerobic digestion of dissolved air flotation waste from dairy industry

2019 ◽  
Author(s):  
Rifki Wahyu Kurnianto ◽  
Rochim Bakti Cahyono ◽  
Wiratni Budhijanto
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Industry ◽  
Dissolved Air Flotation ◽  
Inoculum Source ◽  
Air Flotation ◽  
Pre Treatment ◽  
Dissolved Air

Enhanced rapid gravity filtration and dissolved air flotation for pre-treatment of river thames reservoir water

1998 ◽  
Vol 37 (2) ◽  
pp. 35-42 ◽  
Author(s):  
M. J. Bauer ◽  
R. Bayley ◽  
M. J. Chipps ◽  
A. Eades ◽  
R. J. Scriven ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
21St Century ◽  
Reservoir Water ◽  
Dissolved Air Flotation ◽  
Lowland Rivers ◽  
Air Flotation ◽  
Pre Treatment ◽  
Counter Current ◽  
Dissolved Air

Thames Water treats approximately 2800Ml/d of water originating mainly from the lowland rivers Thames and Lee for supply to over 7.3million customers, principally in the cities of London and Oxford. This paper reviews aspects of Thames Water's research, design and operating experiences of treating algal rich reservoir stored lowland water. Areas covered include experiences of optimising reservoir management, uprating and upgrading of rapid gravity filtration (RGF), standard co-current dissolved air flotation (DAF) and counter-current dissolved air flotation/filtration (COCO-DAFF®) to counter operational problems caused by seasonal blooms of filter blocking algae such as Melosira spp., Aphanizomenon spp. and Anabaena spp. A major programme of uprating and modernisation (inclusion of Advanced Water Treatment: GAC and ozone) of the major works is in progress which, together with the Thames Tunnel Ring Main, will meet London's water supply needs into the 21st Century.

Failure Analysis of a Dissolved Air Flotation Treatment Plant in a Dairy Industry

2011 ◽  
Vol 11 (2) ◽  
pp. 110-122 ◽  
Author(s):  
J. O. Babatola ◽  
K. T. Oladepo ◽  
S. Lukman ◽  
N. O. Olarinoye ◽  
I. A. Oke
Keyword(s):  
Failure Analysis ◽  
Dairy Industry ◽  
Treatment Plant ◽  
Dissolved Air Flotation ◽  
Flotation Treatment ◽  
Air Flotation ◽  
Dissolved Air

scholarly journals Dissolved air flotation of surface water for spiral-wound module nanofiltration pre-treatment

Desalination ◽  
2008 ◽  
Vol 228 (1-3) ◽  
pp. 191-199 ◽  
Author(s):  
Vítor Geraldes ◽  
Aykut Anil ◽  
Maria Norberta de Pinho ◽  
Elizabeth Duarte
Keyword(s):  
Surface Water ◽  
Dissolved Air Flotation ◽  
Air Flotation ◽  
Pre Treatment ◽  
Dissolved Air ◽  
Spiral Wound

scholarly journals Evaluating Pre- and Post-Coagulation Configuration of Dissolved Air Flotation Using Response Surface Methodology

Processes ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 383 ◽  
Author(s):  
Emmanuel Kweinor Tetteh ◽  
Sudesh Rathilal
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Cost Effective ◽  
Post Treatment ◽  
Oil Refinery ◽  
Optimum Conditions ◽  
Dissolved Air Flotation ◽  
Air Flotation ◽  
Pre Treatment ◽  
Dissolved Air

The effects of coagulation-dissolved air flotation (DAF) process configuration was studied on oil refinery wastewater. The configuration was done in two ways: acid-coagulation-DAF (pre-treatment) and acid-DAF-coagulation (post-treatment). Two different cationic and polymeric organic coagulants were employed in this study to compare their treatability performance with the two aforementioned configurations. All the coagulants applied before the DAF were found to be effective, with over 85% more contaminant removal efficiency than their post-treatment. Alum, being the most cost-effective coagulant, was then employed with response surface methodology (RSM) to obtain the optimum conditions. These include a coagulant dosage of 100 mg/L, air saturator pressure of 375 kPa and air–water ratio of 10% vol/vol corresponding to a desirability of 92% for the removal of oily pollutants from a local South Africa oil refinery’s wastewater. With the response quadratic models that were developed, the optimum conditions were tested experimentally, which were consistent with the models predicted results at a 95% confidence level.

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