Design and application of gel coagulation–spontaneous flotation integrated process in water treatment:“Clouds in water”

J Zhang, Y Yan, W Jia, W Yang, Q Wang, S Zhao - Water Research, 2023 - Elsevier
The gel coagulation–spontaneous flotation (GCSF) process designed in this paper mainly
rely on dissolved gas in water rather than auxiliary gas equipment to achieve spontaneous …

Evaluating dissolved air flotation for oil/water separation using a hybridized coagulant of ferric chloride and chitosan

J Saththasivam, O Ogunbiyi, J Lawler… - Journal of Water …, 2022 - Elsevier
Dissolved air flotation (DAF) is a separation technology widely used in the industry to reduce
oil concentrations in wastewater. However, there are some issues with the existing DAF …

A study on the feasibility and mechanism of enhanced co-coagulation dissolved air flotation with chitosan-modified microbubbles

Y Wang, W Sun, L Ding, W Liu, L Tian, Y Zhao… - Journal of Water …, 2021 - Elsevier
Abstract Water from the Yellow River reservoir is treated by dissolved air flotation (DAF), but
the flocs formed are loose and easily desorbed. To solve this problem, a new air flotation …

Modeling, simulation and operational parameters of dissolved air flotation

Y Matsui, K Fukushi, N Tambo - Journal of Water Supply: Research …, 1998 - iwaponline.com
This paper presents the mathematical formulation of a model for bubble–floc agglomeration
in the contact zone of dissolved air flotation (DAF). It also contains rising velocity formulae for …

Efficient treatment of the starch wastewater by enhanced flocculation–coagulation of environmentally benign materials

Y Zhang, M Li, G Zhang, W Liu, J Xu, Y Tian… - Separation and …, 2023 - Elsevier
The high concentration, complexity and refractory of organic pollutants in actual starch
wastewater are becoming major obstacles to realizing efficient water purification. Herein …

A demonstration scaling-up of the dissolved air flotation

Y Chung, YC Choi, YH Choi, HS Kang - Water research, 2000 - Elsevier
Dissolved air flotation (DAF) is currently being received in much attention as an effective
process for solid–liquid separation in water technology. In this study, we scaled-up the DAF …

The role of sulfonated chitosan-based flocculant in the treatment of hematite wastewater containing heavy metals

X Tang, T Huang, S Zhang, W Wang… - Colloids and Surfaces A …, 2020 - Elsevier
Hematite wastewater containing dissolved heavy metals is a potential threat to eco-
environment and human health. Flocculation as an efficient and cost effective water …

Hydrophobicity and floc density in induced-air flotation for water treatment

GJ Jameson - Colloids and Surfaces A: Physicochemical and …, 1999 - Elsevier
Induced-air flotation (IAF) has a number of advantages over the dissolved-air flotation
process (DAF), which has been widely used for the removal of fine particulates from …

Comparison of flocs characteristics using before and after composite coagulants under different coagulation mechanisms

B Wang, Y Shui, M He, P Liu - Biochemical Engineering Journal, 2017 - Elsevier
The flocs generated by different coagulants under various coagulation mechanisms produce
fundamentally different floc characteristics. In this investigation, the fractal dimensions of …

Regeneration and reuse of bio-surfactant to produce colloidal gas aphrons for heavy metal ions removal using single and multistage cascade flotation

H Saleem, P Pal, MA Haija, F Banat - Journal of Cleaner Production, 2019 - Elsevier
Bio-surfactants are commonly used in the treatment of wastewaters due to their favorable
characteristics such as biodegradability and low toxicity. In this work, the bio-surfactants are …