Application of a combined response surface methodology (RSM)-artificial neural network (ANN) for multiple target optimization and prediction in a magnetic …

K Wang, Y Mao, C Wang, Q Ke, M Zhao… - … Science and Pollution …, 2022 - Springer
In this study, an enhanced coagulation-flocculant process incorporating magnetic powder
was used to further treat the secondary effluent of domestic wastewater from a municipal …

Developing a model to determine the settling velocity of ballasted flocs

M Qasim, S Park, Y Moon, JO Kim - Journal of Environmental Chemical …, 2020 - Elsevier
Ballasted flocculation is an advanced clarification process capable to treat exceed of
colloidal and suspended particles in natural water resources caused by climate change. The …

The role of ballast specific gravity and velocity gradient in ballasted flocculation

M Qasim, S Park, JO Kim - Journal of Hazardous Materials, 2020 - Elsevier
This study investigated the concealed interaction between applied velocity gradient (G
value) and ballast specific gravity (SG) in ballasted flocculation (BF). The objective was to …

Unraveling the role of ballast surface charge at floc growth behavior in ballasted flocculation

M Qasim, S Park, JO Kim - Separation and Purification Technology, 2021 - Elsevier
This study was emphasized on unraveling the concealed role of surface charge
characteristics of employed ballasts at suspended solids interaction with employed ballasts …

Empirical Reynolds number model for drag coefficient determination of ballasted flocs

M Qasim, S Park, JO Kim - Journal of Water Process Engineering, 2021 - Elsevier
Transition of hybrid natured ballasted flocs in fluid medium (reflected by Reynolds number:
Re) is highly important characteristic influencing performance of ballasted flocculation …

A model to determine the drag coefficient of aggregated nonspherical flocs in the ballasted flocculation

M Qasim, S Park, JO Kim - Journal of Water Process Engineering, 2021 - Elsevier
The ballasted flocs exhibit distinct transition characteristics due to their hybrid internal
structure (porous coagulated suspended particles and solid ballast proportions) and …

Optimum conditions for high-speed solid–liquid separation by ballasted flocculation

Y Suzuki, R Kaku, K Takahashi, M Kanai… - Water Science & …, 2023 - iwaponline.com
In the ballasted flocculation, high-speed sedimentation of suspensions is achieved using a
microsand as a ballast material and a polymer flocculant combined with microflocs made of …

[PDF][PDF] Optimization of a water treatment process with respect to coagulation and sedimentation process of a conventional water treatment plant.

R Lefa - 2022 - wiredspace.wits.ac.za
The coagulation-flocculation mechanism has been increasingly investigated by many
researchers in water treatment. A wide variety of chemicals are used for the treatment of raw …