Natural flocculants for the treatment of wastewaters containing dyes or heavy metals: A state-of-the-art review

J El-Gaayda, FE Titchou, R Oukhrib, PS Yap… - Journal of …, 2021 - Elsevier
Flocculation is a water and wastewater treatment technology whereby the large aggregation
of flocs in water can be formed and be later separated through sedimentation. This review …

Recent achievements in polymer bio-based flocculants for water treatment

P Maćczak, H Kaczmarek, M Ziegler-Borowska - Materials, 2020 - mdpi.com
Polymer flocculants are used to promote solid–liquid separation processes in potable water
and wastewater treatment. Recently, bio-based flocculants have received a lot of attention …

Bio-based flocculants for sustainable harvesting of microalgae for biofuel production. A review

CN Ogbonna, EG Nwoba - Renewable and Sustainable Energy Reviews, 2021 - Elsevier
Energy is indispensable to human existence and sustains economic and individual activities
globally. The rising environmental challenges of global warming and other climate changes …

Recent advances in polysaccharide bio-based flocculants

H Salehizadeh, N Yan, R Farnood - Biotechnology advances, 2018 - Elsevier
Natural polysaccharides, derived from biomass feedstocks, marine resources, and
microorganisms, have been attracting considerable attention as benign and environmentally …

A tannin-based agent for coagulation and flocculation of municipal wastewater: Chemical composition, performance assessment compared to Polyaluminum chloride …

YT Hameed, A Idris, SA Hussain, N Abdullah - Journal of Environmental …, 2016 - Elsevier
Chemical composition and flocculation efficiency were investigated for a commercially
produced tannin–based coagulant and flocculant (Tanfloc). The results of Fourier Transform …

Direct Z-Scheme charge transfer in heterostructured MoO3/g-C3N4 photocatalysts and the generation of active radicals in photocatalytic dye degradations

S Xue, C Wu, S Pu, Y Hou, T Tong, G Yang, Z Qin… - Environmental …, 2019 - Elsevier
Photocatalytic degradation is an attractive strategy to purify waste water contaminated by
macromolecular organics. Compared with the single-component photocatalysts …

Microbial flocculants as an alternative to synthetic polymers for wastewater treatment: a review

F Ben Rebah, W Mnif, S M. Siddeeg - Symmetry, 2018 - mdpi.com
Microorganisms such as bacteria, fungi, and microalgae have been used to produce
bioflocculants with various structures. These polymers are active substances that are …

Bacterial bioflocculants: a review of recent advances and perspectives

M Shahadat, TT Teng, M Rafatullah, ZA Shaikh… - Chemical Engineering …, 2017 - Elsevier
Recently, culturing of bioflocculants has attracted tremendous attention because of its
extraordinary flocculating activity and biodegradability to create a green and healthy …

Experimental studies on zeta potential of flocculants for harvesting of algae

A Pandey, VV Pathak, R Kothari, PN Black… - Journal of environmental …, 2019 - Elsevier
An experimental study was performed to evaluate the comparative efficiency of bio-
flocculant (waste egg shell), laboratory available calcium carbonate (LACC) and alum (Al 2 …

Drinking water treatment by stepwise flocculation using polysilicate aluminum magnesium and cationic polyacrylamide

J Ma, R Wang, X Wang, H Zhang, B Zhu, L Lian… - Journal of …, 2019 - Elsevier
In the current work, polysilicate aluminum magnesium (PSAM) and cationic polyacrylamide
(cPAM) were stepwise used for drinking water treatment. The flocculant was characterized …