Coal slurry is an essential component of mining operations, accounting for more than half operating costs. Dewatering technology simultaneously confronted with obstacles and possibilities, it may yet be improved as the crucial step reducing ultimate processing cost. Coagulation/flocculation used a dewatering process that reasonably cost-effective user-friendly. This paper reviews application di...

Although water-soluble synthetic polymers find wide applications as flocculants, the potential problem associated with their use is lack of biodegradability and high cost. Polysaccharides owing to their distinctive features like ability to undergo different chemical reactions, biodegradability and sustainability inspire hope to obtain effective, economical viable and safe substitute of the synt...

Flocculants agglomerate suspended microalgae cells, while cost and toxicity have led to the increased use of bio-flocculants. In this experiment, Chlorella pyrenoidosa was gathered by utilizing bio-flocculants from discarded clam shells. At pH 8, 0.2 mg/mL bio-flocculant shell, 0.1 cationic inducer, 240 rpm mixing achieved 91.87 % flocculation efficiency 458.1 mg recovered biomass. Calcium ions...

In flotation separators, to intensify the purification process, method of preliminary reagent treatment is used with a combination solutions mineral coagulants and organic flocculants. This causes corrosive activity water, significant amount sediment, secondary water pollution products hydrolysis salts. The above disadvantages are nnot typical oily waters ionogenic high-molecular flocculants, w...

The recycling of active materials from Li-ion batteries (LIBs) via froth flotation has gained interest recently. To date, recycled graphite not been pure enough for direct reuse in LIB manufacturing. present work studied the effect particle sizes on grade graphite. Furthermore, selective flocculation is proposed as a novel approach to control and thus improve by preventing entrainment cathode c...

Safe biodegradable “green” alternatives with minimal environmental and health risks have received widespread research interest. Thirty different kinds of bio-based flocculants (modified starches, modified celluloses, native chitosan, and lignin-based flocculant) were pre-tested using a simple jar test for the examination of the applicability of new organic flocculants in papermaking and in cond...

Recent progress in the development of temperature responsive flocculants based on poly (N-isopropyl acrylamide) (PNIPAM) is reviewed. The polymer switches between a flocculant at temperature above the Lower Critical Solution Temperature (LCST) (32C for PNIPAM) and a dispersant at temperature below the LCST. Both batch sedimentation and continuous pilot scale operations have been conducted. Sedi...

Bioflocculants mediate the removal of suspended particles from solution and the efficiency of flocculation is dependent on the characteristics of the flocculant. Apart from the merits of biodegradability and harmlessness, bioflocculants could be viable as industrially relevant flocculants as they are a renewable resource. Additionally, the shortcomings associated with the conventionally used fl...