flocculation performance of cationic polyaluminium chloride

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red mud-based polyaluminium ferric chloride flocculant: ...

Red mud-based polyaluminium ferric chloride flocculant: ...

The results showed that the flocculation ef-fect was the best when the dosage of polyaluminum chloride was 5 g/100mL. An appropriate amount of flocculant can neutralize the surface charge, reduce the repulsion between particles, and flocculate aggregation. The best settlement time was about 1 h.

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flocculation property of composite flocculants pac/cpam for ...

Flocculation property of composite flocculants PAC/CPAM for ...

In this paper, we investigate the flocculation performance of composite coagulants polyaluminium chloride (PAC) and cationic polyacrylamide (CPAM) for landscape water treatment. The flocculant CPAM was synthesized through low-pressure UV initiation in our

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understanding synergistic mechanisms of silicate decorated ...

Understanding synergistic mechanisms of silicate decorated ...

The Performance of Polyaluminium Chloride and Bentonite clay Coagulant in the Removal of Cationic and Anionic Dyes Elvis Fosso-Kankeu; Oupa Ntwampe; Frans Waanders, and Alicea Webster Abstract-A ...

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... review on application of flocculants in wastewater treatment ...

... review on application of flocculants in wastewater treatment ...

In this paper, we investigate the flocculation performance of composite coagulants polyaluminium chloride (PAC) and cationic polyacrylamide (CPAM) for landscape water treatment. The flocculant CPAM was synthesized through low-pressure UV initiation in our

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synthesis of a polyamine-modified starch flocculant and its ...

Synthesis of a polyamine-modified starch flocculant and its ...

Surfactant-enhanced coagulation and flocculation improves the removal of perfluoroalkyl substances from surface water† Amith Sadananda Maroli a, Yi Zhang a, Jonathan Lubiantoro a and Arjun K. Venkatesan * b a New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY 11794, USA.

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the safe use of cationic flocculants with reverse osmosis ...

The safe use of cationic flocculants with reverse osmosis ...

The safe use of cationic flocculants with reverse osmosis membranes S.P. Chesters , E.G. Darton, Silvia Gallego, F.D. Vigo ... Polyaluminium chloride [PAC] Metals removal, oil and grease separation and water clarification Sodium aluminate Colour removal ...

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flocculation performance of alginate grafted polysilicate al ...

Flocculation performance of alginate grafted polysilicate al ...

Compared with traditional aluminum salt flocculants, PAC has higher treatment efficiency, low dosage, less by-products and better environmental performance. The purity of Polyaluminium Chloride (PAC) is usually divided according to its aluminum content (Al₂O₃ content) and classified according to different application requirements and product standards.

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How is a polyaluminium ferric chloride flocculant prepared?

A highly efficient polyaluminium ferric chloride (PAFC) flocculant was prepared by adjusting the pH of a leaching solution, the molar ratio of Al to Fe, and the polymerisation temperature. The effects of synthesis and flocculation conditions on the flocculation performance of aged landfill leachate were investigated.

Why is polyaluminum chloride a good coagulant for water treatment?

Polyaluminum chloride (PAC) is highly effective coagulant for water treatment over conventional coagulants because of low dosage requirement, shorter flocculation time, smaller amount of sludge, high efficiency and low aluminum residual in treated water .

What is the optimum polymerisation temperature for PAFC flocculants?

The results confirmed that PAFC flocculant prepared at a polymerisation pH of 2.5, Al/Fe molar ratio of 8, and polymerisation temperature of 70 °C had the optimum effect. The effect of PAFC and commercial polyaluminium ferric chloride flocculants used under different flocculation conditions were compared.

Can red mud be used to synthesise polyaluminium ferric chloride (PAFC) flocculant?

Red mud was used to synthesise polyaluminium ferric chloride (PAFC) flocculant. The COD and TOC of PAFC to landfill leachate were 72.2% and 82.6%, respectively. PAFC have advantages over commercial PAFC in settlement velocity and TOC removal efficiency. In this study, red mud was used as a raw material to extract Al and Fe using hydrochloric acid.

Can a PAFC flocculant be used for wastewater treatment?

Based on these results, it can be concluded that a PAFC flocculant has significant potential for use in the pre-treatment and purification of wastewater. Table 1. Comparison of the effects of different flocculants for wastewater treatment.

Is PAFC a better flocculant than cpafc?

The flocculation indexes measured confirmed that the flocculation performance of PAFC on landfill leachate could reach the effect of CPAFC. Moreover, PAFC has more advantages than commercial flocculants in terms of TOC and SV.

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