PolyDADMAC and polyacrylamide as a hybrid flocculation system in the treatment of pulp and paper mills waste water

Ariffin, A.; Razali, M.A.A.; Ahmad, Zulkifli

doi:10.1016/j.cej.2011.10.067

Cited by 61 publications

(41 citation statements)

References 22 publications

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“…Several investigators have described the usage of such agents in the treatment of wastewater from P&P facilities (Ganjidoust et al 1997;Pere et al 1993;Rohella et al 2001;Al-Jasser 2009;Razali et al 2011). Ariffin et al (2012) found that polydiallyldimethylammonium chloride (poly-DADMAC) was effective for coagulation of suspended matter into small flocs. Razali et al (2011) found that the effectiveness of poly-DADMAC as a coagulant for P&P mill wastewater increased with molecular mass.…”

Section: Organic Coagulantsmentioning

confidence: 99%

“…Wastewater treatment operations commonly use sequential combinations of treatment with a coagulant, then with a cationic flocculant of very high mass but low charge density (Ghosh et al 1985;Ahmad et al 2007Ahmad et al , 2008Wang et al 2011;Žarković et al 2011;Ariffin et al 2012;Simonič and Vnučec 2012). The idea is to employ a suitable amount of a relatively inexpensive coagulant to reduce the surface charge of the suspended matter.…”

Section: Flocculantsmentioning

confidence: 99%

Section: Flocculantsmentioning

confidence: 99%

“…Highly cationic organic polymers are often preferred over inorganic coagulants because of the potential for forming denser or larger agglomerates that settle more rapidly (Ghosh et al 1985;Leitz 1993;Aguilar et al 2003;Al-Jasser 2009;Ariffin et al 2012). Several investigators have described the usage of such agents in the treatment of wastewater from P&P facilities (Ganjidoust et al 1997;Pere et al 1993;Rohella et al 2001;Al-Jasser 2009;Razali et al 2011).…”

Section: Organic Coagulantsmentioning

confidence: 99%

“…With their very long chains, flocculants are able to overcome such barriers by adsorbing on two particles simultaneously. Such polyelectrolytes have become widely used in clarification of wastewater from P&P mills (Wang and Pan 1999;Wong et al 2006;Ahmad et al 2007Ahmad et al , 2008Žarković et al 2011;Ariffin et al 2012;Simonič and Vnučec 2012).Wastewater treatment operations commonly use sequential combinations of treatment with a coagulant, then with a cationic flocculant of very high mass but low charge density (Ghosh et al 1985;Ahmad et al 2007Ahmad et al , 2008Wang et al 2011;Žarković et al 2011;Ariffin et al 2012;Simonič and Vnučec 2012). The idea is to employ a suitable amount of a relatively inexpensive coagulant to reduce the surface charge of the suspended matter.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Wastewater Treatment and Reclamation: A Review of Pulp and Paper Industry Practices and Opportunities

Hubbe

Metts

Hermosilla

et al. 2016

BioRes

194

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The pulp and paper (P&P) industry worldwide has achieved substantial progress in treating both process water and wastewater, thus limiting the discharge of pollutants to receiving waters. This review covers a variety of wastewater treatment methods, which provide P&P companies with costeffective ways to limit the release of biological or chemical oxygen demand, toxicity, solids, color, and other indicators of pollutant load. Conventional wastewater treatment systems, often comprising primary clarification followed by activated sludge processes, have been widely implemented in the P&P industry. Higher levels of pollutant removal can be achieved by supplementary treatments, which can include anaerobic biological stages, advanced oxidation processes, bioreactors, and membrane filtration technologies. Improvements in the performance of wastewater treatment operations often can be achieved by effective measurement technologies and by strategic addition of agents including coagulants, flocculants, filter aids, and optimized fungal or bacterial cultures. In addition, P&P mills can implement upstream process changes, including dissolved-air-flotation (DAF) systems, filtration save-alls, and kidney-like operations to purify process waters, thus reducing the load of pollutants and the volume of effluent being discharged to end-of-pipe wastewater treatment plants. Keywords: Wastewater treatment; Pulp and paper manufacturing; Advanced oxidation; Membrane technologies; Clarification; Activated sludgeContact information: a: North Carolina State University, Dept. of Forest Biomaterials, Campus Box 8005, Raleigh, NC 29695-8005; b: WestRock Company, Water and Waste Treatment, 600 S 8th St, Fernandina Beach, FL 32034; c: Department of Agricultural and Forestry Engineering, University of Valladolid, Campus Duques de Soria, E-42004 Soria, Spain; d: Complutense University of Madrid, Department of Chemical Engineering, Ingn. Quim, Facultad de Ciencias Químicas, Ciudad Universitaria s/n,S-N, E-28040 Madrid, Spain; e: Concordia University, Dept. Bldg. Civil & Environm. Engn., 1455 Maisonneuve Blvd, West Montreal, PQ H3G 1M8, Canada; f: University of Jyväskylä, Dept. Chem., Box 35, FI-40014 Jyväskylä, Finland; g: Department of Biology, Center for Environmental and Marine Studies, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; h: Department of Environment and Planning, Center for Environmental and Marine Studies, CESAM, Aveiro & Department of Materials and Ceramics, Institute of Materials, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal; i: FPInnovations, 570 St. Jean Blvd., Pointe Claire, PQ H9R 3J9, Canada; * Corresponding author: hubbe@ncsu.edu Contents of the Article INTRODUCTIONThe pulp and paper (P&P) industry occupies a challenging position with respect to the natural environment. On the positive side, the industry is based on the usage of renewable, photosynthetic resources. On the other hand, the industry discharges huge quantities of aqueous effluents. Large volumes (up to 70 m 3 ) of wastewater ...

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Section: Organic Coagulantsmentioning

confidence: 99%

Section: Flocculantsmentioning

confidence: 99%

Section: Flocculantsmentioning

confidence: 99%

Section: Organic Coagulantsmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Wastewater Treatment and Reclamation: A Review of Pulp and Paper Industry Practices and Opportunities

Hubbe

Metts

Hermosilla

et al. 2016

BioRes

194

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Comparison of initiation methods in the structure of CPAM and sludge flocs properties

Sun

Zhu

et al. 2016

J of Applied Polymer Sci

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Cationic polyacrylamides (CPAMs) synthesized by thermal, ultrasonic, microwave, and UV initiation were characterized through magnetic resonance hydrogen spectroscopy (1H NMR), Fourier transform infrared spectra, scanning electron microscopy, and thermal gravimetric analysis. The CPAMs for flocculation and dewatering of alum sludge produced through drinking water treatment were evaluated based on the residual turbidity of the supernatant, dry solid content, mean volume diameter and floc size distribution, fractal dimension of the flocs, and zeta potential as a function of flocculant dosage. Comparisons of the characteristics and performance of CPAMs synthesized through different initiation methods were systematically conducted. Flocculation and dewatering test results demonstrated that CPAMs synthesized through microwave and UV initiation had better flocculation performance and dewatering capability than those synthesized through thermal and ultrasonic initiation. All four CPAMs exhibited a similar final floc size distribution but different mean volume diameters and floc structures. The fractal dimension of the flocs and the zeta potential were in the following order: CPAM3 (microwave initiation) > CPAM4 (UV initiation) > CPAM1 (thermal initiation) > CPAM2 (ultrasonic initiation). Discussions on fractal dimension and zeta potential indicated that the electrostatic patches model and adsorption/bridging effect mechanisms played the main role in the formation of sludge flocs. Lastly, microwave and UV initiation were found to be alternative and recommendable initiation methods for the synthesis of CPAMs with improved flocculation performance and sludge dewatering capability. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44071.

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Physicochemical characterization and flocculation performance evaluation ofPAC/PMAPTACcomposite flocculant

Guo

Sun

et al. 2021

J of Applied Polymer Sci

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A novel inorganic-organic composite flocculant was prepared with polyaluminum chloride (PAC) and poly(methacrylamido propyl trimethyl ammonium chloride) (PMAPTAC). To understand the physicochemical characterization of PAC/ PMAPTAC and evaluate its flocculation efficiency, the interactions of PAC and cationic polymer were investigated, then the characterization and flocculation performance of PAC/PMAPTAC and PAC/Poly-dimethyldiallylammonium chloride (PDMDAAC) were compared. The results showed that there were obvious interactions between PAC and cationic polymer in composite flocculant. The cationic polymer chain exhibited a coiled state in PAC solution, and the curly degree of PMAPTAC chain was lower than that of PDMDAAC due to the intermolecular association of methyl of PMAPTAC. The cationic polymer enhanced the charge neutralization ability of PAC and changed the aluminum hydrolysis polymerization species of PAC from low and medium polymeric species to high-polymeric species. The flocculation sedimentation experiments turned out that the charge neutralization and bridging ability of PAC/PMAPTAC was higher than that of PAC/PDMDAAC, and the increase of molecular weight or content of PMAPTAC in PAC/PMAPTAC could enhance the charge neutralization and adsorption bridging ability simultaneously. The enhanced effects may come from the exist of polymer and the interactions between PAC and cationic polymer in composite flocculant.

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PolyDADMAC and polyacrylamide as a hybrid flocculation system in the treatment of pulp and paper mills waste water

Cited by 61 publications

References 22 publications

Wastewater Treatment and Reclamation: A Review of Pulp and Paper Industry Practices and Opportunities

Wastewater Treatment and Reclamation: A Review of Pulp and Paper Industry Practices and Opportunities

Comparison of initiation methods in the structure of CPAM and sludge flocs properties

Physicochemical characterization and flocculation performance evaluation ofPAC/PMAPTACcomposite flocculant

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