Cactus Cladode Juice as Bioflocculant in the Flocculation-Thickening … The optimal amount of cactus bioflocculant for decanting 1 tonne of phosphate pulp
Get InquiryThe optimal amount of cactus bioflocculant for decanting 1 tonne of phosphate pulp at pH 7–8 is 1.12 kg. Special attention is paid to understanding the flocculation mechanism. The results of the physicochemical characterization show that the flocculant biopolymers have similar characteristics to anionic polyacrylamide.
Quoted PriceThe flocculation effect of Ni 2+ by CS-g-PAAI is as high as 86.3% at the optimal condition of pH = 9, flocculant dosage = 4 mg/L, the stirring speed = 400 rpm, and flocculation time = 30 min. Meanwhile, the generated Ni 2+ floc size (d 50 ) and fractal dimension (D f ) can reach a high value (d 50 = 339.3 µm, D f = 1.98), which accelerates the sedimentation and separation of the formed Ni 2 …
Quoted PriceEspecially in sewage flocculation, because cationic or non-ionic polyacrylamide cannot effectively flocculate particles in oil sands tailings, and anionic polyacrylamide limits its use in asphalt …
Quoted PriceUp to now, a series of anionic polyacrylamide with high flocculation performance have been developed and applied in the waste water treatment. However, the defect of the APAM, namely, the disordered and random distribution of anionic units in the polymer chain, seriously restricts the further enhancement of the solid-water separation ability.
Quoted PriceIn this study, a novel anionic template polymer (TPAS) with microblock structure was prepared by ultraviolet light (UV)–assisted template copolymerization (UV-TP). Acrylamide (AM) and sodium styrene sulfonate (SSS) were selected as monomers and polypropylene ammonium chloride (PAAC) was chosen as the template. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy …
Quoted PriceIt is well known that polyacrylamide (PAM) is efficient in water purification, [20] though it meanwhile exhibits shortcomings in toxicity of residual monomer [2] and non-biodegradability. Besides, the high molecular-weight PAM can produce dense flocs, which are usually helpful for easy sedimentation in water treatment.
Quoted PriceIn this study, an effective and environmentally friendly polyaminated cross-linked chitosan (M-PACTS) flocculant was successfully synthesized via circular focus single-mode microwave synthesizer irradiation. Epichlorohydrin and tetraethylenepentamine were used as the cross-linking agent and active cationic reagent, respectively. The same formation was used to prepare cationic lightly cross …
Quoted PriceThe classification of the synthetic organic polymers used in water and wastewater treatment operations is based on the ionic charge present, e.g. cationic, anionic and non-ionic polyelectrolytes. Cationic polyelectrolytes formed the largest number of polymeric coagulants that have been used in CF operations.
Quoted Pricepolyacrylamide anion type Pam is suitable for high concentrations of positively charged inorganic suspensions, as well as coarse suspended particles (0.01-1mm), with a ph value of neutral or …
Quoted PriceNo studies on the environmental fate of anionic polyacrylamide are available. As a high-molecular-weight, water-soluble polymer, it is not expected to biodegrade or bioaccumulate (Lyons and Vasconcellos, 1997). The environmental fate of anionic polyacrylamide will be determined primarily by adsorption (Lyons and Vasconcellos, 1997).
Quoted PriceMethods of wastewater treatment: coagulation–flocculation and direct flocculation. • Flocculating efficiency of bio-flocculants is comparable to chemical flocculants. • Flocculating mechanisms: charge neutralisation, bridging and electrostatic patching. Abstract Abbreviations BOD5 5 days biochemical oxygen demand CD charge density C-F
Quoted PriceRes. PADB was a highly efficient cationic flocculant, which was synthesized through the copolymerization of acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DAC), and butylacrylate (BA) with ultraviolet initiation by micellar polymerization technology. The PADB was the terpolymer of AM, DAC, and BA.
Quoted PriceSuch as turbidity removal, high COD removal efficiency, fast floc s edimentation speed, Advances in Wastewater T reatment I Materials Research Foru m LLC Materials Research Fo undations 91 (2021 …
Quoted PriceHigh molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and…
Quoted PriceConsidering all aforementioned factors, this study attempts to (1) synthesize the template copolymer (TPAS) with the anionic microblock structure through UTP using AM and SAS as monomers, and PAAC as template; (2) elaborate the template polymerization mechanism through the analysis of the association constant KM; (3) characterize the chemical st…
Quoted PriceGeotextile tubes have offered a cost-effective and convenient solution for the treatment of dredged slurry in recent years. Despite their benefits, the dewatering process of this method remains cumbersome and time-consuming. The incorporation of flocculants into dredged slurries has been shown to mitigate the clogging of geotextile tubes, thereby enhancing the efficiency of the dewatering …
Quoted PriceA novel pH-responsive flocculant, P(AM-DEA-DPL) (PADD), was first used for efficient separation and recovery of Cu and Mo from secondary resources via selective flocculation-flotation. The selective flocculation behavior, flocculation-flotation and deflocculation of fine molybdenite, chalcopyrite and quartz were researched by single and artificial mixed ore.
Quoted PriceIn this study, a novel anionic template polymer (TPAS) with microblock structure was prepared by ultraviolet light (UV)–assisted template copolymerization (UV-TP). Acrylamide (AM) and sodium styrene sulfonate (SSS) were selected as monomers and polypropylene ammonium chloride (PAAC) was chosen as the template.
Quoted PriceDye wastewater causes great harm to the natural environment and health. To prepare a high-efficient and cost-effective flocculant to deal with the cationic dye wastewater is still an enormous challenge. In this paper, an anionic copolymer of lignocellulose, acrylamide and carboxymethyl cellulose (LAC) was designed and synthesized by microwave-assisted copolymerization technique. The synthetic …
Quoted PriceThe flocculation effect of Ni 2+ by CS-g-PAAI is as high as 86.3% at the optimal condition of pH = 9, flocculant dosage = 4 mg/L, the stirring speed = 400 rpm, and flocculation time = 30 min. Meanwhile, the generated Ni 2+ floc size (d 50 ) and fractal dimension (D f ) can reach a high value (d 50 = 339.3 µm, D f = 1.98), which accelerates the sedimentation and separation of the formed Ni 2 …
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