Graft copolymerization of polyDADMAC to cassava starch: Evaluation of process variables via central composite design

Ultrasonic enhancement of the simultaneous removal of quaternary toxic organic dyes by CuO nanoparticles loaded on activated carbon: Central composite design, kinetic and isotherm study

“…, adjusted and predicted R 2 for simultaneous removal of BG is 99.67, 99.18 and 99.12, AO is 99.29, 98.53 and 98.20, MB is 97.87, 94.35 and 94.15 and EY is 98.64, 97.18 and 98.75. "Adeq.Precision" measurement for signal to noise ratio for MB, AO, EY and BG dyes 67.25, 52.97, 25.05 and 33.93, respectively, was greater than 4.0 that its confirm adequate signal[46]. These values confirm high efficincy of quadratic model for best predicting the performance of simultaneous adsorption of BG, AO, MB and EY dyes onto CuO-NPs-AC based on semi-empirical following equations: = 88.0 -10.6x 1 + 0.6x 1 x 1 + 2140.6x 2 -30169.2x 2 x 2 -1.1x 3 -0.03x 3 x 3 -1.2 x 4 -0.1x 5 -0.025x 5 x 5 -0.045x 6 x 6 + 175.3x 1 x 2 + 0.1x 1 x 5 + 0.3x 1 x 6 -40.1x 2 x 6 -0.029x 3 x 4 -0.046x 3 x 5 + 0.1x 4 x 5 + 0.043x 4 x 6…”

Synthesis, properties and performance of organic polymers employed in flocculation applications

“…In this review, we have described the synthesis techniques and flocculation efficiency associated with several non-ionic (1-26, cationic , anionic (60)(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71)(72) and amphoteric (73)(74)(75)(76)(77)(78)(79)(80)(81)(82) polymers, and a summary of each type of polymeric flocculant is presented in Table 1 to Table 4, respectively. The development of synthetically-modified polysaccharide-based materials was observed to be of significant research interest recently due to their aforementioned biodegradable characteristics compared to synthetic flocculants.…”

“…These biodegradable materials are classified into graft copolymerized starch, esterified starch, and etherified starch. 60 63 DADMAC, [64][65][66] and DMC. 67 Chitosan and its derivatives are prominent biopolymers for this category due to its high cationic charge density from the presence of the amino groups.…”

Polymeric flocculant based on cassava starch grafted polydiallyldimethylammonium chloride: Flocculation behavior and mechanism

“…Details of the preparation are discussed in previous work [20]. The grafting percentage and molecular weight of the grafted samples are shown in Table 1.…”