The flocculating effects of the flocculants produced by the flocculant-creating bacteria HHE-P7, HHE-P8, HHE-P21, HHE-P24 and HHE-A26 on the high-turbidity wastewater from building material production are studied respectively, and the main factors affecting the flocculation are discussed.
The bioflocculation effect of self-made microbial flocculant on flocculent anaerobic sludge is studied, and the optimal conditions for flocculation reaction are determined through orthogonal test, i.e., the pH value should be 7.2, the dosage of CaCl2 should be 300 mg/L, the dosage of microbial flocculant should be 20 mg/L, and the stirring speed should be 300 r/min.
The results showed that translucent rate and COD removal rate of the effluents were 91.9% and 61.4% respectively under the condition of pH 4,CSF 10mg/L and 10min of reactor time,which indicated that CSF had high efficiency in treating the oil wastewater,and the flocculent character of CSF on the oil wastewater was obvious.
The results showed that the removing rates of S S,CODCr and colourity in papermaking wastewater was 92.4%,85.2% and 91.6% respectively in the conditions when pH value was 7.0 and dosage of the coagulant was 60mg/L,combined with polysilicate aluminum(PSA) flocculant.
for the living sludge from municipal sewage treating factory, the most suitable coagulant is cationic high molecular coagulant with 60%～100% ion exponent and M W 30,000,000～60,000,000, the optimum dosage is 100g/m~3 and dewatering rate is 79%.
Determination of copper, lead, and cadmium ions and the KF-91 flocculant in natural and waste waters by alternating-current stri
The procedures have been applied to the control of water purification and the determination of both heavy-metal ions and the KF-91 flocculant (2-methyl-N-methylpiridinium-5-polyvinyl methyl sulfate).
Preparation of Anionic Flocculant by Alkaline Hydrolysis of Polyacrylamide (Praestol 2500) in Aqueous Solutions and Its Use for
The performance of FK-1 and FK-3 cationic polyelectrolytes and of new AMF-2 amphoteric polyelectrolyte in treatment of the wastewater of finishing-and-dyeing production was studied as influenced by the concentrations of flocculant and coagulant.
The flocculation power of grafted chitosan copolymers with dimethylaminoethyl methacrylate in mixtures with an anionic polyacrylic flocculant was evaluated.
Dependence of the initial flocculation rate on PVC concentration has an extremal pattern, which is typical of polymer flocculants.
Sedimentation of titanium dioxide suspension in the presence of polyacrylamide flocculants
The kinetics of sedimentation of titanium dioxide suspension in aqueous and water-salt media is studied in the presence of high-molecular-weight flocculants - polyacrylamide and ionic (anionic and cationic) acrylamide copolymers.
Use of triphenylmethane dyes for the spectrophotometric determination of polymer flocculants in aqueous solutions
The interaction of anionic forms of triphenylmethane dyes (TPM) with cationic polymer flocculants (e.g., with polydiallyldimethylammonium chloride (PC)) yields inextricable ion pairs.
In SEM, the solicitation speckle looked flocculent.
Cell inclusions in and around the large vesicle consist of flocculent material of a very low density, a few shell globule clusters, moderately dense proteinaceous granules and numerous large droplets of unsaturated lipids.
Moreover, the ultrastructure of the tissue was studied with special attention to the appearance of flocculent densities in mitochondria, which can be seen as a sign of irreversible cell damage.
We found that ischaemia alone led to only a slightly flocculent appearance of the glycocalyx and its disruption was not observed until the onset of reperfusion.
The morphology of the other hydrates appears to be flocculent, with a dense structure.
In order to change the sedimentation and wettability state of the carbon black, the complex solution of the coagulant and surfactant was applied.
This complex exerted a positive effect on physiological function of the coagulant, anticoagulant, and fibrinolytic components of the hemostatic system in the norm and in developing experimental alloxan diabetes.
The aggregation stability of sulfate lignin in aqueous AlCl3 and Al2(SO4)3 solutions within wide ranges of pH values and coagulant concentrations was studied by spectrophotometry.
Fatigue led to more manifest individual changes in most of the indices of coagulant, anticoagulant, and fibrinolytic activity of blood.
The suitability of N,N-dimethyl-N,N-diallylammonium chloride-SO2 copolymer as coagulant for isolating rubber from synthetic latexes was investigated.