Abstract:
:Two laboratory-made cationic starch-based flocculants (St-CTA and St-AD) with different chain architectures were used to simultaneously remove phosphorus and turbidity from two simulated wastewaters and one actual wastewater with laboratory and pilot scales, respectively, in conjunction with FeCl3. A commercial polyacrylamide (PAM) has been also tried and compared with aforementioned starch-based flocculants. The removal extents of phosphorus and turbidity increased, the required dosages of FeCl3 decreased, and floc properties improved after dosing each polymeric flocculant after FeCl3 in all tested wastewaters due to their synergistic effects. However, the three flocculants exhibited different improvement efficiencies on the treated wastewaters containing different forms of phosphorus and showed various synergistic mechanisms owing to their distinct structural features. In inorganic-phosphorus-simulated wastewater, the linear nonionic PAM with a high molecular weight had a more notable contribution than the two starch-based flocculants due to its efficient bridging flocculation effect. Given the branched-chain structure and high positive charge density of St-AD, it had a higher efficiency in treating real wastewater and organic-phosphorus-simulated wastewater than PAM and linear cationic St-CTA. These results may serve as references for the design and selection of a suitable flocculant in treating target wastewaters.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Hu P,Ren J,Hu X,Yang Hdoi
10.1016/j.ijbiomac.2020.11.176subject
Has Abstractpub_date
2021-01-15 00:00:00pages
223-232eissn
0141-8130issn
1879-0003pii
S0141-8130(20)35100-Xjournal_volume
167pub_type
杂志文章abstract::A novel biopolymer-based superporous hydrogel (SPH) was synthesized through chemical crosslinking by graft copolymerization of 2-hydroxyethyl methacrylate (HEMA) and acrylic acid (AA) on to xanthan gum (XG) via redox initiator system of ammonium persulfate (APS) and N, N, N', N'-tetramethylethylenediamine (TMED), in t...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2009.07.007
更新日期:2009-11-01 00:00:00
abstract::The hot acid extract of pea hull, HSP, was rich in galacturonic acid, arabinose and xylose. It was fractionated by copper precipitation followed by ion-exchange chromatography. The copper-soluble fraction represented 26% of HSP and was mostly composed of an arabinan with a low degree of branching, some heteroxylans an...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/s0141-8130(97)00055-x
更新日期:1997-08-01 00:00:00
abstract::Identifying protein-protein interfaces is crucial for structural biology. Because of the constraints in wet experiments, many computational methods have been proposed. Without knowing any information about the partner chains, a new method of predicting protein-protein interaction interface residues purely based on evo...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2006.02.024
更新日期:2006-05-30 00:00:00
abstract::Clinical use of camptothecin (CPT) is hindered due to its poor water and oil solubility, active lactone ring instability and non-targeted toxicity. Recently we reported formulation of camptothecin microemulsions with increased solubility for the improved treatment of breast cancer. In this research chitosan stabilized...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.05.127
更新日期:2017-11-01 00:00:00
abstract::3-Methyl-1-(4-sulfonylbutyl) imidazolium hydrogensulfate, [HO3S(CH2)4mim]HSO4, was applied as an extractant in an ultrasound-microwave synergistic extraction approach to substitute conventional solvent for the extraction of pectin from the albedo part of pomelo peels. The analysis of variance (ANOVA) test and response...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.10.028
更新日期:2017-01-01 00:00:00
abstract::Most peeling products (exfoliators) available on the market, used in cosmetic and aesthetic dermatology applications, contain synthetic microbeads as abrasive agents. After being released into the natural environment, these non-biodegradable microparticles have an adverse impact on it, especially on aquatic ecosystems...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.02.091
更新日期:2019-05-15 00:00:00
abstract::This study investigated structural, in vitro digestion and physicochemical properties of normal rice starch (NRS)/flour (NRF) complexed with maize oil (MO) through heat-moisture treatment (HMT). The NRS-/NRF-MO complex displayed an increased pasting temperature and a decreased peak viscosity. After HMT, less ordered M...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.01.105
更新日期:2017-05-01 00:00:00
abstract::The synthesis and characterization of a novel biodegradable graft copolymer based on partially hydrolyzed polymethylacrylate (PMA) grafted amylopectin (AP) was reported which was developed for the synthesis of silver nanoparticles from silver nitrate solution by facile green technique. The prepared graft copolymer was...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.07.046
更新日期:2015-11-01 00:00:00
abstract::The interaction between xanthan and selected bivalent cations (Ca2+, Mg2+, Mn2+, Fe2+, Cu2+, Zn2+, Cd2+ and Pb2+) was studied by means of conductometry, viscometry, and nuclear magnetic resonance spectroscopy. Xanthan from Xanthomonas campestris was studied in comparison with dextran from Leuconostoc mesenteroides. Wh...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2008.06.001
更新日期:2008-10-01 00:00:00
abstract::With the increasing demand for simple, efficient, environmentally friendly preparation methods to produce cellulose nanofibers for reinforcing a biodegradable film is increased, the role of nanofibers from the pure cellulose produced by bacteria becomes more important. This work characterized bacterial cellulose nanof...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.05.178
更新日期:2019-08-15 00:00:00
abstract::In this study, a novel multi-coated slow release compound fertilizer based on natural rubber (NR) was prepared and characterized. Firstly, NR was grafted with poly-acrylic acid by in-situ radical solution polymerization to synthesize poly-acrylic acid grafted natural rubber (NR-g-PAA), the reaction conditions were opt...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.01.051
更新日期:2020-03-01 00:00:00
abstract::The sugar compositions, α-glucosidase inhibitory and α-amylase inhibitory activities of polysaccharides from leaves and flowers of green tea (Camellia sinensis) obtained by hot water extraction (HWE), boiled water extraction (BWE) and enzymatic extraction (EE) were investigated. The yields, sugar contents and monosacc...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.07.007
更新日期:2010-11-01 00:00:00
abstract::Chlorogenic acid (CA) is a well-known ester of caffeic acid present in some food. It is also an active component in traditional Chinese medicines which are used to treat various diseases, but the molecular basis of CA is not clear. In the present work, the proton selective relaxation rate and the affinity index were u...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.09.015
更新日期:2011-01-01 00:00:00
abstract::Ethanol is currently the most successful biofuel and can be produced from microalgal biomass (third-generation). Ethanol from microalgal biomass has advantages because it does not use arable land and reduces environmental impacts through the sequestration of CO2 from the atmosphere. In this way, micro and macroalgal s...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章,评审
doi:10.1016/j.ijbiomac.2020.10.159
更新日期:2020-10-23 00:00:00
abstract::Poly(ε-caprolactone) (PCL) is one of the most commonly used polymers in the production of tissue engineered scaffolds for hard tissue treatments. Incorporation of cells into these scaffolds significantly enhances the healing rate of the tissue. In this study, PCL scaffolds were prepared by wet spinning technique and m...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.12.036
更新日期:2019-03-15 00:00:00
abstract::We explored a method to examine the hydrolysis of isoflavone glycoside by immobilizing β-glucosidase on chitosan-carbon beads in an aqueous-organic two-phase system. The chitosan-carbon beads were cross-linked with glutaraldehyde to immobilize β-glucosidase from Exiguobacterium sp. DAU5. The optimal pH and temperature...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.08.014
更新日期:2013-10-01 00:00:00
abstract::To improve the thermostability of r27RCL from Rhizopus chinensis and broaden its industrial applications, we used rational design (FoldX) according to ΔΔG calculation to predict mutations. Four thermostable variants S142A, D217V, Q239F, and S250Y were screened out and then combined together to generate a quadruple-mut...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.05.243
更新日期:2020-10-01 00:00:00
abstract::The graft copolymer, chitosan-g-polyethylene glycol (PEG), was prepared through graft polymerization of PEG chains to chitosan due to the esterification reaction between PEG and 6-O-succinate-N-phthaloyl-chitosan (PHCSSA). The graft copolymer with porous structure was observed from scanning electron micrographs. It is...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2006.02.008
更新日期:2006-05-30 00:00:00
abstract::Liposomes, which release their contents in response to the concentration of glucose, were prepared by modifying the liposomal surface with the conjugate of poly(N-isopropylacrylamide-co-methacrylic acid-co-octadecylacrylate) (P(NIPAM-co-MAA-co-ODA)) and glucose oxidase (GOD). The maximum enzymatic activity of copolyme...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2009.06.008
更新日期:2009-11-01 00:00:00
abstract::A novel chitin-graft-polyleucine microsphere with hollow construction was prepared via ring-opening polymerization initiated with chitin based on interfacial protocol. The FT-IR and (1)H NMR analysis demonstrated the conjugation with regulated graft length. The study provided a facile one-step route to obtain microsph...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2008.02.007
更新日期:2008-06-01 00:00:00
abstract::It is of great clinical significance to design wound dressing materials with combined excellent wound healing properties and superior capability to suppress hypertrophic scar formation. This study aimed to examine if and how the cationicity of chitosan would affect the hypertrophic scar-related outcomes, through prepa...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.03.161
更新日期:2020-07-01 00:00:00
abstract::Protein misfolding and aggregation has been implicated as the cause of more than 20 diseases in humans such as Alzheimer's and Parkinson's and systemic amyloidosis. Retardation of Aβ- 42 aggregation is considered as a promising and challenging strategy for developing effective therapeutics against Alzheimer's disease....
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.03.001
更新日期:2017-06-01 00:00:00
abstract::Ganoderma lucidum polysaccharide (GLP) is a functional food constituent employed in disease prevention and treatment. However, the applications of GLP are limited due to oxidative and destruction of the acidic environment. The aim of this study was to prepare Ganoderma lucidum polysaccharide microcapsules using maltod...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.12.153
更新日期:2019-03-15 00:00:00
abstract::The objective of the present study was to investigate the effect of different combinations of carrier agents (Maltodextrin, gum arabic and whey protein concentrate) on the emulsion properties, encapsulation efficiency and oxidative stability of encapsulated drumstick oil powder (EDOP), produced by spray drying to incr...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.07.160
更新日期:2017-12-01 00:00:00
abstract::Copper is known to exert diverse effects on the self-association of proteins and has been found in amyloid deposits that are involved in neurodegenerative disease processes. The effects of the metal ion on the protein during fibrillation were investigated by fluorescence, circular dichroism spectroscopy and fluorescen...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2012.04.024
更新日期:2012-07-01 00:00:00
abstract::The Publisher regrets that this article is an accidental duplication of an article that has already been published in Int. J. Biol. Macromol, doi:10.1016/j.ijbiomac.2008.07.012. The duplicate article has therefore been withdrawn. ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2008.08.002
更新日期:2008-08-19 00:00:00
abstract::The purpose of this study was to investigate the immune and antioxidant activities of Glycyrrhiza glabra polysaccharides (GGP) in rats fed high-fat diet. The experiment was performed on four groups of growing Kunming mice. The results of the experiment showed a statistically significant decrease in serum antioxidant e...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2009.04.001
更新日期:2009-07-01 00:00:00
abstract::A new molecularly imprinted polymer (MIP) chitosan-TiO2 nanocomposite (CTNC) was prepared for the selective and quantitative removal of Rose Bengal dye from industrial wastewater. The physicochemical features of the prepared CTNC-MIP nanoparticles were thoroughly investigated. The prepared MIP nanoparticles exhibited ...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.09.082
更新日期:2018-02-01 00:00:00
abstract::The present work deals with extraction of Cellulose Nano Crystals (CNCs) from Banana fiber using the steam explosion method. Extracted CNCs was grafted with butyl acrylate (BA) monomer with ceric ammonium nitrate (CAN) as an initiator. The prepared graft copolymer was analyzed using FTIR, XRD, SEM and EDAX. FTIR resul...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.03.064
更新日期:2019-06-15 00:00:00
abstract::Regenerated chitin (RCh)/poly (lactic acid) (PLA) blends with enhanced properties were successfully prepared via the Pickering emulsion approach. An oil-in-water Pickering emulsion of PLA/dichloromethane (DCM) stabilized with RCh via an ultrasonic homogenizer was formed. A uniformly dispersed blends were obtained upon...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.08.117
更新日期:2019-11-01 00:00:00