Polyacrylamide and biopolymer effects on flocculation
Polyacrylamide and biopolymer effects on flocculation, aggregate stability, and water seepage in a silt loam Rodrick D. Lentz USDA, Agricultural Research Service, Northwest Irrigation and Soils Research Laboratory, 3793 N 3600 E, Kimberly, ID 83341 USA
Polyacrylamide and biopolymer effects on flocculation, aggregate stability, and water seepage in a silt loam Article in Geoderma 241-242:289-294 · March 2015 with 106 Reads How we measure 'reads'
Polyacrylamide and biopolymer effects on flocculation
Polyacrylamide and biopolymer effects on flocculation, aggregate stability, and water seepage in a silt loam
Researcher’s seek a more renewable and natural alternative for water soluble anionic polyacrylamide (PAM), a highly-effective, petroleum-derived polymer used in agriculture to control erosion and reduce water seepage from unlined irrigation structures. This study evaluated two anionic polymers: a bacteria-produced polysaccharide (biopolymer) with 10-20 Mg/mol molecular weight (MW) and 30%
Polyacrylamide and Chitosan Biopolymer for Flocculation
Recent studies have shown that turbidity in construction site runoff can be greatly reduced by chemical turbidity control. This study evaluated the performance of chitosan-based biopolymer (dual polymer system, DPS) vs. anionic polyacrylamide (PAM) for turbidity reduction and characteristics of flocculated sediments using two soils from North Carolina, USA.
Request PDF | Polyacrylamide and Chitosan Biopolymer for Flocculation and Turbidity Reduction in Soil Suspensions | Recent studies have shown that turbidity in construction site runoff can be
Effects of polyacrylamide, biopolymer and biochar
We assessed the effects of BC, synthesized BP and anionic PAM on the decomposition of 14 C‐labelled maize residues and on their stabilization in aggregate fractions in sandy and sandy loam soils. Polyacrylamide and BP were applied at 400 kg ha −1 and BC was applied at 5000 kg ha −1 , and the soils were incubated for 80 days at 22°C.
Polymer flocculation has been widely investigated and carried out by the gold extraction industries thanks to its excellent performance in dewatering mineral tailings (Wang et al. 2014a; Chen et al. 2016).In recent years, the inorganic-organic hybrid polymer has been developed as an attractive flocculant for achieving high efficiency or high function owing to the synergistic effects of
Research on the coagulant aid effects of modified
Coagulant aids are an auxiliary agent that can improve the flocculation effect (Abo-el-Enein et al. 2011).CaCl 2 is commonly used as a coagulant aid in the bio-flocculation of coal. Ca 2+ is effective in promoting the flocculating activities of bio-flocculants (Yang et al. 2017).Diatomite is a widely used coagulant aid; its main component is SiO 2 (Al-Ghouti et al. 2003; Khraisheh et al. 2005).
The invention relates to the combined treatment to be followed (coagulation-flocculation and adsorption) for complete elimination of azo dyes present in a solution of said dyes, using chitosan as a biocoagulant and bioadsorbent. Azo dyes in wastewater from the textile industry are found in concentrations of approximately 250 mg/l.
Characterization and flocculation properties
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The present invention relates to a nano-composite SiOx cationic polyacrylamide flocculant and preparation method; flocculant is a coupling agent for surface modification of nano-SiOx, SiOx modified nano-dispersed in an aqueous solution containing
- Are acrylamide-based polymers suitable for enhanced oil recovery?
- Polymers for enhanced oil recovery: a paradigm for structure–property relationship in aqueous solution Some key features to consider when studying acrylamide-based polymers for chemical enhanced oil recovery Green DW, Willhite GP. Enhanced oil recovery.
- Can silicon dioxide nanoparticles improve the performance of polyacrylamide (PAM)?
- Silicon dioxide (SiO) nanoparticles (NPs) have been recently proposed to increase the performance of polyacrylamide (PAM) for enhanced oil recovery (EOR) applications.
- What are chemically enhanced oil recovery methods?
- Chemically enhanced oil recovery methods are utilized to increase the oil recovery by improving the mobility ratio, altering the wettability, and/or lowering the interfacial tension between water and oil. Surfactants and polymers have been used for this purpose for the last few decades.
- What is enhanced oil recovery (EOR)?
- Enhanced oil Recovery (EOR) is a tertiary recovery technique under which there are different methods available such as thermal, chemical and gas injection. Currently, oil reserves about half of which are in the preferentially oil-wet reservoirs, and their production requires the application of enhanced oil recovery (EOR) methods.
