Results 81 to 90 of about 889,735 (223)

Flocculation studies on iron ore fines using synthetic polymeric flocculants

open access: yes, 1986
Califloc is an efficient flocculant for hematite ore fines. Addition of $CaCl_2$ improves settling rate and clarity significantly at alkaline pH; at acidic pH no addition of Ca is necessary to achieve flocculation. The sequence in which Ca and the flocculant are added is an important factor for the efficiency of flocculation.
Natarajan, KA, Upadhyaya, Ramesh
openaire   +1 more source

Best Practices in Open and Reproducible Antarctic Marine Sediment Core Research

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Marine sediment cores from Antarctica are archived by national programs for reuse and resampling by future researchers, creating a resourceful way to conduct Antarctic science. With reduced budgets to conduct Antarctic field work and to collect new sediment cores offshore of the icy continent, the accessibility of these archived cores and ...
L. E. Miller   +12 more
wiley   +1 more source

A perspective on parsimonious hybrid models for online use: Augmenting fundamental models with ARIMA disturbances

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 11, Page 5854-5874, November 2026.
Abstract Hybrid models (HMs) combine fundamental model (FM) equations with empirical components. These models can lead to improved predictions because they reduce process/model mismatch and can account for phenomena that are not considered in the FM equations.
Mouna Y. Harb, Kimberley B. McAuley
wiley   +1 more source

Kinetics of flocculation of iron oxide particles by polyacrylamide

open access: yes, 1996
219-223The kinetics of the flocculation of iron oxide sol by polyacrylamide has been studied by turbidity measurements. Various kinetics parameters such as per cent flocculation, flocculation rate and rate constants for the flocculation and ...
Bajpai, A K, Bajpai, S K
core  

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando   +7 more
wiley   +1 more source

Recovery of Iron Values from Waste Iron Ore Slime [PDF]

open access: yes, 2016
Iron ore slime is a waste material generated after beneficiation of iron ores. Due to limited iron ore resources and fast depleting of high grade iron ore, iron ore producers are emphasizing on recovery of iron values from iron ore slime.
Rath, R K, Kumar, Anil, Jyolsna, Jerin
core  

Cellulose Fiber‐Engineered Gradient Interfacial Channels as Ion‐Highways for High‐Loading, Long‐Life Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
This study presents a papermaking‐inspired strategy to fabricate high‐loading battery electrodes by integrating a cellulose fiber network. This scaffold creates a gradient porous architecture, enabling ultra‐fast electrolyte infiltration and ion transport.
Wenhao Jia   +11 more
wiley   +1 more source

Flocculation Performance of Grafted Xanthangum: A Comparative Study [PDF]

open access: yes, 2012
221-234Ceric ion induced graft copolymerization of N,N-dimethylacrylamide (DMA) and acrylamide (AM) were carried out onto Xanthangum (XAN) backbone. The graft copolymers were characterized by different characterization techniques.
De, B R   +2 more
core   +1 more source

Selective flocculation for the recovery of iron in Kudremukh tailings

open access: yes, 1985
A concentrate containing 63% iron can be obtained from tailings containing 34% iron with around 60% recovery. Caustic degraded tapioca starch is an effective agent for selective flocculation. While potato starch after caustic degradation can also be used,
Nayak, A.,   +3 more
core  

Evaluation of influence of coagulation/flocculation and Fenton oxidation with iron on landfill leachate treatment [PDF]

open access: yes, 2019
Landfill leachates (LFL) collected from Sfax (Tunisia) discharge area are characterized by high chemical oxygen demand (COD), ammonium and salts contents.
Mseddi, Salma   +4 more
core   +1 more source

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