Anionic polyacrylamide efficiency in goethite removal
The main aim of the study was to investigate the anionic polyacrylamide (PAM) efficiency as a flocculant relative to goethite particles. This mineral is a toxic waste produced during hydrometallurgical processes and, as a result, poses a threat to the environment. In the experiments, the following analytical methods were applied: potentiometric titration, zeta potential and adsorption amount
In this work, the impact of anionic and cationic polyacrylamide in injected fluids on the alteration of the surface properties of shale is studied. Using zeta potential and rheological measurements to quantify shale–polymer interaction is a novel technique and is extensively researched and studied in this work.
Effects of anionic polyacrylamide on maize growth: a short
Methods. Aggregate-free loess with high water holding capacity was used as growing substrate to test the effects of two rates (10 and 40 kg ha −1) of a linear PAM on the growth of maize (Zea maize L.) for a period up to one month. The PAM effects were evaluated at three levels of soil water content (SWC) and three plant ages, based on water consumption, shoot and root biomass, as well as
Abstract. In the present study, particular emphasis was put on the effects of the type of functional groups of anionic and cationic polyacrylamide (PAM) and solution pH on the mechanism of polymer adsorption on the surface of dispersed alumina.
Impact of anionic polyacrylamide on stability and surface
ORIGINAL CONTRIBUTION Impact of anionic polyacrylamide on stability and surface properties of the Al2O3–polymer solution system at different temperatures Małgorzata Wiśniewska1 & Stanisław Chibowski1 & Teresa Urban1 & Dariusz Sternik2 & Konrad Terpiłowski3 Received: 29 March 2016/Revised: 11 May 2016/Accepted: 6 June 2016/Published online: 9 July 2016
Anionic polyacrylamide is a hydrolyzed form of polyacrylamide (HPAM), which suffers from mechanical degradation at turbulent flow rates. In order to invest
Novel Superabsorbent Cellulose-Based Hydrogels: Present
Over the past century, hydrogels have emerged as an effective material for an immense variety of applications. This contribution provides a brief overview of recent progress in cellulose-based...
Wound healing is frequently enhanced by the application of dressings which maintain a moist environment and provide for absorption of exudates. In many cases, dressings with antibacterial properties...
Chemický ústav (3) - Документ
Chemický ústav Slovenskej akadémie vied SPRÁVA O ČINNOSTI ZA ROK 2010 Bratislava január 2011 O b s a h 1. Základné údaje o organizácii 1 1.1 Kontaktné údaje 1 1.2. Údaje o zamestnancoch 1 1.3. Iné dôležité informácie k základným údajom o organizácii 2
Hydroxyethyl Starch Derivatives: Starches that have been chemically modified so that a percentage of OH groups are substituted with 2-hydroxyethyl ether groups. Plasma Substitutes: Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations.These substances do not enhance the oxygen- carrying capacity of blood, but merely
Validity and visualization of a numerical model used
Suzuki, Katsuya Takagi, Tsutomu Hiraishi, Tomonori Fish behavior Mathematical model Fractal dimension analysis 660 The schooling behavior of the fish Parapristipoma trilineatum (chicken grunt) was examined for a range of school sizes in a water tank containing a central columnar structure using a mathematical model of fish schooling behavior that was modified from that of Sannomiya and Matuda.
Wound healing is frequently enhanced by the application of dressings which maintain a moist environment and provide for absorption of exudates. In many cases, dressings with antibacterial properties...
- What is anaerobic wastewater treatment?
- Biological wastewater treatment processes in the absence of molecular oxygen, where for the respiratory reaction the terminal electron acceptors are carbon dioxide, organics, nitrates and sulphate or fermentative reduction reactions undergoes are generally referred to as anaerobic processes.
- Can Anaerobic reactors be used in agro-industrial wastewater treatment?
- In countries like the Netherlands, almost all agro-industrial wastewaters are presently treated with anaerobic reactor systems. The application potential, e.g. in the petro-chemical industries, is rapidly growing. reactor volumes. no use of fossil fuels for treatment, saving about 1 kWh/kgCOD removed, depending on aeration efficiency.
- Can anaerobic secondary treatment improve energy-positive operations at wastewater treatment plants?
- Cite this: Environ. Sci. Technol. 2025, 57, 45, 17225–17236 Anaerobic secondary treatment has the potential to facilitate energy-positive operations at wastewater treatment plants, but post-treatment of the anaerobic effluent is needed to recover dissolved methane and nutrients and remove sulfide.
- How long should the anaerobic cycle be in textile wastewater treatment?
- In the textile wastewater treatment, a slightly higher COD removal of 90% with an anaerobic/aerobic cycle of 17.5/2.5 h was achieved compared to COD removal of 87% with an anaerobic/aerobic cycle of 14/6 h. It was found that the duration of the anaerobic phase should be long enough to obtain better COD and color removal .
