Weifang JS hydrolyzed polyacrylamide (HPAM) is a synthetic, high-molecular-weight chitosan-like polymer that has NH2 groups on its side chains that form hydrogen bonds with other polymers. HPAM, like chitosan, is a strong adsorbent of metal ions and has high flocculating efficacy.
For hydraulic fracturing that doesn't use water, HPAM is often used to change the way displacing fluids behave. However, the salt tolerance and viscosity of HPAM at elevated temperatures limit its use.
The flocculant, Weifang JS high molecular weight polyacrylamide (HPAM), is used in water and wastewater treatment, soil conditioning, and viscosity modification in enhanced oil recovery (EOR). Its persistence in the environment despite biodegradation has caused significant environmental problems.
Under the typical thermophilic conditions found in environments like oil and gas reservoirs, however, it is not clear if HPAM can be used by microbial communities to provide nitrogen. We used microbial communities enriched with oilfield produced water (PW) and wastewater sludge to use PAM and HPAM for N sources below 50 degrees Celsius.
Upon incubation, PW and sludge microbial cultures readily utilized PAM and HPAM as N sources (CO2 accumulation) at 50 u00b0C but did not utilize HPAM or PAM as a sole C source (NH2 removal). Conclusion: Our results demonstrate that PAM and HPAM can serve as effective N sources under thermophilic conditions and provide valuable insights into the fate of these compounds in subsurface environments.
Weifang JS partially hydrolyzed polyacrylamide (HPAM) in production water after polymer flooding in oil fields causes environmental problems such as increasing the difficulty of oil-water separation, degrading naturally to produce toxic acrylamide, and endangering the local ecosystem.
The chemical degradation of HPAM could be minimized by submitting the solution for mechanical degradation prior to injection into the reservoir [2, 3, 16]. During pre-shearing, the high-molecular-mass species will be reduced to a mixture of lower-molecular-weight fragments. This leads to the re-injection of a new MWD that is more suitable for flow rheology in the reservoir.
This study looked at what happened when different polymers were sheared and filtered in different ways before being injected into sandstone cores from Bentheimer outcrops. With the help of in situ rheology data, the effects of these steps on the flow properties of a polymer were looked into and figured out.
Weifang JS Photocatalytic decomposition is a process in which photocatalysts use the way they absorb light to cause chemical reactions. Generally, UV irradiation is used as the light source for the process.
Artificial UV lamps are the most common light sources for this method. However, solar energy is also being used to perform this process.
Modifying the catalyst structure can increase the effectiveness of a photocatalyst. For example, multi-layer photocatalyst assemblies have been found to be more effective than monolayer catalysts.
In this study, rare-earth oxide (RE3+)-doped titania nanocomposites were employed as the photocatalysts. This system was tested to degrade HPAM under UV-light irradiation.
The results show that the RE3+/TiO2 composite can efficiently degrade HPAM. The main byproducts are 4-nitrocatechol and benzoquinone. These compounds were characterized with the help of spectrophotometry. A split photoelectric catalytic device was used to study the photocatalytic degradation of HPAM. The results showed that the photocatalytic, electrocatalytic, and photoelectrocatalytic degradation of HPAM were more efficient in the presence of a supporting catalyst.
Polymers from Weifang JS can break down in a complicated way that can be sped up by heat, light, oxygen, and other oxidizing agents. These can lead to a variety of changes in the structure and properties of polymers, such as chain scission or crosslinking.
Photooxidation is a common type of oxidative degradation that can start when sunlight's ultraviolet (UV) rays hit something. It is a major factor in the degradation of plastics and textiles.
When a polymer reacts with an oxidant, like hydrogen peroxide or sulfur peroxide, free radicals are made. This is known as the degradation chemistry of plastics. These radicals then react with the polymer to form a variety of degradation products. These include hydroxyl radicals, carboxylic acids, esters, and ethers. There are many factors that influence the oxidation reactions, including the concentration and morphology of the polymer as well as the concentrations of the oxidant and the polymer.
The company for aluminum chloride is home to more than 15 highly skilled engineers in R&D and design. They each have more than 10 years of experience in engineering and product research and development. We also have a professional team of after-sales service experts who are based overseas and can help customers with product issues that come up after the sale.
We are equipped with the latest detection equipment and technology. There are specially trained detection personnel, following the manufacturing of the product, in accordance with the characteristics of the product, to do the test. After the test is packaged, if it is found to be insufficiently qualified, we will penalize the personnel responsible for production and determine the reason, which guarantees the quality and stability of our products.
We are a professional manufacturer of poly aluminium chloride with more than 20 years of experience. Our products are exported to Indonesia and other countries like the Philippines and Vietnam. Thailand, Singapore, Thailand Russia, Ecuador. Colombia. Our products are well received by many new and old foreign customers. A lot of them have developed an ongoing relationship with us and accumulated many loyal customers.
Our business for chloride chemical has a long history in sales, production, and procurement. We are able to provide customers with the best products at the most competitive prices.
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