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    2018-9-7 · Xiong, B., Loss, R.D., Shields, D. et al. Polyacrylamide degradation and its implications in environmental systems. npj Clean Water 1, 17 (2018). https://doi.org/10.1038/s41545-018-0016-8

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    DOI: 10.1038/s41545-018-0016-8 Corpus ID: 135203788. Polyacrylamide degradation and its implications in environmental systems @article{Xiong2018PolyacrylamideDA, title={Polyacrylamide degradation and its implications in environmental systems}, author={Boya Xiong and R. D. Loss and D. Shields and Taylor Pawlik and Richard Hochreiter and A. Zydney and Manish Kumar}, journal={npj Clean Water ...

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    Polyacrylamide degradation and its implications in. Sep 07, 2018· High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a . Cited by: 2; Polyacrylamide(PAM) water treatment agent XUNYU GROUP

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    The analysis of the polyacrylamide and its degradation products by SEC showed that the molecular weight of the polyacrylamide had reduced from 2000 to 500 kDa during the E. agglomerans cultivation. However, two commercial brands were tested as well, and they were degraded to lesser extents, approximately half of that obtained with the ...

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    High molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing. These applications of PAM can result in significant environmental challenges, both in water management and in ...

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    REVIEW ARTICLE OPEN Polyacrylamide degradation and its implications in environmental systems Boya Xiong1, Rebeca Dettam Loss 2, Derrick Shields 2, Taylor Pawlik , Richard Hochreiter , Andrew L Zydney and Manish Kumar1,2 High molecular weight (106–3×107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity ...

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    2018-3-1 · Moreover, cPAM and its degradation metabolites such as polyacrylic acid, acrylic acid, and acrylamide would co-exist in the digestion system (Chang et al., 2001, Dai et al., 2015, Haveroen et al., 2005), thus the toxicity of cPAM and its degradation metabolites to the bio-conversion processes involved in anaerobic digestion is also needed to be ...

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    SNF Taixing is the largest supplier of polyacrylamide in China, producing enough of the chemical to treat more than 15 billion cubic meters wastewater annually. “IFC’s long-term financing enables us to make our Taixing plant a world-class operation and to offer competitive products to more Chinese clients,” said Pascal Remy, Chairman of ...

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    2016-6-1 · The degradation of alginate and its derivatives by fecal microbiota obtained from six volunteers was determined by TLC and presented in Fig. 2.In general, Alg, MO and GO could be completely degraded into oligosaccharides or monosaccharide after 24 h fermentation by human fecal microbiota, but the rates of degradation, which was evidenced as the time point for disappears of the original dot …

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    China's political and economic involvement abroad. As a far-reaching infrastructure development and investment strategy, officially involving more than 130 countries, the expansion of the BRI raises important questions about its environmental impacts and its implications for environmental governance. This article examines how China

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    2021-5-13 · Understanding the role of policy frameworks in developing land degradation in stakeholders perception from a post‐conflict perspective in Bosnia and Herzegovina. Marijana Kapović Solomun. Carla S. S. Ferreira. Nichole N. Barger. Radislav Tošić. Saša Eremija.

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    2019-6-7 · Protein degradation in clinical samples is largely unexplored. Here, the authors analyze the transcriptome and proteome of clinical tissue samples and develop an algorithm to assess protein ...

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    Polyacrylamide is relatively stable to heat with its solid only being softened at 220~230 °C and its solution subjecting to significant degradation only at above 110 °C. Polyacrylamide is insoluble in benzene, toluene, xylene, gasoline, kerosene, diesel fuel, but soluble in water.

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    2021-6-13 · 1 Title: Transfer and degradation of polyacrylamide based flocculants in hydrosystems: a review 2 3 Authors: A. G. Guezennec1, C. Michel1, K.Bru1, S. Touze1, N. Desroche2, I. Mnif3, M. Motelica-Heino4 4 1 BRGM 5 2 Nexidia SAS, 15 Rue de Mayence 21000 DIJON France 36 Université de Nice 7 4 ISTO, UMR 7327 CNRS-Université d’Orléans, 1A rue de la Férollerie, 45071 Orléans cedex 2

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    2013-9-1 · In 2011, China exported about one fifth of its production: 56 percent went to Japan, 14 percent to the USA, 10 percent to France, and three percent to Germany (State Council, 2012). The Japanese share dropped below 50 percent in the first half of 2012, as the country is diversifying its import sources ( People’s Daily, 2012a ).

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    2018-5-18 · Cationic polyacrylamide copolymers (PAMs) are used for sludge dewatering in municipal waste water treatment and might enter the environment by spreading of the sludge on agricultural land. Concern has been expressed since little is known about the degradation of PAMs in soils. To obtain detailed information on the polymer’s fate in the soil compartment, the degradation of 14C …

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    2018-8-20 · Environmental context Polyacrylamide and its derivatives may enter the natural environment as a consequence of their wide use in various industrial applications. This study demonstrates the application of a quartz crystal microbalance and atomic force microscopy to study the molecular interactions between polyacrylamides and humic acids under various solution chemistries. The …

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    2019-4-30 · AbstractThis review describes the mechanisms responsible for low-temperature degradation (LTD) of zirconia ceramics and its detrimental consequences for biomedical devices. Special emphasis is given to the critical issue of zirconia degradation actually observed for hip prostheses. Experimental methods to accurately measure and predict LTD in a given zirconia ceramic are presented. Different ...

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    2020-1-29 · Abroad, China’s transactionalism makes its base of support both shallow and vulnerable to political resistance. In addition, the example of its authoritarian system lacks widespread appeal: to the contrary, its repression of Hong Kong, its mass internment of Uighurs, its development of the world’s most sophisticated surveillance state, and its intensifying crackdown on political dissidents ...

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    2016-7-22 · The MDB is experiencing its worst drought since 1891. Years of over-allocation of water to irrigators in the basin, and the severity of the current drought have led to the system enduring significant environmental degradation and declining resource security. Water management in the MDB has become a major political issue (Connell 2007).

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    2007-1-18 · ZhongLei Fan, SiYe Tang, DaZhuang Liu and DongSheng Zhu, “Research Progress of Chlorinated Polypropylene”, China Modern Chemical Industry (Chinese), 12(2004) 16-19. 5. Hsing-YuanYen and Mu-Hoe Yang, “The Ultrasonic Degradation of Polyacrylamide Solution”, Polymer Testing, 22 (2003) 129-131. 6.

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    2011-6-17 · The basics. Agarose gels can be used to resolve large fragments of DNA. Polyacrylamide gels are used to separate shorter nucleic acids, generally in the range of 1−1000 base pairs, based on the concentration used (Figure 1). These gels can be run with or without a denaturant. Gels that are run without a denaturant are referred to as native gels.

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    Facing a growing amount of waste electrical and electronic equipment (WEEE), a recent recast of the WEEE directive has put a specific reuse target for manufacturers, aiming to reduce environmental pollution and incentivize a green product design. In this paper, in order to examine whether the above two goals can be achieved by setting a specific reuse target, we have modelled a closed-loop ...

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    Paeoniflorin (PF) is the major active ingredient in the traditional Chinese medicine Radix. It plays a neuroprotective role by regulating autophagy and the ubiquitin-proteasome degradation pathway. In this study, we found PF significantly reduced cell damage caused by MPP+, returning cells to normal state. Cell viability significantly improved after 24 h exposure to RAPA and PF in the MPP+ ...

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    2018-11-26 · Solid-state fermentation (SSF) was carried out in this study to improve the nutritional digestibility of two types of distilled dried grain with solubles (DDGS) by inoculating probiotic combinations. The fermented DDGS (FDDGS) contained more crude protein, small peptides and total amino acids than did unfermented DDGS. The concentrations of fiber indexes significantly declined …

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    Air Pollution in China is a Big Issue – Here’s What To Do (Even If You Live Far Away!) This is a Guest Post by C.N. Moore. I n what has progressed into some of the biggest environmental news, China has a serious air quality problem.In a world where air pollution is an ever-increasing global issue, China currently seems to stand a head and shoulders above the rest.

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  • The Social Implications of the Degradation of the

    2016-7-22 · The MDB is experiencing its worst drought since 1891. Years of over-allocation of water to irrigators in the basin, and the severity of the current drought have led to the system enduring significant environmental degradation and declining resource security. Water management in the MDB has become a major political issue (Connell 2007).

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    2007-1-18 · ZhongLei Fan, SiYe Tang, DaZhuang Liu and DongSheng Zhu, “Research Progress of Chlorinated Polypropylene”, China Modern Chemical Industry (Chinese), 12(2004) 16-19. 5. Hsing-YuanYen and Mu-Hoe Yang, “The Ultrasonic Degradation of Polyacrylamide Solution”, Polymer Testing, 22 (2003) 129-131. 6.

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    2014-3-27 · Therefore, the present study in China is the first long-term large scale study on G3P[8] rotaviruses outside the US. Conventionally, rotavirus genome has been detected and studied by migration pattern of the 11 segments in polyacrylamide gel electrophoresis (PAGE), i.e., RNA pattern or electropherotype.

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    Fate of antibiotics and antibiotic resistance genes in a full-scale restaurant food waste treatment plant: Implications of the roles beyond heavy metals and mobile genetic elements. Pinjing He et al. Journal of environmental sciences (China), 85, 17-34 (2019-09-01)

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    2018-11-26 · Solid-state fermentation (SSF) was carried out in this study to improve the nutritional digestibility of two types of distilled dried grain with solubles (DDGS) by inoculating probiotic combinations. The fermented DDGS (FDDGS) contained more crude protein, small peptides and total amino acids than did unfermented DDGS. The concentrations of fiber indexes significantly declined …

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    Heavy Manufacturing of Power Plants. (Updated March 2021) A critical issue for accelerating nuclear power plant construction is the availability of heavy engineering plants to make the reactor components, especially for those units of more than 1100 MWe. The supply challenge is not confined to the heavy forgings for reactor pressure vessels ...

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    2008-1-1 · Bangladeshs’ textile industry, which includes knitwear and RMG along with specialized textile products, is the nation’s number one export earner. Despite the significant economic contribution of the textile industries in Bangladesh, it has brought with it a range of environmental problems, mostly pollution of water resources of the country.

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    2011-6-17 · The basics. Agarose gels can be used to resolve large fragments of DNA. Polyacrylamide gels are used to separate shorter nucleic acids, generally in the range of 1−1000 base pairs, based on the concentration used (Figure 1). These gels can be run with or without a denaturant. Gels that are run without a denaturant are referred to as native gels.

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    2019-9-15 · Polyacrylamide gel contains 2.5–5% of polyacrylamide suspended in 95–97.5% water [1, 2]. It has been available for use in breast augmentation (known as Formacryl, Contura SA) since 1997 in China and the former Soviet Union [3, 4].

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    Semi-continuous degradation of cypermethrin by immobilized cells of strain CPN 1. The results of the semi-continuous degradation of 10 and 20 mM cypermethrin by cells of Micrococcus sp. strain CPN 1 immobilized in PUF, alginate, polyacrylamide and agar are shown in Figure 2A and B. The PUF-immobilized cells can be reused for up to 32 cycles ...

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    2020-6-2 · Excellent Double IEC tests with degradation less than 3% Excellent mechanical load results In the dynamic load test the front-side power degradation rate is 0.6%, and the back-side power degradation rate is 1.68% In the static load test the front-side power degradation is only 0.3%, and the back-side power degradation is 1.82%

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    2018-3-2 · Nondegradable polyamides with protein-like properties were designed and prepared as a copolymeric hydrogel by the free-radical polymerization of acrylamide with a …

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  • Synthesis of Polyacrylamide Nanogels by

    2021-2-8 · 4.1 Natural forest status. The Asia-Pacific Region includes over 552 million hectares of forests, including 478 million hectares of natural forests, but only about 249 million hectares are presently considered as available for harvest.Insular SE Asia and East Asia dominate in terms of both total natural forests and the area available for harvesting (Figure 4).

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    2015-5-28 · Nucleophosmin-1 (NPM1) is the most frequently mutated gene in acute myeloid leukemia (AML).Addition of retinoic acid (RA) to chemotherapy was proposed to improve survival of some of these patients. Here, we found that RA or arsenic trioxide synergistically induce proteasomal degradation of mutant NPM1 in AML cell lines or primary samples, leading to differentiation and apoptosis.

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    2015-4-22 · Its purpose: support critical technology development and help identify the most suitable business models, partners, and financing mechanisms for long-term impact. Stanford University 4 years 9 …

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  • Sodium Dichloroisocyanurate (SDIC) Manufacturer in

    2021-7-6 · Sodium dichloroisocyanurate SDIC is a broad-spectrum disinfectant, sterilizer, and algicidal deodorant. It has the advantages of strong sterilization, good stability, low toxicity, and no pollution. It can quickly kill viruses, bacteria, and spores that can effectively prevent hepatitis and …

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  • Experimental Investigation of Polymer-Induced

    2021-2-10 · A type of partially hydrolyzed polyacrylamide (numbered as Flopaam™ 3630s; provided by SNF Floerger), with a narrow molecular weight range of 18 to 20 million Da, is used in this study. This polymer can produce a copolymer of acrylamide and acrylic acid after hydrolyzing, and its recommended hydrolysis degree is 30%.

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    Indonesia is potentially a key supplier of biofuels, especially oil palm-based biodiesel, to world markets. In 2006, the country had 4.1 million ha of oil palm plantation, 31% of the world total (Koh and Wilcove 2008). By 2010, the plantation area increased to about 7.2 million ha of oil palm, which

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    2013-7-23 · Previous studies have shown that the small molecule iron transport inhibitor ferristatin (NSC30611) acts by down-regulating transferrin receptor-1 (TfR1) via receptor degradation. In this investigation, we show that another small molecule, ferristatin II (NSC8679), acts in a similar manner to degrade the receptor through a nystatin-sensitive lipid raft pathway.

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    2019-4-26 · Light degradation and nutrient loss: ‘Consumer awareness needs to be raised’. Our mission is to provide and share B2B knowledge enabling people to succeed in business. We accomplish this by providing high-value information and research, robust online and print journalism, innovative exhibitions and conferences, and revered awards.

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    2018-9-4 · Plant homeodomain finger protein 8 (PHF8) serves an activator of epithelial-mesenchymal transition (EMT) and is implicated in various tumors. However, little is known about PHF8 roles in hepatocellular carcinoma (HCC) and regulating E-cadherin expression. PHF8 expression pattern was investigated by informatic analysis and verified by RT-qPCR and immunochemistry in HCC tissues …

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    2018-4-19 · Pharmaceuticals, Personal Care Products, and Endocrine Disruptors in Water: Implications for the Water Industry. ... 2 Decorated Titanate Nanotubes with Oxidation Property and Photocatalytic Activity for Enhanced Degradation of 17β-Estradiol under Solar Light ... Pharmaceuticals pollution of aquaculture and its management in China. Journal of ...

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    The business enterprises are increasingly focusing on buying and supplying of products and services in a manner to reduce the adverse impacts on the environment, society, and economy. In view of the above, the concept of sustainable supply chain management (SSCM) has received attention of the industry and academia due to its importance on environmental, social and corporate responsibility ...

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    2017-5-10 · Quizalofop-p-ethyl (QPE) is a post-emergence herbicide that effectively controls grass weeds and is often detected in the environment. However, the biochemical and molecular mechanisms of QPE degradation in the environment remains unclear. In this study, a highly effective QPE-degrading bacterial strain J-2 was isolated from acclimated activated sludge and identified as a Pseudomonas sp ...

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    2017-3-31 · To receive certification, an assessor must visit a company and examine its products. In order to get certification level 1, the assessor must be able to confirm that their products have achieved their design goals, and have been thoroughly documented. For levels 2-5, the assessor interviews employees and managers, and examines the company’s ...

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