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  • Biodegradation of polyacrylamide by bacteria isolated

    2010-3-15 · The experimental results indicated that PAM can be degraded by pure bacterial strains with a relatively high efficiency (>70%) using PAM as the sole carbon source. The degradation can be influenced by the initial concentration of the PAM, with a determinate proportion of PAM able to be degraded by the microbial cells when 50–1000 mg L −1 of the initial PAM was supplied.

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  • Biodegradation of hydrolyzed polyacrylamide by a

    2019-9-1 · Hydrolyzed polyacrylamide (HPAM) is the most widely used water-soluble linear polymer with high molecular weight in polymer flooding. Microbiological degradation is an environment-friendly and effective method of treating HPAM-containing oilfield produced water.

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  • Biodegradation of Partially Hydrolyzed Polyacrylamide

    Request PDF | Biodegradation of Partially Hydrolyzed Polyacrylamide HPAM Using Bacteria Isolated from Omani Oil Fields | In present study the biodegradation of partially hydrolyzed polyacrylamide ...

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    Synthesis of high molecular weight polyacrylamide flocculant by radiation polymerization, Journal of Applied Polymer Science | 10.1002/app.1976 It is noteworthy that the rate of polymerization is very high (G-value of monomer consumption is 105-106) and even at a dose rate lower than lo3 rad/hr, the polymer yield reaches 100%after a reaction ...

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    2015-11-23 · High purity Acrylamide CAS No.: 9003-05-8 Purity: 99%%min 1 USD/Gram Jilin Tely Imp & Exp Co., Ltd Factory Supply Polyacrylamide CAS No.: 9003-05-8 Purity: 99.90% 0.1 USD/Kilogram Amitychem Corporation

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    Hot Sale Free Sample Polyacrylamide CAS 9003-05-8 with Best Price. FOB Price: US 20-90 kg. Min. Order: 1 kg. CAS No.: 9003-05-8. Formula: C3h5no. EINECS: 231-545-4. Type: Pharmaceutical Intermediates. Appearance: Powder. Quality: Technical.

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  • Biodegradation of partially hydrolyzed polyacrylamide

    Partially hydrolyzed polyacrylamide (HPAM) in production water after polymer flooding in oil filed causes environmental problems, such as increases the difficulty in oil-water separation, degrades naturally to produce toxic acrylamide and endanger local ecosystem. Biodegradation of HPAM may be an efficient way to solve these problems.

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    The biodegradation of polyacrylamide (PAM) includes the hydrolysis of amino groups and cleavage of the carbon chain; however, the effect of molecular weight on the biodegradation needs further investigations. In this study, biodegradation of low molecular weight PAM (1.6 × 10 6 Da) was eva …

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  • Degradation of Polyacrylamide (PAM) and methane

    2020-6-16 · Polyacrylamide (PAM) is generally employed in wastewater treatment processes such as sludge dewatering and therefore exists in the sludge. Furthermore, it degrades slowly and can deteriorate methane yield during anaerobic digestion (AD). The impact or fate of PAM in AD under thermophilic conditions is still unclear. This study mainly focuses on PAM degradation and enhanced methane …

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    2015-11-23 · High purity Acrylamide CAS No.: 9003-05-8 Purity: 99%%min 1 USD/Gram Jilin Tely Imp & Exp Co., Ltd Factory Supply Polyacrylamide CAS No.: 9003-05-8 Purity: 99.90% 0.1 USD/Kilogram Amitychem Corporation

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  • (PDF) Biodegradation of Griseofulvin by Bacillus

    The polyacrylamide gel electrophoresis was used for determining the Griseofulvin degrading enzyme purity, together with retention factor (Rf) and molecular masses (Mr). ... The biodegradation ...

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  • high purity polyacrylamide dose rate | Factory Supply

    Synthesis of high molecular weight polyacrylamide flocculant by radiation polymerization, Journal of Applied Polymer Science | 10.1002/app.1976 It is noteworthy that the rate of polymerization is very high (G-value of monomer consumption is 105-106) and even at a dose rate lower than lo3 rad/hr, the polymer yield reaches 100%after a reaction ...

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    2015-11-23 · High purity Acrylamide CAS No.: 9003-05-8 Purity: 99%%min 1 USD/Gram Jilin Tely Imp & Exp Co., Ltd Factory Supply Polyacrylamide CAS No.: 9003-05-8 Purity: 99.90% 0.1 USD/Kilogram Amitychem Corporation

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  • Removal of Acrylamide by Microorganisms - IntechOpen

    2013-10-7 · as a precursor in the production of several polymers, such as polyacrylamide [1, 19]. High molecular weight polymers can be modified to develop nonionic, anionic, or cationic proper‐ ties for specific uses [1, 20]. Various grades of acrylamide are available with the industrial grade typically with a purity of 98 to 99%.

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  • The rapid degradation of bisphenol A induced by the ...

    2017-2-16 · In the present study, sediment was spiked with bisphenol A (BPA) solution to explore the interaction between indigenous bacterial communities and BPA biodegradation in sediment. Results showed that BPA could be adsorbed to the sediment and then biodegraded rapidly. Biodegradation efficiency of BPA in treatments with 10 and 50 mg/L BPA reached 64.3 and 61.8% on the first day, …

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  • Anaerobic biodegradation of decabromodiphenyl

    2016-9-1 · Here we aimed to evaluate the biodegradation of 20 mg kg −1 BDE-209 in anaerobic microcosms by organic compost treatments, which contained high biological activity of anaerobic/facultative bacteria and thus more bioavailability of carbon resources and electron donors. The anaerobic microcosms were added to the mixture of BDE-209 – polluted ...

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    2019-8-31 · Abstract: High-density polyethylene (HDPE) is a widely used organic polymer and an emerging pollutant, because it is very stable and nonbiodegradable. Several fungal species that produce delignifying enzymes are known to be promising degraders of recalcitrant polymers, but research on the decomposition of plastics is scarce.

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    2015-11-23 · High purity Acrylamide CAS No.: 9003-05-8 Purity: 99%%min 1 USD/Gram Jilin Tely Imp & Exp Co., Ltd Factory Supply Polyacrylamide CAS No.: 9003-05-8 Purity: 99.90% 0.1 USD/Kilogram Amitychem Corporation

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    Polyacrylamide (PAM, Mw 10,000) is a low molecular weight nonionic water-soluble polymer used as an additive in CMP slurries, various printing applicatons, and

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  • Isolation and identification of the sulphate-reducing ...

    Biodegradation of polyacrylamide begins with amidase catalysed deamination of polyacrylamide to ammonia and polyacrylate. ... using high-purity nitrogen to drive out air at 37°C without shaking ...

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  • Biodegradation of p -cresol by immobilized cells of ...

    2008-7-20 · The Bacillus sp. strain PHN 1 capable of degrading p-cresol was immobilized in various matrices namely, polyurethane foam (PUF), polyacrylamide, alginate and agar. The degradation rates of 20 and 40 mM p-cresol by the freely suspended cells and immobilized cells in batches and semi-continuous with shaken cultures were compared. The PUF-immobilized cells achieved higher …

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  • Biodegradation of pyridine by freely suspended and ...

    Freely suspended and Ca-alginate-immobilized cells of Pimelobacter sp. were used for degradation of pyridine. When the pyridine concentration was up to 2 g l−1, freely suspended cells completely degraded pyridine regardless of the initial cell concentrations used. However, when the pyridine concentration increased to 4 g l−1, the initial cell concentration in freely suspended cell culture ...

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  • Aerobic Biodegradation of 2-Picolinic Acid by a

    2020-3-6 · DYCP-31DN (Beijing Liuyi Instrument Factory, China), and the electrophoresis image-forming instrument used was a FR980 (Sha nghai . Aerobic Biodegradation of 2-Picolinic Acid by a Comamonas Sp. Wang Qiaorui, Zheng Chunli*, Fan Yurui, Shen Zhenxing, Han Wenhao and Du Miaomiao

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  • Biodegradation of Tetrahydrofuran by the Newly Isolated ...

    2020-8-5 · bacteria to e ciently degrade THF when under the stress of high substrate concentrations. Filamentous fungi are involved in multiple pathways associated with wastewater treatment, such as organic compound biodegradation, the formation of sludge flocs, settleability of the treated sludge, and sludge detoxification [18].

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  • cation polyacrylamide 9003-05-8 Purity 90%

    2012-3-7 · Purity: 90% Usage: 1. It is used as a flocculant in water treatment industry. Also used in petroleum geology drilling configuration for removing non-dispersing low solid phase mud. 2. It can be used as setting agent in sugar industry settling agent (sugar co-agent); film formers. 3.

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  • China High Polymer Anionic Polyacrylamide

    2020-6-16 · Polyacrylamide (PAM) is generally employed in wastewater treatment processes such as sludge dewatering and therefore exists in the sludge. Furthermore, it degrades slowly and can deteriorate methane yield during anaerobic digestion (AD). The impact or fate of PAM in AD under thermophilic conditions is still unclear. This study mainly focuses on PAM degradation and enhanced methane …

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  • Degradation of Polyacrylamide (PAM) and methane

    High quality High Purity Nonionic Polyacrylamide High Efficiency For Water Treatment from China, China's leading pam chemical water treatment product, with strict quality control non ionic polyacrylamide factories, producing high quality non ionic polyacrylamide products.

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    High Purity Polyacrylamide supplier in China 9003-05-8 Suppliers,provide High Purity Polyacrylamide supplier in China 9003-05-8 product and the products related with China (Mainland) High Purity Polyacrylamide supplier in China 9003-05-8 Changsha Easchem Co.,Limited China (Mainland)

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  • High Purity Polyacrylamide supplier in China,

    2015-11-23 · High purity Acrylamide CAS No.: 9003-05-8 Purity: 99%%min 1 USD/Gram Jilin Tely Imp & Exp Co., Ltd Factory Supply Polyacrylamide CAS No.: 9003-05-8 Purity: 99.90% 0.1 USD/Kilogram Amitychem Corporation

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    Polyacrylamide (PAM, Mw 10,000) is a low molecular weight nonionic water-soluble polymer used as an additive in CMP slurries, various printing applicatons, and

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    Polyacrylamide Price - Select 2021 high quality Polyacrylamide Price products in best price from certified Chinese APAM manufacturers, Nonionic Polyacrylamide suppliers, wholesalers and factory on Made-in-China.com, page 2

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    2013-11-12 · This work was aimed at studying the possibility of biodegrading 4-nonylphenol and low ethoxylated nonylphenol mixtures, which are particularly recalcitrant to microbial degradation, by employing a biofilm reactor packed with a ceramic support (Vukopor® S10). A selected microbial consortium (Consortium A) was used to colonize the support. 4-Nonylphenol and ethoxylated …

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    High Purity Ultrafine Cerium Stearate White Powder Of Biodegradation Agent , Find Complete Details about High Purity Ultrafine Cerium Stearate White Powder Of Biodegradation Agent,Cerium Stearate Powder,Cerium Stearate Of Biodegradation Agent,Cerium Stearate from Plastic Auxiliary Agents Supplier or Manufacturer-Hangsun Plastic Additives Co., Ltd. Jingjiang

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    2021-6-15 · Production of High Purity Biosurfactants Using Heavy Oil Residues as Carbon Source ... ganisms during biodegradation, thus increasing the bioavailability of the organic pollutants. It is their ... HOF are high in asphaltene concentrations by-products of the oil refining industry.

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  • Production of High Purity Biosurfactants Using Heavy Oil ...

    2021-5-12 · molecules of high molecular weight [6]. Plastics are cheap, durable, resistant to degradation, and highly versatile, making them suitable to be used in a wide range of consumers and industrial applications. Despite the advantages possessed by petroleum-derived plastics, this has caused alarm with regard to large-scale pollutant [7].

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  • A Review of the Applications and Biodegradation of ...

    Biodegradation of such chemicals by microorganisms may provide an cost-effective method for their detoxification. We have investigated the degradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 in various matrices such as, polyurethane foam (PUF), polyacrylamide…

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  • Biodegradation of cypermethrin by immobilized cells

    2016-3-14 · The worldwide application of synthetic water-soluble polymers brings about an environmental issue related to the pollution of water and soil (Chiellini et al. 2003).Polyacrylamide (PAM) is a typical water-soluble polymer with -[CH 2-CH]- repeating units linked by amide (−CONH 2) or carboxyl (−COOH) groups.Due to its high stability and widespread use, PAM can substantially accumulate in ...

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    2020-8-5 · Microorganisms 2020, 8, 1190 4 of 14 where max is the maximum specific growth rate (h1), S is the substrate concentration (mg/L), Ks is the half-saturation constant (mg/L), and Ki is the inhibition constant (mg/L). Thus, the specific degradation rate (v) can be calculated using the specific growth rate ( ) and growth yield (Yx/s) as below [37]: v =

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  • Biodegradation of Tetrahydrofuran by the Newly Isolated ...

    2020-3-6 · DYCP-31DN (Beijing Liuyi Instrument Factory, China), and the electrophoresis image-forming instrument used was a FR980 (Sha nghai . Aerobic Biodegradation of 2-Picolinic Acid by a Comamonas Sp. Wang Qiaorui, Zheng Chunli*, Fan Yurui, Shen Zhenxing, Han Wenhao and Du Miaomiao

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    2012-3-7 · Purity: 90% Usage: 1. It is used as a flocculant in water treatment industry. Also used in petroleum geology drilling configuration for removing non-dispersing low solid phase mud. 2. It can be used as setting agent in sugar industry settling agent (sugar co-agent); film formers. 3.

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    2017-9-19 · However, the high molasses concentration inhibited the function of MECs. Nevertheless, anionic polyacrylamide (APAM) pretreatment of molasses was noted to be effective for succinic acid production in MECs even at an initial sugar concentration of 75 g L ‐1.

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    Biodegradation of partially hydrolyzed polyacrylamide by immobilized bacteria isolated from HPAM‐containing wastewater - Liu - 2016. The special function bacteria R2 was screened from hydrolyzed polyacrylamide (HPAM)‐containing wastewater that could use HPAM as the sole carbon source and nitrogen source.

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    High quality High Purity Oil Field Chemicals 100 Mesh Anionic Polyacrylamide Fine Powder from China, China's leading chemicals for oil and gas industry product, with strict quality control oilfield drilling chemicals factories, producing high quality oilfield drilling chemicals products.

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    Biodegradation of such chemicals by microorganisms may provide an cost-effective method for their detoxification. We have investigated the degradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 in various matrices such as, polyurethane foam (PUF), polyacrylamide…

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  • Examining the elemental contribution towards the ...

    2016-3-15 · The Mg–Zn–Ca metallic glass system has been the focus of recent studies as a prospective material for biodegradable implants. To date, the influence each alloying element has on the degradation behaviour of this class of alloy is still not well understood. This study employs electrochemical polarisation and

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  • Biodegradation of Naphthalene by Pseudomonas stutzeri

    2018-6-2 · Thus, K-carrageenan, alginate, agar, polyacrylamide-hydrazide, and polyurethane foam have been used suc-cessfully for the immobilization of microorganisms. Alginate has several advantages over others. In addi-tion to its high porosity and chemical stability, it of-fers a mild, fast, simple, and cheap immobilization method (Fukui and Tanaka, 1982).

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    2021-6-2 · cause of its high content of extracellular polymers (EPS) that protect bacterial cells. Also, the presence of zones with different oxic conditions in the granule structure favors high Figure 1. Pathways of BPA biodegradation [10]. In biological reactors, different types of …

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  • High rate oxygen reduction reaction during corrosion

    2020-12-23 · Commercially pure Mg (CP-Mg) and ultra-high-purity Mg (UHP-Mg; the elemental composition shown in Table 2) were machined in the rod shape (Φ = 2 mm) and embedded in epoxy resin with a round face ...

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    Rheological Properties of Partially Hydrolyzed Polyacrylamide . The specific surface area is 150 m2/g measured by the BET method, and the corresponding specific weight is 2.4 g/ml. Partially hydrolysed polyacrylamide (HPAM) was purchased from Shandong Tongli Chemical Co. Ltd China, which has a molecular weight of 5-22 million g/moland relative density of 1.302 g/cm3.Sodium chloride (ACS ...

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  • SciELO - Brasil - Biodegradation of cypermethrin by ...

    Biodegradation of such chemicals by microorganisms may provide an cost-effective method for their detoxification. We have investigated the degradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 in various matrices such as, polyurethane foam (PUF), polyacrylamide…

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    2021-5-8 · high purity dibutil phtalato DBP from Mexico. Hot Products. Dioctyl Phthalate(DOP) Dioctyl terephthalate DOTP. Dibutyl Phthalate (DBP) ... Flexitank For Dbp suppliers, wholesalers and factory. Get Inquiry. Global Dibutyl Phthalate Dbp Market Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029 ...

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    2018-6-2 · Thus, K-carrageenan, alginate, agar, polyacrylamide-hydrazide, and polyurethane foam have been used suc-cessfully for the immobilization of microorganisms. Alginate has several advantages over others. In addi-tion to its high porosity and chemical stability, it of-fers a mild, fast, simple, and cheap immobilization method (Fukui and Tanaka, 1982).

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  • Biodegradation of Decabromodiphenyl Ether (BDE-209)

    2015-9-18 · degradation, and biodegradation [10–13]. Among these, biodegradation has become popular because it has advantages of low cost, high removal efficiency, and non-pollution [14]. Weifang city of Shandong province has developed into the biggest base of BFRs in China, produces and sells BDE-209 to many areas of Asia [15].

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  • Biodegradation of 3-methyldiphenylether (MDE) by ...

    2016-12-20 · 3-Methyldiphenylether (MDE) is an important alkyl-substituted diphenyl ether compound that is widely used as an intermediate in the synthesis of …

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  • Biodegradation of gentamicin by bacterial consortia

    2017-9-8 · Gentamicin (purity, 99.99%), composed of C1a, C2, C2a and C1 (Fig. S3), was obtained from Zhichu Pharmaceutical Factory (ZPF) in Shandong Province, …

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    Biodegradation of partially hydrolyzed polyacrylamide by immobilized bacteria isolated from HPAM‐containing wastewater - Liu - 2016. The special function bacteria R2 was screened from hydrolyzed polyacrylamide (HPAM)‐containing wastewater that could use HPAM as the sole carbon source and nitrogen source.

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    Polyacrylamide is a white particle which is a linear polymer compound soluble in water. It is non-toxic and tasteless, easy to absorb moisture, insoluble in organic solvents such as ethanol and acetone, and has a positively charged active group on the molecular chain, and has excellent flocculation effect.

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    2021-6-27 · AQUALANE® hydrocarbon fluids are suited to the production of polyacrylamides by reverse emulsion polymerization, as well as the lubrication of blades for the production of powder polyacrylamides. These solvents and meet the most stringent safety and environmental standards applicable in water treatment, the paper industry, and mineral or oil ...

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    Polyacrylamide/cationic Polyacrylamide. Inquire Now. Shandong Right Fine Chemical Co., Ltd. China (mainland) Polyacrylamide 1.Anionic and cationic polyacrylamide... Inquire Now. Weihai Jinyu Environmental Protection Technology Co.,Ltd. China (mainland) polyacrylamide,PAM,HPAM,CPAM,PAMC,cationic polyacryl...

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    Paper making cationic polyacrylamide. FOB Price: USD 3.5 Kilogram. Min. Order: 2000 Kilograms. Professional PAM manufacturer of concrete polymer powder. FOB Price: 2.35 Kilogram. Min. Order: 2000 Kilograms. High quality polymer for industrial & municipal waste …

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  • Biodegradation of cypermethrin by immobilized cells

    Biodegradation of such chemicals by microorganisms may provide an cost-effective method for their detoxification. We have investigated the degradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 in various matrices such as, polyurethane foam (PUF), polyacrylamide…

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    2012-3-13 · Purity: ≥88 Usage: 1. It is used as a flocculant in water treatment industry. Also used in petroleum geology drilling configuration for removing non-dispersing low solid phase mud. 2. It can be used as setting agent in sugar industry settling agent (sugar co-agent); film formers. 3.

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  • Biodegradation of gentamicin by bacterial consortia

    2017-9-8 · Gentamicin (purity, 99.99%), composed of C1a, C2, C2a and C1 (Fig. S3), was obtained from Zhichu Pharmaceutical Factory (ZPF) in Shandong Province, …

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  • Silver staining DNA in polyacrylamide gels | Nature

    2007-10-25 · Goldman, D. & Merril, C.R. Silver staining of DNA in polyacrylamide gels: linearity and effect of fragment size. Electrophoresis 3 , 24–26 (1982). CAS Article Google Scholar

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    2005-6-1 · Biodegradation of HMX was slower relative to that of RDX, consistent with our previous observations with Halifax sediment and other anaerobic systems . No significant loss of RDX (0.7 μM of 101 μM) or HMX (0.15 μM of 11 μM) was found in abiotic controls containing sterile sediment under similar conditions [pH 6.5, final E (versus Ag/AgCl ...

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