Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

polyacrylamide biodegradation in thailand

  • Biodegradation of Polyacrylamide and Its Derivatives ...

    2017-5-4 · Biodegradation of PAM and its derivatives has been studied only in the last two decades, with most emphasis on acrylamide biodegradation. Microorganisms have been shown to utilize, not only acrylamide, but also PAM and its derivatives as the sole source of nitrogen and/or carbon under aerobic as well as anaerobic conditions.

    Get Price
  • Biodegradation of acrylamide by Enterobacter

    2011-3-1 · In the present work, we reported the isolation and characterization of a novel acrylamide-degrading bacterium from domestic wastewater in Chonburi, Thailand. The strain grew well in the presence of acrylamide as 0.5% (W/V), at pH 6.0 to 9.0 and 25°C.

    Get Price
  • Biodegradation of Polyacrylamide and Its Derivatives ...

    Biodegradation of PAM and its derivatives has been studied only in the last two decades, with most emphasis on acrylamide biodegradation. Microorganisms have been shown to utilize, not only acrylamide, but also PAM and its derivatives as the sole source of nitrogen and/or carbon under aerobic as well as anaerobic conditions.

    Get Price
  • Isolation and Characterization of Polyacrylamide

    2013-11-1 · Under aerobic conditions, acrylamide has been shown to be readily degraded in fresh water by bacteria, with a half-life of 55–70 h, after acclimatization for 33–50 h ( Conway et al., 1979 ). Half-lives in estuarine or salt water are slightly longer ( Croll et al., 1974 ).

    Get Price
  • Biodegradation of acrylamide and purification of ...

    2015-4-1 · Polyacrylamide (PAM) is a water-soluble polymer that is usually produced through the polymerization of acrylamide with one or more copolymers. The amide groups of PAM form hydrogen bonds in aqueous solutions, and high-molecular-weight PAM is an effective flocculant of suspended solids in water via charge neutralization and interparticle bridging [ 1 ].

    Get Price
  • Isolation and Characterization of Polyacrylamide

    2014-9-26 · The biodegradation of PAM induced changes in the structure of the polymer (reduction of the molecular weight), but no evidence of release of AMD monomer has been found. Although amidases are involved in the mechanism of degradation of PAM, the reaction pathway for the microbial degradation of PAM is not clearly identified.

    Get Price
  • Transfer and degradation of polyacrylamide-based ...

    Polyacrylamide (PAM) is a water-soluble polymer that is widely used as a flocculant in sewage treatment. [...] Key Result. The efficiency of PAM degradation was 31.1% in 7 days and exceeded 45% under optimum culture condition (pH 7.2, 39 °C and 100 rpm). The addition of yeast extract and glucose improved the bacterial growth and PAM degradation.

    Get Price
  • Removal of Acrylamide by Microorganisms | IntechOpen

    2018-1-15 · Abstract. A pyrene-degrading microbial consortium was obtained after enrichment with mangrove sediment collected from Thailand. Five cultivable bacteria ( Mycobacterium spp. PO1 and PO2, Novosphingobium pentaromativorans PY1, Ochrobactrum sp. PW1, and Bacillus sp. FW1) were successfully isolated from the consortium.

    Get Price
  • Biodegradation of acrylamide by acrylamidase from ...

    2014-10-1 · Biodegradation of acrylamide and purification of acrylamidase from newly ... Biodegradation of acrylamide by Enterobacter aerogenes isolated from wastewater in Thailand. J. Environ. Sci., 23 (2011), pp. 396-403. Google Scholar ... Determination of acrylamide monomer in polyacrylamide degradation studies by high – performance liquid ...

    Get Price
  • Preparation of Polyacrylamide Grafted onto Magnetic ...

    2019-3-27 · Preparation of Polyacrylamide Grafted onto Magnetic Cellulose as Flocculant in Wastewater Pre-treatment ... However, the natural polymer is vulnerable to biodegradation as the . 01. Proceedings of the International Conference on Industrial Engineering and Operations Management ... Thailand…

    Get Price
  • Preliminary study of acrylamide monomer

    2016-7-1 · Since degradation of polyacrylamide accompanied with accumulation of its toxic monomer is important to the disposition of biogas residues generically termed as “digestate” (Chu et al., 2003, Zhang et al., 2009, Duan et al., 2012,) biodegradation of polyacrylamide by anaerobic digestion under mesophilic conditions in a dewatered sludge ...

    Get Price
  • [PDF] Isolation and Characterization of Polyacrylamide ...

    Polyacrylamide (PAM) is a water-soluble polymer that is widely used as a flocculant in sewage treatment. The accumulation of PAM affects the formation of dewatered sludge and potentially produces hazardous monomers. In the present study, the bacterial strain HI47 was isolated from dewatered sludge. This strain could metabolize PAM as its sole nutrient source and was subsequently identified as ...

    Get Price
  • Microbial aerobic and anaerobic degradation of

    2014-11-6 · Microbial diversity of the sample collection. Enumeration of the mesophilic aerobic flora was performed for the water and sludge samples collected from the water recycling system (Table 1).Although the make-up water (P1) showed the lowest microbial concentration (3.36 log CFU mL −1), the concentrations in the other water and sludge samples of the washing process were fairly similar with …

    Get Price
  • high molecular weight hydrolyzed polyacrylamides

    2018-1-15 · A pyrene-degrading microbial consortium was obtained after enrichment with mangrove sediment collected from Thailand. Five cultivable bacteria (Mycobacterium spp. PO1 and PO2, Novosphingobium pentaromativorans PY1, Ochrobactrum sp. PW1, and Bacillus sp. FW1) were successfully isolated from the consortium.Draft genomes of them showed that two different …

    Get Price
  • Synergistic degradation of pyrene by five culturable ...

    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.

    Get Price
  • hpam partially hydrolyzed polyacrylamide in pakistan

    2016-9-29 · The biodegradation test in soil has to be finished after 24 months. The test procedure is described in ASTM D5988, ISO 17556 and ISO 11266. The certificate of biodegradation in soil can be obtained from Vincotte, Belgium, or DIN CERTCO, Germany. The certificate is required in Italy and Spain to obtain governmental support for biodegradable ...

    Get Price
  • Polymers, Biodegradable - Künkel - - Major Reference

    2021-5-9 · where W d is the weight of the dried SAP and W s is the weight of the swollen sample.. Biological Degradation. The biodegradations of P(KA) and P(Am-co-KA) were carried out using a soil burial method (Sharma et al. 2014).Five samples (150 g each) of each swollen gel were separately put in a 14 × 14 cm linen bag and buried in the natural garden soil at a depth of 10 cm with a 3-cm spacing ...

    Get Price
  • jesc.ac

    Citation: Buranasilp K, Charoenpanich J, 2011. Biodegradation of acrylamide by Enterobacter aerogenes isolated from wastewater in Thailand. Journal of Environmental Sciences, 23(3): 396–403. Introduction Acrylamide (CH2=CHCONH2) is an important monomer used as a conjugated reactive molecule in polyacrylamide production as well as a binding,

    Get Price
  • Preparation of Polyacrylamide Grafted onto Magnetic ...

    2019-3-27 · Preparation of Polyacrylamide Grafted onto Magnetic Cellulose as Flocculant in Wastewater Pre-treatment ... However, the natural polymer is vulnerable to biodegradation as the . 01. Proceedings of the International Conference on Industrial Engineering and Operations Management ... Thailand…

    Get Price
  • Proteome Analysis of Acrylamide-induced Proteins in a ...

    2020-8-27 · Keywords: Acrylamide, Biodegradation, Enterobacter aerogenes, 2D-PAGE, MALDI-TOF MS INTRODUCTION Acrylamide (CH 2=CHCONH 2) is used as a conjugated reactive molecule in polyacrylamide production as well as a binding, thickening or flocculating agent Doi: 10.12982/cmujns.2014.0016

    Get Price
  • Published Online November 2020 in IJEAST (http://www ...

    2021-1-7 · Acrylamide biodegradation in wastewater by Enterobacter aerogenes was reported in Thailand (Buranasilp, K et al., 2011). Fig. 1 A Phylogenetic tree using neighbour-joining method C. Growth specific characterization of Enterobacter cloacae subsp. dissolvens strain TJ1812 Acrylamide biodegradation by Enterobacter cloacae subsp.

    Get Price
  • Biodegradation of acrylamide by acrylamidase from ...

    The present study examines an improved detoxification and rapid biological degradation of toxic pollutant acrylamide using a bacterium. The acrylamide degrading bacterium was isolated from the soil followed by its screening to know the acrylamide degrading capability. The minimal medium containing acrylamide (30 mM) served as a sole source of carbon and nitrogen for their active growth.

    Get Price
  • low molecular weight polyacrylamide in brazil

    2021-5-9 · where W d is the weight of the dried SAP and W s is the weight of the swollen sample.. Biological Degradation. The biodegradations of P(KA) and P(Am-co-KA) were carried out using a soil burial method (Sharma et al. 2014).Five samples (150 g each) of each swollen gel were separately put in a 14 × 14 cm linen bag and buried in the natural garden soil at a depth of 10 cm with a 3-cm spacing ...

    Get Price
  • starch polyacrylamide polymer system for improved

    pam flocculant anionic polyacrylamide apam for drilling | manufacturer of polyacrylamide for water treatment industrial. PHPA Polymer|PHPA anionic polyacrylamide(A2718) for oil drilling: White or yellow powder,non-toxic,non-corrosive,easily solubale in water,mainly used as a selective flocculant for non-dispersed,low solid phase water-based drilling fluid.it can

    Get Price
  • Rapid Degradation of Superabsorbent Poly(Potassium ...

    2020-10-28 · Ultimate biodegradation is obtained when the test substance degrades by 90 % of the reference material. Duration of the test depends on the ecosystem and could last a maximum of 6 months in (sea)water. 125 , 126 For soil 127 and marine sediment or seawater/sediment interface, 128 , 129 the maximum test period is 24 months.

    Get Price
  • Biodegradation of partially hydrolyzed polyacrylamide

    2016-3-29 · 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. Through optimizing the c...

    Get Price
  • Isolation and Characterization of Polyacrylamide

    The microbial biodegradation of PAM has long been studied. Previous studies suggested that microorganisms are able to degraded and utilized PAM as a nitrogen source in both aerobic and anaerobic environments [13,14]. Microorganisms produce a polyacrylamide induced amidase to deaminate PAM .

    Get Price
  • Anaerobic biodegradation of partially hydrolyzed ...

    The increasing usage of partially hydrolyzed polyacrylamide (HPAM) in oilfields as a flooding agent to enhance oil recovery at so large quantities is an ecological hazard to the subsurface ecosystem due to persistence and inertness. Biodegradation of HPAM is a potentially promising strategy for dealing with this problem among many other methods available.

    Get Price
  • Anaerobic biodegradation of partially hydrolyzed ...

    2019-5-20 · Biodegradation of hydrolyzed polyacrylamide by a Bacillus megaterium strain SZK-5: Functional enzymes and antioxidant defense Chemosphere ( IF 5.778) Pub Date : 2019-05-18, DOI: Tianwen Song,Shanshan Li,Yifeng Lu,Dong Yan,Peiyan Sun,Mutai Bao,Yang Li

    Get Price
  • Toxicity of polyacrylamide after degradation

    The increasing usage of partially hydrolyzed polyacrylamide (HPAM) in oilfields as a flooding agent to enhance oil recovery at so large quantities is an ecological hazard to the subsurface ecosystem due to persistence and inertness. Biodegradation of HPAM is a potentially promising strategy for dealing with this problem among many other methods available.

    Get Price
  • Research progress in the biodegradation of polymer

    Biodegradation of partially hydrolyzed polyacrylamide by bacteria isolated from production water after polymer flooding in an oil field 【DOI】 10.1016/j.jhazmat.2010.08.011 【摘要】 Partially hydrolyzed polyacrylamide (HPAM) in production water after polymer ...

    Get Price
  • Polymers, Biodegradable - Künkel - - Major Reference

    The research results of Li Daping of Chengdu Institute of Biology, Chinese Academy of Sciences show that under natural conditions, polyacrylamide will undergo slow physical degradation (heat, shear), chemical degradation (hydrolysis, oxidation and catalytic oxidation) and biodegradation, resulting in Various oligomers and highly toxic acrylamide monomers cause great indirect or direct harm to ...

    Get Price
  • A novel poly (L-lactide) degrading actinomycetes

    A PLA-degrading enzyme produced by the strain was purified to homogeneity shown by sodium dodecyl sulfate-polyacrylamide gel electrophoresis with specific activity of 38.3 unit/mg protein. The optimum pH and temperature were 10.0 and 70 masculineC, respectively, which are higher than previously reported among PLA-degrading enzyme.

    Get Price
  • Polyacrylamide gel electrophoresis of human serum in ...

    ' The sera of eighty-three healthy adult Thais from Northeast Thailand were examined by acrylamide gel electrophoresis. Stool examinations and haematological parameters were also done. ... Biodegradation - (XX700) ... polyacrylamide gel electrophoresis. Show more.

    Get Price
  • Table 1 from Acrylamide biodegradation ability and

    DOI: 10.1007/s10532-013-9633-6 Corpus ID: 9249500. Acrylamide biodegradation ability and plant growth-promoting properties of Variovoraxboronicumulans CGMCC 4969 @article{Liu2013AcrylamideBA, title={Acrylamide biodegradation ability and plant growth-promoting properties of Variovoraxboronicumulans CGMCC 4969}, author={Z. Liu and Y. Cao and Qianwen Zhou and K. Guo …

    Get Price
  • Figure 5 from Acrylamide biodegradation ability and

    Fig. 5 Time course of acrylamide biodegradation by resting cells of E. coli Rosetta pET28a-amidase and control cells lacking amidase gene. Overexpression of amidase and resting cell acrylamide transformation conditions described in Materials and methods section, OD600 of resting cell suspensions 5 - 'Acrylamide biodegradation ability and plant growth-promoting properties of ...

    Get Price
  • Atrazine degradation by stable mixed cultures enriched ...

    ORIGINAL ARTICLE Atrazine degradation by stable mixed cultures enriched from agricultural soil and their characterization S. Siripattanakul1,2, W. Wirojanagud3, J. McEvoy4, T. Limpiyakorn5 and E. Khan2 1 National Center of Excellence for Environmental and Hazardous Waste Management, Chulalongkorn University, Bangkok, Thailand

    Get Price
  • Characterization of the microbial diversity in

    2012-5-14 · Anaerobic biodegradation of partially hydrolyzed polyacrylamide in long-term methanogenic enrichment cultures from production water of oil reservoirs. Hu H, Liu JF, Li CY, Yang SZ, Gu JD, Mu BZ. Biodegradation, 29(3):233-243, 03 Mar 2018 Cited by: 1 article | PMID: 29502248

    Get Price
  • The selection of mixed microbial inocula in

    The impact of inorganic N and P additions on a tropical soil contaminated with petroleum hydrocarbons was investigated using molecular and culture techniques. Microcosms were incubated for 42 days and sampled at 0, 1, 7, 28 and 42 days. Changes in bacterial community structure were determined using …

    Get Price
  • malaysia surfactants, malaysia surfactants Suppliers

    1,802 malaysia surfactants products are offered for sale by suppliers on Alibaba.com, of which surfactants accounts for 7%, leather auxiliary agents accounts for 6%, and electronics chemicals accounts for 5%. A wide variety of malaysia surfactants options are available to …

    Get Price
  • Rattiya Waeonukul - Academia.edu

    The 280-kDa protein resembled the scaffolding proteins of cellulosomes based on its migratory behavior in polyacrylamide gels and as a glycoprotein. Cloning of the 40-kDa major xylanase subunit named Xyn11A revealed that Xyn11A contained two functional domains which belonged to glycosyl hydrolase family-11 and to carbohydrate-binding module ...

    Get Price
  • (PDF) Biodegradation of ethidium bromide by Bacillus ...

    Biodegradation of ethidium bromide by Bacillus thuringiensis isolated from soil. African Journal of Microbiology Research, 2013. Duangporn Kantachote

    Get Price
  • Survey of Microbial Diversity in Flood Areas during ...

    2015-5-28 · In 2011, Thailand witnessed the most enormous flood in its history, which devastated infrastructure, agriculture, industry, and society as a whole. The flood swept from the north of Chao Phraya River basin through Central Thailand during July 2011 to January 2012, submerging 60,000 square kilometers of land.

    Get Price
  • Sustainability | Free Full-Text | Expanding Policy for ...

    Thailand is a nation rich in biomass with rich capital in the plastics industry and with more than 4000 enterprises. The Thai government, in its pursuit of economic growth and sustainability, has recognized the bio-plastic industry as a strategic industrial sector since 2006 [2,5]. This led to the National Roadmap for Bioplastics development ...

    Get Price
  • Journal: International biodeterioration &

    You searched for: Journal International biodeterioration & biodegradation Remove constraint Journal: International biodeterioration & biodegradation Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.124 Remove constraint Source: 2017 v.124

    Get Price
  • removal of acrylamide | Kalyani Thakur - Academia.edu

    removal of acrylamide. Kalyani Thakur. Release of acrylamide in environmentAcrylamide is a synthetic monomer with a broad spectrum of industrial applications, mainly 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 ...

    Get Price
  • Biodegradable Plastics: Standards, Policies, and Impacts

    2021-1-7 · Waste not!This critical Review of the state of the art of biodegradable plastics covers the environmental and socio‐economic impact of plastics, government policies, standards and certifications, physico‐chemical properties, and analytical techniques, highlighting the potential of bioplastics, but also the challenges and barriers towards their commercialization.

    Get Price
  • Degradation of Poly(ε-caprolactone) by thermophilic ...

    2013-1-29 · A thermophilic Streptomyces thermoviolaceus subsp. thermoviolaceus isolate 76T-2 that can degrade poly(ε-caprolactone) (PCL) was isolated from soil in Taiwan. Isolate 76T-2 grew well in urea fructose oatmeal medium and exhibited clear zones on agar plates containing PCL, indicating the presence of extracellular PCL depolymerases. The PCL powder present in culture medium was …

    Get Price
  • Effect of Natural Rubber Contents on Biodegradation

    Abstract Interpenetrating polymer network (IPN) hydrogel based on crosslinked natural rubber (NR) latex and crosslink cassava starch (St) was successfully prepared by a solution blending technique. Crosslinked NR latex was firstly prepared in emulsion state at 70°C by using potassium persulfate as initiator and N, N’-methylene-bis-acrylamide (MBA) as crosslinker.

    Get Price
  • (PDF) Biodegradation of ethidium bromide by Bacillus ...

    Biodegradation of ethidium bromide by Bacillus thuringiensis isolated from soil. African Journal of Microbiology Research, 2013. Duangporn Kantachote

    Get Price
  • Frontiers | Microbial Biodiversity and Bioremediation ...

    2020-9-25 · Industrialization, population burst, and changing lifestyles have resulted in the genesis of non-degradable pollutants languishing the environment and human health. Biological approaches using microorganisms are gaining importance as an eco-friendly and cost-effective substitute to mitigate the pollution load. Microorganisms can survive in a divergent environment and produce metabolites that ...

    Get Price
  • Abhijit Samanta - Assistant Professor - The Neotia ...

    Texas A&M University. Mar 2011 - Jul 20121 year 5 months. Doha, Qatar. My work was mainly concentrated on the formulation of best Alkali-Surfactant-Polymer (ASP) solution for Qatar oil field and development of possible ASP flooding code by mathematical modeling. My research work is also focused on interfacial surfactants on their interfacial ...

    Get Price
  • Degradation of Poly(ε-caprolactone) by thermophilic ...

    2013-1-29 · A thermophilic Streptomyces thermoviolaceus subsp. thermoviolaceus isolate 76T-2 that can degrade poly(ε-caprolactone) (PCL) was isolated from soil in Taiwan. Isolate 76T-2 grew well in urea fructose oatmeal medium and exhibited clear zones on agar plates containing PCL, indicating the presence of extracellular PCL depolymerases. The PCL powder present in culture medium was …

    Get Price
  • Survey of Microbial Diversity in Flood Areas during ...

    2015-5-28 · In 2011, Thailand witnessed the most enormous flood in its history, which devastated infrastructure, agriculture, industry, and society as a whole. The flood swept from the north of Chao Phraya River basin through Central Thailand during July 2011 to January 2012, submerging 60,000 square kilometers of land.

    Get Price
  • Effect of Natural Rubber Contents on Biodegradation

    Abstract Interpenetrating polymer network (IPN) hydrogel based on crosslinked natural rubber (NR) latex and crosslink cassava starch (St) was successfully prepared by a solution blending technique. Crosslinked NR latex was firstly prepared in emulsion state at 70°C by using potassium persulfate as initiator and N, N’-methylene-bis-acrylamide (MBA) as crosslinker.

    Get Price
  • Cloning, expression in Pichia pastoris , and ...

    2020-9-25 · Industrialization, population burst, and changing lifestyles have resulted in the genesis of non-degradable pollutants languishing the environment and human health. Biological approaches using microorganisms are gaining importance as an eco-friendly and cost-effective substitute to mitigate the pollution load. Microorganisms can survive in a divergent environment and produce metabolites that ...

    Get Price
  • Frontiers | Microbial Biodiversity and Bioremediation ...

    You searched for: Journal International biodeterioration & biodegradation Remove constraint Journal: International biodeterioration & biodegradation Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.124 Remove constraint Source: 2017 v.124

    Get Price
  • Journal: International biodeterioration &

    removal of acrylamide. Kalyani Thakur. Release of acrylamide in environmentAcrylamide is a synthetic monomer with a broad spectrum of industrial applications, mainly 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 ...

    Get Price
  • removal of acrylamide | Kalyani Thakur - Academia.edu

    Thailand is a nation rich in biomass with rich capital in the plastics industry and with more than 4000 enterprises. The Thai government, in its pursuit of economic growth and sustainability, has recognized the bio-plastic industry as a strategic industrial sector since 2006 [2,5]. This led to the National Roadmap for Bioplastics development ...

    Get Price
  • Sustainability | Free Full-Text | Expanding Policy for ...

    2013-1-29 · A thermophilic Streptomyces thermoviolaceus subsp. thermoviolaceus isolate 76T-2 that can degrade poly(ε-caprolactone) (PCL) was isolated from soil in Taiwan. Isolate 76T-2 grew well in urea fructose oatmeal medium and exhibited clear zones on agar plates containing PCL, indicating the presence of extracellular PCL depolymerases.

    Get Price
  • Degradation of Poly(ε-caprolactone) by thermophilic ...

    2019-11-26 · Aerobic and anaerobic biodegradation potential of leachate from old active landfill G. Kalčíková, E. Tratar Pirc and A. Žgajnar Gotvajn (Ljubljana, Slovenia) ..... 8619 Full-scale hybrid constructed wetlands incorporated with an initial anaerobic stage

    Get Price