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  1. Article: Hydrogenotrophs-Based Biological Biogas Upgrading Technologies.

    Antukh, Tatsiana / Lee, Ingyu / Joo, Sunghee / Kim, Hyunook

    Frontiers in bioengineering and biotechnology

    2022  Volume 10, Page(s) 833482

    Abstract: Biogas produced from anaerobic digestion consists of 55-65% methane and 35-45% carbon dioxide, with an additional 1-2% of other impurities. To utilize biogas as renewable energy, a process called biogas upgrading is required. Biogas upgrading is the ... ...

    Abstract Biogas produced from anaerobic digestion consists of 55-65% methane and 35-45% carbon dioxide, with an additional 1-2% of other impurities. To utilize biogas as renewable energy, a process called biogas upgrading is required. Biogas upgrading is the separation of methane from carbon dioxide and other impurities, and is performed to increase CH
    Language English
    Publishing date 2022-04-25
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2719493-0
    ISSN 2296-4185
    ISSN 2296-4185
    DOI 10.3389/fbioe.2022.833482
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  2. Article ; Online: Revitalizing plastic wastes employing bio-circular-green economy principles for carbon neutrality.

    Rani, Aishwarya / Negi, Suraj / Fan, Chihhao / Lam, Su Shiung / Kim, Hyunook / Pan, Shu-Yuan

    Journal of hazardous materials

    2024  Volume 472, Page(s) 134394

    Abstract: The use of plastics has become deeply ingrained in our society, and there are no indications that its prevalence will decrease in the foreseeable future. This article provides a comprehensive overview of the global plastic waste disposal landscape, ... ...

    Abstract The use of plastics has become deeply ingrained in our society, and there are no indications that its prevalence will decrease in the foreseeable future. This article provides a comprehensive overview of the global plastic waste disposal landscape, examining it through regional perspectives, various management technologies (dumping or landfilling, incineration, and reuse and recycling), and across different sectors including agriculture and food, textile, tourism, and healthcare. Notably, this study compiles the findings on life-cycle carbon footprints associated with various plastic waste management practices as documented in the literature. Employing the bio-circular-green economy model, we advocate for the adoption of streamlined and sustainable approaches to plastic management. Unique management measures are also discussed including the utilization of bioplastics combined with smart and efficient collection processes that facilitate recycling, industrial composting, or anaerobic digestion. Moreover, the integration of advanced recycling methods for conventional plastics with renewable energy, the establishment of plastic tax and credits, and the establishment of extended producer responsibility are reviewed. The success of these initiatives relies on collaboration and support from peers, industries, and consumers, ultimately contributing to informed decision-making and fostering sustainable practices in plastic waste management.
    Language English
    Publishing date 2024-04-26
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2024.134394
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  3. Article ; Online: Complete Genome Sequence of

    Jeon, Byoung-Seung / Kim, Hyunjin / Go, Young Wook / Kim, Hyunook / Choi, Okkyoung / Sang, Byoung-In

    Microbiology resource announcements

    2021  Volume 10, Issue 38, Page(s) e0058721

    Abstract: ... ...

    Abstract Methanothermobacter
    Language English
    Publishing date 2021-09-23
    Publishing country United States
    Document type Journal Article
    ISSN 2576-098X
    ISSN (online) 2576-098X
    DOI 10.1128/MRA.00587-21
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  4. Article ; Online: Editorial

    Rabi H. Mohtar / Mirella Aoun / Bassel Daher / Chrysi S. Laspidou / Hyunook Kim / Virender K. Sharma

    Frontiers in Environmental Science, Vol

    Water-Energy-Food-Health Solutions and innovations for low-carbon, climate-resilient drylands

    2023  Volume 11

    Keywords Water-Energy-Food-Health Nexus ; climate-resilient drylands ; solutions and innovations ; grand challenges ; United Nations Sustainable Development Goals (UN-SDGs) ; American Chemical Society (ACS) ; Environmental sciences ; GE1-350
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Impact of particulate matter on primary leaves of Vigna radiata (L.) R. Wilczek

    Nisha Shabnam / Joosung Oh / Sangwon Park / Hyunook Kim

    Ecotoxicology and Environmental Safety, Vol 212, Iss , Pp 111965- (2021)

    2021  

    Abstract: Particulate matter (PM) pollution is of great concern for human health and vegetation. In this study, we investigated the impact of PM on primary (unifoliate) leaves of Vigna radiata (L.) R.Wilczek by exposing leaves’ adaxial surface to PM. Leaves ... ...

    Abstract Particulate matter (PM) pollution is of great concern for human health and vegetation. In this study, we investigated the impact of PM on primary (unifoliate) leaves of Vigna radiata (L.) R.Wilczek by exposing leaves’ adaxial surface to PM. Leaves exposed to PM showed accumulation of various metal(loid)s even after removal of epicuticular wax (EW) revealing that the metals/metalloids could penetrate through the cuticular barrier. Scanning electron microscopic studies revealed that even after thorough washing with water, a significant amount (~55%) of particles were retained on the leaf surface. Leaves did not show any particles on their surface post EW removal, revealing that particles adhered to EW. Exposing primary leaves to PM did not alter their size but gave rise to smaller sized trifoliate leaves. A decline in Chl a/b of PM-exposed primary leaves suggested that PM cause a shading effect on leaves. PM-exposed primary leaves also showed a decline in sugar levels. However, the trifoliate leaves did not show any variation in Chl a/b as well as sugar levels. Our findings furnish evidence for the negative effects of PM on plants and a probable dietary exposure of humans to PMs, warranting more in-depth studies on the potential risks of PMs in agricultural sector.
    Keywords Chlorophyll ; Epicuticular wax ; Particulate matter ; SEM ; Vigna radiata ; Environmental pollution ; TD172-193.5 ; Environmental sciences ; GE1-350
    Subject code 580
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
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  6. Article ; Online: Chitosan cross-linked β–cyclodextrin polymeric adsorbent for the removal of perfluorobutanesulfonate from aqueous solution: adsorption kinetics, isotherm, and mechanism

    Verma, Monu / Lee, Ingyu / Kumar, Vinod / Pan, Shu-Yuan / Fan, Chihhao / Kim, Hyunook

    Environ Sci Pollut Res. 2023 Feb., v. 30, no. 7 p.19259-19268

    2023  

    Abstract: The existence of per- and polyfluoroalkyl substances (PFASs) in water is of serious interest due to their toxic, bioaccumulative, and persistent nature, and adsorption is an effective approach for the PFASs removal. In the present study, we developed a ... ...

    Abstract The existence of per- and polyfluoroalkyl substances (PFASs) in water is of serious interest due to their toxic, bioaccumulative, and persistent nature, and adsorption is an effective approach for the PFASs removal. In the present study, we developed a polymeric adsorbent by cross-linking chitosan and β–cyclodextrin using glutaraldehyde (Chi–Glu–β–CD) and evaluated its removal performance for perfluorobutanesulfonate (PFBS) from water. The results indicate that the performance was highly affected by solution pH; under a more acidic condition (e.g., pH 2.0), a higher removal efficiency was detected, and faster adsorption kinetics was observed with the rate constant (k₂) of 0.001 ± 3×10⁻⁴ g mg⁻¹ min⁻¹. Adsorption isotherm data agreed to the Sips model with a maximum heterogeneous adsorption capacity of 135.70 ± 25.70 mg g⁻¹, probably due to protonated amine (NH⁺) and electron-deficient β–CD cavities. The adsorption mechanism was confirmed using energy dispersive X-ray and Fourier transform infrared (FTIR) spectroscopy, showing the role of electrostatic attractions between the protonated amine and the negatively charged PFBS molecule (especially, with sulfonate side (N–H–-O–S)) and host–guest inclusion formations with β–CD cavity in adsorption. Additionally, the synthesized adsorbent was recovered using methanol without any significant decline in adsorption efficiency even after four continuous adsorption/desorption cycles. All these findings suggested that the Chi–Glu–β–CD composite could be a promising adsorbent in the removal of PFBS from water.
    Keywords Fourier transform infrared spectroscopy ; adsorbents ; adsorption ; aqueous solutions ; chitosan ; crosslinking ; desorption ; energy-dispersive X-ray analysis ; glutaraldehyde ; methanol ; models ; pH ; polymers ; sorption isotherms ; sulfonates ; toxicity
    Language English
    Dates of publication 2023-02
    Size p. 19259-19268.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-23546-z
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    Z 5915: Show issues

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  7. Article ; Online: Bio-oil and biochar production from Ageratum conyzoides using triple-stage hydrothermal liquefaction and utilization of biochar in removal of multiple heavy metals from water.

    Verma, Monu / Lee, Ingyu / Pandey, Shivam / Nanda, Manisha / Kumar, Vinod / Chauhan, P K / Kumar, Sanjay / Vlaskin, Mikhail S / Kim, Hyunook

    Chemosphere

    2023  Volume 340, Page(s) 139858

    Abstract: Production of low-cost biomass and its utilization for producing cost effective and eco-friendly bioenergy as well as for removing heavy metals from water can be explored as an approach to meet the sustainable development goals. In light of the above- ... ...

    Abstract Production of low-cost biomass and its utilization for producing cost effective and eco-friendly bioenergy as well as for removing heavy metals from water can be explored as an approach to meet the sustainable development goals. In light of the above-mentioned study, hydrothermal liquefaction (HTL) of Billy goat weed (B
    MeSH term(s) Ageratum ; Water ; Cadmium ; Lead ; Manganese Compounds ; Oxides ; Metals, Heavy
    Chemical Substances biochar ; Bio-Oil ; Water (059QF0KO0R) ; Cadmium (00BH33GNGH) ; Lead (2P299V784P) ; Manganese Compounds ; Oxides ; Metals, Heavy
    Language English
    Publishing date 2023-08-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139858
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  8. Article: Development of yeast and microalgae consortium biofilm growth system for biofuel production.

    Bisht, Bhawna / Verma, Monu / Sharma, Rohit / Chauhan, P K / Pant, Kumud / Kim, Hyunook / Vlaskin, Mikhail S / Kumar, Vinod

    Heliyon

    2023  Volume 9, Issue 9, Page(s) e19353

    Abstract: Background: The current study aimed to develop a laboratory-scale biofilm photobioreactor system for biofuel production.: Scope & approach: During the investigation, Jute was discovered to be the best, cheap, hairy, open-pored supporting material for ...

    Abstract Background: The current study aimed to develop a laboratory-scale biofilm photobioreactor system for biofuel production.
    Scope & approach: During the investigation, Jute was discovered to be the best, cheap, hairy, open-pored supporting material for biofilm formation. Microalgae & yeast consortium was used in this study for biofilm formation.
    Conclusion: The study identified microalgae and yeast consortium as a promising choice and ideal partners for biofilm formation with the highest biomass yield (47.63 ± 0.93 g/m
    Language English
    Publishing date 2023-08-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e19353
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  9. Article ; Online: The Surface acidity of freshly synthesized microplastics particles in simple electrolyte

    Lin, Jui-Yen / Lee, Ingyu / Tzeng, Jing-Hua / Li, Wanze / Kim, Hyunook / Huang, Jinbao

    Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2023 Oct., v. 675 p.132000-

    2023  

    Abstract: The surface chemistry of sub-micron microplastics (MP) particles, specifically, the pH-dependent surface charge (or surface acidity), plays a role on the transport, transformation, and effect of contaminants in the aquatic environment. Little is known on ...

    Abstract The surface chemistry of sub-micron microplastics (MP) particles, specifically, the pH-dependent surface charge (or surface acidity), plays a role on the transport, transformation, and effect of contaminants in the aquatic environment. Little is known on the origin of surface charge and the quantification of surface acidity of MP. In this study, the surface charge of submicron particles of six major polymers, including low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), and polyethylene terephthalate (PET), was characterized in inert electrolytes, namely, NaClO₄, NaCl, and NaNO₃ for the elucidation of surface acidity. IR absorbance revealed that oxygen-rich functional groups were introduced during the resynthesis of MP particles, whose surface chemical structure consists of three main functional groups, i.e., carboxylic/ester, ether/alcohol, and aliphatic. Results show clearly that the zeta potential of MP particles was negatively charged in simple electrolytes at pH greater than ca. 2.0. Hydroxide ions adsorption on the non-polar aliphatic sites, and deprotonation of surface hydroxy group on the polar carboxylic/ester and ether/alcohol sites, contributed to the negative charges on MP surface. The surface acidity of selected MP particles was established in terms of acid strength (intrinsic acidity constants) and capacity (total surface site concentration) for the three distinct surface sites. Results also show the surface acid site density increases with hydration/hydrolysis time with rate constants of the polar surface sites, i.e., carboxylic/ester and ether/alcohol being 2.3 times greater than that of the non-polar aliphatic group.
    Keywords absorbance ; acidity ; adsorption ; alcohols ; aquatic environment ; chemical structure ; deprotonation ; electrolytes ; hydrolysis ; microplastics ; pH ; poly(vinyl chloride) ; polyethylene ; polyethylene terephthalates ; polypropylenes ; polystyrenes ; zeta potential ; Ultrafine plastics particles ; Surface charge ; Gouy-Chapman model ; Surface acidity
    Language English
    Dates of publication 2023-10
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1500517-3
    ISSN 0927-7757
    ISSN 0927-7757
    DOI 10.1016/j.colsurfa.2023.132000
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  10. Article ; Online: Impact of particulate matter on primary leaves of Vigna radiata (L.) R. Wilczek.

    Shabnam, Nisha / Oh, Joosung / Park, Sangwon / Kim, Hyunook

    Ecotoxicology and environmental safety

    2021  Volume 212, Page(s) 111965

    Abstract: Particulate matter (PM) pollution is of great concern for human health and vegetation. In this study, we investigated the impact of PM on primary (unifoliate) leaves of Vigna radiata (L.) R.Wilczek by exposing leaves' adaxial surface to PM. Leaves ... ...

    Abstract Particulate matter (PM) pollution is of great concern for human health and vegetation. In this study, we investigated the impact of PM on primary (unifoliate) leaves of Vigna radiata (L.) R.Wilczek by exposing leaves' adaxial surface to PM. Leaves exposed to PM showed accumulation of various metal(loid)s even after removal of epicuticular wax (EW) revealing that the metals/metalloids could penetrate through the cuticular barrier. Scanning electron microscopic studies revealed that even after thorough washing with water, a significant amount (~55%) of particles were retained on the leaf surface. Leaves did not show any particles on their surface post EW removal, revealing that particles adhered to EW. Exposing primary leaves to PM did not alter their size but gave rise to smaller sized trifoliate leaves. A decline in Chl a/b of PM-exposed primary leaves suggested that PM cause a shading effect on leaves. PM-exposed primary leaves also showed a decline in sugar levels. However, the trifoliate leaves did not show any variation in Chl a/b as well as sugar levels. Our findings furnish evidence for the negative effects of PM on plants and a probable dietary exposure of humans to PMs, warranting more in-depth studies on the potential risks of PMs in agricultural sector.
    MeSH term(s) Air Pollutants/analysis ; Air Pollutants/toxicity ; Dietary Exposure ; Environmental Monitoring ; Humans ; Metalloids ; Metals ; Particulate Matter/analysis ; Particulate Matter/toxicity ; Plant Leaves/chemistry ; Plant Leaves/drug effects ; Vigna/physiology ; Water
    Chemical Substances Air Pollutants ; Metalloids ; Metals ; Particulate Matter ; Water (059QF0KO0R)
    Language English
    Publishing date 2021-02-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2021.111965
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1418: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
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