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Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1351-9

Abstract: . • The system included a dynamic roughing filter, Cyperus papyrus (L.) and zeolite. • It removed 98.8present investigation demonstrates the synergistic action of using a sedimentation unit together with Cyperuspapyrus (L.) wetland enriched with zeolite mineral in one-year round experiment for treating wastewater

Keywords： Wastewater     dynamic roughing filter     <i>Cyperus papyrusi> (L.)     zeolite     zero waste    

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Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 203-209 doi: 10.1007/s11705-012-1277-2

Abstract: Antifungal activity of recombinant medicinal leech destabilase-lysozyme (rec.Dest-Lys) was investigated by using fungi: , and , including yeasts and . Its antibacterial activity was investigated on gram-negative bacteria . These activities were assessed by radial agar diffusion assay, and scanning and transmission electron microscopy. Therefore, destabilase-lysozyme not only is endo-isopeptidase and lysozyme, but also has antifungal and antibacterial activities. Muramidase activity of rec.Dest-Lys disappeared after heat-treating at 90°C for 50 min without the loss of its antimicrobial activity. Furthermore we showed for the first time that the heated-up derivative of rec.Dest-Lys exhibited more potent activities against the above enumerated fungi and gram-negative bacteria than original protein.

Keywords： recombinant destabilase-lysozyme (rec.Dest-Lys)     antimicrobial activity     antifungal activity     medicinal leech     heated-up derivative of rec.Dest-Lys (T-rec.Dest-Lys)    

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<i>Aphanomyces euteichesi>: A Threat to Canadian Field Pea Production Review

Longfei Wu,Kan-Fa Chang,Robert L.

Engineering 2018, Volume 4, Issue 4,   Pages 542-551 doi: 10.1016/j.eng.2018.07.006

Abstract:

Field pea (Pisum sativum var. arvense L.) is an important legume crop around the world.

Keywords： Field pea     <i>Aphanomyces euteichesi>     Root rot     Pathogenicity variability     Quantitative trait loci    

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Oral product input to the GI tract: GIS an oral product performance technology

Gordon L. Amidon, Yasuhiro Tsume

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 516-520 doi: 10.1007/s11705-017-1658-7

Abstract: If the 20th century was the ‘age of the drug’, i.e., the ‘magic bullet’, the 21st century must becomethe ‘age of the guided missile’, i.e., the delivery system, including the form of the active pharmaceutical

Keywords： GIS     <i>in vivoi> predictive dissolution     ketoconazole     BCS subclassification     supersaturation    

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Photosynthesis and related metabolic mechanism of promoted rice (<i>Oryza sativai> L.) growth by TiO2 nanoparticles

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1282-5

Abstract: Abstract • The rice growth was promoted by nano-TiO2 of 0.1–100 mg/L. • Nano-TiO2 enhanced the energythe effects of nano-TiO2 exposure on related physiologic-biochemical properties of rice (Oryza sativa L.Results showed that rice biomass was increased >30% at every applied dosage (0.1–100 mg/L) of nano-TiO2photosynthetic rate (Y(II)) significantly increased by 10.0% and 17.2% in the treatments of 10 and 100 mg/L

Keywords： Nano-TiO2     Rice     Photosynthesis     Metabolomics     Energy storage    

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Association between heavy metals and antibiotic-resistant human pathogens in environmental reservoirs: A review

Hugie, Molly L. Kile, Tala Navab-Daneshmand

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1129-0

Abstract:

<i>P. aeruginosai> and <i>E. colii> are commonly

Keywords： Zinc     Cadmium     Copper     Lead     <i>E. colii>     <i>P. aeruginosai>    

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Dual enzyme activated fluorescein based fluorescent probe

Maria L. Odyniec, Jordan E. Gardiner, Adam C. Sedgwick, Xiao-Peng He, Steven D. Bull, Tony D. James

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 117-121 doi: 10.1007/s11705-018-1785-9

Abstract: A simple dual analyte fluorescein-based probe ( ) was synthesised containing -glucosidase ( -glc) and hydrogen peroxide (H O ) trigger units. The presence of -glc, resulted in fragmentation of the parent molecule releasing glucose and the slightly fluorescent mono-boronate fluorescein ( ). Subsequently, in the presence of glucose oxidase (GOx), the released glucose was catalytically converted to D-glucono- -lactone, which produced H O as a by-product. The GOx-produced H O resulted in classic H O -mediated boronate oxidation and the release of the highly emissive fluorophore, fluorescein. This unique cascade reaction lead to an 80-fold increase in fluorescence intensity.

Keywords： chemosensors     dual-activation     GOx     fluorescence     <i>βi>-glucosidase     molecular logic    

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Effects of nano-silicon and common silicon on lead uptake and translocation in two rice cultivars

Jianguo LIU,Hui CAI,Congcong MEI,Mingxin WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 905-911 doi: 10.1007/s11783-015-0786-x

Abstract: The current study investigated the effects of nano-silicon (Si) and common Si on lead (Pb) toxicity, uptake, translocation, and accumulation in the rice cultivars Yangdao 6 and Yu 44 grown in soil containing two different Pb levels (500 mg·kg and 1000 mg·kg ). The results showed that Si application alleviated the toxic effects of Pb on rice growth. Under soil Pb treatments of 500 and 1000 mg·kg , the biomasses of plants supplied with common Si and nano-Si were 1.8%–5.2% and 3.3%–11.8% higher, respectively, than those of plants with no Si supply (control). Compared to the control, Pb concentrations in rice shoots supplied with common Si and nano-Si were reduced by 14.3%–31.4% and 27.6%–54.0%, respectively. Pb concentrations in rice grains treated with common Si and nano-Si decreased by 21.3%–40.9% and 38.6%–64.8%, respectively. Pb translocation factors (TFs) from roots to shoots decreased by 15.0%–29.3% and 25.6%–50.8%, respectively. The TFs from shoots to grains reduced by 8.3%–13.7% and 15.3%–21.1%, respectively, after Si application. The magnitudes of the effects observed on plants decreased in the following order: nano-Si treatment>common Si treatment and high-grain-Pb-accumulating cultivar (Yangdao 6)>low-grain-Pb-accumulating cultivar (Yu 44) and heavy Pb stress (1000 mg·kg )>moderate Pb stress (500 mg·kg )>no Pb treatment. The results of the study indicate that nano-Si is more efficient than common Si in ameliorating the toxic effects of Pb on rice growth, preventing Pb transfer from rice roots to aboveground parts, and blocking Pb accumulation in rice grains, especially in high-Pb-accumulating rice cultivars and in heavily Pb-polluted soils.

Keywords： silicon (Si)     lead (Pb)     rice (<i>Oryza sativai> L.)     toxicity     accumulation    

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Utilisation of waste heat from exhaust gases of drying process

Arsenyeva,Lidija Čuček,Leonid L. Tovazhnyanskyy,Petro O. Kapustenko,Yana A.Kusakov,Oleksandr I. Matsegora

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 131-138 doi: 10.1007/s11705-016-1560-8

Abstract: Nowadays a lot of low-grade heat is wasted from the industry through the off- and flue-gasses with different compositions. These gases provide the sensitive heat with utilisation potential and latent heat with the components for condensation. In this paper, process integration methodology has been applied to the partly condensed streams. A hot composite curve that represents the gas mixture cooling according to equation of state for real gases was drawn to account the gas-liquid equilibrium. According to the pinch analysis methodology, the pinch point was specified and optimal minimal temperature difference was determined. The location of the point where gas and liquid phases can be split for better recuperation of heat energy within heat exchangers is estimated using the developed methodology. The industrial case study of tobacco drying process off-gasses is analysed for heat recovery. The mathematical model was developed by using MathCad software to minimise the total annualised cost using compact plate heat exchangers for waste heat utilisation. The obtained payback period for the required investments is less than six months. The presented method was validated by comparison with industrial test data.

Keywords： exhaust gas     waste heat     process integration     plate heat exchanger    

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Identification of pakchoi cultivars with low cadmium accumulation and soil factors that affect their cadmium uptake and translocation

Lin WANG,Yingming XU,Yuebing SUN,Xuefeng LIANG,Dasong LIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 877-887 doi: 10.1007/s11783-014-0676-7

Abstract: The selection and use of low-Cd-accumulating cultivar (LCAC) has been proposed as one of the promising approaches in minimizing the entry of Cd in the human food chain. This study suggests a screening criterion of LCACs focusing on food safety. Pot culture and plot experiments were conducted to screen out LCACs from 35 pakchoi cultivars and to identify the crucial soil factors that affect Cd accumulation in LCACs. Results of the pot culture experiment showed that shoot Cd concentrations under the three Cd treatments significantly varied across cultivars. Two cultivars, Hualv 2 and Huajun 2, were identified as LCACs because their shoot Cd concentrations were lower than 0.2 mg·kg under low Cd treatment and high Cd exposure did not affect the biomass of their shoots. The plot experiment further confirmed the consistency and genotypic stability of the low-Cd-accumulating traits of the two LCACs under various soil conditions. Results also showed that soil phosphorus availability was the most important soil factor in the Cd accumulation of pakchoi, which related negatively not only to Cd uptake by root but also to Cd translocation from root to shoot. The total Cd accumulation and translocation rates were lower in the LCACs than in the high-Cd cultivar, suggesting that Cd accumulation in different cultivars is associated with the Cd uptake by root as well as translocation from root to shoot. This study proves the feasibility of the application of the LCAC strategy in pakchoi cultivation to cope with Cd contamination in agricultural soils.

Keywords： pakchoi (<i>Brassica chinensisi> L.)    

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Successful production of an all-female common carp (<i>Cyprinus carpioi> L.) population using <i>cyp17a1i>-deficient neomale carp Article

Gang Zhai,Tingting Shu,Kuangxin Chen,Qiyong Lou,Jingyi Jia,Jianfei Huang,Chuang Shi,Xia Jin,Jiangyan He,Donghuo Jiang,Xueqiao Qian,Wei Hu,Zhan Yin,

Engineering 2022, Volume 8, Issue 1,   Pages 181-189 doi: 10.1016/j.eng.2021.03.026

Abstract: novel strategy for the successful production of all-female (AF) common carp (Cyprinus carpio L.

Keywords： Common carp     Sexual dimorphism     Growth     <i>cyp17a1i>     Sex steroids     All-female population    

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In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1730-0

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Comments on the special issue on forestry of

John L. INNES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 502-503 doi: 10.15302/J-FASE-2017189

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Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 373-387 doi: 10.1007/s11709-014-0087-7

Abstract: Normal strength prestressed concrete I-girders are commonly used as the primary superstructure componentsdeveloped based on the test results to predict the ultimate shear strength of prestressed concrete I-girders

Keywords： shear design     high strength concrete     prestressed girders     full-scale tests    

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♮-convexity and its applications in operations

Xin CHEN

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 283-294 doi: 10.15302/J-FEM-2017057

Abstract: -convexity, one of the central concepts in discrete convex analysis, receives significant attentions in the operations literature in recent years as it provides a powerful tool to derive structures of optimal policies and allows for efficient computational procedures. In this paper, we present a survey of key properties of -convexity and some closely related results in lattice programming, several of which were developed recently and motivated by operations applications. As a new contribution to the literature, we establish the relationship between a notion called -differential monotonicity and -convexity. We then illustrate the techniques of applying -convexity through a detailed analysis of a perishable inventory model and a joint inventory and transshipment control model with random capacities.

Keywords： <i>Li>&natur     -convexity     lattice programming     perishable inventory models     random capacity    

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Title Author Date Type Operation

Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Journal Article

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Journal Article

<i>Aphanomyces euteichesi>: A Threat to Canadian Field Pea Production

Longfei Wu,Kan-Fa Chang,Robert L.

Journal Article

Oral product input to the GI tract: GIS an oral product performance technology

Gordon L. Amidon, Yasuhiro Tsume

Journal Article

Photosynthesis and related metabolic mechanism of promoted rice (<i>Oryza sativai> L.) growth by TiO2 nanoparticles

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Journal Article

Association between heavy metals and antibiotic-resistant human pathogens in environmental reservoirs: A review

Hugie, Molly L. Kile, Tala Navab-Daneshmand

Journal Article

Dual enzyme activated fluorescein based fluorescent probe

Maria L. Odyniec, Jordan E. Gardiner, Adam C. Sedgwick, Xiao-Peng He, Steven D. Bull, Tony D. James

Journal Article

Effects of nano-silicon and common silicon on lead uptake and translocation in two rice cultivars

Jianguo LIU,Hui CAI,Congcong MEI,Mingxin WANG

Journal Article

Utilisation of waste heat from exhaust gases of drying process

Arsenyeva,Lidija Čuček,Leonid L. Tovazhnyanskyy,Petro O. Kapustenko,Yana A.Kusakov,Oleksandr I. Matsegora

Journal Article

Identification of pakchoi cultivars with low cadmium accumulation and soil factors that affect their cadmium uptake and translocation

Lin WANG,Yingming XU,Yuebing SUN,Xuefeng LIANG,Dasong LIN

Journal Article

Successful production of an all-female common carp (<i>Cyprinus carpioi> L.) population using <i>cyp17a1i>-deficient neomale carp

Gang Zhai,Tingting Shu,Kuangxin Chen,Qiyong Lou,Jingyi Jia,Jianfei Huang,Chuang Shi,Xia Jin,Jiangyan He,Donghuo Jiang,Xueqiao Qian,Wei Hu,Zhan Yin,

Journal Article

In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Journal Article

Comments on the special issue on forestry of

John L. INNES

Journal Article

Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Journal Article

♮-convexity and its applications in operations

Xin CHEN

Journal Article