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The Contributions Evaluation of Truck Ro-Ro Shipments in the Upper-stream Yangtze River and Its Developing

Xu Maozeng,Wu Min

Strategic Study of CAE 2008, Volume 10, Issue 2,   Pages 31-34

Abstract: upper-stream of Yangtze River (USYR), and the evolution and present status of the roll-on and roll off shipment(Ro-Ro shipment) in Yangtze River.Then five indicators are proposed to evaluate the contributions of Ro-Ro shipments in the upper-streamResults based on the data in 2005 show that Ro-Ro shipment is a better alternative for truck transport

Keywords： upper-stream Yangtze River     Ro-Ro shipment     evaluation indicator     model developing policy    

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Hydrothermal carbonization of livestock mortality for the reduction of pathogens and microbially-derived DNA

Ro, Bryan L. Woodbury, D. Dee Griffin

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0930-x

Abstract: Hydrothermal carbonization (HTC), utilizing high temperature and pressure, has the potential to treat agricultural waste via inactivating pathogens, antibiotic resistance genes (ARG), and contaminants of emerging concern (CEC) in a environmental and economical manner. Livestock mortality is one facet of agricultural waste that can pose a threat to the surrounding environment. While several methods are utilized to treat livestock mortality, there remains a paucity of data on the elimination of microbially-derived DNA in these treatment practices. This DNA, most notably ARGs, if it survives treatment can be reintroduced in agricultural environments where it could potentially be passed to pathogens, posing a risk to animal and human populations. HTC treatments have been successfully utilized for the treatment of CECs, however very little is understood on how ARGs survive HTC treatment. This study aims to fill this knowledge gap by examining the survivability of microbially-derived DNA in the HTC treatment of livestock mortality. We examined three treatment temperatures (100°C, 150°C, and 200°C) at autogenic pressures at three treatment times (30, 60, and 240 min). We examined the amplification of a plasmid-borne reporter gene carried by DH10B introduced to both beef bone and tissue. Results indicate that while all three temperatures, at all treatment times, were suitable for complete pathogen kill, only temperatures of 150°C and 200°C were sufficient for eliminating microbial DNA. These results serve as the basis for future potential HTC treatment recommendations for livestock mortality when considering the elimination of pathogens and ARGs.

Keywords： High-temperature carbonization     Microbial DNA     Livestock mortality    

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Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0975-x

Abstract: This study was conducted to assess the merits and limitations of various high-pressure membranes, tight nanofiltration (NF) membranes in particular, for the removal of trace organic compounds (TrOCs). The performance of a low-pressure reverse osmosis (LPRO) membrane (ESPA1), a tight NF membrane (NF90) and two loose NF membranes (HL and NF270) was compared for the rejection of 23 different pharmaceuticals (PhACs). Efforts were also devoted to understand the effect of adsorption on the rejection performance of each membrane. Difference in hydrogen bond formation potential (HFP) was taken into consideration. Results showed that NF90 performed similarly to ESPA1 with mean rejection higher than 95%. NF270 outperformed HL in terms of both water permeability and PhAC rejection higher than 90%. Electrostatic effects were more significant in PhAC rejection by loose NF membranes than tight NF and LPRO membranes. The adverse effect of adsorption on rejection by HL and ESPA1 was more substantial than NF270 and NF90, which could not be simply explained by the difference in membrane surface hydrophobicity, selective layer thickness or pore size. The HL membrane had a lower rejection of PhACs of higher hydrophobicity (log D>0) and higher HFP (>0.02). Nevertheless, the effects of PhAC hydrophobicity and HFP on rejection by ESPA1 could not be discerned. Poor rejection of certain PhACs could generally be explained by aspects of steric hindrance, electrostatic interactions and adsorption. High-pressure membranes like NF90 and NF270 have a high promise in TrOC removal from contaminated water.

Keywords： Trace organic compounds (TrOCs)     Nanofiltration (NF)     Adsorption     Membrane properties     Water treatment    

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Economic evaluation of reverse osmosis desalination system coupled with tidal energy

Changming LING, Yifei WANG, Chunhua MIN, Yuwen ZHANG

Frontiers in Energy 2018, Volume 12, Issue 2,   Pages 297-304 doi: 10.1007/s11708-017-0478-2

Abstract: A reverse osmosis (RO) desalination system coupled with tidal energy is proposed.in comparison with the conventional RO system.The optimum feed pressure of the tidal energy RO system is higher than that of the conventional RO systemThe longer lifetime of the tidal energy RO system can save even more water cost.be lower than that of the conventional RO system.

Keywords： reverse osmosis (RO) desalination     tidal energy     model     economic evaluation    

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Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure membrane systems

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 155-163 doi: 10.1007/s11783-014-0740-3

Abstract: Three membrane systems were set up and two brands of reverse osmosis (RO), four low-pressure RO (LPROAll RO and LPRO systems (except for the two severely affected by membrane fouling) demonstrated similarThe electricity consumptions for the RO, LPRO and NF systems were 1.74, 1.10 and 0.72 kWh?The estimated treatment costs by using typical RO, LPRO and tight NF membrane systems were 1.21, 0.98

Keywords： reverse osmosis (RO)     nanofiltration (NF)     water quality standards     sodium     fluoride     cost estimation    

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Preparation and application of thin film composite reverse osmosis and nanofiltration membranes

Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 17-23

Abstract:

Reverse osmosis (RO) and nanofiltration (NF) separation are effectiveIn the present report， series of novel RO as well as NF membranes based on new type of polyacyl chloride

Keywords： RO membrane     nanofiltration membrane     biphenyl polyacyl chloride    

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Molecular Simulations of Water Transport Resistance in Polyamide RO Membranes: Interfacial and Interior Article

Yang Song, Mingjie Wei, Fang Xu, Yong Wang

Engineering 2020, Volume 6, Issue 5,   Pages 577-584 doi: 10.1016/j.eng.2020.03.008

Abstract:

Understanding the transport resistance of water molecules in polyamide (PA) reverse osmosis (RO) membranesHowever, for real-world RO membranes with a 200 nm PA layer, interfacial resistance plays a minor rolethere is a risk of inaccuracy when using the typical method to estimate the transport resistance of RO

Keywords： Transport resistance     Reverse osmosis     Non-equilibrium molecular dynamics     Water molecule affinity     Modeling    

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Preparation and characterization of mixed matrix RO membrane of polyamide and GO

Lu Ying,Zhao Haiyang,Zhang Lin,Hou Li´an

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 84-88

Abstract:

Grephene oxide (GO) mixed matrix reverse osmosis (RO) membranes weremembranes appeared to be more hydrophilic and had higher pure water fluxes than the bared polyamide ROThe mixed matrix RO membrane of polyamide and GO shownbetterchlorine resistance than PA RO membrane.

Keywords： grapheme oxide     polyamide     mixed matrix membrane     reverse osmosis     chlorine resistance    

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The road to sustainable use and waste management of plastics in Portugal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 5-5 doi: 10.1007/s11783-021-1439-x

Abstract:

• Portugal recycles 34% of the 40 kg/hab year of plastic packaging waste.

Keywords： Single-use plastics     Plastic packaging     Plastic waste     Waste management     Waste shipment     Lightweight    

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Title Author Date Type Operation

The Contributions Evaluation of Truck Ro-Ro Shipments in the Upper-stream Yangtze River and Its Developing

Xu Maozeng,Wu Min

Journal Article

Hydrothermal carbonization of livestock mortality for the reduction of pathogens and microbially-derived DNA

Ro, Bryan L. Woodbury, D. Dee Griffin

Journal Article

Role of membrane and compound properties in affecting the rejection of pharmaceuticals by different RO

Yang-ying Zhao, Fan-xin Kong, Zhi Wang, Hong-wei Yang, Xiao-mao Wang, Yuefeng F. Xie, T. David Waite

Journal Article

Economic evaluation of reverse osmosis desalination system coupled with tidal energy

Changming LING, Yifei WANG, Chunhua MIN, Yuwen ZHANG

Journal Article

Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure membrane systems

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

Journal Article

Preparation and application of thin film composite reverse osmosis and nanofiltration membranes

Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo

Journal Article

Molecular Simulations of Water Transport Resistance in Polyamide RO Membranes: Interfacial and Interior

Yang Song, Mingjie Wei, Fang Xu, Yong Wang

Journal Article

Preparation and characterization of mixed matrix RO membrane of polyamide and GO

Lu Ying,Zhao Haiyang,Zhang Lin,Hou Li´an

Journal Article

The road to sustainable use and waste management of plastics in Portugal

Journal Article