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  • Co-selection and stability of bacterial antibiotic

     · The tested arsenic concentrations were chosen according to the levels observed in arsenic pollution incidents in Xinqiang River Duliu River and Yangzonghai Lake (He and Charlet 2013 Rosen and Liu 2009 Wang et al. 2010 Zhang et al. 2008).. In present study the examined arsenic As (III) concentrations were 0.2 0.5 and 1 mg/L and 1 mg

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  • Assessing the use of sand peat soil and pine bark for

    Biofilters have been shown to be efficient for removing pollutants from different water effluents but little information is available about their capacity to remove highly polar pesticides from agricultural run-off waters. In this study we assess the capacity of three different biofilter-supporting materials (sand peat soil and pine bark) to remove five phenoxyacid herbicides (mecoprop

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  • Journal of Earth Science

     · Abstract The nitrogen isotope compositions (δ15N) of sedimentary rocks can provide information about the nutrient N cycling and redox conditions that may have played important roles in biological evolution in Earth s history. Although considerable δ15N data for the Precambrian have been published there is a large gap during the early Neoproterozoic that restrains our understanding of the

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  • Key Technologies of the Hydraulic Structures of the Three

     · 1. Introduction. The Three Gorges Project is located at Sandouping in Yichang City Hubei Province China. The basin area is about 1 10 6 km 2 the average annual flow is 1.43 10 4 m 3 ·s −1 and the average annual runoff is 4.51 10 11 m 3.The main tasks of the Three Gorges Project are flood control power generation navigation and water resource utilization.

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  • The influence of riverbank filtration on regional water

     · The alluvial–proluvial sand and gravel aquifers are mainly located in the floodplains of the Second Songhua River the Yinma River and the Yitong River. The maximum production rate of a single well is 1 000–3 000 m 3 /day.

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  • Iron and Aluminum Hydroxy (Oxide) Coated Filter Media for

    Two media (silica sand and olivine) were used in the experiments and tests were conducted on distilled water artificial groundwater tap water and treated wastewater. The effect of flowrates ranging from 10 to 80 mL/min (3.4 to 27.2 m 3 /m 2 ·h) on phosphate removal efficiencies was

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  • China s environment watchdog declares war on

    China prohibits beach sand exports to protect environment Guangdong News China s environment watchdog declares war on government-backed violations in Yueyang City of central China s Hunan Province flushed waste water with a high concentration of arsenide into the Xinqiang River affecting the water supply for 80 000 residents in the lower

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  • Transport and Deposition in Water-Saturated

     ·  mobility and deposition were determined in model systems consisting of quartz sand or crushed Yucca Mountain tuff latex microspheres (colloidal particles) and simulated groundwater. Ionic strength (I) was manipulated as a first step in defining limiting conditions for transport in a system modeled after geochemical conditions at the Yucca Mountain site. Solutions of deionized

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  • Xinjiang Travel Guide Tour Map History Climate Sights

     · Xinjiang Uygur Autonomous Region is located in the central part of the Eurasian Continent on the northwest border of China. It covers about one-sixth of the country s total territory 1 664 900 square kilometers (about 642 821 square miles) making it the largest administrative division with also the longest land frontier and most neighboring countries in the country.

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  • New gang trials kick off in ChongqingChina Daily

     · Gang boss Wang Xinqiang also penetrated multiple businesses including the transport of construction waste river sand and gravel. His gang is the first to be accused of money laundering.

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  • --UCAS

    LIU L. CAO W. SHAO Q. (2017) "Different Characteristics of Land Cover Changes in Source Region of the Yangtze River and the Yellow River in the Past 30

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  • China s environment watchdog declares war on government

    China prohibits beach sand exports to protect environment Guangdong News China s environment watchdog declares war on government-backed violations in Yueyang City of central China s Hunan Province flushed waste water with a high concentration of arsenide into the Xinqiang River affecting the water supply for 80 000 residents in the lower

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  • Geomatics Natural Hazards and Risk Vol 10

    Investigating climate variability and long-term vegetation activity across heterogeneous Basilicata agroecosystems. Rosa Coluzzi Mariagrazia D Emilio Vito Imbrenda Giuseppina A. Giorgio Maria Lanfredi Maria Macchiato Maria Ragosta Tiziana Simoniello Vito Telesca. Pages . Published online 26 Dec 2018.

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  • Iron and Aluminum Hydroxy (Oxide) Coated Filter Media

    Two media (silica sand and olivine) were used in the experiments and tests were conducted on distilled water artificial groundwater tap water and treated wastewater. The effect of flowrates ranging from 10 to 80 mL/min (3.4 to 27.2 m 3 /m 2 ·h) on phosphate removal efficiencies was

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  • Impact of Sedimentation on Reservoir Hydraulic

     · the sand-bottom ash mixture for stormwater infiltration filter media." Water 9 (1) 32. (5) Wang Zijia Xinqiang Du Yuesuo Yang and Xueyan Ye. 2012. "Surface clogging process modeling of suspended solids during urban stormwater aquifer recharge." Journal of Environmental Sciences . (6) Xinqiang Du Yunqing Fang Zijia Wang Jiawei

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  • Unraveling the complexities of the velocity dependency of

     · Natural graded river sand (River sand Pty Ltd.) with a particle size distribution between 125 and 300 μm was employed in column trans-port experiments. This sand was cleaned using an acid washing and boiling procedure described by Sasidharan et al. (2014). Electrolyte so-lutions of 10 30 50 and 300 mMwere prepared usinganalytical grade

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  • Geomatics Natural Hazards and Risk Vol 10

    Investigating climate variability and long-term vegetation activity across heterogeneous Basilicata agroecosystems. Rosa Coluzzi Mariagrazia D Emilio Vito Imbrenda Giuseppina A. Giorgio Maria Lanfredi Maria Macchiato Maria Ragosta Tiziana Simoniello Vito Telesca. Pages . Published online 26 Dec 2018.

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  • Geochemistry and ecological risk of metal(loid)s in

     · Xinqiang River a tributary of Dongting Lake flows along the lower reaches of the Taolin Pb/Zn mine a working mine for more than 100 years of history before it was abandoned. The high turbidity was due to the ecological degradation of the river caused by the long-term sand mining. On the contrary in the mining district (D2) and the

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  • Corrected Proof

    The river sand had a median grain size of 254.8 μm in diameter as determined by a laser scattering particle size analyzer (Bettersize2000 Baxter Company China).

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  • Mechanism of Suspended Kaolinite Particle Clogging in

     · The column was packed with river sand and added suspensions of kaolinite particles. Calcium chloride and sodium chloride are used as representative ions to study chemical effects. We found that an increase in ionic strength resulted in retention of kaolinite solids in the column with a breakthrough peak of C / C 0 value of 1 to 0.2.

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  • The Prediction Methods for Potential Suspended Solids

     · Highly purified Quartz sand and river sand (predominant mineral composition was quartz with a small amount of feldspar) were adopted as the infiltration medium. The columns were packed with quartz sand in increments of 1cm according to its natural density of 1.6 g/cm3.

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  • (PDF) Mechanism of Suspended Kaolinite Particle Clogging

    The column was packed with river sand and added suspensions of kaolinite particles. Calcium chloride and sodium chloride are used as representative ions to study chemical effects. Xinqiang Du

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  • The Study of Biological Combination System to Remedy the

    As a sewage disposal system a biological combination system of constructed wetlands and sand filters was set up to develop the technology to improve the disposal performance to offer the theoretical foundation and technical parameters for realizing the standardized engineering construc- tion. The results show that 1) The system shows certain removal efficiency to CODCr TN NH4-N and TP

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  • Enhanced soil aggregate stability limits colloidal

     · The loss of phosphorus (P) from agricultural soils has been identified as one of the main causes of eutrophication of lakes in the lower reaches of the Yangtze River in southern China .Statistics have shown that major lakes and reservoirs in this area were eutrophic and mesotrophic 2 3 4 and the Yangtze River Delta region accounted for 17 of the 10 Tg annual increase in soil P around the

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  • The effect of sand particle concentrations on the

     · The plot of the cumulative mass loss rate with time is shown in Fig. 3b. It can be observed that the cumulative mass loss rate at different sand concentrations increases for CSE sharply in the first 1 h and then shows a reversible trend and thereafter remains relatively stable as the time is increased contrast the rate for the CE in pure water increases quickly in the first 2 h and then

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  • Transport and Deposition in Water-Saturated Yucca

     ·  mobility and deposition were determined in model systems consisting of quartz sand or crushed Yucca Mountain tuff latex microspheres (colloidal particles) and simulated groundwater. Ionic strength (I) was manipulated as a first step in defining limiting conditions for transport in a system modeled after geochemical conditions at the Yucca Mountain site. Solutions of deionized

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  • Transport and Deposition in Water-Saturated Yucca

     ·  mobility and deposition were determined in model systems consisting of quartz sand or crushed Yucca Mountain tuff latex microspheres (colloidal particles) and simulated groundwater. Ionic strength (I) was manipulated as a first step in defining limiting conditions for transport in a system modeled after geochemical conditions at the Yucca Mountain site. Solutions of deionized

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  • Dynamics of phosphorus compounds in a lowland river

    Search term. Advanced Search Citation Search. Search

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  • Potential macro-detritivore range expansion into the

     · The layer of river sand in the microcosms was separated from the litter layer using a 1-mm-thick plastic mesh with 1-mm 2 holes which allowed for microbial and moisture exchange between the sand and litter layer but prevented any mixing of soil and litter which would complicate re-collection of the litter. Microcosms were placed on an

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  •  · . Researching Progress and Application Status of Eutrophication Evaluation Method of Seawater. 1 2 3 1 3 1 3 1 3. 1. 100081. 2. 361005. 3

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  • -

     · Tieshan Irrigation Area located in north part of Hunan province and in middle and lower reach of Xinqiang River east to the Dongting Lake has the design irrigation area of 63 600 hm2. It is the second largest irrigation area in Hunan Province.

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  • Former Yangtze fishermen find their feet ashore In-Depth

     · The ban came after decades of human activity-water pollution overfishing sand excavation and quarrying-caused serious environmental damage in the river basin. Last year public security bureaus investigated over 2 300 cases of illegal fishing and cracked more than 2 000 from January to May this year according to the Ministry of Public

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  • New gang trials kick off in ChongqingChina Daily

     · Gang boss Wang Xinqiang also penetrated multiple businesses including the transport of construction waste river sand and gravel. His gang is the first to be accused of money laundering.

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  • Garcons The Pinnacle Duxton

    Committed to quality excellence and innovation each and every person on the team works towards the vision of serving up good food at friendly prices with no pretence. Map. Edit Address. Streetdirectory Map Widget. (c) Streetdirectory. ». Address. The Pinnacle Duxton #01-01

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  • Unraveling the complexities of the velocity dependency

     · Natural graded river sand (River sand Pty Ltd.) with a particle size distribution between 125 and 300 μm was employed in column trans-port experiments. This sand was cleaned using an acid washing and boiling procedure described by Sasidharan et al. (2014). Electrolyte so-lutions of 10 30 50 and 300 mMwere prepared usinganalytical grade

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  • Xinqiang DU Professor PhD Jilin University

    Xinqiang DU Professor Cited by 255 of Jilin University Changchun (JUT) Read 43 publications Contact Xinqiang DU

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