The Experts below are selected from a list of 14001 Experts worldwide ranked by ideXlab platform

Matthias Sprenger - One of the best experts on this subject based on the ideXlab platform.

  • interaction of surface Water and groundWater influenced by groundWater over extraction Waste Water Discharge and Water transfer in xiong an new area china
    Water, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Xianfu Zhang, Ruiqiang Yuan, W L Feng, Xingqiang Fang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 22.3% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management.

  • Interaction of Surface Water and GroundWater Influenced by GroundWater Over-Extraction, Waste Water Discharge and Water Transfer in Xiong’an New Area, China
    MDPI AG, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Wenzhao Feng, Xianfu Zhang, Ruiqiang Yuan, Xianfang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 25% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management

Meijia Zhu - One of the best experts on this subject based on the ideXlab platform.

  • interaction of surface Water and groundWater influenced by groundWater over extraction Waste Water Discharge and Water transfer in xiong an new area china
    Water, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Xianfu Zhang, Ruiqiang Yuan, W L Feng, Xingqiang Fang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 22.3% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management.

  • Interaction of Surface Water and GroundWater Influenced by GroundWater Over-Extraction, Waste Water Discharge and Water Transfer in Xiong’an New Area, China
    MDPI AG, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Wenzhao Feng, Xianfu Zhang, Ruiqiang Yuan, Xianfang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 25% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management

Khaled M. Aboshanab - One of the best experts on this subject based on the ideXlab platform.

  • production and statistical optimization of paromomycin by streptomyces rimosus nrrl 2455 in solid state fermentation
    BMC Microbiology, 2021
    Co-Authors: Ghadir S Elhousseiny, Asmaa Ibrahim, Mahmoud A Yassien, Khaled M. Aboshanab
    Abstract:

    Background Paromomycin is a 2-deoxystreptamine aminocyclitol aminoglycoside antibiotic with broad spectrum activity against Gram-negative, Gram-positive bacteria and many protozoa. This study introduces a strategy for paromomycin production through solid-state fermentation using Streptomyces rimosus subsp. paromomycinus NRRL 2455. Solid state fermentation has gained enormous attention in the development of several products because of their numerous advantages over submerged liquid fermentation. After selecting the best solid substrate, a time course study of paromomycin production was carried out followed by optimization of environmental conditions using response surface methodology. Paromomycin yields obtained using this technique were also compared to those obtained using submerged liquid fermentation. Results Upon screening of 6 different substrates, maximum paromomycin concentration (0.51 mg/g initial dry solids) was obtained with the cost-effective agro-industrial byproduct, corn bran, impregnated with aminoglycoside production media. Optimization of environmental conditions using D-optimal design yielded a 4.3-fold enhancement in paromomycin concentration reaching 2.21 mg/g initial dry solids at a pH of 8.5, inoculum size of 5% v/w and a temperature of 30 °C. Conclusion Compared to submerged liquid fermentation, solid state fermentation resulted in comparable paromomycin concentrations, cost reduction of raw materials, less energy consumption and Waste Water Discharge, which have major implications in industrial fermentation. Therefore, solid state fermentation is a promising alternative to submerged liquid fermentation for paromomycin production. To the best of our knowledge, this is the first report on the optimized paromomycin production through solid state fermentation process.

Josep Maspla - One of the best experts on this subject based on the ideXlab platform.

  • assessment by multivariate analysis of groundWater surface Water interactions in urbanized mediterranean streams
    Journal of Hydrology, 2008
    Co-Authors: Anna Mencio, Josep Maspla
    Abstract:

    Summary Streams in Mediterranean areas are characterized by a variable Discharge regime with annual floods and droughts. Natural flow perturbations result in permanent and temporary rivers and, as a consequence, unique ecosystems. Human pressures such as treated and non-treated Waste Water Discharge impact severely on these streams, since Waste Water dilution depends on river flow dynamics. Furthermore, their hydrological status worsens with the capture of stream Discharge by surface or groundWater exploitation. Multivariate analysis has been widely used to analyze large sets of variables in environmental studies. In the present work, a hydrological study reinforced by principal component analysis (PCA), followed by cluster analysis of the PCA results, has been used to determine surface Water origin and its interactions with groundWater in Mediterranean streams. The results show that hydrological observations are supported by PCA and cluster analysis. Additionally, this joint analysis makes it possible to observe the significance of the interaction between streams and aquifers in anthropized Mediterranean Basins. GroundWater exploitation can seriously impact on permanent streams, reducing their dilution capacity, and can even cause the capture of the whole stream Discharge. Furthermore, good quality Water contributions allow continuous stream flows and better Waste Water dilutions all year long. Finally, the results show that the presence and quality of surface Water in temporary reaches during dry periods directly depends on groundWater contributions.

Shiqin Wang - One of the best experts on this subject based on the ideXlab platform.

  • interaction of surface Water and groundWater influenced by groundWater over extraction Waste Water Discharge and Water transfer in xiong an new area china
    Water, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Xianfu Zhang, Ruiqiang Yuan, W L Feng, Xingqiang Fang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 22.3% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management.

  • Interaction of Surface Water and GroundWater Influenced by GroundWater Over-Extraction, Waste Water Discharge and Water Transfer in Xiong’an New Area, China
    MDPI AG, 2019
    Co-Authors: Meijia Zhu, Shiqin Wang, Xiaole Kong, Wenbo Zheng, Wenzhao Feng, Xianfu Zhang, Ruiqiang Yuan, Xianfang Song, Matthias Sprenger
    Abstract:

    Understanding the interaction of surface Water and groundWater affected by anthropogenic activities is of great importance for Water resource and Water quality management. The Xiong’an New Area, located in the North China Plain, has been designated a new building area by China’s government. GroundWater has been over pumped and artificial Water was transferred to meet the Water supply in this region. Therefore, the natural interaction of surface Water and groundWater has been greatly changed and there has been a complex impact of the groundWater from anthropogenic activities. In this study, we used Water chemical ions and stable isotopes of δ2H and δ18O to assess the interaction of surface Water and groundWater in the Xiong’an New Area. We carried out field surveys and Water sampling of the Fu River (domestic Waste Water Discharge), Lake Baiyangdian (artificial Water transfer), and the underlying groundWater along the Water bodies. Results show that the artificial surface Water (Discharged and transferred) became the major recharge source for the local groundWater due to the decline of groundWater table. We used groundWater table observations, end-member mixing analysis of the stable isotopic composition and chloride tracers to estimate the contributions of different recharge sources to the local groundWater. Due to the over pumping of groundWater, the lateral groundWater recharge was dominant with a contribution ratio ranging from 12% to 78% in the upper reach of the river (Sections 1–3). However, the contribution of lateral groundWater recharge was estimated to be negligible with respect to the artificial Water recharge from Lake Baiyangdian. Seepage from the Fu River contributed a significant amount of Water to the connecting aquifer, with a contribution ranging from 14% to 75% along the river. The extent of the river influence into the aquifer ranges as far as 1400 m to the south and 400 m to the north of the Fu River. Estimations based on isotopic fractionation shows that about 25% of Lake Baiyangdian Water was lost by evaporation. By using the stable isotopes of oxygen and hydrogen in the lake Water, an influencing range of 16 km west of the lake was determined. The interaction of the surface Water and groundWater is completely changed by anthropogenic activities, such as groundWater over pumping, Waste Water Discharge and Water transfer. The switched interaction of surface Water and groundWater has a significant implication on Water resources management