Water science and engineering最新文献_第2页

Evaluation of treatment and energy efficiencies of an advanced electrochemical system for Chlorella removal equipped with aluminum, graphite, and RGO nanoparticles-coated cathodes 评估采用铝、石墨和 RGO 纳米粒子涂层阴极的先进电化学系统去除小球藻的处理效率和能源效率

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2024-01-11 DOI: 10.1016/j.wse.2023.12.004

Advanced material sciences and technologies can help to address environmental challenges in order to achieve sustainable development goals by developing innovative materials capable of mitigating energy consumption in treatment systems. In this study, an innovative electrocoagulation unit for algae removal was optimized, and the effects of various variables, including novel cathode materials (i.e., graphite and reduced graphene oxide nanoparticles), on treatment efficiency and energy consumption were evaluated. Reduced graphene oxide nanoparticles were synthesized and then immobilized on the graphite cathode surface with the modified Hummer's method. Stabilization of nanoparticles was achieved with polytetrafluoroethylene. The use of the reduced graphene oxide nanoparticles-coated cathode led to a significant decrease (42.93%) in energy consumption, compared to the case with an aluminum cathode. In the optimum conditions (a current density of 3 mA/cm², an electrolyte concentration of 2 g/L, an electrode surface area of 56 cm², a processing time of 60 min, and a sedimentation time of 30 min), the novel electrocoagulation unit, equipped with an aluminum anode and a reduced graphene oxide nanoparticles-coated cathode electrode, achieved removal efficiencies of 72.69% for Chlorella species and 72.96% for turbidity.

先进的材料科学与技术有助于应对环境挑战，通过开发能够降低处理系统能耗的创新材料，实现可持续发展目标。在本研究中，对用于去除藻类的创新电凝装置进行了优化，并评估了包括新型阴极材料（即石墨和还原氧化石墨烯纳米颗粒）在内的各种变量对处理效率和能耗的影响。首先合成了还原氧化石墨烯纳米粒子，然后用改进的汉默法将其固定在石墨阴极表面。纳米颗粒的稳定是通过聚四氟乙烯实现的。与使用铝阴极的情况相比，使用还原氧化石墨烯纳米颗粒涂层阴极可显著降低能耗（42.93%）。在最佳条件下（电流密度为 3 mA/cm2、电解质浓度为 2 g/L、电极表面积为 56 cm2、处理时间为 60 分钟、沉淀时间为 30 分钟），配备铝阳极和氧化石墨烯纳米颗粒涂层阴极电极的新型电凝装置对小球藻的去除率为 72.69%，对浊度的去除率为 72.96%。

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引用次数: 0

Impact of geometric features of impermeable discrete bedform on hyporheic exchange 不透水离散床形的几何特征对水汽交换的影响

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2024-01-11 DOI: 10.1016/j.wse.2024.01.003

The bedform-driven hyporheic exchange plays a crucial role in mass transport within natural aquatic ecosystems like streams and rivers. This study aimed to unveil the impact of geometric features of impermeable discrete bedforms on hyporheic exchange by experimentally measuring quantitative hyporheic exchange flux data and variation characteristics in an annual flume. The experiments encompassed diverse conditions involving the ratio of bedform wavelength (λ) to wave height (h) and relative submergence. The study also analyzed the dependence of the effective diffusion coefficient on the geometric characteristics of bedform composition elements. The experimental results showed that, in comparison to a permeable flat bed, the presence of an impermeable discrete bedform tended to either attenuate or enhance hyporheic exchange, contingent on the geometric characteristics of bedform composition elements. The hyporheic exchange flux exhibited an initially increase followed by a decrease with increasing λ/h, with turbulence penetration emerging as the dominant mechanism governing hyporheic exchange for cases with relatively denser bedform composition elements (e.g., λ/h = 4.0). The effective diffusion coefficient peaked at λ/h around 6.0–8.0, owing to a significant augmentation in the relative contribution of pumping exchange to gross hyporheic exchange. Furthermore, the hyporheic exchange intensity generally increased with decreasing relative submergence, primarily attributed to the augmented relative contribution of pumping exchange to gross hyporheic exchange.

在溪流和河流等自然水生生态系统中，床面驱动的水汽交换在质量输运中起着至关重要的作用。本研究旨在通过实验测量年水槽中的定量水汽交换通量数据和变化特征，揭示不透水离散床形的几何特征对水汽交换的影响。实验条件多种多样，包括床面波长（λ）与波高（h）之比和相对浸没度。研究还分析了有效扩散系数与床形组成元素几何特征的关系。实验结果表明，与透水性平床相比，不透水的离散床形的存在往往会减弱或增强水流交换，这取决于床形组成要素的几何特征。随着 λ/h 的增加，水汽交换通量呈现先增加后减少的趋势，在床形组成元素相对较密（如 λ/h = 4.0）的情况下，湍流渗透成为支配水汽交换的主要机制。当 λ/h 在 6.0-8.0 左右时，有效扩散系数达到峰值，这是因为抽水交换对总体水汽交换的相对贡献显著增加。此外，随着相对淹没度的降低，水文交换强度普遍增大，这主要是由于抽水交换对总水文交换的相对贡献增大。

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引用次数: 0

Tidal asymmetry and mud transport in Oualidia Lagoon: Actual conditions in 2012 and rehabilitation scenarios 瓦利迪亚泻湖的潮汐不对称和泥浆输送：2012 年的实际情况和修复方案

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2024-01-10 DOI: 10.1016/j.wse.2024.01.002

Oyster aquaculture in Oualidia Lagoon, Morocco, has suffered from poor water quality and water confinement in its upstream region. Tidal asymmetry (TA) has been suggested as a possible cause, and a sediment trap was dredged in 2011 to mitigate this condition. This study addresses TA in the lagoon using field measurements and numerical modeling in the presence of the sediment trap. Results indicate that the lagoon is flood-dominated mostly in its upstream end, where frictional forces exceed inertia accelerations during the tidal cycle and fine sediments settle on the tidal flats and inside the sediment trap. However, this study shows that a large mass of suspended sediments is exported to the ocean, which is contrary to expectations in flood-dominated lagoons. Defining the sediment trap as the rehabilitation scenario S1, the impacts of three additional scenarios on TA are examined. These are scenario S2 (dredging the upstream section of the main channel), scenario S3 (dredging the channels surrounding the flood delta near the inlets), and scenario S4 (raising the ocean level by 0.5 m following climate change predictions). Results show that none of these scenarios modify the tidal flood dominance in the lagoon, although scenarios S2 and S4 decrease its intensity in the upstream region. Nevertheless, all scenarios still contribute to a significant export of sediments to the ocean. This suggests that lagoon management activities should not rely on tidal asymmetry analyses that normally predict upstream sediment transport in flood-dominated lagoons.

摩洛哥瓦利迪亚泻湖（Oualidia Lagoon）的牡蛎养殖一直受到上游地区水质差和水体封闭的影响。潮汐不对称（TA）被认为是可能的原因之一，2011 年曾疏浚沉积物沉淀池以缓解这种状况。本研究采用实地测量和数值建模的方法，在有沉积物沉淀池的情况下研究泻湖中的潮汐不对称现象。研究结果表明，泻湖上游主要以洪水为主，在潮汐周期中，这里的摩擦力超过惯性加速度，细小沉积物沉积在潮滩和沉积物沉淀池内。然而，这项研究表明，大量悬浮沉积物被排入海洋，这与人们对洪水主导型泻湖的预期相反。将沉积物沉淀池定义为修复方案 S1，研究了另外三种方案对 TA 的影响。这三个方案分别是：方案 S2（疏浚主航道上游段）、方案 S3（疏浚洪水三角洲附近进水口的航道）和方案 S4（根据气候变化预测，将海平面提高 0.5 米）。结果表明，这些方案都没有改变泻湖的潮汐洪水主导地位，尽管方案 S2 和 S4 降低了上游地区的洪水强度。不过，所有情景仍会导致大量沉积物流入海洋。这表明，泻湖管理活动不应依赖通常预测洪水主导泻湖上游沉积物迁移的潮汐不对称分析。

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引用次数: 0

Enhanced total nitrogen removal and membrane fouling control by increasing biomass in MBR equipped with ceramic membrane 在配备陶瓷膜的 MBR 中通过增加生物量提高总氮去除率和膜堵塞控制能力

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2024-01-03 DOI: 10.1016/j.wse.2024.01.001

Simultaneous nitrification and denitrification (SND) is an efficient method to remove nitrogen in municipal wastewater treatment. However, low dissolved oxygen (DO) concentrations are generally required, leading to serious membrane fouling in membrane bioreactors (MBRs). This study aimed to clarify the synergistic effect of biomass and DO on nitrogen removal and membrane fouling. To achieve this goal, four submerged MBRs equipped with ceramic membranes were operated with different biomass (mixed liquor suspended solids (MLSS)) concentrations (3 000 mg/L, 5 000 mg/L, 7 500 mg/L, and 12 000 mg/L) under various DO concentrations (2.0 mg/L, 1.0 mg/L, and 0.5 mg/L). As a result, increasing biomass in the MBRs enhanced total nitrogen (TN) removal via SND, and excellent TN removal efficiencies of 60.7% and 75.8% were obtained using the MBR with an MLSS concentration of 12 000 mg/L and DO concentrations of 2.0 mg/L and 1.0 mg/L. However, a further decrease in DO deteriorated TN removal due to the inhibition of nitrification. Moreover, high MLSS concentrations were beneficial to membrane fouling control for ceramic membranes in MBRs. The lowest transmembrane pressure development rate was observed for the MBR with an MLSS concentration of 12 000 mg/L. High biomass offset the adverse effect of DO decrease on membrane fouling to some extent, and improved the stability of the reactor. Therefore, biomass might be an important parameter for membrane fouling reduction in ceramic MBRs. Overall, optimal biomass and DO concentrations for TN removal were identified, providing useful information for the successful operation of MBRs with efficient TN removal and membrane fouling control.

在城市污水处理中，同时硝化和反硝化（SND）是一种有效的脱氮方法。然而，这种方法通常需要较低的溶解氧（DO）浓度，从而导致膜生物反应器（MBR）中膜严重堵塞。本研究旨在阐明生物质和溶解氧对脱氮和膜堵塞的协同效应。为实现这一目标，在不同溶解氧浓度（2.0 毫克/升、1.0 毫克/升和 0.5 毫克/升）条件下，使用不同生物量（混合液悬浮固体（MLSS））浓度（3 000 毫克/升、5 000 毫克/升、7 500 毫克/升和 12 000 毫克/升）运行了四个配备陶瓷膜的浸没式 MBR。因此，在 MLSS 浓度为 12 000 mg/L、溶解氧浓度为 2.0 mg/L 和 1.0 mg/L 的 MBR 中，生物量的增加提高了通过 SND 去除总氮 (TN) 的效果，TN 去除率分别达到 60.7% 和 75.8%。然而，由于硝化作用受到抑制，溶解氧的进一步减少会降低 TN 的去除率。此外，高浓度的 MLSS 有利于控制 MBR 中陶瓷膜的膜堵塞。在 MLSS 浓度为 12 000 mg/L 的 MBR 中观察到最低的跨膜压力发展率。高生物量在一定程度上抵消了溶解氧减少对膜堵塞的不利影响，并提高了反应器的稳定性。因此，生物量可能是陶瓷 MBR 中减少膜污垢的一个重要参数。总之，确定了去除 TN 的最佳生物量和溶解氧浓度，为高效去除 TN 和控制膜污垢的 MBR 的成功运行提供了有用的信息。

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引用次数: 0

Preparation and enhanced photocatalytic performance of N-TiO2/g-C3N4 heterostructure for Rhodamine B degradation 用于降解罗丹明 B 的 N-TiO2/g-C3N4 异质结构的制备及其增强的光催化性能

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-30 DOI: 10.1016/j.wse.2023.12.007

Highly efficient photocatalysts have been developed for the degradation of contaminated water under visible light. In this study, N-doped TiO₂ (N-TiO₂) and metal-free graphitic carbon nitride (g-C₃N₄) composites with various Ti/C molar ratios were prepared with the simple mixing-calcining method. The samples were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet–visible diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The photocatalytic activity of N-TiO₂/g-C₃N₄ in the degradation of Rhodamine B (RhB) was investigated, and the electrochemical method was used to determine the origin of the enhanced photoactivity of N-TiO₂/g-C₃N₄. The results showed that N-TiO₂ nanoparticles were dispersed on the surface of g-C₃N₄ and formed a stable heterojunction structure with g-C₃N₄. The heterojunction between the two semiconductors could effectively prevent the recombination of photogenerated electrons and holes and improve the photocatalytic efficiency of the photocatalyst under visible light irradiation. The photocatalyst exhibited high stability, and the RhB degradation rate was still higher than 82.3% after five cycles.

目前已开发出高效光催化剂，用于在可见光下降解受污染的水。本研究采用简单的混合-煅烧法制备了不同 Ti/C 摩尔比的 N 掺杂 TiO2（N-TiO2）和无金属氮化石墨碳（g-C3N4）复合材料。通过 X 射线衍射、扫描电子显微镜、紫外可见光漫反射光谱和光致发光光谱对样品进行了表征。研究了 N-TiO2/g-C3N4 降解罗丹明 B（RhB）的光催化活性，并采用电化学方法确定了 N-TiO2/g-C3N4 光活性增强的原因。结果表明，N-TiO2 纳米颗粒分散在 g-C3N4 表面，并与 g-C3N4 形成了稳定的异质结结构。两种半导体之间的异质结可以有效防止光生电子和空穴的重组，提高光催化剂在可见光照射下的光催化效率。该光催化剂具有很高的稳定性，经过五个循环后，RhB 的降解率仍高于 82.3%。

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引用次数: 0

Prediction of wetting pattern dimensions under moistube irrigation with a multivariate nonlinear model 用多元非线性模型预测湿润管灌溉下的湿润模式尺寸

IF 4 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-28 DOI: 10.1016/j.wse.2023.12.006

Yan-wei Fan, Chong Ren, Zhi-wei Yang, Chang-yan Zhang, Wei-fan Yin

Moistube irrigation is a new micro-irrigation technology. Accurately estimating its wetting pattern dimensions presents a challenge. Therefore, it is necessary to develop models for efficient assessment of the wetting transport pattern in order to design a cost-effective moistube irrigation system. To achieve this goal, this study developed a multivariate nonlinear regression model and compared it with a dimensional model. HYDRUS-2D was used to perform numerical simulations of 56 irrigation scenarios with different factors. The experiments showed that the shape of the wetting soil body approximated a cylinder and was mainly affected by soil texture, pressure head, and matric potential. A multivariate nonlinear model using a power function relationship between wetting size and irrigation time was developed, with a determination coefficient greater than 0.99. The model was validated for cases with six soil texture types, with mean average absolute errors of 0.43–0.90 cm, root mean square errors of 0.51–0.95 cm, and mean deviation percentage values of 3.23%–6.27%. The multivariate nonlinear regression model outperformed the dimensional model. It can therefore provide a scientific foundation for the development of moistube irrigation systems.

湿管灌溉是一种新型微灌技术。准确估算其湿润模式尺寸是一项挑战。因此，有必要开发有效评估湿润传输模式的模型，以便设计出经济高效的湿润管灌溉系统。为实现这一目标，本研究开发了一个多变量非线性回归模型，并将其与维度模型进行了比较。使用 HYDRUS-2D 对 56 种不同因素的灌溉方案进行了数值模拟。实验结果表明，润湿土体的形状近似于圆柱体，主要受土壤质地、压头和母质势的影响。利用润湿大小与灌溉时间之间的幂函数关系，建立了一个多变量非线性模型，其确定系数大于 0.99。该模型对六种土壤质地类型进行了验证，平均绝对误差为 0.43-0.90 厘米，均方根误差为 0.51-0.95 厘米，平均偏差百分比值为 3.23%-6.27%。多元非线性回归模型优于维度模型。因此，它可以为湿润管灌溉系统的开发提供科学依据。

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引用次数: 0

Properties of dredged material and potential scope of its beneficial use: A case study of the Pussur River in Bangladesh 疏浚材料的特性及其有益利用的潜在范围：孟加拉国普苏尔河案例研究

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-28 DOI: 10.1016/j.wse.2023.12.005

The Pussur River, an important river in Bangladesh, requires approximately 6 × 10⁶ m³ of sediment to be dredged per year. At present, this dredged material is mainly dumped on the nearby agricultural and fish-cultivation lands, causing a reduction in productive land and producing negative impacts on people's livelihoods. This study aimed to investigate the engineering and environmental properties of the dredged sand of the Pussur River and evaluate the viability of its potential uses in different sectors. Bed sediments from the Pussur River and dredged material from disposal sites were collected, and laboratory investigations were performed. The test results showed that the dredged material of the Pussur River mainly consisted of fine sand with a fineness modulus ranging from 0.58 to 0.72 and could be classified as poorly graded sand according to the Unified Soil Classification System. This sand was also found suitable for land development, with a fair to poor suitability rating. Given the low concentration of heavy metals (at uncontaminated/slightly contaminated levels), the dredged sand might be safely used for land reclamation, landfill cover, and horticultural purposes, or else for other geotechnical applications without further treatment. After washing/leaching, the dredged sand could also be used as a partial replacement for local sand in concrete works. Moreover, there is a possibility of exporting the dredged sand to Singapore and the Maldives as filling material. These findings will help policymakers design dredging projects with a proper spoil management plan accounting for the dredged material's beneficial use.

普苏尔河是孟加拉国的一条重要河流，每年需要疏浚约 6 × 106 立方米的沉积物。目前，这些疏浚物主要被倾倒在附近的农田和鱼类养殖地，导致生产用地减少，对人们的生活造成负面影响。本研究旨在调查普苏尔河疏浚沙的工程和环境特性，并评估其在不同领域的潜在用途的可行性。研究人员收集了普苏尔河的河床沉积物和弃置场的疏浚材料，并进行了实验室调查。测试结果表明，普苏尔河的疏浚物主要由细沙组成，细度模数在 0.58 至 0.72 之间，根据 "统一土壤分类系统"，可归类为等级较差的沙。这种沙土也被认为适合土地开发，适宜性评级为一般至较差。由於重金屬含量低（處於未受污染或輕微污染的水平），疏浚後的海砂可安全地用作填海、堆填區覆蓋及園藝用途，或其他土力工程用途，而無須作進一步處理。经过清洗/浸出后，疏浚沙还可在混凝土工程中部分替代本地沙。此外，还可以将挖出的沙子作为填充材料出口到新加坡和马尔代夫。这些研究结果将有助于决策者在设计疏浚工程时，考虑到疏浚材料的有益用途，制定适当的弃置物管理计划。

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引用次数: 0

A review of microplastic surface interactions in water and potential capturing methods 水中微塑料表面相互作用及潜在捕捉方法综述

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-21 DOI: 10.1016/j.wse.2023.11.008

Microplastics are emerging micropollutants in water threatening aquatic and land organisms. The microplastic–water system is complicated due to the multiple constituents in the water system and the minuscule size of the plastic waste. Although typical plastic-based materials are inert, the behavior of fragmented plastics is arbitrary and indefinite. When exposed to erratic water environments with the presence of organic and synthetic impurities, pH, temperature, and salt, microplastic surfaces may be potentially active and generate charges in water. These phenomena determine microplastics in water as a colloidal system. The classical Derjaguin Landau Verwey and Overbeek (DLVO) theory can be used to identify the microplastic surface behavior in water. The modification of microplastic surfaces eventually determines the overall interactions between microplastics and other constituents in water. Moreover, the geometry of microplastics and additives present in microcontaminants play a crucial role in their net interactions. Hence, multiple microplastic removal techniques, such as coagulation, filtration, and air flotation, can be developed to address the issue. In many cases, a combination of these methods may be needed to achieve the overall procedure in water treatment plants or generic water systems. Selection of an appropriate microplastic removal technique is crucial and should be based on the water environment and intended water use to ensure its safety.

微塑料是水中新出现的微污染物，威胁着水生和陆地生物。由于水系统中的多种成分和塑料垃圾的微小尺寸，微塑料-水系统非常复杂。虽然典型的塑料基材料是惰性的，但碎裂塑料的行为是任意和不确定的。当暴露在存在有机和合成杂质、pH 值、温度和盐分的不稳定的水环境中时，微塑料表面可能具有潜在的活性，并在水中产生电荷。这些现象决定了水中的微塑料是一个胶体系统。经典的 Derjaguin Landau Verwey and Overbeek（DLVO）理论可用于识别微塑料表面在水中的行为。微塑料表面的改性最终决定了微塑料与水中其他成分之间的整体相互作用。此外，微塑料的几何形状和微污染物中存在的添加剂对它们之间的净相互作用起着至关重要的作用。因此，可以开发多种去除微塑料的技术来解决这一问题，如混凝、过滤和气浮。在许多情况下，可能需要将这些方法结合起来，才能在水处理厂或通用水系统中实现整体程序。选择适当的微塑料去除技术至关重要，应根据水环境和预期的水用途来确保其安全性。

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引用次数: 0

Assessing impacts of climate change-driven sea level rise on hydrodynamics and sediment dynamics along Ba Lang beaches in Nha Trang Bay, Khanh Hoa, Vietnam 了解气候变化导致的海平面上升对越南庆和省芽庄湾 Ba Lang 海滩水动力和沉积物动力学的影响

IF 3.7 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-21 DOI: 10.1016/j.wse.2023.12.003

The Ba Lang sand beaches, located north of the Nha Trang Bay in Central Vietnam, are famous tourist attractions. However, they are experiencing shoreline and coastal erosion retreat, which is attributed to natural causes (such as tropical depressions, storms, and monsoons) as well as human impacts (such as hydropower generation, sand dredging, and coastal works). According to the forecast of the Vietnam Ministry of Natural Resources and Environment, global climate change will cause the sea level to rise by 74 cm along the coast from the Dai Lanh Cape to the Ke Ga Cape (including the Ba Lang beaches) by the end of this century in the representative concentration pathway (RCP) 8.5 scenario. Sea level rise (SLR) due to global climate change is expected to aggravate the coastal erosion and shoreline retreat problems. In this study, coupled numerical models with the spectral wave module (MIKE 21 SW), hydrodynamic module (MIKE 21 HD), and sand transport module (MIKE 21 ST) in the MIKE 21 package were used to simulate waves, current fields, and sediment dynamics along the Ba Lang beaches considering the impact of SLR. These models were calibrated with the field data measured in December 2016. The results showed that SLR caused the wave height to increase and reduced the current speed and total sediment load in monsoon conditions. The increase in wave height was even intensified under the joint impact of SLR and extreme events.

巴朗沙滩位于越南中部芽庄湾北部，是著名的旅游景点。然而，由于自然原因（如热带低气压、风暴和季风）以及人为影响（如水力发电、挖沙和海岸工程），它们的海岸线和海岸侵蚀正在后退。根据越南自然资源与环境部的预测，到本世纪末，在代表性浓度路径（RCP）8.5 的情况下，全球气候变化将导致从大兰角到基加角（包括巴朗海滩）沿岸的海平面上升 74 厘米。全球气候变化导致的海平面上升预计将加剧海岸侵蚀和海岸线后退问题。本研究使用 MIKE 21 软件包中的波谱模块 (MIKE 21 SW)、流体力学模块 (MIKE 21 HD) 和输沙模块 (MIKE 21 ST) 等耦合数值模型，模拟了波浪、海流场和巴朗海滩沿岸的沉积物动力学，并考虑了 SLR 的影响。这些模型与 2016 年 12 月测量的实地数据进行了校准。结果表明，在季风条件下，SLR 导致波高增加，流速降低，沉积物总量减少。在可持续土地退化和极端事件的共同影响下，波高的增加甚至会加剧。

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引用次数: 0

Head-mounted display-based augmented reality for water quality visualisation 基于头戴式显示器的水质可视化增强现实技术

IF 4 Q1 WATER RESOURCES

Water science and engineering

Pub Date : 2023-12-07 DOI: 10.1016/j.wse.2023.12.002

Jacky Cao , Xiaoli Liu , Xiang Su , Jonas Eilertsen Hædahl , Thomas Berg Fjellestad , Donjete Haziri , André Hoang-An Vu , Jari Koskiaho , Satu Maaria Karjalainen , Anna-kaisa Ronkanen , Sasu Tarkoma , Pan Hui

Water covers most of the Earth’s surface and is nowhere near a good ecological or recreational state in many areas of the world. Moreover, only a small fraction of the water is potable. As climate change-induced extreme weather events become ever more prevalent, more and more issues arise, such as worsening water quality problems. Therefore, protecting invaluable and useable drinking water is critical. Environmental agencies must continuously check water sources to determine whether they are in a good or healthy state regarding pollutant levels and ecological status. The currently available tools are better suited for stationary laboratory use, and domain specialists lack suitable tools for on-site visualisation and interactive exploration of environmental data. Meanwhile, data collection for laboratory analysis requires substantial time and significant effort. We, therefore, developed an augmented reality system with a Microsoft HoloLens 2 device to explore the visualisation of water quality and status in situ. The developed prototype visualises geo-referenced sensor measurements incorporated into the perspective of the surroundings. Any users interested in water bodies’ conditions can quickly examine and retrieve an overview of water body status using augmented reality and then take necessary steps to address the current situation.

水覆盖了地球表面的大部分区域，但在世界许多地区，水的生态和娱乐状况却远未达到良好的水平。此外，只有一小部分水可以饮用。随着气候变化引发的极端天气事件越来越多，越来越多的问题也随之而来，如水质问题日益恶化。因此，保护宝贵的可饮用水至关重要。环境机构必须持续检查水源，以确定其污染物水平和生态状况是否良好或健康。目前可用的工具更适合固定的实验室使用，而领域专家缺乏现场可视化和交互式探索环境数据的合适工具。同时，用于实验室分析的数据收集需要大量时间和精力。因此，我们利用微软 HoloLens 2 设备开发了一个增强现实系统，以探索现场水质和状态的可视化。所开发的原型可将地理参照传感器测量结果融入周围环境的视角中进行可视化。任何对水体状况感兴趣的用户都可以使用增强现实技术快速检查和检索水体状况概览，然后采取必要措施解决当前状况。

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引用次数: 0