Water Resources and Industry最新文献_第4页

Investigating textile wastewater treatment by electro-Fenton method with Fe-MIL-88(A) catalyst composited with graphene oxide 研究了氧化石墨烯复合Fe-MIL-88(A)催化剂处理纺织废水的电fenton法

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-06-17 DOI: 10.1016/j.wri.2025.100302

Farzane Esmaili , Hasti Hasheminejad , Kimia Zarean Mousaabadi

The textile sector is one of the most complex industries that has significant problems due to the high toxicity and non-biodegradable properties of its dyes. Pollutants in this industry are a threat to living organisms and the environment, so their purification is of great importance. Recently, advanced oxidation processes (AOPs) have been more effective than other methods of treating this wastewater. Therefore, the focus of this study is on the synthesis of MIL-88A(Fe)/rGO for the removal of organic substances from textile wastewater using the electro-Fenton method.

MIL-88(A) nanorods were first synthesized by hydrothermal method and embedded in graphene oxide (GO) substrate. Then, the synthesized composite was examined through spectroscopic and microscopic techniques, all analyses showed the correct formation of MIL-88A(Fe)/rGO structure. In each experiment, the value of the current density and the distance of the electrodes were considered equal to 9 Am⁻² and 1 cm, respectively. The response surface method (RSM) was utilized to optimize parameters such as pH, time, the quantity of MIL-88A(Fe)/rGO composite, and the concentration of Na₂S₂O₈ oxidant. The optimal conditions for conducting the test are pH 5, duration of 60 minutes, MIL-88A(Fe)/rGO composite concentration of 0.61 g/L, and oxidizer concentration of 0.017 M. According to the obtained optimal values, COD removal efficiency from textile factory wastewater is statistically and experimentally equal to 76.5 % and 78 %, respectively. The results of the electro-Fenton process demonstrated the promising efficiency of the MIL-88A(Fe)/rGO composite with environmentally friendly titanium and graphite electrodes, surpassing previous studies in accelerating the purification process.

纺织行业是最复杂的行业之一，由于其染料的高毒性和不可生物降解性而存在重大问题。该行业的污染物对生物和环境构成威胁，因此对其进行净化具有重要意义。近年来，深度氧化法（AOPs）比其他方法更有效地处理该废水。因此，本研究的重点是利用电fenton法合成MIL-88A(Fe)/rGO去除纺织废水中的有机物。首先采用水热法合成MIL-88A(A)纳米棒，并将其嵌入氧化石墨烯（GO）衬底中。然后，通过光谱和显微技术对合成的复合材料进行了检测，所有分析都表明MIL-88A(Fe)/rGO结构正确形成。在每个实验中，电流密度的值和电极之间的距离分别为9 Am−2和1 cm。采用响应面法（RSM）对pH、时间、MIL-88A(Fe)/rGO复合材料用量、Na2S2O8氧化剂浓度等参数进行优化。试验的最佳条件为pH为5，持续时间为60 min， MIL-88A(Fe)/rGO复合浓度为0.61 g/L，氧化剂浓度为0.017 m。根据所得到的最优值，对纺织厂废水的COD去除率在统计上和实验上分别为76.5%和78%。电fenton工艺的结果表明，具有环保钛和石墨电极的MIL-88A(Fe)/rGO复合材料具有良好的效率，在加速净化过程方面超越了先前的研究。

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引用次数: 0

Different impacts of landscape pattern and industrial structure on water quality in Yellow River's mainstream and tributary in Gansu, China 甘肃省黄河干支流景观格局和产业结构对水质的不同影响

IF 7.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-10-24 DOI: 10.1016/j.wri.2025.100327

Zhixiang Lu , Jinbo Zhang , Haolin Li , Jiali Xie , Yan Luo , Qi Feng

The water quality of rivers is usually influenced by landscape patterns and industrial structures, but the impact of the COVID-19 pandemic has received less attention. Taking the mainstream and tributary rivers of the Yellow River in Gansu Province as the study area, the correlation between water quality indicators and landscape pattern index, as well as the social and economic factors were analyzed to explain the driving forces of the differences in water quality from 2018 to 2021, moreover, the impact of the COVID-19 pandemic on water quality were investigated. The water quality of the mainstream and tributary rivers was improving, except the Taohe River; however, the monthly nitrogen source pollution in the Weihe River (3.58–11.19 mg/L for TN and 0.25–1.88 mg/L for NH₄⁺-N), Jinghe River (2.66–8.18 mg/L for TN and 0.25–1.69 mg/L for NH₄⁺-N) and Zhuanglang River (1.20–6.75 mg/L for TN and 0.18–0.65 mg/L for NH₄⁺-N) still had high levels, and the average values of TN even fall within the Class V standard. Water quality is positively correlated with the aggregation degree and connectivity of landscape, but the risk of water pollution increased with the increase of the degree of landscape fragmentation and dispersion. The NH₄⁺-N, TP, CODMn and COD are influenced by rural domestic and agricultural activities, while TN and DO are affected by urban domestic and industrial production. The COVID-19 pandemic has affected river water quality by impacting production and daily life. These findings provide a foundation for managing the water quality of Yellow River Basin.

河流水质通常受到景观格局和产业结构的影响，但COVID-19大流行的影响受到的关注较少。以甘肃省黄河干支流为研究区，分析水质指标与景观格局指数的相关性以及社会经济因素，解释2018 - 2021年水质差异的驱动因素，并调查新冠肺炎疫情对水质的影响。除洮河外，干支流水质均呈改善趋势；但渭河（TN为3.58 ~ 11.19 mg/L， NH4+-N为0.25 ~ 1.88 mg/L）、泾河（TN为2.66 ~ 8.18 mg/L， NH4+-N为0.25 ~ 1.69 mg/L）和庄浪河（TN为1.20 ~ 6.75 mg/L， NH4+-N为0.18 ~ 0.65 mg/L）月度氮源污染水平仍然较高，TN平均值甚至落在V类标准之内。水质与景观的聚集度和连通性呈正相关，但水污染风险随着景观破碎化和分散程度的增加而增加。NH4+-N、TP、CODMn和COD受农村家庭和农业活动的影响，TN和DO受城市家庭和工业生产的影响。2019冠状病毒病大流行通过影响生产和日常生活来影响河流水质。研究结果为黄河流域水质管理提供了依据。

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引用次数: 0

Concentrating esterquat-based surfactant wastewater via forward osmosis: A step toward reuse 正渗透浓缩酯基表面活性剂废水：迈向再利用的一步

IF 7.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-08-15 DOI: 10.1016/j.wri.2025.100316

Aleksandra Klimonda, Izabela Kowalska

This study investigates the potential of forward osmosis (FO) for concentrating industrial wastewater obtained from the rinsing stage of esterquat-based cationic surfactant production. The raw wastewater exhibited a high chemical oxygen demand (COD) of approximately 20,000 mg O₂/L and a significant concentration of cationic surfactants (CSs) from the esterquat group (∼2500 mg/L). The FO process with 1 M NaCl reduced wastewater volume by 50 %, resulting in a twofold increase in COD and CSs. An increase in the feed solution salinity (67–612 mg Cl⁻/L) confirmed the occurrence of reverse salt flux, while total organic carbon (TOC) in the draw solution at the end of the process reached ∼200 mg/L, indicating partial organic contaminants transfer through the membrane. These results demonstrate that FO is effective for concentrating wastewater and supports circular economy strategies by enabling water reuse and reducing freshwater consumption.

本研究探讨了正向渗透（FO）对酯基阳离子表面活性剂生产过程中漂洗阶段产生的工业废水的浓缩潜力。原水的化学需氧量（COD）约为20,000 mg O2/L，酯基阳离子表面活性剂（CSs）浓度显著（~ 2500 mg/L）。添加1 M NaCl的FO处理可使废水体积减少50%，COD和CSs增加2倍。进料液盐度的增加（67-612 mg Cl−/L）证实了反向盐通量的存在，而工艺结束时提取液中的总有机碳（TOC）达到~ 200 mg/L，表明部分有机污染物通过膜转移。这些结果表明，FO可以有效地集中废水，并通过实现水再利用和减少淡水消耗来支持循环经济战略。

引用次数: 0

Research and comparison of efficient electrochemical purification methods for bilge water using lead, aluminum, copper, and iron electrodes 铅、铝、铜、铁电极对舱底水高效电化学净化方法的研究与比较

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-06-28 DOI: 10.1016/j.wri.2025.100306

Chin-Ko Yeh , Hsiang-Cheng Hsu

This study targets the effectiveness of electrochemical technology in treating bilge water from ships. Bilge water is complex in composition, containing seawater, freshwater, hydraulic oil, fats, oils, heavy metals, and other pollutants, posing a potential threat to the marine environment. The International Maritime Organization (IMO) has strict regulations regarding the treatment and discharge of bilge water. The electrochemical treatment technology proposed in this study uses aluminum/copper electrodes, purifying the wastewater through four steps: electrochemical oxidation, reduction, coagulation, and flotation. Experimental results showed that this technology could effectively reduce the alkalinity by 75 %, lower the pH value to between 7 and 8, reduce nitrate by 78 %, and nearly completely remove free chlorine and copper concentrations within 30 min. However, the removal of sulfate was limited. Compared to traditional treatment methods, the aluminum/copper electrochemical technology offers low energy consumption, reduced chemical usage, and good environmental compatibility, aligning with the United Nations' Sustainable Development Goals 6 (SDGs 6), Sustainable Development Goals 12 (SDGs 12), and Sustainable Development Goals 14 (SDGs 14), making it a promising alternative for bilge water treatment.

研究了电化学技术在船舶舱底水处理中的应用效果。舱底水成分复杂，含有海水、淡水、液压油、油脂、油类、重金属等污染物，对海洋环境构成潜在威胁。国际海事组织（IMO）对舱底水的处理和排放有严格的规定。本研究提出的电化学处理技术采用铝/铜电极，通过电化学氧化、还原、混凝、浮选四个步骤对废水进行净化。实验结果表明，该工艺可有效降低75%的碱度，将pH值降至7 ~ 8之间，降低78%的硝酸盐，并在30 min内几乎完全去除游离氯和铜浓度，但硫酸盐的去除率有限。与传统处理方法相比，铝/铜电化学技术具有能耗低、化学品用量少、环境兼容性好等优点，符合联合国可持续发展目标6 （sdg 6）、可持续发展目标12 （sdg 12）和可持续发展目标14 (sdg 14)，是处理舱底水的理想选择。

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引用次数: 0

Sustainable-circular water resources management in the mining industry using system dynamics modeling 利用系统动力学建模的采矿业可持续循环水资源管理

IF 7.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-07-31 DOI: 10.1016/j.wri.2025.100313

Elahe Irandoost , Ahmad Ghorbanpour , Hadi Balouei Jamkhaneh , Peiman Ghasemi , Erfan Babaee Tirkolaee

Mining is seen as a water-consuming industry, whereas the number of mining industries increases, followed by the excessive consumption of groundwater. An efficient water management system, pursuing a global objective of sustainable development and circular solutions, is needed at the production process level. Hence, to separate economic development and growth from the excessive consumption of resources, the alternative Circular Economy (CE) model is recommended as a new paradigm of the economy for sustainable development. This study aims to design a dynamic model which allows the analysis of various scenarios in line with sustainable Water Consumption Management (WCM) in the mining industries, considering the components of CE. In this work, the water system of mining industries is modeled using the System Dynamics (SD) approach in a southern province of Iran, given the impact of components of the CE on water demand, industrial balance, and groundwater volume by 2041. Findings demonstrate that implementing three strategies of reduction, recovery and reuse in the mining industries of Bushehr Province through public policies encourages the use of water consumption reduction technology in the mining industry units, wherein greet growth in the number of active units, 90 % reduction in the stagnant units, 92 % reduction in water consumption per capita and 70 % reduction in the water demand of mining industries are observed. Therefore, compliance with CE principles in this industry can solve the main concerns of Water Resources Management (WRM), such as increasing water productivity, reducing water withdrawal from existing sources, and reducing per capita water consumption.

采矿业被认为是一个耗水的行业，而采矿业的数量增加，随之而来的是地下水的过度消耗。在生产过程一级需要一个有效的水管理系统，追求可持续发展和循环解决方案的全球目标。因此，为了将经济发展和增长与资源的过度消耗分开，建议将循环经济（CE）模式作为可持续发展经济的新范式。本研究旨在设计一个动态模型，考虑到可持续用水管理的组成部分，该模型可以分析采矿行业可持续用水管理（WCM）的各种情景。在这项工作中，使用系统动力学（SD）方法对伊朗南部省份的采矿业水系统进行建模，考虑到CE的组成部分对2041年的水需求、工业平衡和地下水量的影响。研究结果表明，通过公共政策在布什尔省采矿业实施减量化、回收和再利用三种战略，鼓励采矿业单位使用节水技术，其中，采矿业活跃单位数量增加了1倍，停滞单位减少了90%，人均用水量减少了92%，需水量减少了70%。因此，在这个行业遵守CE原则可以解决水资源管理（WRM）的主要问题，如提高水生产率，减少从现有水源取水，减少人均用水量。

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引用次数: 0

A novel chitosan sorbent enriched with nickel ions: An effective approach for eliminating excess phosphate(V) anions in water 新型壳聚糖富集镍离子吸附剂：去除水中多余磷酸(V)阴离子的有效方法

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-06-12 DOI: 10.1016/j.wri.2025.100301

Łukasz Wujcicki , Tomasz Mańdok , Dominika Paprota , Dawid Sapia , Gabriela Dudek , Klaudiusz Gołombek , Joanna Kluczka

Phosphorus is an essential nutrient for living beings. Unfortunately, high phosphate(V) levels can lead to eutrophication in aquatic ecosystems. One promising technique for removing phosphate(V) contamination is sorption, which uses various sorbents. In particular, chitosan, a natural polysaccharide, has gained special attention due to its excellent sorption properties, biocompatibility, and ease of modification. This study proposes a new sorbent, a chitosan-based hydrogel modified with nickel ions (Cs-Ni), for effectively sorbing phosphate(V) anions from both model and natural waters. The maximum sorption capacity of phosphates(V) by the Cs-Ni hydrogel calculated by the Langmuir model was 62.5 mg/g, which was much higher compared to the unmodified chitosan-based hydrogel. The phosphates(V) sorption rate by Cs-Ni hydrogel was best explained by the pseudo-second-order kinetic model, which established the time to reach equilibrium as 24 h. Phosphates(V) desorption to 95 % efficiency was achieved using a 0.1 M NaOH solution. Multi-cycle sorption and desorption studies showed that the Cs-Ni hydrogel can be reused at least five times without any loss of nickel(II) ions from the structure of the sorbent. Most coexisting anions in natural waters had a minor impact on phosphate(V) removal by the Cs-Ni hydrogel, with the exception of sulfate(VI), which reduced the phosphorus removal efficiency by ∼50 %. Modification of chitosan with nickel(II) significantly enhanced its properties for both physical and chemical sorption of phosphate(V) anions. The hydrogel beads’ design allows for easy solid-phase separation from the purified water, making the Cs-Ni hydrogel advantageous for removing phosphates(V) from real aqueous systems.

磷是生物必需的营养物质。不幸的是，高磷(V)水平会导致水生生态系统富营养化。一种很有前途的去除磷酸盐(V)污染的技术是吸附，它使用各种吸附剂。壳聚糖是一种天然多糖，因其优良的吸附性能、生物相容性和易于改性而受到人们的特别关注。本研究提出了一种新的吸附剂，一种基于壳聚糖的镍离子（Cs-Ni）改性水凝胶，可以有效地从模型和自然水中吸收磷酸盐(V)阴离子。Langmuir模型计算出Cs-Ni水凝胶对磷酸盐的最大吸附量(V)为62.5 mg/g，远高于未改性壳聚糖基水凝胶。Cs-Ni水凝胶对磷酸盐(V)的吸附速率最好用拟二级动力学模型来解释，该模型确定了达到平衡的时间为24 h。在0.1 M NaOH溶液中，磷酸盐(V)的解吸效率达到95%。多循环吸附和解吸研究表明，Cs-Ni水凝胶可以重复使用至少5次，而不会从吸附剂的结构中损失镍（II）离子。天然水中共存的大多数阴离子对Cs-Ni水凝胶去除磷酸盐(V)的影响较小，但硫酸盐（VI）除外，它使除磷效率降低了约50%。对壳聚糖进行镍（II）改性后，壳聚糖对磷酸(V)阴离子的物理吸附和化学吸附性能显著提高。水凝胶珠的设计使纯化水易于固相分离，使Cs-Ni水凝胶有利于从实际水系统中去除磷酸盐(V)。

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引用次数: 0

Two-step double-chambered wastewater electrolysis to recover separated fractions of heavy metals and phosphate 两步双室电解废水回收重金属和磷酸盐分离馏分

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-06-18 DOI: 10.1016/j.wri.2025.100305

Lena Hahn , João Marcos Monteiro , Ulrich Kunz , Michael Sievers

The separated recovery of heavy metals and phosphate through a two-step water electrolysis is investigated. The use of carbon-polymer composite cathode with non-sticking properties and a dimension-stable anode in two-chamber cells is investigated to treat original industrial wastewater from metal industry by minimal addition of salts to support process water recovery. The heavy metals and phosphates are precipitated as metal-hydroxides and magnesium/calcium-phosphates, respectively. For phosphate precipitation the addition of magnesium chloride, calcium oxide as well as a reverse osmosis (RO) concentrate of artificial water reservoir were investigated. The pH value in the first steps affects both the amount of heavy metals and phosphate precipitated and an optimal pH for the first step is found to increase the phosphate recovery at low heavy metal content. Moreover, the use of RO concentrate enables a chemical input free phosphate recovery.

研究了两步水电解分离回收重金属和磷酸盐的工艺。研究了在双室电池中使用具有不粘接性能的碳-聚合物复合阴极和尺寸稳定的阳极，通过少量添加盐来处理金属工业的原始工业废水，以支持工艺水的回收。重金属和磷酸盐分别以金属氢氧化物和镁/磷酸钙的形式沉淀。研究了在人工水库中加入氯化镁、氧化钙和反渗透（RO）浓缩液来沉淀磷酸盐。第一步的pH值既影响重金属的析出量，也影响磷酸盐的析出量，在重金属含量较低的情况下，第一步的最佳pH值可以提高磷酸盐的回收率。此外，使用反渗透浓缩物可以实现化学输入的无磷酸盐回收。

引用次数: 0

Assessing the environmental impact of wastewater leakage: A case study on grey water and carbon footprints in wastewater collection networks 污水泄漏的环境影响评估：以污水收集网络中水灰和碳足迹为例

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-06-10 DOI: 10.1016/j.wri.2025.100300

Keivan Arastou , Mohamadreza Najarzadegan , Mehrtash Eskandaripour

This study examines the dynamics of mixed industrial and municipal wastewater (MWW) flows in industrial and municipal settings from February 2023 to January 2024. During the study period, total freshwater consumption averaged 85,228 m³/month, with 78 % (66,269 m³/month) converted into MWW. Of this volume, 25 % (16,758 m³/month) was lost due to leakage in the wastewater collection network (WWCN), while the remaining 75 % (49,511 m³/month) reached the discharge stage. The analysis of pollutants indicated that COD was the predominant pollutant across all sampling points, with concentrations of 953.3 mg/L in MWW compared to 1.8 mg/L in freshwater, demonstrating significant contamination. The grey water footprint (GWF) assessment identified COD as the critical pollutant, with peak values reaching 1,260,468 m³/month for generated MWW and 316,449 m³/month for leakage MWW, followed by phosphate (PO₄) contributions. The carbon footprint (CF) assessment estimated that WWCN energy consumption led to emissions of 34,898 kg CO₂/month (0.53 kg-CO₂/m³ MWW). Leakage exacerbated environmental impacts by increasing pollution loads and wasting energy, as untreated MWW bypassed treatment processes. These findings highlight the urgency of mitigating leakage and optimizing MWW management to minimize environmental impacts. Targeted interventions can improve the sustainability of MWW infrastructure and enhance resource efficiency.

本研究考察了2023年2月至2024年1月在工业和城市环境中混合工业和城市污水（MWW）流动的动态。在研究期间，淡水总消耗量平均为85,228 m3/月，其中78% （66269 m3/月）转化为兆瓦。其中25%（16,758立方米/月）由于污水收集网络（WWCN）的泄漏而损失，而其余75%（49,511立方米/月）进入排放阶段。污染物分析表明，COD是所有采样点的主要污染物，MWW中的浓度为953.3 mg/L，而淡水中的浓度为1.8 mg/L，表明污染严重。灰水足迹（GWF）评价确定COD为关键污染物，产生MWW的峰值为1,260,468 m3/月，泄漏MWW的峰值为316,449 m3/月，其次是磷酸盐（PO4）的贡献。碳足迹（CF）评估估计WWCN能源消耗导致排放34,898 kg CO2/月（0.53 kg-CO2/m3 MWW）。由于未经处理的MWW绕过了处理过程，泄漏增加了污染负荷，浪费了能源，从而加剧了环境影响。这些发现强调了减少泄漏和优化MWW管理以最大限度地减少环境影响的紧迫性。有针对性的干预措施可以改善MWW基础设施的可持续性，提高资源效率。

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引用次数: 0

Degradation of polylactide microplastics in the marine environment under low temperature and in fine-grained sediments - a laboratory scale evaluation 聚乳酸微塑料在海洋环境中低温和细颗粒沉积物中的降解——实验室规模评估

IF 7.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-11-20 DOI: 10.1016/j.wri.2025.100331

Karolina Szewc , Bożena Graca , Maksymilian Plata-Gryl , Grzegorz Boczkaj

The degradation of microplastics (MPs) in marine environments, especially under low temperatures and in fine-grained sediments, remains poorly understood. In this study, laboratory experiments were conducted on MPs of polylactide (PLA), a bio-based and industrially compostable polymer, and polystyrene (PS), a conventional oil-based polymer, to investigate their degradation in marine water and sediments at low temperatures. After 3 months PLA incubation in marine water (6–8 °C), gel permeation chromatography/size exclusion chromatography (GPC/SEC) showed a 17 % reduction in molecular weight (M_n) and increased polydispersity index in samples under combined abiotic and biotic hydrolysis. Scanning electron microscopy indicated a local surface collapse of PLA. Degradation was inhibited in samples under abiotic hydrolysis alone. No molecular-level degradation occurred in samples buried in oxygen-deficient, fine-grained sediment. A limited (0.02–0.08 %) weight loss of PLA was observed across all experiments. Polystyrene microplastics showed no signs of degradation during the experiments. Our findings suggest that in bottom sediments, where temperatures are low and oxygen is scarce, PLA undergoes limited surface erosion rather than bulk degradation. This leads to long-term persistence and gradual reduction in particle size. Therefore, improperly managed PLA waste may contribute to micro- and nanoplastic pollution in deep-sea environments.

微塑料（MPs）在海洋环境中的降解，特别是在低温和细颗粒沉积物中的降解，仍然知之甚少。在本研究中，对聚乳酸（PLA）（一种生物基和工业可堆肥聚合物）和聚苯乙烯（PS）（一种传统的油基聚合物）的MPs进行了实验室实验，以研究它们在低温下在海水和沉积物中的降解情况。PLA在海水（6-8°C）中培养3个月后，凝胶渗透色谱/粒径排除色谱（GPC/SEC）显示，在非生物和生物联合水解下，样品的分子量（Mn）降低了17%，多分散性指数增加。扫描电镜显示PLA局部表面塌陷。仅在非生物水解条件下，样品的降解被抑制。埋在缺氧、细粒度沉积物中的样品没有发生分子水平的降解。所有实验均观察到PLA的有限失重（0.02 - 0.08%）。聚苯乙烯微塑料在实验中没有显示出降解的迹象。我们的研究结果表明，在温度低、氧气稀缺的底部沉积物中，聚乳酸只经历有限的表面侵蚀，而不是整体降解。这导致长期的持久性和逐渐减少的颗粒大小。因此，处理不当的聚乳酸废物可能会导致深海环境中的微塑料和纳米塑料污染。

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引用次数: 0

Evaluation of hydrocarbon and co-contaminants in groundwater and associated public health risks using electrical resistivity and hydrochemical data 利用电阻率和水化学数据评价地下水中的碳氢化合物和共污染物以及相关的公共健康风险

IF 7.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry

Pub Date : 2025-12-01 Epub Date: 2025-09-02 DOI: 10.1016/j.wri.2025.100319

Joseph Omeiza Alao , Bala Balarabe , Daniel A. Ayejoto , Fahad Abubakar , Oche J. Otorkpa , Stanley U. Eze

Hydrocarbon plays a vital role in national and global economic development. However, the environmental impact of hydrocarbon extraction and utilization remains a challenging phenomenon, which has recorded a far worse impact on the soil, groundwater, and public health. This study applied resistivity and hydrochemical data to provide information about the distribution of potential hydrocarbon contaminants (HCCs) and co-contaminants such as heavy metals (HMs) in groundwater near a refinery and the possible associated health risks for effective environmental management and public health protection. The concentrations of HCCs and variations in electrical resistivity values were examined. The regional aquifer vulnerability to the HCCS was evaluated. Based on the study's outcomes, HCCs occur in the overburdened topsoil at depths of 0.0 m–3.5 m, with electrical resistivity values varying between 15,000 Ωm and 60,000 Ωm. These values exceeded the known subsurface resistivity values of the region as a result of the presence of HCCs. Hydrochemical data records indicate high concentrations of HCCs in groundwater ranging from 0.342 mg/L – 0.572 mg/L. The level of total petroleum hydrocarbons (TPH) in groundwater from five hand-dug wells (HDWs): HDW 1 (0.4721), HDW 2 (0.4517), HDW 3 (highest at 0.5716), HDW 4 (0.4012), and HDW 5 (lowest at 0.3421), over the Directorate of Petroleum Resources (DPR). The aquifer of the region was polluted with HMs owing to infiltrated HCCs in different range, i.e., 0.792–1.692 mg/L for zinc, 0.909–1.711 for iron, 0.711–1.612 mg/L for lead, 0.333–0.717 mg/L for chromium, and 0.038–0.081 mg/L for cadmium, and pH ranged from 5.3 to 7.1 and electrical conductivity (EC) from 0.524 to 0.777 mS/cm, corresponding to the elevated electrical resistivity contrast caused by HCCs. Data analysis provides a comprehensive understanding of the environmental impacts of hydrocarbons and HMs, demonstrating how petrochemical industrial activities infiltrate into groundwater systems, exacerbating environmental degradation and posing serious health threats to human beings.

碳氢化合物在国家和全球经济发展中起着至关重要的作用。然而，碳氢化合物的开采和利用对环境的影响仍然是一个具有挑战性的现象，它对土壤、地下水和公众健康的影响要严重得多。本研究利用电阻率和水化学数据，提供炼油厂附近地下水中潜在碳氢化合物污染物（HCCs）和重金属（HMs）等共污染物的分布信息，以及可能存在的相关健康风险，以便进行有效的环境管理和公众健康保护。检测了HCCs的浓度和电阻率值的变化。评价了区域含水层对HCCS的脆弱性。根据研究结果，HCCs出现在深度为0.0 m - 3.5 m的超载表土中，其电阻率值在15,000 Ωm和60,000 Ωm之间变化。由于HCCs的存在，这些值超过了该地区已知的地下电阻率值。水化学数据记录表明，地下水中的HCCs浓度在0.342 mg/L - 0.572 mg/L之间。5口手挖井（HDW）的地下水总石油烃（TPH）水平：HDW 1（0.4721）、HDW 2（0.4517）、HDW 3（最高为0.5716）、HDW 4（0.4012）和HDW 5（最低为0.3421），高于石油资源管理局（DPR）。该地区含水层受到不同范围hcc的污染，锌为0.792 ~ 1.692 mg/L，铁为0.909 ~ 1.711 mg/L，铅为0.711 ~ 1.612 mg/L，铬为0.333 ~ 0.717 mg/L，镉为0.038 ~ 0.081 mg/L， pH值为5.3 ~ 7.1，电导率（EC）为0.524 ~ 0.777 mS/cm，与hcc引起的电阻率对比升高相对应。数据分析提供了对碳氢化合物和HMs的环境影响的全面了解，展示了石化工业活动如何渗入地下水系统，加剧了环境退化并对人类健康构成严重威胁。

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引用次数: 0