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Investigation of biochemical and antioxidant system responses of sugarcane CP48-103 under drought stress induced by polyethylene glycol 聚乙二醇诱导干旱胁迫下甘蔗 CP48-103 的生化和抗氧化系统响应研究
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-05981-2
K. Bavai, M. Kalahi, Z. Baghaeifar, A. Goldson-Barnaby

Sugarcane is an important crop globally as it is a primary source of sugar and is used in the production of a wide range of products such as food, biofuels, and renewable materials. In Iran, sugarcane is significant as it contributes to the country’s sugar production and supports its agricultural industry, providing employment and economic value to the region. In this study, the physiological changes of sugarcane plants under drought stress were investigated. After callus formation and transfer of the plants to a shoot culture medium, drought stress was applied at four levels: control, 0.4, 0.8, and 1.2 mM/L of polyethylene glycol in the MS culture medium. Changes in morphological characteristics, as well as biochemical properties including pigments, antioxidant enzyme activity, and non-enzymatic antioxidants of sugarcane plants under drought stress, were measured. Drought stress led to a decrease of about 34% in growth parameters and phenolic content increased by 1.43 times of sugarcane plants, proportional to the concentration of polyethylene glycol in the culture medium, while osmolytes and antioxidant enzymes such as catalase, superoxide dismutase, peroxidase, ascorbate peroxidase, glutathione reductase, and glutathione peroxidase, showed higher levels, indicating that one of their roles in sugarcane is responding to drought stress and neutralization of reactive oxygen species. These insights can inform the creation of drought-resistant crop varieties, supporting sustainable agriculture in regions prone to water scarcity. Moreover, they could pave the way for advancements in water conservation practices and help mitigate the impact of climate change on farming.

甘蔗是全球重要的农作物,因为它是糖的主要来源,可用于生产食品、生物燃料和可再生材料等多种产品。在伊朗,甘蔗具有重要意义,因为它有助于该国的蔗糖生产,支持其农业产业,为该地区提供就业和经济价值。本研究调查了甘蔗植物在干旱胁迫下的生理变化。在胼胝体形成并将植株转移到芽培养基后,在 MS 培养基中施加四种水平的干旱胁迫:对照、0.4、0.8 和 1.2 mM/L 的聚乙二醇。测量了干旱胁迫下甘蔗植株形态特征以及生化特性(包括色素、抗氧化酶活性和非酶抗氧化剂)的变化。干旱胁迫导致甘蔗植株的生长参数下降了约 34%,酚含量增加了 1.43 倍,与培养基中聚乙二醇的浓度成正比,而渗透溶质和抗氧化酶(如过氧化氢酶、超氧化物歧化酶、过氧化物酶、抗坏血酸过氧化物酶、谷胱甘肽还原酶和谷胱甘肽过氧化物酶)的含量较高,表明它们在甘蔗中的作用之一是应对干旱胁迫和中和活性氧。这些发现可以为培育抗旱作物品种提供信息,从而为缺水地区的可持续农业提供支持。此外,它们还能为节水实践的进步铺平道路,并有助于减轻气候变化对农业的影响。
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引用次数: 0
Innovations in tannery wastewater management: a review of zero liquid discharge technology 制革废水管理创新:零液体排放技术综述
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-05986-x
A. Pundir, M. S. Thakur, B. Goel, Radha, A. Kumar, S. Prakash, M. Thakur, M. Kumar

The tanning industry, a significant contributor to global leather production, faces critical challenges in wastewater management due to the hazardous pollutants generated during processing. Zero liquid discharge (ZLD) systems present a sustainable solution by efficiently treating and reusing wastewater while minimizing environmental impact. This study aims to explore the successful implementation of ZLD in the tannery industry, considering its economic and environmental benefits. Through a comprehensive review of literature and case studies, this research assesses the factors contributing to ZLD success, potential barriers to widespread adoption, and future advancements in technology. Methodologies include analyzing existing ZLD implementations, evaluating cost analyses, and investigating potential advancements in ZLD technologies. Results demonstrate that while ZLD offers significant advantages in water conservation, resource recovery, and environmental protection, challenges such as high installation costs and technical complexities hinder widespread adoption. Addressing these challenges requires concerted efforts from stakeholders, including tannery owners, regulatory bodies, and technology providers. Future directions suggest the need for ongoing research and development to enhance ZLD efficiency and cost-effectiveness. By embracing ZLD systems, tanneries can achieve sustainable wastewater management, conserve water resources, and meet environmental standards, thereby advancing towards an environmentally conscious and socially responsible business approach.

制革业是全球皮革生产的重要贡献者,由于加工过程中会产生有害污染物,该行业在废水管理方面面临严峻挑战。液体零排放(ZLD)系统通过有效处理和再利用废水,同时最大限度地减少对环境的影响,提供了一种可持续的解决方案。本研究旨在探讨在制革行业成功实施 ZLD 的情况,同时考虑其经济和环境效益。通过对文献和案例研究的全面回顾,本研究评估了促进 ZLD 成功的因素、广泛采用的潜在障碍以及未来的技术进步。研究方法包括分析现有的 ZLD 实施情况、评估成本分析以及调查 ZLD 技术的潜在进步。研究结果表明,虽然 ZLD 在节水、资源回收和环境保护方面具有显著优势,但高昂的安装成本和技术复杂性等挑战阻碍了其广泛应用。应对这些挑战需要包括制革厂主、监管机构和技术提供商在内的利益相关者共同努力。未来的发展方向表明,需要不断进行研究和开发,以提高 ZLD 的效率和成本效益。通过采用 ZLD 系统,制革厂可以实现可持续的废水管理,节约水资源,并达到环保标准,从而向具有环保意识和社会责任感的经营方式迈进。
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引用次数: 0
Fixed-bed adsorption for industrial wastewater purification: An in-depth review 用于工业废水净化的固定床吸附技术:深入评述
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-06034-4
Prabu Rajandran, Nasratun Masngut, Nor Hasmaliana Abdul Manas, Nur Izyan Wan Azelee, Siti Fatimah Zaharah Mohd Fuzi, Mohamad Abd Hadi Bunyamin

The increasing discharge of industrial wastewater contaminated with hazardous pollutants requires innovative and efficient treatment technologies. This review addresses the potential of fixed-bed adsorption systems for the effective removal of a wide spectrum of contaminants from industrial effluent. It explains the basic principles, characteristics and mechanisms of fixed-bed adsorption systems and examines important factors affecting their performance. Through a comparative analysis of different adsorption models, the paper provides insights into the efficiency and applicability of these models in assessing the characteristics of adsorption system using breakthrough curves. The findings advocate for policy support to integrate fixed-bed adsorption technologies into existing wastewater management systems to improve environmental protection and public health.

受有害污染物污染的工业废水排放量不断增加,这就需要创新、高效的处理技术。本综述探讨了固定床吸附系统有效去除工业废水中各种污染物的潜力。它解释了固定床吸附系统的基本原理、特点和机制,并研究了影响其性能的重要因素。通过对不同吸附模型的比较分析,论文深入探讨了这些模型在利用突破曲线评估吸附系统特性时的效率和适用性。研究结果主张提供政策支持,将固定床吸附技术纳入现有的废水管理系统,以改善环境保护和公众健康。
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引用次数: 0
Effect of micelles-forming surfactant on performance of anaerobic digestion of synthetic municipal wastewater 形成胶束的表面活性剂对合成城市污水厌氧消化性能的影响
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-06025-5
Z. Akbari, T. Tavallaiee, R. Ghiassi

Several papers have been published in the literature about the effect of surfactants on anaerobic digestion process and results have shown that surfactants had contradictory effect in different concentrations. To understand the reason of this contradictory effect, the surfactant behavior was studied during the anaerobic digestion process in this research. Firstly, laboratory-scale experiments were conducted using 200 cc reactors at mesophilic temperature to determine the optimum inoculum-substrate ratio and several parameters were measured such as chemical oxygen demand, total solids, volatile solids, pH, dissolved oxygen, electrical conductivity, total dissolved solids and alkalinity. Results have shown that optimum inoculum-substrate ratio was four. In the second part of this research, batch experiments were conducted with four Sodium Dodecyl Benzene Sulfonate concentrations namely 0, 100, 200, 400 under mesophilic condition lasted for 50 days. It was observed that a fundamental change in anaerobic digestion occurred at the surfactant concentration of 400 ppm in such a way that surfactant played the role of an obstacle in the anaerobic digestion. To study the effect of surfactant concentration on anaerobic digestion, electrical conductivity and turbidity of tab water and synthetic wastewater were plotted versus surfactant concentration. Results of these graphs showed that electrical conductivity of synthetic wastewater was raised sharply after critical micelle concentration unlike tab water due to the interaction between charged species in synthetic wastewater with formed micelles. In addition, at concentrations higher than 400 ppm, the number of produced micelles increased exponentially in synthetic wastewater. The inhibition of growth rate of microorganism could be attributing to the micelle-forming surfactant which induced curvature stress in cell membranes and led to disordering and then cell lysis.

已有多篇关于表面活性剂对厌氧消化过程的影响的文献发表,结果表明,表面活性剂在不同浓度下具有相互矛盾的效果。为了了解这种矛盾效应的原因,本研究对表面活性剂在厌氧消化过程中的行为进行了研究。首先,在中嗜酸温度下使用 200 毫升反应器进行了实验室规模的实验,以确定最佳接种物-底物比例,并测量了化学需氧量、总固体、挥发性固体、pH 值、溶解氧、电导率、总溶解固体和碱度等参数。结果表明,最佳接种物-基质比为 4。研究的第二部分是在嗜中性条件下,用 0、100、200、400 四种浓度的十二烷基苯磺酸钠进行了为期 50 天的批量实验。结果表明,表面活性剂浓度为 400 ppm 时,厌氧消化发生了根本变化,表面活性剂在厌氧消化过程中起到了阻碍作用。为了研究表面活性剂浓度对厌氧消化的影响,绘制了标签水和合成废水的电导率和浊度与表面活性剂浓度的关系图。这些图表的结果表明,由于合成废水中的带电物种与形成的胶束相互作用,合成废水的电导率在临界胶束浓度之后急剧上升,这一点与标签水不同。此外,当浓度高于 400 ppm 时,合成废水中产生的胶束数量呈指数增长。抑制微生物生长率的原因可能是形成胶束的表面活性剂引起了细胞膜的曲率应力,导致细胞膜紊乱,进而导致细胞溶解。
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引用次数: 0
Alkali-activated materials containing mine tailings and zeolite for seepage water treatment in a closed nickel mine 含有矿山尾矿和沸石的碱活性材料用于封闭镍矿的渗水处理
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-06002-y
J. Laukkanen, H. Runtti, I. Lancellotti, T. Luukkonen, C. Leonelli, U. Lassi

In the present study, alkali-activated materials were assessed as adsorbents for mine water treatment. The composition of alkali-activated materials, involving mixtures of metakaolin, blast-furnace slag, mine tailings, and zeolite, was optimized based on their leaching behavior and adsorption performance. The most effective adsorbent contained solely blast furnace slag as an aluminosilicate precursor and was selected for a pilot-scale study at a closed nickel mine in Finland. In the pilot, seepage water from a gangue area with an influent flow rate of 0.5 m3/d was treated using a permeable reactive barrier set-up containing 10 kg of slag-based adsorbent prepared by a granulation-alkali activation process. During a one-week experiment, the adsorbent granules were capable of effectively uptaking Ni, Fe, and Mn from the seepage water; the removal percentages of Ni, Fe, and Mn were 82.4%, 81.6%, and 82.5%, respectively. The results indicated the feasibility of blast furnace slag-based adsorbents for toxic element removal in a potentially sustainable approach.

本研究将碱活性材料作为矿井水处理的吸附剂进行了评估。碱活性材料包括偏高岭土、高炉矿渣、矿山尾矿和沸石的混合物,根据其浸出行为和吸附性能对其成分进行了优化。最有效的吸附剂仅含有作为铝硅酸盐前体的高炉矿渣,并被选中在芬兰的一个封闭镍矿进行试验性研究。在试验过程中,使用了一种可渗透的反应屏障装置来处理矸石区的渗漏水,该装置的进水流量为 0.5 立方米/天,其中含有 10 千克通过造粒-碱活化工艺制备的矿渣吸附剂。在为期一周的实验中,吸附剂颗粒能够有效吸附渗出水中的镍、铁和锰;镍、铁和锰的去除率分别为 82.4%、81.6% 和 82.5%。研究结果表明,高炉矿渣吸附剂以潜在的可持续方式去除有毒元素是可行的。
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引用次数: 0
Ammonia inhibition in anaerobic digestion of organic waste: a review 有机废物厌氧消化中的氨抑制:综述
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-06029-1
J. Yang, J. Zhang, X. Du, T. Gao, Z. Cheng, W. Fu, S. Wang

Anaerobic digestion (AD) has become the technology of choice for organic waste treatment as an environmentally beneficial and sustainable waste treatment technology. However, the nitrogen content of these organic waste streams is generally high. Ammonia is produced in the biodegradation of nitrogenous organic matter. Low concentrations of ammonia favour AD, but high concentrations can lead to digestive system failure. To address the issue of ammonia inhibition and ensure the stability of the digestive system, numerous physical, chemical, and biologicalmethods aimed at controlling ammonia levels and/or strengthening the biological processes have been proposedand developed. Literature evidence suggests that differences in AD reaction conditions and microbial sources result in different tolerances of the digestive system to ammonia and nitrogen. This paper summarises and compares the inhibitory effects of ammonia nitrogen under different conditions and the existing regulatory measures to alleviate ammonia nitrogen inhibition. In addition, since the core of the digestive system is microorganisms, this paper explains the mechanism of ammonia stress especially at the microbial level, and in this way, it explores the future direction of research using biofortification. This review provides a theoretical reference for solving the problem of ammonia nitrogen inhibition.

厌氧消化(AD)作为一种有益于环境和可持续发展的废物处理技术,已成为有机废物处理的首选技术。然而,这些有机废物流中的氮含量普遍较高。含氮有机物在生物降解过程中会产生氨。低浓度的氨有利于厌氧消化,但高浓度的氨会导致消化系统失灵。为了解决氨抑制问题并确保消化系统的稳定性,人们提出并开发了许多物理、化学和生物方法,旨在控制氨含量和/或加强生物过程。文献证据表明,由于厌氧消化反应条件和微生物来源的不同,消化系统对氨氮的耐受性也不同。本文总结并比较了不同条件下氨氮的抑制作用以及现有的缓解氨氮抑制作用的监管措施。此外,由于消化系统的核心是微生物,本文特别从微生物层面解释了氨氮胁迫的机理,并以此探讨了利用生物强化的未来研究方向。本综述为解决氨氮抑制问题提供了理论参考。
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引用次数: 0
Performance evaluation of microbial fuel cells for bioelectricity generation: influence of potential scan-rate and real-time external load 用于生物发电的微生物燃料电池的性能评估:电位扫描速率和实时外部负载的影响
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-05989-8
I. Meshack Simeon, A. Gbabo, R. Freitag

The electrochemical performance of microbial fuel cells is conventionally assessed through linear sweep voltammetry at predefined potential scan rates. Nevertheless, this approach frequently falls short in representing the long-term behavior of microbial fuel cells under actual external loads, highlighting the need for a standardized evaluation method incorporating both linear sweep voltammetry and external loads. To address this gap, this study evaluates the performance of single-chamber microbial fuel cells under different loads and scan rates. The MFCs were tested with external loads of 1200, 470, and 270 Ω, derived from maximum power points of polarization sweeps at scan rates of 0.1, 0.5, and 1 mV/s at two operational phases. Power estimates at these scan rates were 61.96, 87.88, and 166.68 mW/m2 at current densities of 116.5, 229.6, and 403 mA/m2, respectively. In the initial two hours, average power densities with 1200, 470, and 270 Ω were 73 ± 16.7, 36.3 ± 42, and 88.5 ± 120.1 mW/m2, respectively. Over the long term, the fuel cells under constant loading with resistance estimated at 0.1 mV/s showed average power 73.7% and 89.1% higher than those with resistances estimated at 0.5 mV/s and 1 mV/s, respectively, indicating that higher scan rates lead to overestimation of power. Although initially underestimated, the 0.1 mV/s scan rate more accurately reflected the true long-term performance of the fuel cells. This study emphasizes the importance of using appropriate scan rates for linear sweep voltammetry to obtain realistic long-term performance estimates of microbial fuel cells under real-time loads.

微生物燃料电池的电化学性能通常通过预定电位扫描速率下的线性扫描伏安法进行评估。然而,这种方法往往无法反映微生物燃料电池在实际外部负载下的长期行为,因此需要一种同时包含线性扫描伏安法和外部负载的标准化评估方法。为了弥补这一不足,本研究评估了单室微生物燃料电池在不同负载和扫描速率下的性能。MFC 在 1200、470 和 270 Ω 的外部负载下进行了测试,这些负载是在两个工作阶段以 0.1、0.5 和 1 mV/s 的扫描速率进行极化扫描的最大功率点得出的。这些扫描速率下的功率估计值分别为 61.96、87.88 和 166.68 mW/m2,电流密度分别为 116.5、229.6 和 403 mA/m2。在最初的两个小时内,1200、470 和 270 Ω 的平均功率密度分别为 73 ± 16.7、36.3 ± 42 和 88.5 ± 120.1 mW/m2。在长期恒定负载条件下,电阻估计值为 0.1 mV/s 的燃料电池的平均功率比电阻估计值为 0.5 mV/s 和 1 mV/s 的燃料电池分别高出 73.7% 和 89.1%,这表明较高的扫描速率会导致功率被高估。虽然最初估计过低,但 0.1 mV/s 扫描速率更准确地反映了燃料电池的真实长期性能。这项研究强调了线性扫描伏安法使用适当扫描速率的重要性,以便在实时负载下获得微生物燃料电池真实的长期性能估计值。
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引用次数: 0
Immobilization TiO2 nanoparticles into alginate/PVP hydrogel beads for photocatalyst: effective antibiotic removal, superior recovery and reuse ability 将 TiO2 纳米粒子固定到海藻酸盐/PVP 水凝胶珠中用于光催化剂:有效去除抗生素,卓越的回收和再利用能力
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-09 DOI: 10.1007/s13762-024-06035-3
C. H. Nguyen, T. Q. Lai, T. T. V. Tran

TiO2 nanoparticle-loaded hydrogel bead material was prepared by the sol–gel method of alginate cross-linked in CaCl2. TiO2 hydrogel bead formulations were based on two methods: (1) sodium alginate mixed with polyvinylpyrrolidone (AP), together with nano TiO2 powder (TiO2–AP1), and (2) AP hydrogel bead soaked in solution of nano TiO2 and CaCl2 (TiO2–AP2). The synthesized materials were characterized using X-ray diffraction, Fourier transform infrared spectrometer and field-emission scanning electron microscope. The photocatalytic performance of the synthesized materials was evaluated on the removal efficiency of oxytetracycline (OTC) and enrofloxacin (EFX) contained in an aqueous solution under ultraviolet (UV) light irradiation. TiO2–AP1 beads, prepared using the first method, exhibited superior performance compared to TiO2–AP2 beads. The porous structure of TiO2–AP1 hydrogel beads effectively immobilized and dispersed TiO2 particles, resulting in enhanced photocatalytic activity and stability. The best removal efficiency for OTC and EFX using TiO2–AP1–0.4 within 240 min under UV light reached 89.5% and 82.9%, respectively. Although the photocatalytic activity of TiO2–AP1 beads was slightly lower than that of TiO2–P25, their separation and recovery ability from aqueous solutions were significantly better. TiO2–AP1–0.4 maintained nearly unchanged photocatalytic activity after six degradation cycles (reduced by only about 3–4%).

Graphical abstract

采用溶胶-凝胶法制备了在 CaCl2 中交联的海藻酸盐负载纳米 TiO2 的水凝胶珠材料。TiO2 水凝胶珠的制备方法有两种:(1) 将海藻酸钠与聚乙烯吡咯烷酮(AP)混合,再加入纳米 TiO2 粉末(TiO2-AP1);(2) 将 AP 水凝胶珠浸泡在纳米 TiO2 和 CaCl2 溶液中(TiO2-AP2)。利用 X 射线衍射、傅立叶变换红外光谱仪和场发射扫描电子显微镜对合成材料进行了表征。在紫外线(UV)照射下,对水溶液中含有的土霉素(OTC)和恩诺沙星(EFX)的去除率评估了合成材料的光催化性能。与 TiO2-AP2 珠子相比,采用第一种方法制备的 TiO2-AP1 珠子表现出更优越的性能。TiO2-AP1 水凝胶珠的多孔结构有效地固定和分散了 TiO2 粒子,从而提高了光催化活性和稳定性。在紫外光下 240 分钟内,TiO2-AP1-0.4 对 OTC 和 EFX 的最佳去除率分别达到 89.5% 和 82.9%。虽然 TiO2-AP1 珠的光催化活性略低于 TiO2-P25,但其从水溶液中的分离和回收能力却明显更强。TiO2-AP1-0.4 的光催化活性在六个降解周期后几乎保持不变(仅降低约 3-4%)。
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引用次数: 0
Optimization of pre-oxidation enhanced coagulation for micro-polluted water treatment by response surface method 用响应面法优化微污染水处理中的预氧化强化混凝法
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-08 DOI: 10.1007/s13762-024-05948-3
R. Zhou, M. Zhang

Taking the natural water in Anhui Polytechnic University as the research object, the removal of micro-pollutants in water body by KMnO4 pre-oxidation enhanced polyaluminium chloride (PAC) coagulation process was studied. Firstly, the ability of different experimental schemes to remove turbidity, TP (Total Phosphorus) and UV254 was investigated to determine the pre-oxidation scheme. Then, on the basis of the selected pre-oxidation scheme, the effects of the dosage of KMnO4, dosage of PAC, pre-oxidation time and pH on the removal of pollutants were investigated. Taking removal rate of turbidity, UV254 and TP as the response values, the response surface method (RSM) was used to investigate the independent and interactive effects of the dosage of KMnO4 (A), PAC dosage (B) and pre-oxidation time (C). The technological parameters of KMnO4 pre-oxidation enhanced coagulation treatment of micro-polluted water were optimized. The results showed that adding KMnO4 for 5 min followed by adding PAC had the best treatment effect. The influence order is as follows: turbidity (B > A > C), UV254 (B > C > A), TP (A > B > C). The optimal technology parameters predicted by the model are as follows: A is 0.886 mg/L, B is 47.498 mg/L, and C is 13.1 min. Under these conditions, the best removal rates of turbidity, TP and UV254 were 92.43%, 86.25% and 40.6%, respectively, and the validated values were 92.51%, 88.67% and 41.32%, respectively. The deviation values from the model prediction are 0.07%, 2.42% and 0.72%.

以安徽工业大学自然水体为研究对象,研究了 KMnO4 预氧化强化聚氯化铝(PAC)混凝工艺对水体中微污染物的去除效果。首先,研究了不同实验方案去除浊度、TP(总磷)和 UV254 的能力,以确定预氧化方案。然后,在选定的预氧化方案基础上,研究了 KMnO4 的用量、PAC 的用量、预氧化时间和 pH 值对去除污染物的影响。以浊度、UV254 和 TP 的去除率为响应值,采用响应面法(RSM)研究 KMnO4 投加量(A)、PAC 投加量(B)和预氧化时间(C)的独立效应和交互效应。对 KMnO4 预氧化强化混凝处理微污染水的技术参数进行了优化。结果表明,投加 KMnO4 5 分钟后再投加 PAC 的处理效果最好。影响顺序为:浊度(B > A > C)、UV254(B > C > A)、TP(A > B > C)。模型预测的最佳技术参数如下:A 为 0.886 mg/L,B 为 47.498 mg/L,C 为 13.1 min。在此条件下,浊度、TP 和 UV254 的最佳去除率分别为 92.43%、86.25% 和 40.6%,验证值分别为 92.51%、88.67% 和 41.32%。与模型预测值的偏差分别为 0.07%、2.42% 和 0.72%。
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引用次数: 0
Perchlorate in antarctica, origin, effects, treatments, environmental fate, and astrobiological perspectives: a review 南极洲的高氯酸盐、起源、影响、处理方法、环境归宿和天体生物学视角:综述
IF 3.1 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2024-09-08 DOI: 10.1007/s13762-024-06004-w
R. Acevedo-Barrios, D. A. Puentes Martínez, I. O. Hernández Rocha, C. Rubiano-Labrador, A. C. De la Parra-Guerra, L. Carranza-López, A. Monroy-Licht, M. A. Leal, D. Tovar

Perchlorate (ClO4), which is a powerful endocrine disruptor affecting iodine fixation in the thyroid gland in humans and in biota, is a pollutant of natural and anthropogenic origin. For this reason, this pollutant must be eliminated from the ecosystems. It has been found in extreme environments such as Antarctica. ClO4 reduction can be achieved with physicochemical treatments in small concentrations and through bacterial degradation. This is a cost-effective method, easy to implement, which makes it a viable method for the removal of perchlorate contamination in ecosystems. This review provides an updated discussion of reducing perchlorate contamination; that includes different perspectives of investigations related to its origin, use, effects on living beings; as well as the technologies used to eliminate this pollutant from the environment; its environmental fate in strategic ecosystems such as Antarctica in particular and astrobiological perspectives.

高氯酸盐(ClO4-)是一种强烈的内分泌干扰物,会影响人类甲状腺和生物群的碘固定,是一种源自自然和人为的污染物。因此,必须从生态系统中消除这种污染物。在南极洲等极端环境中已经发现了这种物质。可以通过物理化学处理和细菌降解来减少小浓度的 ClO4。这种方法成本效益高,易于实施,是消除生态系统中高氯酸盐污染的可行方法。本综述对减少高氯酸盐污染进行了最新讨论,包括从不同角度研究高氯酸盐的来源、使用、对生物的影响,以及用于消除环境中这种污染物的技术;高氯酸盐在战略生态系统(特别是南极洲)中的环境归宿和天体生物学观点。
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引用次数: 0
期刊
International Journal of Environmental Science and Technology
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