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Assessment of groundwater vulnerability to pollution in an Arid environment 干旱环境下地下水污染脆弱性评价
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-05-29 DOI: 10.24425/aep.2023.145896
they have not consistently outperformed the other approaches, frequently because there is not enough information available to mathematically define the processes. To develop statistical correlations between the identified pollution, environmental variables, and land use for vulnerability assessment, statistical modeling methodologies, on the other hand, call for the use of surrogate observations. Therefore, the results of this method can only be used in areas where data is collected and that have similar characteristics that are correlated with the risk of groundwater pollution (Sarkar & Pal, 2021; Chakraborty et al. 2022). The
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引用次数: 0
Possibilities of using ash from thermal treatment of municipal solid waste in hardening slurries 城市生活垃圾热处理灰用于硬化浆料的可能性
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-05-29 DOI: 10.24425/aep.2023.145899
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引用次数: 0
The influence of chlorine substitution on the adsorption of chlorophenols on HDTMA-modified halloysite in aqueous solutions 氯取代对hdtma改性高岭土在水溶液中吸附氯酚的影响
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-05-29 DOI: 10.24425/aep.2023.145898
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引用次数: 0
Mercury content in refuse-derived fuels 垃圾衍生燃料中的汞含量
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/122304
W. Hryb, P. Matyasik
is a non--pro fi t association, founded in 2001 by European companies producing recovered fuels. ERFO was established to develop the concept of Solid Recovered Fuel (SRF). SRFs are solid fuels prepared from non-hazardous waste to be utilized for energy recovery in incineration or co-incineration plants and meeting the classi fi cation and speci fi cation requirements laid down in the EN15359 European standard. ERFO’s main aim is to promote the production and use of recovered fuels, and especially SRF, in Europe. To that aim, ERFO supports standardization of SRF and participates in research projects. Abstract: The paper presents the results of testing the mercury content in fuels derived from different types of waste. Legal and technical issues related to preventing mercury from getting into the environment are taken into account with respect to refuse-derived fuels used in cement plants. The mercury content in refuse-derived fuels is usually smaller compared to conventional fossil fuels such as coal. For this reason, the requirement imposed on the fuel suppliers that it must not exceed the limit of 0.3 ppm (in dry matter (DM)) seems over-restrictive and unjusti fi ed. The paper presents the sources of mercury contamination of waste with attention drawn to the signi fi cance of selective waste collection and the need to educate the public in this area. Presented are results of the testing of the mercury content in waste types characterized by a great variation of the parameter depending on the origin of the waste combustible
是一个非营利性协会,由生产再生燃料的欧洲公司于2001年成立。ERFO的成立是为了发展固体回收燃料(SRF)的概念。srf是由无害废物制备的固体燃料,用于焚烧或共焚烧厂的能量回收,符合EN15359欧洲标准中规定的分类和规格要求。ERFO的主要目标是促进欧洲回收燃料的生产和使用,特别是SRF。为此,ERFO支持SRF的标准化并参与研究项目。摘要:本文介绍了不同类型废弃物燃料中汞含量的检测结果。就水泥厂使用的垃圾衍生燃料而言,考虑到与防止汞进入环境有关的法律和技术问题。与煤炭等传统化石燃料相比,垃圾衍生燃料中的汞含量通常较低。因此,对燃料供应商施加的不得超过0.3 ppm(干物质)限制的要求似乎过于严格和不合理。本文介绍了废物中汞污染的来源,并注意到选择性废物收集的重要性以及在这方面教育公众的必要性。本文介绍了对各种废物中汞含量的测试结果,这些废物的参数根据可燃废物的来源而有很大变化
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引用次数: 4
A study on aerobic lipid substrate elimination by microbial consortium 微生物联合体消除好氧脂质底物的研究
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2020.134539
Witold Nocoń, Anna Węgrzyn, Mieczysław Metzger
: The purpose of this study was to validate the applicability of specialized microbial consortium for the degradation of lipids in wastewater. An experimental model of the process is proposed that enables prediction of the required batch length. This model can be used for supervision of the process and to control cycles of the batch reactor. The study involved 4 reactors with microbial consortium obtained by inoculation from a commercially available biopreparate. Each reactor was fed a diff erent load of lipid containing substrate. The biodiversity, settling characteristics and COD reductions were measured. The biodiversity of the microbial consortium changed within a range of ±15% depending on lipids concentration, as shown by the Shannon index and increasing amount of β-proteobacteria. Higher concentrations of lipids increased the biodiversity suggesting higher growth of microorganisms capable of utilizing lipids as energy and carbon source by producing lipid hydrolyzing enzymes. High lipid concentrations degrade the settling capabilities of the biomass. Higher lipid concentrations (0.5–2.0 [g
本研究的目的是验证专门的微生物联合体在降解废水中脂质的适用性。提出了该工艺的实验模型,可以预测所需的批长度。该模型可用于间歇反应器的过程监督和循环控制。该研究涉及4个反应器,通过接种从市售生物制剂中获得的微生物联合体。每个反应器喂入不同负荷的含脂底物。测定了生物多样性、沉降特性和COD减少量。微生物群落的生物多样性随脂质浓度的变化在±15%的范围内变化,如香农指数和β-变形菌数量的增加所示。较高的脂质浓度增加了生物多样性,表明能够通过产生脂质水解酶来利用脂质作为能量和碳源的微生物的生长速度更快。高脂质浓度降低了生物质的沉降能力。较高的脂质浓度(0.5-2.0 [g])
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引用次数: 1
Comparative analysis of selected water disinfection technologies with the use of life cycle assessment 用水消毒技术与生命周期评价的比较分析
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2019.128635
Artur Jachimowski, T. Nitkiewicz
: The objective of the paper is to use life cycle assessment to compare environmental impact of different technologies used in the process of water disinfection. Two scenarios are developed for water disinfection life cycle at ZUW Raba water treatment plant: (1) historical, in which gaseous chlorine is used as a disinfectant and (2) actual, in which UV radiation and electrolytically generated sodium hypochlorite are used for that purpose. Primary data is supplemented with ecoinvent 3 database records. Environmental impact is assessed by IMPACT2002+ method and its midpoint and endpoint indicators that are calculated with the use of SimaPro 8.4 software. The focus of the assessment is on selected life cycle phases: disinfection process itself and the water distribution process that follows. The assessment uses the data on fl ows and emissions streams as observed in the Raba plant. As the results of primal analysis show, a change of disinfectant results in quantitative changes in THMs and free chlorine in water supplied to the water supply network. The results of analysis con fi rm the higher potential of THMs formation and higher environmental impact of the combined method of UV/NaClO disinfection in distribution phase and in whole life cycle, mainly due to the increase of human toxicity factors. However, during the disinfection phase, gaseous chlorine use is more harmful for environment. But the fi nal conclusion states that water quality indicators are not signi fi cant
本文的目的是利用生命周期评价来比较水消毒过程中不同技术对环境的影响。ZUW Raba水处理厂为水消毒生命周期制定了两种方案:(1)历史方案,使用气态氯作为消毒剂;(2)实际方案,使用紫外线辐射和电解生成的次氯酸钠作为消毒剂。原始数据补充了ecoinvent 3数据库记录。环境影响评估采用IMPACT2002+方法,使用SimaPro 8.4软件计算其中点和终点指标。评估的重点是选定的生命周期阶段:消毒过程本身和随后的配水过程。评估使用了在Raba工厂观察到的流量和排放流数据。初步分析结果表明,消毒剂的改变会导致供水管网供水中THMs和游离氯的数量变化。分析结果证实,UV/NaClO联合消毒方法在分布阶段和全生命周期内具有较高的THMs形成潜力和较高的环境影响,主要原因是人体毒性因素的增加。然而,在消毒阶段,气氯的使用对环境的危害更大。但最后的结论是水质指标不显著
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引用次数: 5
Removal of nitrates and organic compounds from aqueous solutions by zero valent (ZVI) iron reduction coupled with coagulation/ precipitation proces 零价(ZVI)铁还原结合混凝/沉淀法去除水溶液中的硝酸盐和有机化合物
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2020.134532
E. Wiśniowska, M. Włodarczyk-Makuła
: The removal of nitrates from aqueous solutions is cumbersome because of their high solubility in water. The use of zero-valent iron (ZVI) for the reduction of nitrates is the chemical process and it is an alternative method to the biological ones. The aim of the present study was to evaluate the eff ectiveness of nitrates removal from water solution by using the ZVI process. The process was coupled with the removal of COD, phosphates and turbidity by using by-products of nitrates reduction. Batch tests were performed to evaluate the eff ectiveness of ZVI in the removal of nitrates from aqueous solutions. The eff ectiveness of nitrates removal was analyzed after 5, 10, 20, 30 and 60 min. and compared to the initial concentration of pollutants. Simultaneously analysis of ammonium nitrogen and nitrites was controlled to identify products of nitrates reduction under various pH. The removal of COD, phosphates and turbidity was also performed in batch tests. The eff ectiveness of the emoval by using three types of chemicals was compared – PIX, FeSO 4 , and waste Fe 2+ /Fe 3+ from the ZVI process. The results obtained in the study indicate that ZVI can be eff ectively used in the treatment of water polluted with nitrates and the by-products of the process could be further applied in the removal of COD, phosphates and turbidity. Based on the results the
由于硝酸盐在水中的溶解度很高,所以从水溶液中去除硝酸盐是很麻烦的。利用零价铁(ZVI)还原硝酸盐是一种化学过程,是替代生物过程的一种方法。本研究的目的是评价ZVI工艺对水溶液中硝酸盐的去除效果。该工艺与利用硝酸盐还原副产物去除COD、磷酸盐和浊度相结合。进行了批量试验,以评估ZVI去除水溶液中硝酸盐的有效性。分别在5、10、20、30和60 min后对硝酸盐的去除效果进行了分析,并与初始污染物浓度进行了比较。同时控制了铵态氮和亚硝酸盐的分析,确定了不同ph值下硝酸盐还原产物,并进行了COD、磷酸盐和浊度的去除试验。比较了三种化学药剂——PIX、feso4和ZVI工艺废铁2+ / fe3 +的去除效果。研究结果表明,ZVI可有效地用于硝酸盐污染水体的处理,其副产物可进一步用于COD、磷酸盐和浊度的去除。基于结果
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引用次数: 0
Adsorption of lead ions onto chemicallyactivated carbon from waste tire char and optimizationof the process using response surface methodology 废轮胎炭化学活性炭对铅离子的吸附及响应面法优化
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2019.130245
H. Rutto, Tumisang Seidigeng, Lucky Malise
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引用次数: 0
Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater 海藻酸钠包埋高岭土及其在雨水中铜吸附中的应用
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2022.140546
Anna Marszałek
by-products (Li et al. 2020). Currently, new sorption materials have been found for water purification that are readily available, economical and environmentally friendly. Clay materials are one of the cheap and natural adsorbents (Zhao et al. 2021). The use of natural clay minerals as adsorbents is widely used due to their high efficiency, relatively low operating costs and the possibility of recycling and regeneration (Derafa Garmia et al. 2018). Encapsulation has many advantages. One of them is the immobilization of the fine adsorbent powder. Adsorption with finely powdered material causes problems in recovering fine clay particles from the water, which additionally increases the turbidity of the water. Therefore, encapsulation of halloysite with sodium alginate polymer can be proposed as a solution to avoid these problems. Adsorbents should have good sorption capacity for heavy metals and appropriate porosity ensuring their removal (Pawar et al. 2020). As part of this study, laboratory-scale experiments were carried out to assess the effectiveness of the use of composite capsules based on halloysite and sodium alginate for the adsorption of copper
副产品(Li et al. 2020)。目前,人们已经发现了易于获得、经济环保的新型水净化吸附材料。粘土材料是廉价的天然吸附剂之一(Zhao et al. 2021)。天然粘土矿物作为吸附剂因其效率高、运行成本相对较低、可回收再生而被广泛使用(Derafa Garmia et al. 2018)。封装有很多优点。其中之一是细吸附粉的固定化。细粉状材料的吸附会导致从水中回收细粘土颗粒的问题,这又增加了水的浊度。因此,可以提出用海藻酸钠聚合物包封高岭土作为避免这些问题的解决方案。吸附剂应具有良好的重金属吸附能力和适当的孔隙度,以确保其去除(Pawar etal . 2020)。作为本研究的一部分,进行了实验室规模的实验,以评估使用基于高岭土和海藻酸钠的复合胶囊吸附铜的有效性
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引用次数: 2
Time factor influence on soil heavy metal concentration in relation to soil contamination assessment 时间因子对土壤重金属浓度的影响与土壤污染评价有关
IF 1.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-04-01 DOI: 10.24425/aep.2018.122292
E. Stanisławska-Glubiak, J. Korzeniowska
: The aim of this study was to investigate the dynamics of changes in the metal concentrations in the soils contaminated with Cd, Pb, and Zn during a 5 year period. Additionally the purpose included assessment of the suitability of 1 M HCl to control soil contamination with heavy metals compared to using of aqua regia method. The study was conducted in concrete-framed microplots, fi lled with two soils (sandy and silty), which were arti fi cially co-contaminated with Cd, Pb and Zn. There was a gradual decrease in these concentrations during the 5 year period. The concentrations of the metals extracted with 1 M HCl were very similar to the total concentrations. After 5 years of research, the topsoil had the smallest decrease in Pb concentration, which for the sandy, and silty soils was, respectively, by 7% and 9% in relation to the initial value.
摘要:本研究的目的是研究镉、铅、锌污染土壤中金属浓度在5年期间的动态变化。此外,目的还包括评价1 M盐酸与王水法相比控制土壤重金属污染的适宜性。该研究是在混凝土框架的微地块上进行的,该地块填有两种土壤(沙质和粉质),这两种土壤被人为地同时污染了Cd, Pb和Zn。在5年期间,这些浓度逐渐下降。用1 M盐酸提取的金属的浓度与总浓度非常接近。经过5年的研究,表层土壤的铅浓度下降幅度最小,砂质土壤和粉质土壤的铅浓度分别比初始值下降了7%和9%。
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引用次数: 0
期刊
Archives of Environmental Protection
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