检索结果-内蒙古大学图书馆

1st International Conference on Smart City Innovation, ICSCI 2018

作者： Nofiana Raharjo, S.H. Istirokhatun, T. Susanto, H. Integrated Laboratory for Research and Services Diponegoro University Semarang Indonesia Master Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Jl. Prof Soedarto SH Tembalang Semarang Indonesia

Supply of sustainable clean water is an activity that must be carried out towards smart cities. Nevertheless, the availability of water is decreasing both in quality and quantity. Wastewater including domestic wastewater is a potential source that can be reused as clean water supply dealing with water scarcity. This is due to domestic wastewater is produced continuously in large amount. In addition, reuse can reduce the total cost of handling wastewater. One modern technology that can be used for domestic wastewater treatment is membrane technology. Characteristics, various types, advantages, disadvantages, and challenges of membrane technology for domestic wastewater were discussed. This paper presents a review of domestic wastewater reuse by using membrane technology. More specifically this paper discusses domestic wastewater. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Membrane technology

来源：评论

学校读者我要写书评

暂无评论

Correction to: SARS-CoV-2 removal with a polyurethane foam composite

引用

environmental science and pollution research international 2023年第8期30卷 22033页

作者： Guilherme Pereira Schoeler Thays França Afonso Carolina Faccio Demarco Victor Dos Santos Barboza Tito Roberto Sant'anna Cadaval Andrei Valerão Igansi Marcos Alexandre Gelesky Janice Luehring Giongo Rodrigo de Almeida Vaucher Rafael de Avila Delucis Robson Andreazza Postgraduate Program in Environmental Sciences Center for Engineering Federal University of Pelotas R. Benjamin Constant 989 Pelotas RS CEP 96010-020 Brazil. Postgraduate Program in Materials Science and Engineering Federal University of Pelotas R. Gomes Carneiro 01 Pelotas RS CEP 96010-610 Brazil. Graduate Program in Biochemistry and Bioprospecting Research Laboratory in Biochemical and Molecular Biology of Microorganisms (LaPeBBiOM) Federal University of Pelotas RS Av. Eliseu Maciel Campus Universitário s/n Capão Do Leão CEP 96160-000 Brazil. School of Chemistry and Food Federal University of Rio Grande Av. Itália Km 8 s/n Rio Grande RS CEP 96203-000 Brazil. Postgraduate Program in Environmental Sciences Center for Engineering Federal University of Pelotas R. Benjamin Constant 989 Pelotas RS CEP 96010-020 Brazil. robsonandreazza@yahoo.com.br. Postgraduate Program in Materials Science and Engineering Federal University of Pelotas R. Gomes Carneiro 01 Pelotas RS CEP 96010-610 Brazil. robsonandreazza@yahoo.com.br.

来源：评论

学校读者我要写书评

暂无评论

Synthesis and characterization of magnetite (Fe3O4) nanoparticles from iron sand in Batanghari Beach

引用

IOP Conference Series: Materials science and engineering 2021年第1期1011卷

作者： I Safitri Y G Wibowo D Rosarina Sudibyo Postgraduate Program of Physics Education Universitas Ahmad Dahlan Yogyakarta Indonesia Postgraduate Program of Environmental Science Universitas Jambi Indonesia Faculty of Engineering Universitas Muhammadiyah Tangerang Indonesia Research Unit for mineral technology Indonesian Institute of Science (LIPI) Lampung Indonesia

The utilization of sand is still limited as a building material, so development is needed to increase the use-value of iron sand from the Batanghari River. No one study was found to improve iron sand in this field into magnetic material. This paper informs a case study of the synthesis and characterization of Fe3O4 nanoparticles from the Batanghari Jambi river iron sand using the coprecipitation method. Sintering temperature variations were carried out to see the effect of sintering temperature on crystal size, crystal structure, and optical properties of the sample. Sintering temperature variations used are 300°C, 400°C, and 500°C. The synthesis results showed that the sintering temperature of iron sand extract did not affect the crystal structure formed. However, the sintering temperature affects the size of the crystal; the higher the sintering temperature, the size of the crystal will be even greater. At a temperature of 300°C, a Fe3O4 crystal size was 6.94 nm, at a temperature of 400°C a Fe3O4 crystal size was 8.29 nm and at a temperature of 500°C a crystal size of 10.15 nm was obtained. The synthesis results also show that the higher the sintering temperature, the optical properties of the iron sand extract, the better. The decreasing energy gap value indicates this. At a temperature of 300°C, a gap energy value of 2.0 eV was obtained, at a temperature of 400°C a gap energy value of 1.9 eV was obtained and at a temperature of 500°C, the energy gap obtained was 1.8 eV.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Rapid and highly efficient adsorption of dye and heavy metal on low-cost adsorbent derived from human feces and Chlorella vulgaris

引用

environmental Nanotechnology, Monitoring and Management 2023年 20卷

作者： Wibowo, Yudha Gusti Lululangin, Bonifasius Revo Gifta Safitri, Hana Rohman, Arif Sudibyo Priyanto, Sugeng Syarifuddin, Hutwan Tatik Maryani, Anis Tawfiqurahman Yuliansyah, Ahmad Kurniawan, Ade Tsabitah, Natasya Taher, Tarmizi Petrus, Himawan Tri Bayu Murti Sustainable Mining and Environmental Research Group Department of Mining Engineering Institut Teknologi Sumatera Jl. Terusan Ryacudu Way Huwi Kec. Jati Agung Kabupaten Lampung Selatan Lampung 35365 Indonesia Center for Green and Sustainable Materials Institut Teknologi Sumatera Jl. Terusan Ryacudu Way Huwi Kec. Jati Agung Kabupaten Lampung Selatan Lampung 35365 Indonesia Departement of Chemical Engineering Universitas Gadjah Mada Jl Grafika No. 2 Sleman Bulaksumur 55284 Indonesia Department of Geomatic Engineering Institut Teknologi Sumatera Jl. Terusan Ryacudu Way Huwi Kec. Jati Agung Kabupaten Lampung Selatan Lampung 35365 Indonesia Research Center for Mining Technology - National Research and Innovation Agency Jl. Ir. Sutami KM. 15 Tanjung Bintang South Lampung Lampung 35361 Indonesia Department of Mechanical Engineering Universitas Negeri Jakarta Jakarta Indonesia Postgraduate Program of Environmental Science Universitas Jambi Jambi Indonesia Department of Environmental Engineering Institut Teknologi Sumatera Jl. Terusan Ryacudu Way Huwi Kec. Jati Agung Kabupaten Lampung Selatan Lampung 35365 Indonesia

Wastewater management is a pressing global concern, demanding effective, efficient, cost-friendly, and user-friendly solutions. Among the various methods available, adsorption has emerged as a practical choice. The primary culprits responsible for many human diseases in wastewater are heavy metals and dyes. In this study, we successfully harnessed low-cost biochar derived from human feces and Chlorella vulgaris to significantly accelerate and enhance the removal of heavy metals and dyes. Human feces and Chlorella vulgaris were transformed into biochar under three distinct conditions: biochar, Chlorella vulgaris, and a combination of both. Notably, these materials exhibited exceptional capabilities, removing heavy metals and dyes by as much as 98 % within a mere 10-minute timeframe. This material have adsorption capacity up to 56.8 mg/g for Mn and 20 mg/g for Methylene Blue. To comprehensively evaluate the performance of the optimal samples, we conducted a battery of tests, including performance assessments, sorption capacity measurements, exploration of five isotherm models, and kinetic analyses. Furthermore, we elucidated the sorption mechanisms through thorough characterizations of the materials using SEM, XRD, FTIR, and XRF, providing holistic insights into their properties. This study extends its relevance beyond the laboratory, offering valuable insights into future prospects and policy recommendations. In doing so, it serves as a pivotal resource for researchers and governmental bodies alike, facilitating progress in wastewater treatment and environmental policy development. © 2023 Elsevier B.V.

关键词： Adsorption Biochar Dye sorption Heavy metal sorption Nanocomposite material Wastewater

来源：评论

学校读者我要写书评

暂无评论

The Use of Oeceoclades Maculata (Lindley) Lyndley as an Active Bioindicator of Metals Concentration in the Urban Atmosphere

SSRN

引用

SSRN 2023年

作者： Raggi, Fernando Augusto Santos de Freitas, Welington Kiffer dos Santos, Fabiana Soares de Gois, Givanildo de Oliveira-Júnior, José Francisco Pereira Junior, Edson Rodrigues Magalhães, Luís Mauro Sampaio Environmental Technology – PGTA Fluminense Federal University – UFF Rio de Janeiro Volta Redonda27.255-125 Brazil Institute of Atmospheric Sciences ICAT Alagoas Fluminense Federal University – UFAL Alagoas MaceióCEP 57.072-900 Brazil Postgraduate Program in Biosystems Engineering – PGEB Fluminense Federal University – UFF Niterói Rio de JaneiroCEP 24.210-240 Brazil Analyst of Land and Cartography Institute of Rio de Janeiro State Rio de Janeiro Federal Institute of Education Science and Technology ITERJ Rio de JaneiroCEP 20 060-060 Brazil Sustainable Development Practices PPGPDS Rural Federal University of Rio de Janeiro – UFRRJ Rio de Janeiro Seropédica23.851-970 Brazil

In the last decades, biomonitoring has been notably tested using organisms sensitive to the presence of pollutants. To identify pollutants in the urban atmosphere, this study aimed to evaluate the potential of the species Oeceoclades maculata (Lindley) Lindley as a bioindicator of metals present in atmospheric air at different regions of the city of Volta Redonda (Rio de Janeiro – Brazil). For this, 31 orchid samples were distributed throughout the city, divided into seven sectors (North, Center-North, East, West, Southwest, Center-South, and South). Leaf samples were collected at 6 and 12 months of age. The concentrations of Cd, Pb, Zn, Fe, Mn, and Ni were analyzed via cluster analysis (CA), exploratory, and descriptive statistics. For Pb, Ni, and Cd metals, the results were below the Quantification Limit and therefore were discarded from the analysis. The CA defined two homogeneous groups (G1 and G2) of metals in Volta Redonda (RJ). The main highlight was the Fe element, which at 12 months increased the concentration by about 5 times when compared to the 6 months old plant. In the collection at 12 months, dry season, the highest concentrations of Zn, Fe, and Mn occurred in the Center-South sector, near the urban area close to the industrial activities of the municipality. At 6 months of age the plant – and during the rainy season - Zn and Fe showed the highest average concentrations in the Southwest sector of the city, being associated with both industrial activities and heavy vehicle traffic. Concentrations of Mn and Cu revealed higher values in the Center-North and North sectors of the municipality, again due to industrial activities and vehicle traffic. The use of the species O. maculata has proved to be effective for biomonitoring the accumulation of metals in atmospheric air, presenting an efficient assessment of environmental quality in urban ecosystems and complement information based on air quality stations. © 2023, The Authors. All rights reserved.

关键词： Air quality

来源：评论

学校读者我要写书评

暂无评论

Study of domestic wastewater in oil and gas field: A case study in the Cangkring river, Tuban, East Java

引用

IOP Conference Series: Earth and environmental science 2022年第1期963卷

作者： A S Patimah A Prasetya S H Murti Department of Mining Engineering Universitas Papua 98314 West Papua Indonesia Student of Doctoral Program in Environmental Science School of Postgraduate Universitas Gadjah Mada 55281 Yogyakarta Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Gadjah Mada 55281 Yogyakarta Indonesia Department of Geographic Information Science Faculty of Geography Universitas Gadjah Mada 55281 Yogyakarta Indonesia

Mudi Field, Tuban is an oil and gas producing area in East Java. Pad B Mudi Field is an office area for the oil and gas industry. The oil and gas industrial office area in Pad B Mudi Field produces domestic wastewater, which is channeled into the Cangkring River. Domestic wastewater flows directly into rivers. This study aims to determine the water quality of the Cangkring River region, which is mixed with domestic wastewater from Pad B Mudi Field. Samples of river water were taken at 3 points along with the river flow. Sample evaluation included physical, chemical, and biological characteristics. Sample test results were adjusted according to domestic wastewater quality standards and water quality standards. Parameters tested include temperature, TSS, pH, BOD5, COD, ammonia (NH3), phosphate (PO43-), chromium, oils and fats, and total coliforms. The highest values of the three samples for each parameter were temperature of 20.8 °C, TSS of 13 mg/L, pH of 7.8, BOD5 of 6.53 mg/L, COD of 17.38 mg/L, ammonia (NH3) of 6.13 mg/L, phosphate (PO43-) of 1.15 mg/L, chromium of 0.01 mg/L, oils and fats of 1.6 mg/L, and total coliform of 2400/100 mL. The values of the three points of the Cangkring River water test results met all the parameters of the domestic wastewater quality standards. In testing water quality standards, Cangkring River water met all parameters of class 4 water quality standards, namely water quality that can be used to irrigate agriculture. So it can be concluded that the condition of the Cangkring River water is safe for the community but is not suitable for drinking water, recreational infrastructure, and aquaculture.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Distribution of land stability based on standard penetration value (SPT) with various depth in Semarang city, Indonesia

引用

IOP Conference Series: Earth and environmental science 2021年第1期832卷

作者： P A Wahyudi P Purwanto T T Putranto Environmental Science Postgraduate Program Universitas Diponegoro Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Diponegoro Semarang Indonesia Department of Geology Faculty of Engineering Universitas Diponegoro Semarang Indonesia

Land stability is one of the main determining factors for the bearing capacity of the environment. The land stability is influenced by the condition and characteristics of the resources in the environment. The supply capacity in terms of the level of land stability for spatial use allocation has been based on the capacity of land for agriculture and the physical aspects of the land. It accordance with the local regulation i.e. no. 17 of 2009. Land stability includes the ability of land for agriculture and the physical aspects of land, as well as the stratigraphy of subsurface soil mass, especially geological characteristic. The research was conducted in Semarang City Indonesia by drilling and standard penetration test (SPT) and taking 448 undisturbed samples (UDS's) of soil that scattered in the research area. Analysis of UDS's have been carried out in the laboratory to obtain comparisons with SPT values in determining the level of land stability both vertically and horizontally. Soil types obtained are clay, silt, silt-sand, sand, and sand stone with a level of consistency and density in accordance with the measured SPT. Land stability values ranged from 0.201 kg/cm2-14.248 kg/cm2 covering all types of soil with different consistencies and density. The distribution of land stability is given in an infographic to get an overview of the land stability levels geographically at a depth of 2.5m, 5.0m, 7.5m, and 10.0m. This infographic can be useful for spatial evaluation, engineering guidance, and environmental research in Semarang City, Indonesia.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Preliminary Study of Smart Regional Waste Recycling in Boyolali, Central-Java, Indonesia 1

Preliminary Study of Smart Regional Waste Recycling in Boyol...

引用

1st International Conference on Smart City Innovation, ICSCI 2018

作者： Maryono Seruyaningtyas, K. Department of Urban and Regional Planning Faculty Engineering Diponegoro University Indonesia Master Program of Environmental Science School of Postgraduate Diponegoro University Jl.Prof.H.Soedarto S.H.Tembalang Kota Semarang Jawa Tengah 50275 Indonesia

Based on its functional aspects, the area is divided into two, namely urban and rural areas. Problems related to solid waste are not spared from that areas. However, problem-solving solutions cannot be generalized between the two areas because of the different characteristics of the community. This study took place in Boyolali District, Central-Java, consisting of 192 rural areas and 75 urban areas. Judging from the characteristics of the population, most people in rural areas do not consider the waste management system that is already important. The main reason is the mindset of the community and applicable waste retribution. Rural communities prefer to burn all their waste on their own land rather than having to pay for waste transportation or recycle their waste. Unlike the case with people in urban areas who have followed the pattern of solid waste management carried out by the government. In addition, there are several community groups in urban areas that have begun to actively recycle waste even its still use conventional technology. Therefore, the application of smart waste management, especially smart waste recycling were already applied in districts which closed to the capital region. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Rural areas

来源：评论

学校读者我要写书评

暂无评论

Evaluation of river water quality by using hierarchical clustering analysis

引用

IOP Conference Series: Earth and environmental science 2021年第1期896卷

作者： B Warsito S Sumiyati H Yasin H Faridah Department of Statistics Faculty of Sciences and Mathematics Diponegoro University Semarang Indonesia Doctoral Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Semarang Indonesia

Assessment of water pollution is a critical study because it can affect humans directly. Likewise, river water is widely used for various daily needs. It is important to group rivers according to their classes so that further analysis and action can be carried out. This article discusses the clustering of rivers in several areas in the southeast part of Central Java Province consisting of 14 sampling stations based on several water quality parameters. The pollutant parameters include TSS, electrical conductivity, pH, BOD, COD, and DO. The method used is Hierarchical clustering in which the object grouping begins with grouping two objects with the closest distance being combined into one cluster, and then continues until one cluster is formed consisting of all objects. The results show that five clusters are the ideal choice. Except for electrical conductivity, the parameters observed are dominantly the difference between clusters. Through the formation of river clusters based on their water quality, the characteristics of each cluster and cluster members with high similarity can be identified.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Reverse electrodialysis membrane for harvesting salinity gradient energy with and without spacer under natural wetland water

引用

AIP Conference Proceedings 2023年第1期2932卷

作者： Muthia Elma Dwi Resa Lamandau Siti Fatimah Satria Anugerah Suhendra Aulia Rahma Department of Chemical Engineering Faculty of Engineering Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia Materials and Membranes Research Group (M2ReG) Lambung Mangkurat University Jl. A. Yani KM 36 Banjarbaru 70714 Indonesia Environmental Science Doctoral and Postgraduate Program Lambung Mangkurat University Jl. Brigjen H. Hasan Basry Banjarmasin 70123 Indonesia

Salinity gradient energy (SGE) allows two solutions with different salt concentration to mixing and directly into electrical energy by reverse electrodialysis (RED) membrane. High power outputs are forecasted theoretically, but in real practice is still relatively low RED power efficiency. In this work, the spacer shadow effects on both membrane and solution compartment resistances are investigated by employing nylon spacer and without spacer. In addition, this experiment also proposes the power density performance of RED membrane under natural wetland water as low saline solution and variation of high saline solution i.e., artificial brackish water (0.3 wt% NaCl) and artificial seawater (3.5 wt% NaCl). The results indicate that the spacer shadow effect on RED membrane has a correlation with energy output generated. The used of spacer led to an increase in stack resistance and decrease in power density compared to without nylon spacer. This result increases the impact of RED renewable power source and brings it closer to practical implementation, especially for the potential natural wetland water as low saline solution. The power output was computed, obtaining a maximum power density of 0.19 W/m2 with variations without spacers, and 0.14 W/m2 with spacers. Results show that of the cell components directly influences the physicochemical principles governing the RED process and is closely related to the cell output parameters. In turn, it is possible to increase the performance of a RED cell by optimizing operation without spacers to avoid the shadow effect.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：