IOP Conference Series: Earth and Environmental Science最新文献

Response Surface Methodological Approach for the Adsorptive Removal of Geosmin and 2-Methylisoborneol on Sodium Hydroxide-Treated Powdered Activated Carbon 氢氧化钠处理粉末状活性炭吸附去除土荆皮和 2-甲基异龙脑的响应面方法

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012002

Ryan Kyle M. Ramos, Joseph Albert M. Mendoza, Tsair-Fuh Lin, Yi-Ting Chiu and Melvin R. Pacquiao

{"title":"Response Surface Methodological Approach for the Adsorptive Removal of Geosmin and 2-Methylisoborneol on Sodium Hydroxide-Treated Powdered Activated Carbon","authors":"Ryan Kyle M. Ramos, Joseph Albert M. Mendoza, Tsair-Fuh Lin, Yi-Ting Chiu and Melvin R. Pacquiao","doi":"10.1088/1755-1315/1393/1/012002","DOIUrl":"https://doi.org/10.1088/1755-1315/1393/1/012002","url":null,"abstract":"Geosmin (GSM) and 2-Methylisoborneol (MIB) are organic contaminants that imparts an objectionable taste and odor in drinking water. This study attempts to enhance the adsorptive removal of these compounds using sodium hydroxide (NaOH)-treated powdered activated carbon (PAC). The modified adsorbent was characterized by infrared spectroscopy, which revealed that the basic treatment reduces the aromaticity of the PAC, particularly for the PAC treated with 2 M of NaOH. The effects of initial GSM and MIB concentration (100-300 ng/L), adsorbent dosage (5-15 mg/L), and NaOH concentration (0-2 M) on the percent removal of GSM and MIB were also examined by response surface methodology. The adsorption of both compounds is more sensitive to the initial adsorbate concentration and the adsorbent dosage. The NaOH treatment resulted in the increased adsorptive removal of both GSM and MIB, although to a lesser extent than the two adsorption parameters. The optimum values of PAC dosage, initial adsorbate concentration, and NaOH concentration are 12.925 mg/L, 101.197 ng/L, and 1.961 M for GSM and 13.933 mg/L, 110.000 ng/L, and 1.700 M for MIB. The performance of the adsorptive models was validated by coefficient of determination and analysis of variance, which suggests the statistical significance of the model and good fit between the predicted and observed variables.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Torrefaction performance of Macadamia husk under a flue gas atmosphere for solid biofuel applications 在烟道气气氛下澳洲坚果壳的热解性能，以应用于固体生物燃料

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012004

Kanit Manatura, Supaporn Klinkesorn, Kitipong Jaojaruek, Kunthakorn Khaothong and Preeda Prakotmak

引用次数: 0

On the colloidal and filtration properties of a polymer-amended waste K+-rich bentonite for use as a low-density solid additive in water-based drilling fluids 聚合物添加的富 K+ 废膨润土作为水基钻井液低密度固体添加剂的胶体和过滤特性

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012008

Youstina Ramsis, Loizos Papaloizou, Ernestos Sarris and Demetris Vattis

{"title":"On the colloidal and filtration properties of a polymer-amended waste K+-rich bentonite for use as a low-density solid additive in water-based drilling fluids","authors":"Youstina Ramsis, Loizos Papaloizou, Ernestos Sarris and Demetris Vattis","doi":"10.1088/1755-1315/1393/1/012008","DOIUrl":"https://doi.org/10.1088/1755-1315/1393/1/012008","url":null,"abstract":"Bentonite is a known material for its water-soluble nature and ability to develop exceptional colloidal properties when in aqueous environments and is Na+-rich. Some bentonites are not capable of achieving the desired colloidal properties due to either low smectite content and/or low or negligible Na+ ions content. An example of such bentonite is like the one used for this research work, which is waste K+-rich bentonite. Even though it previously was thermally Na2CO3-activated to upgrade its properties aiming to create colloids, it demanded further viscosity enhancement additives to achieve the required rheological and filtration control satisfying API standards when added in a complete water-based drilling fluid (WBF). We propose anionic polymerization to enhance the performance of the thermally activated waste K+-rich bentonite, at various concentrations. The basic objective is to investigate the polymer with the strongest amendment effect on the K+-rich bentonite by evaluating the rheological and filtration properties by means of Couette viscometry and LPLT tests respectively. Results collected were used to construct mathematical correlations suggesting that anionic polymers can be considered a very effective and efficient solution to reach the desired colloidal properties in WBF. The proposed solution, even with minor quantities, proves to be effective for waste K+-rich bentonite making the material suitable for WBF by creating composite structures that effectively reduce fluid losses and achieve the required viscosity control in WBF. Finally, the exploitation of this material aligns with the circular economy principles contributing to environmental sustainability development.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of air humidity distribution caused by fabric air duct arrangement for human comforts by computational fluid dynamic 通过计算流体力学分析织物风管布置对人体舒适度造成的空气湿度分布

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012005

Kunthakorn Khaothong, Supakij Boonpaijit, Kanit Manatura, Kitipong Jaojaruek and Weerachai Chaiworapuek

引用次数: 0

Impact of Environmental Conditions on the Preservation of Ageing Traditional Oil Paints on Wood Surfaces 环境条件对木质表面传统油画老化保护的影响

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012007

L Zárybnická, D Machová, L Dvořák, J Baar, P Mácová and M Kloiber

{"title":"Impact of Environmental Conditions on the Preservation of Ageing Traditional Oil Paints on Wood Surfaces","authors":"L Zárybnická, D Machová, L Dvořák, J Baar, P Mácová and M Kloiber","doi":"10.1088/1755-1315/1393/1/012007","DOIUrl":"https://doi.org/10.1088/1755-1315/1393/1/012007","url":null,"abstract":"Surface weathering of wood is the degradation progressive change of the outer layer over time due to exposure to environmental conditions. Traditional oil paints offer several advantages when used on exterior wood surfaces - good durability, smooth finish, moisture resistance, excellent coverage, and gloss. Oil paints have a long history of protecting exterior wood surfaces, potentially lasting 50 to 100 years with minimal maintenance. One negative effect of this traditional finish is surface oxidation. As part of the study, paints were applied to the surface of the wood either in one layer (lazure) or in multiple layers (opaque). The properties of the substrate also affect the resulting quality and durability. Therefore, another sorting element was included in the study: the type of wood processing (machine vs. handmade). The work aimed to compare the durability of prepared oil paints on a wooden surface. The prepared samples were exposed to weather conditions corresponding to the Central European climate for 6 years. The samples were then analysed for chemical changes using Fourier transform infrared spectroscopy (FTIR), water contact angle determination and digital optical microscopy to preserve the paint layer. Multi-layer painted wood showed minimal colour changes even after 6 years, but the influence of the processing method of the wood itself could not be demonstrated.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep Eutectic Solvents as A Sustainable Solution in Gas Separation: A Mini Review 深共晶溶剂作为气体分离的可持续解决方案：小型回顾

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012003

Y Elhamarnah and H Qiblawey

引用次数: 0

Wyoming's produced water: Analysis and green hydrogen potential 怀俄明州的产水：分析和绿色制氢潜力

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012006

C Abdelhamid, A Latrach, I. Mellal, A. Dehdouh, L. Allam, M Rabiei and K. Venugopal

{"title":"Wyoming's produced water: Analysis and green hydrogen potential","authors":"C Abdelhamid, A Latrach, I. Mellal, A. Dehdouh, L. Allam, M Rabiei and K. Venugopal","doi":"10.1088/1755-1315/1393/1/012006","DOIUrl":"https://doi.org/10.1088/1755-1315/1393/1/012006","url":null,"abstract":"Produced water, a byproduct of oil and gas extraction, poses significant environmental and logistical challenges for the energy industry. This paper conducts a thorough analysis of produced water volumes from oil and gas wells in Wyoming, examining its chemical composition and potential for hydrogen production. Utilizing data from the Wyoming Oil and Gas Conservation Commission and U.S. Geological Survey, it offers insights into production trends and influencing factors. The study employs advanced analytical techniques to identify contaminants such as heavy metals, hydrocarbons, and salinity, guiding safe management strategies. With growing interest in hydrogen as a clean energy carrier, the paper evaluates the compatibility of produced water with hydrogen production processes, considering treatment procedures and energy efficiency. By addressing these aspects, it contributes to efforts for a sustainable transition to clean energy systems. This comprehensive examination sheds light on the potential of produced water as a resource, highlighting opportunities for its utilization in hydrogen production while mitigating environmental impacts.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peer Review Statement 同行评审声明

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/011002

引用次数: 0

Assessing the Techno-Economics of Solar-Assisted Absorption Air Conditioning in a University Building in Jordan 评估约旦大学大楼太阳能辅助吸收式空调的技术经济性

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-31 DOI: 10.1088/1755-1315/1393/1/012001

Yousef Altork and Duaa Salem

{"title":"Assessing the Techno-Economics of Solar-Assisted Absorption Air Conditioning in a University Building in Jordan","authors":"Yousef Altork and Duaa Salem","doi":"10.1088/1755-1315/1393/1/012001","DOIUrl":"https://doi.org/10.1088/1755-1315/1393/1/012001","url":null,"abstract":"Adsorption chillers are environmentally friendly cooling systems that use non-hazardous refrigerants, such as CFCs or HCFCs, and are efficient and adaptable for various applications, particularly in utilizing waste heat or low-grade heat sources. The economic viability of a solar water-lithium bromide absorption system in large commercial university building with higher electricity rates in Jordan's central province was assessed using the Payback Period (PBP) methodology. The system's PBP was found to be 9.65 years, affirming its economic feasibility. To enhance economic viability, adjustments to the Coefficient of Performance (COP) were explored. Technical evaluations incorporating actual thermodynamic data revealed a COP of 0.785, an improvement from the assumed 0.70. Strategies such as lowering the condenser's working temperature or increasing the evaporator's operating temperature positively impacted the system's performance. Notably, at a condenser temperature of 47.5°C, the COP reached 0.77 with a cooling capacity of 21.48 kW, while at an evaporator temperature of 15°C, the COP and cooling capacity were 0.78 and 21.36, respectively. The study demonstrated that increasing the generator temperature led to a rise in COP, with the highest values of 0.785 and 22.68 kW achieved at 95.0°C. Furthermore, a techno-economic analysis revealed a reduced payback period of 8.66 years, emphasizing the influence of increased COP on the absorption air conditioning system's economic performance.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the properties of electrical sources of ozonators through mathematical models 通过数学模型研究臭氧发生器电子源的特性

IOP Conference Series: Earth and Environmental Science Pub Date : 2024-08-01 DOI: 10.1088/1755-1315/1390/1/012021

Yessen Bagdollauly, Gulzada Yerkeldessova, Ayaulym Oralbekova, Elvira Chukenova, Nuraly Ilyassov, Assem Yerzhan, Palvan Kalandarov

{"title":"Investigation of the properties of electrical sources of ozonators through mathematical models","authors":"Yessen Bagdollauly, Gulzada Yerkeldessova, Ayaulym Oralbekova, Elvira Chukenova, Nuraly Ilyassov, Assem Yerzhan, Palvan Kalandarov","doi":"10.1088/1755-1315/1390/1/012021","DOIUrl":"https://doi.org/10.1088/1755-1315/1390/1/012021","url":null,"abstract":"The study of the properties of electrical power sources of ozonators through mathematical models is crucial for satisfying sanitary-hygienic and industrial needs. Ozone is a strong oxidant with disinfectant properties, making its application widespread. However, the efficiency of its production largely depends on the quality of the ozonators’ electrical power sources. In this research, we developed and utilized mathematical models aimed at determining the main electrical parameters of various types of ozonators used in ozone production. The results of the study show possibilities for enhancing the energy efficiency of ozonators and optimizing their operational parameters. Mathematical modeling serves as a significant tool for predicting the operating modes and necessary electrical power parameters of ozonators, helping to increase their overall productivity and reduce the cost of ozone production. During the analysis, we considered the stability of the electrical power sources of ozonators, their high-frequency power transmission, and the level of electrical energy consumption. Our research aimed to determine how these parameters affect the ozone production process and, considering these effects, to design and improve the electrical power sources of ozonators.","PeriodicalId":14556,"journal":{"name":"IOP Conference Series: Earth and Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0