Environmental and Climate Technologies最新文献_第8页

Incorporating User Behaviour Into System Dynamics Modelling: A Case Study of Private vs. Public Transport in Latvia 将用户行为纳入系统动力学建模:拉脱维亚私人与公共交通的案例研究

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0022

A. Safronova, Aiga Barisa, V. Kirsanovs

引用次数: 2

Algae Culture Conditions and Process Parameters for Phycoremediation and Biomaterials Production 藻类修复和生物材料生产的藻类培养条件和工艺参数

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0082

M. Bertolini, F. Conti

引用次数: 2

Mitigating Overvoltage in Power Grids with Photovoltaic Systems by Energy Storage 利用储能技术缓解光伏系统电网过电压

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0036

Sarah Landl, Harald Kirchsteiger

引用次数: 2

Hydrothermal Carbonisation of Biomass Wastes as a Tool for Carbon Capture 生物质废物的水热碳化作为碳捕获的工具

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0032

L. Ansone-Bērtiņa, L. Arbidans, V. Ozols, M. Kļaviņš, V. Obuka, V. Bisters

{"title":"Hydrothermal Carbonisation of Biomass Wastes as a Tool for Carbon Capture","authors":"L. Ansone-Bērtiņa, L. Arbidans, V. Ozols, M. Kļaviņš, V. Obuka, V. Bisters","doi":"10.2478/rtuect-2022-0032","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0032","url":null,"abstract":"Abstract Replacing fossil resources with bioresources is one of the promising directions for more environmentally friendly energy production, but the production and processing of biomass generates a large amount of waste with limited use and recycling possibilities. In this respect Hydrothermal Carbonisation (HTC) offers a sustainable and cost-effective solution for disposal and creation of new products from biomass through resource recovery and through climate-neutral process. In this study the impact of biomass type and HTC conditions on the yield and properties of artificial humic substances and hydrochar to achieve carbon capture aim has investigated. A major impact on the yield of HTC products do have the duration and temperature of the treatment, as well as catalyst used (pH of the reaction) and changing the carbonisation conditions it is possible to design the desirable composition of obtained products. During HTC process significant changes of the biomass composition happens resulting in the removal of most labile components. Although the carbon dioxide sorption capacity of hydrochar is relatively low, after activation efficient sorbent (activated carbon) can be obtained, prospective for carbon capture aims.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88616761","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

Production of Biodiesel Using Phosphate Rock as a Heterogeneous Catalyst. An Optimized Process Using Surface Response Methodology 以磷矿石为多相催化剂生产生物柴油。利用表面响应法优化工艺

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0062

Janet Kiprono, H. Rutto, T. Seodigeng

{"title":"Production of Biodiesel Using Phosphate Rock as a Heterogeneous Catalyst. An Optimized Process Using Surface Response Methodology","authors":"Janet Kiprono, H. Rutto, T. Seodigeng","doi":"10.2478/rtuect-2022-0062","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0062","url":null,"abstract":"Abstract In the present study, calcined phosphate rock was used as a heterogeneous catalyst for biodiesel production from waste cooking oil (WCO). Response surface methodology was used to optimize and determine the significant process variables that affected the experiment. A 5-level-4 factor Central composite design consisting of 30 experiments was used to develop a quadratic polynomial model. The following parameters were optimized, namely, reaction temperature (40–90 °C), catalyst to oil weight ratio (1–5 %), reaction time (40–120 min), and methanol to oil ratio (10:1–18:1). Maximum biodiesel yield of 96.07 % was obtained through numerical optimization at reaction temperature 62.63 °C, catalyst to oil weight ratio of 3.32 %, reaction time 79.07 min, and alcohol to oil ratio 14.79:1. Fourier transform Infrared Spectra (FTIR) analysis was used to characterize the phosphate rock in its raw form, after calcination at 1000 °C and after the first and the fourth reuse cycle. According to the American society for testing and material (ASTM D6751), the fuel properties such as kinematic viscosity, pour point, cloud point, and density were measured and were found to be within the stipulated range.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80615704","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

Implications of the FMEA Method in Evaluating Amirkabir Dam’s Environmental Risk FMEA方法在Amirkabir大坝环境风险评价中的意义

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0074

Yousef Kassem, H. Gökçekuş, A. Iravanian, M. Nategh

引用次数: 0

First Results on the Removal of Emerging Micropollutants from Municipal Centrate by Microalgae 微藻去除城市污水中新兴微污染物的初步结果

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0004

V. Mezzanotte, F. Marazzi, E. Ficara, M. Mantovani, S. Valsecchi, Francesca Cappelli

引用次数: 3

Potential of Using WVO for a Restaurant EV Charging Station 将WVO用于餐厅电动汽车充电站的潜力

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0030

Aiman Albatayneh

{"title":"Potential of Using WVO for a Restaurant EV Charging Station","authors":"Aiman Albatayneh","doi":"10.2478/rtuect-2022-0030","DOIUrl":"https://doi.org/10.2478/rtuect-2022-0030","url":null,"abstract":"Abstract This research comprised an evaluation study for a charging station based on waste vegetable oil or biodiesel fuel. The biodiesel was produced from waste vegetable oil (WVO) and will be used (or the WVO) to charge electric cars for restaurant’s customers in their car park. The main concept behind the charging station is to be part of a restaurant that serves its customers and then uses its WVO or biodiesel to fuel a diesel engine that generates electricity to charge their electric vehicles (EV). The economic and environmental impacts of the direct use of WVO-EV charging station are promising because the costs associated with purchasing WVO are lower than those of purchasing crude oil or gas. There are several options and scenarios when selecting the perfect sized generator; using charging up to a maximum rated power of 6.6 kW is more feasible despite its higher initial cost as the simple payback period will be less than 3 years and the internal rate of return of the project is 44 %. The total saving at the end of the project for a generator with maximum rated power of 10 kW (option B) is $ 58 000. Conversely, for a generator with maximum rated power of 6.6 kW (option A) the project will cover its initial cost in around 4 years and the internal rate of return is 26 %. The total saving at the end of the project is $ 52 000. Furthermore, lower amount of greenhouse gases is produced from the burning of WVO directly. The final results showed that WVO is more feasible as it is available for free and could be burnt directly in the diesel engine. In economic terms, the project is feasible for both WVO and biodiesel as it has a high net present value and short payback period. A WVO-EV charging station can also improve the national economy by preparing it for the electric car era and, if applied to a large number of restaurants, will save a significant amount of electricity and reduce the expected strain on the electricity grid caused by the increasing number of electric cars.","PeriodicalId":46053,"journal":{"name":"Environmental and Climate Technologies","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89248362","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: 2

A Study on a Recuperative Suspension as an Alternative Energy Source 可再生悬液作为替代能源的研究

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0017

Omari Zizivadze, Isidore Kachakhidze, A. Geguchadze, B. Zivzivadze, Anzor Kuparadze, Nata Sulakvelidze

引用次数: 0

External Costs of Passenger Cars and Light Commercial Vehicles in Latvia 拉脱维亚乘用车和轻型商用车的外部成本

IF 1.4

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI: 10.2478/rtuect-2022-0086

Karlis Mendzins, Aiga Barisa

引用次数: 0