Geomatics and Environmental Engineering
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ISSN 1898-1135
e-ISSN: 2300-7095
Issue Date
2023
Volume
Vol. 17
Number
No 4
Description
Journal Volume
Geomatics and Environmental Engineering
Vol. 17 (2023)
Projects
Pages
Articles
An application of anaerobic-aerobic combined bioreactor efficiency in COD removal
(Wydawnictwa AGH, 2023) Kavousi, Rezvan; Borghei, Seyyed Mehdi
Over the past few decades, anaerobic-aerobic wastewater treatment systems have been widely used in industrial and municipal wastewater treatment. This study was conducted to examine the effects of combined anaerobic-aerobic bioreactors in the removal of chemical oxygen demands (COD) while reducing phosphate concentrations in synthetic wastewater. In this project, a bioreactor with the dimensions of 10 cm × 10 cm × 80 cm with respective Kaldnes packing ratios of 90 and 30% for the anaerobic and aerobic sections was designed. A combined anaerobic-aerobic reactor’s structure made changing hydraulic retention times only possible by adjusting the volume of its aerobic and anaerobic sections. In the first case, the anaerobic and aerobic sections of the reactor occupied 30 and 50 cm of its height, respectively. The height of the anaerobic section decreases to 12.5 cm in the second case. In aerobic and anaerobic sections, pH was within a neutral range, temperature was 37°C. MLSS (mixed liquor suspended solids) was 1220 and 1030 mg/L, and attached growth was 743 and 1190 mg/L respectively. In order to evaluate COD in the wastewater, three different initial phosphorus concentrations were tested: 12.8, 32.0 and 44.8 mg/L, as well as four COD: 500, 1000, 1200 and 1400 mg/L. Considering the results, COD removal is greater than 80% when the valve 2 is in the anaerobic section outlet regardless of the concentration of phosphate. In this case, the best result is for inlet COD of 500, where the reactor can eliminate more than 90%. When the COD concentration reaches 1000 to 1400 ppm, the reactor’s COD removal efficiency declines to 60%.
3D marine cadastral system to support marine spatial planning implementation in Indonesia - a case study of Penanjung Bay, Indonesia
(Wydawnictwa AGH, 2023) Kurniawan, Agung; Pranowo, Widodo Setiyo; Hardjo, Karen Slamet; Santoso, Agus Iwan; Khakhim, Nurul; Purwanto, Taufik Hery; Setiyadi, Johar
The ocean is a formation that has a volume and consists of a surface layer of water, a column, and a bottom. Visualization of the sea on a digital map is important to support the acceleration of marine spatial planning (MSP), which is generally two-dimensional on a flat plane. A marine cadastre is defined as an instrument used in managing spatial boundaries, which describes, visualizes, and realizes legally defined boundaries as well as rights, restrictions, and responsibilities related to activities in the marine environment. Therefore, visualization in 3D will open a wider perspective than conventional maps. The 3D marine cadastral system was built using the Penanjung Bay pilot project and the QGIS2ThreeJS plugin with JavaScript. The results obtained can provide a 3D visualization of the position and boundaries for each component of the marine cadastre in Penanjung Bay with a broader picture of the sea spatial layout in the region.
Procedural inaccuracies and the issue of determining real estate value in court proceedings
(Wydawnictwa AGH, 2023) Sokół, Krzysztof; Sobolewska-Mikulska, Katarzyna
The aim of the article is to analyze proceedings resulting in the determination of the value of real estate and an attempt to capture the reasons why the judicial determination of its value sometimes requires alternative or subsequent opinions on the value of the property by another expert valuer. For the purposes of this article, the method of examining individual cases was generally used, i.e. two exemplary court cases in which the main opinions, supplementary opinions, subsequent supplementary opinions, and subsequent main opinions were prepared and where an expert valuer was additionally summoned to a hearing in order to directly submit a supplementary opinion to the court.
The use of geodata in the process of the ventilation of the city of Krakow
(Wydawnictwa AGH, 2023) Budkowski, Szczepan
The purpose of this publication is to analyze air pollution on the example of the city of Krakow, as well as to consider the possibility of using geodata for environmental protection. In addition to case study analysis as the leading research method, the article also uses the observation, analysis, and statistical methods. The article presents the concept of using GIS spatial analyzes and spatial planning as an element of the Green New Deal in the process of ventilating the city of Krakow. When developing a project related to city ventilation, it is extremely important to have the most accurate data on the strength, direction of the wind, type of pollution, and the number of emitters. Spatial analyzes are also able to indicate the main ventilation corridors of the city. These include, above all, areas located on the Vistula River, but also the widest city streets. Such results make it possible to more consciously manage space.
Development of guide material for the education of cultural immovable heritage management for bachelor students of geomatics engineering
(Wydawnictwa AGH, 2023) Çoruhlu, Yakup Emre; Er Nas, Sibel; Uzun, Bayram; Yıldız, Okan; Şahin, Fatih; Terzi, Fatih; Çelik, Mehmet Özgür
Türkiye has a wealth of foundations and their properties, assets managed by the General Directorate of Foundations (GDF) through its geomatics engineers. This article aims to identify the misconceptions of senior undergraduate geomatics engineering students (sample group) about the relationship between foundations and land ownership registered as cultural heritage. It will develop and implement materials to eliminate these misconceptions and evaluate their effectiveness. This study consists of a preliminary, a pilot and the main application. The data collection instruments are an open-ended questionnaire, a semi-structured interview form and conceptual understanding tests. As a result of the analysis of the pre-study and the pilot study, guidance materials on information deficits and misunderstandings in the application of Article 30 of the Law on Foundations were developed. In the analysis of the quantitative data, the Wilcoxon signed-rank test is used, a non-parametric analysis methods. In the light of the data obtained from the study, it is recommended that materials be developed in other areas of land management to investigate their effectiveness.