Dalma Bódizs

58854025200

Publications - 6

APPLICATION OF EMISSION FACTORS TO EXPLORE THE POTENTIAL OF HYDROGEN PRODUCTION FROM SEWAGE SLUDGE

Gergely Zoltán Macher Dóra Sipos Judit Pécsinger Dalma Bódizs Éva V. Pestiné Rácz

Publication Name: Iet Conference Proceedings

Publication Date: 2024-01-01

Volume: 2024

Issue: 8

Page Range: 16-24

Description:

The study aims to investigate the possibility of producing hydrogen from sewage sludge obtained during wastewater treatment, using emission factors. It provides an overview of current trends in treating sewage sludge, analyses the potential for generating biogas and hydrogen from sewage sludge, and examines the role of hydrogen in transitioning towards greener energy. The research methodology uses statistical approaches to derive potential values from baseline data through emission factors and categorizes study areas based on this information. The background indicates that biogas-based hydrogen production offers benefits such as utilizing renewable energy sources and reclaiming sewage sludge. There has been a substantial increase in municipal wastewater treatment sludge generation while simultaneously reducing non-hazardous sludge disposal by landfilling. The focus is on utilizing these resources effectively instead of squandering them, while also identifying previously wasted potential over recent years. The primary objective of the paper is to assess the untapped potential that has not been fully utilized in recent years. The research direction was shaped by access to statistical data, albeit constrained by its focus on a typical technological process. The study delves into an increasingly relevant area, with outcomes applicable for policymakers as well as professionals in energy and environmental fields.

Open Access: Yes

DOI: 10.1049/icp.2024.2675

Investigation of the Effects of Biodegradable and Compostable Polymers as Sources of Microplastics on the Water-Soil Continuum: A Review

Gergely Zoltán Macher Dalma Bódizs Kornélia Horváth Anett Bedő

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 307-312

Description:

The amount of research and publications related to microplastic pollution has been steadily increasing in recent years, but at the same time, our current knowledge on the topic is still based on occasional point measurements. As a result of these point measurements, it becomes obvious that new research areas and disciplines are also connected to the topic of microplastics. Various biotic and abiotic processes can cause microplastics to enter the environment and spread within it. All of these mechanisms can arise from the moisture conditions of the tested medium, temperature differences, or even from the decomposing and transforming activities of microorganisms. The rise of biodegradable and compostable plastic bags can also be considered a source of this kind since polymer products labelled as environmentally friendly can be identified as secondary sources during their decomposition processes. Therefore, both industrial and household compost can contain microscopic polymer residues, the application of which involves a potential risk of environmental pollution. In recent years, several international studies have dealt with various aspects of the degradation of these products, including the use of problems caused by residual microplastics and their environmental effects. The focus of our paper is not on the development of a new scientific methodology but a summary of the current situation formed through research results dealing with the current environmental safety and environmental health risks of microplastic pollution caused by biodegradable polymers.

Open Access: Yes

DOI: 10.3303/CET23107052

The Effect of the Dam-building Activity of the Eurasian Beaver (Castor fiber) on Changes in the Soil Moisture Conditions and Vegetation Associations of the Beaver Meadows in the Valley of Ablánc-stream

Gergely Zoltán Macher Dalma Bódizs Anett Bedő

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 319-324

Description:

Nowadays, more information is available about the activities of the Eurasian beaver (Castor fiber) as an ecosystem engineer species and the resulting ecosystem services. The environment-shaping activity of beavers not only affects the bed conditions of a given body of water but also affects the degree of diversity of the vegetation and fauna surrounding it. The research published in connection with this topic has only in recent years begun to deal more intensively with the condition characterisation and function analysis of the flooded areas under constant beaver influence, called beaver meadows. The focus of this paper is the investigation of beaver meadows directly connected to the dam system consisting of 19 beaver dams located along the Ablánc stream. The research examines the effect of the activity of the beaver colony, which has been continuously monitored for almost two years, on the soil moisture conditions of the beaver meadows in the Natura 2000 nature conservation area and to what extent this is reflected in the characteristics of the plant community. The focus of the analysis is the vertical distribution of soil moisture in the upper soil layer. During the vegetation mapping, 10 squares were designated to determine plant community parameters. High soil moisture values were detected in the examined quadrates, which varied between 39.0 φ% and a maximum of 50.0 φ%. A significant number of taxa could be identified - such as Myosoton aquaticum and Petasites hybridus - whose primary ecological requirements are a permanent wet environment and continuous water impact.

Open Access: Yes

DOI: 10.3303/CET23107054

The Impact of Biodegradable and Compostable Plastic Products on the Occurrence and Contamination of Microplastics in Compost Leachate

Gergely Zoltán Macher Dóra Sipos Judit Pécsinger Dalma Bódizs Éva V. Pestiné Rácz

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 835-840

Description:

The composting of organic and bio-waste is widely practised, and in some regions, it is even a mandatory waste management practice. A valuable by-product of this process is the nutrient-rich liquid known as compost leachate, which holds great potential for use in agriculture and horticulture. This investigation delves into the content, production methods, and impact of compost leachate on different crops while also emphasising its susceptibility to external factors. Compost leachate forms during composting and serves as an effective soil amendment material containing essential nutrients, microorganisms, and humic acids beneficial for plant growth. The quality of this by-product can be compromised by contamination from organic waste materials. Today, there has been widespread adoption of biodegradable or compostable plastic products in household composting systems due to misconceptions or public attitudes towards their usage. In-home composting, the process of decomposition might be slower, and there could be issues with the conventional waste management systems that are still commonly used. Additionally, not all degradable products are exclusively made from natural materials. Sometimes, synthetic polymer chains are utilised to accelerate degradation. This study aims to explore, through a simulated experiment, the possibility of microplastic contamination in composting environments, primarily due to the presence of biodegradable and compostable plastic items in these settings. The research findings indicate that the potential risks of microplastics to compost and compost leachate have been insufficiently explored, only recently becoming a focal point. The key conclusions suggest that the development of strategies to address these ecotoxicological factors is becoming increasingly pressing.

Open Access: Yes

DOI: 10.3303/CET24114140

The Potential for Analyzing the Correlation Between the Compressive Stress Resistance of Red Clover Seeds and the Environmental Conditions during Seed Maturation Using FT-IR Spectroscopy

Eszter Kókai Gergely Zoltán Macher Dalma Bódizs Anett Bedő Marcell Lócsi Szilveszter Gergely

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 715-720

Description:

The paper aims to examine the connection between environmental conditions during seed maturation and the ability of seeds to compressive stress, supported by statistically significant findings. The study involves using Fourier transform infrared (FT-IR) spectroscopic analysis on red clover seeds under varying pressure levels, specific tensions, and selected quality parameters. The methodology relies on a general FT-IR spectroscopic approach, with spectral comparisons made against results from pressure-induced rupture. Through this research, new methods for seed testing are intended to be informed by differential and correlation results across technical parameters and different measurement settings. The analyses indicated a noticeable difference of several 10 N in visible features between seed maturation stages and compressive tolerance. Given the novelty of the aspects being explored, one primary influencing factor is identified as the scarcity of available literature, which also serves as a limitation of this research. The obtained results have potential applications for analysts, agricultural specialists, consultants, and experts involved in seed management and distribution.

Open Access: Yes

DOI: 10.3303/CET24114120

Assessing the Urban Climate Resilience of Cities in Hungary Using an Index-based Approach

Gergely Zoltán Macher Dóra Sipos Judit Pécsinger Dalma Bódizs Éva Veronika Pestiné Rác

Publication Name: Journal of Sustainable Development of Energy Water and Environment Systems

Publication Date: 2025-09-01

Volume: 13

Issue: 3

Page Range: Unknown

Description:

Climate resilience in urban areas is increasingly critical in the face of climate change, particularly in regions where climate variability poses significant challenges. This study introduces the Climate Resilience Index for Town Sustainability, a novel, multidimensional framework designed to evaluate the resilience of 19 Hungarian cities, including Budapest and county capitals. The framework incorporates 41 parameters across environmental, social, and infrastructural dimensions, addressing significant gaps in existing resilience assessments by providing a region-specific, holistic evaluation. The research employs advanced statistical techniques, including principal component analysis and k-means clustering, to analyse the data sourced from the Hungarian Central Statistical Office and the National Adaptation Geo-Information System. This analysis revealed substantial variability in resilience scores among Hungarian county capitals, with Békéscsaba achieving the highest scores due to its extensive green infrastructure, renewable energy adoption, and lower proportion of vulnerable populations. In contrast, Budapest recorded one of the lowest scores, highlighting challenges such as limited green spaces, high population density, and elevated energy consumption. Clustering analysis grouped the cities into eight distinct categories, emphasising the role of geographic and climatic factors in shaping urban resilience. The findings demonstrate the critical importance of targeted interventions, such as expanding green infrastructure, improving energy efficiency, and enhancing sustainable practices. By offering actionable insights for policymakers, this index not only advances resilience research but also provides a replicable framework adaptable to other regions. Its innovative approach to integrating multidimensional parameters represents a significant contribution to the understanding and improvement of urban climate resilience in a changing world.

Open Access: Yes

DOI: 10.13044/j.sdewes.d13.0596