Audrone Zukauskaite

• PhD
• Senior Researcher at Klaipėda University

The efficiency of employing a multifactorial approach to enhance the nonthermal plasma (NTP) chemical conversion of solid waste food packaging materials into liquid petroleum hydrocarbons was assessed for the first time in this study. The researchers adopted a hybrid approach which integrated the zero-dimensional (0-D) and response surface model (R...

This study solved a set of equations to verify the dynamic optimal conditions of nonthermal plasma (NTP)-chemical conversion of solid polyolefin wastes into liquid petroleum hydrocarbons. Furthermore, a novel optimisation model was validated with non-linear experimental conditions to assess the quantitative relationship between the process variable...

Pyrolysis is an excellent method for recovering mixed and contaminated plastics that are no longer recyclable. Special attention must be paid to the stability of the fuel to avoid the formation of undesirable products. This can be achieved by additives such as antioxidants. In this study, high-density polyethylene, polypropylene, and polystyrene pl...

In this preliminary research investigation, we introduce a multifactorial approach aimed at optimising the biochemical remediation of petroleum hydrocarbon (PH) polluted soil. The development of these optimisations was determined after solving the equation set. Moreover, we specified the quantitative correlation between the soil treatment aspects a...

Plastics are widely used and are part of modern life. Recycling of plastic waste can be achieved by pyrolysis. Conventional pyrolysis of plastic waste takes place at temperatures higher than 450 °C, because the oil yield is higher. In this study, we examined if an initiator for radical reactions can achieve the conventional pyrolysis of HDPE and PP...

In this study, polypropylene (PP) was recycled in a non-stirred batch reactor by slow pyrolysis at low temperature. Virgin PP and waste PP as well as mixed material of equal amounts of virgin PP plus virgin PP pyrolysis oil (ratio 1:1 w/w) were used as raw material. The highest yields of liquid product were obtained at 350°C and 400°C (82.0 and 82....

The slow pyrolysis of macroalgae at moderate temperatures in the reactor used resulted in an oil with a slightly better calorific value than that of the literature, but the other properties were not convincing. Therefore, co-pyrolysis with HDPE offers a way out in this study. However, this did not improve the property profile as a fuel, as the co-p...

The use of pyrolysis oil can be seen as an alternative fuel for maritime transport. However, pyrolysis oil from tires must be desulfurized for this. Recently, this can be done by hydrodynamic cavitation. This process does not require oxidation chemicals but only water, a cavitation generator, and a pump to drive it. In the literature, this concept...

The most intensive traffic in the world is going in the Baltic Sea. Consequences of intensive navigation are illegal or accidental oil spills. Following a spill, the soluble fraction of polycyclic aromatic hydrocarbons (PAH) is rapidly released into the water column. These remain dissolved in seawater over an extended period of time, even should th...

Background: Oil spills can cause severe damage within a marine ecosystem. Following a spill, the soluble fraction of polycyclic aromatic hydrocarbons is rapidly released into the water column. These remain dissolved in seawater over an extended period of time, even should the insoluble fraction be removed. The vertical distribution of the aromatic...

Gaminant fosforo rūgštį susidaro fosfogipso (PG) atliekų, kurių susidarymo išvengti neįmanoma, todėl nuolat ieškoma būdų, kaip būtų galima PG panaudoti. Fosfogipsas gali būti pritaikomas statybinių rišamųjų medžiagų gamyboje, tačiau ieškoma ir naujų pritaikymo sričių, pavyzdžiui, iš fosfogipso gali būti sintetinamas hidroksiapatitas. Hidroksiapatit...

Acid precipitation accelerates acidification process in the soil and facilitates nutrient leaching. The study aimed to explore the effects of long-term liming on aluminium (Al) leaching by comparing a limed soil with an unlimed soil at different acidity (pH) levels of simulated acid rain (SAR). The columns of unlimed and limed soil were watered wit...

Corrigendum: The effect of over 50 years of liming on soil aluminium forms in a Retisol - Z. Kryzevicius, D. Karcauskiene, E. Álvarez-Rodríguez, A. Zukauskaite, A. Slepetiene, J. Volungevicius

The aim of the current study was to evaluate the effect of long-term (56 years) liming on changes in soil pH and aluminium (Al) forms in the soil profile compared with an unlimed soil in a sandy moraine loam of a Dystric Glossic Retisol. Long-term liming had a significant influence on soil acidity of the whole profile, causing increased pH values i...

The remediation technologies of soils contaminated with petroleum products are developed in two main directions: the first one encompasses searching for new effective bioagents and the other one explores the ways to activate those microorganisms present in the soil that are capable of degrading oil. The objective of this research was to determine i...

Wood processing by-products such as bark of different wood species and hydrolysis lignin were applied as soil mulch. The lignin-based soil conditioner (LSC) representing a lignin-based polyelectrolyte complex with the different composition (a lignin/polymer mass ratio) was obtained under laboratory conditions and was intended to protect sandy soil...

The paper presents the data of gaseous and alkali elements in above-ground biomass of energy crops. The investigations objects were Phalaris arundinacea L., Populus nigra, Artemisia vulgaris, Sylphium perfoliatum, Sida hermaphrodita, Dactylis glomerata, Salix viminalis, Medicago sativia L. The aim of the research: to evaluate the amount of chemical...

Bioremediation is one of the most efficient and widely applied methods of biotechnology, which also plays an important role in cleaning the environment from pollution by oil and oil products as well as rehabilitating the soil. Time is a limiting factor which prevents the effective use of biological treatment method, since the biodegradation of oil...

The aim of the presented research was to assess the NOx emission and dispersion from marine ships in Klaipeda sea port. NOx emissions from ships operating in Klaipeda sea port were calculated using the Lloyd's Register detailed ship movement method, after collecting the information about technical characteristics of each marine ship visiting the po...

An article presents an environmental analysis of a number of welding processes taking place during the ship hull repair. These processes include manual metal arc welding, submerged arc welding, metal active gas welding, and flux cored arc welding. Listed processes are modelled in terms of their environmental impact. Life cycle of ship hull is devel...

The current study is aimed to determine how sewage sludge may impact the biodegradation activity of soil contaminated with oil products and what groups of microorganisms are most active in it. Bathihypogleyi-Dystric Albeluvisol (ABd-gld-w) with a texture of sandy loam was selected for laboratory tests. The soil was contaminated with heavy fuel oil...

Many modern technologies for treatment of soil polluted with oil products are developed through creation of new and efficient bio-agents that help to degrade oil products. Another trend in development of new technologies aims to speed up the growth of soil microorganisms, this way accelerating biodegradation of oil products without the help of intr...

The present paper deals with an important environmental issue: air pollution with volatile organic compounds (VOCs) in oil terminals. In attempt to determine the dependence of VOCs concentration in the air on the wind speed and oil loading intensity analyses were carried out during shorter time intervals, when the fluctuations of ambient temperatur...

It has been shown that the found regularities of the interaction between lignosulfonate and polymeric cations in aqueous media can serve as a scientific basis for chemical modification of lignin by way of the formation of the interpolyelectrolyte complexes. This energy-saving and non-complicated method of modification was applied for obtaining new...

Oil products continue to be used as a principal source of energy. Wide-scale production, transport, global use and disposal of petroleum have made them major contaminants in prevalence and quantity in the environment. In accidental spills, actions are taken to remove or remediate or recover the contaminants immediately, especially if they occur in...

Many technologies in nowadays create new and effective bioagents for organic pollutions biodegradation. Some of them look for the methods to accelerate the natural processes. The degradation of diesel fuel and black oil using microbial communities in soil enriched by different valences Mn is investigated. The impact of MnSO 4 and KMnO 4 on a microb...

Multi-step technological system, intended for soil erosion prevention, has set the following tasks: to choose suitable plants for "green-carpet" formation, to prepare fitting substrate, to assess environmental impact and biodegradation abilities of substrates. Selection of proper plants (Thymus vulgaris, Gypsophila paniculata and Festuca rubra) per...

The lignosulphonate/polymer complex, in which the macromolecules of both components are linked together by physico-chemical bonds, has been applied as a new effective lignin-based soil conditioner (LSC). lt has an adhesive affinity both for mineral soil particles and the organic surface of lignocellulosic mulch. The modification of the mulch partic...

The object of this study was to show the diffuse pollution sources contribution to nutrients loss from river's catchment. The Akmena-Dane catchment was chosen as the example of the West Lithuanian river basin. The nutrients losses through land use of the river's watershed were estimated. Diffuse pollution sources of nitrogen and phosphorus were tes...

59 One of the main stages in the research of erosion prevention technologies is to determine the expedience of the substrate to the plants. The next equally important stage is to study substrate biodegradation. The investigation of substrates fell on the middle of the summer time. The coast sand and sand-ground samples were put into 10 l buckets. A...

The problem of hydrolysed lignin waste utilisation is studied, with proposing to use it for sand and light soil erosion prevention. For this purpose, a system using a different thickness of lignin layers with a polymer conditioner was created. Vegetative covering was formed in the upper layer. Soil and drainage water impact on waste was evaluated....