Camelia Betianu

• PhD, MSc
• Lecturer at Gheorghe Asachi Technical University of Iași

Given the current highest demand in history for raw materials, there is a growing demand for the recovery of key metals from secondary sources, in order to prevent metal depletion and to reduce the risk of toxic discharges into the environment. This paper focuses on the current nature-based solutions (i.e., biomining and bioleaching) applied to res...

Taking into account the significant health concerns generated by heavy metals, the assessment of lead exposure from foodstuff consumption is a representative topic in the evaluation of human health risk. Human exposure to lead is associated to numerous harmful effects, in particular, in children and pregnant women. The transfer of lead from soil an...

The potential of the model crop Brassica napus L. (rapeseed) for the phytoremediation of soils polluted with metals was investigated at laboratory scale. The first step consists in the evaluation of the seed germination and growth of the Brassica napus L. plant in a controlled environment, followed by the determination of the photosynthetic pigment...

For the protection of human and ecological receptors from the effects of soil pollution with chemical compounds, we need to know the behavior and transport of pollutants in soil. This work investigated the Congo red (CR) acid dye sorption on three natural soils collected from central and northeastern regions of Romania, symbolized as IS-65, IS-T, a...

This paper addresses the direct transfer of knowledge from university to manufacturing industrial sector, providing solutions to transform production/manufacturing waste into resources and closing loops in the process according to circular economy values. For this purpose, eco-innovation and eco-design were selected and discussed in order to be app...

The goal of this study was to evaluate the biosorption capacity of biomass of Phaseolus vulgaris L., as an effective material for the biosorption of organic azo dye Acid Orange 7 (AO7). The biosorption properties of the biomass were explored as a function of batch operating conditions including contact time, initial pollutant concentration and biom...

The main objectives of this study were to obtain data and assess the processes of transport and migration of organic pollutants in natural soils, in particular adsorption–desorption, in dynamic mode. The experiments were conducted to study the effects of some significant parameters such as soil column height, influent flow rate and initial concentr...

Adsorption of Pb(II) ions onto thermal activated lignin was studied in batch system in order to analyze the potential use of this material as low cost adsorbent for rapid and efficient removal of Pb(II) ions from accidentally polluted waters. The experiments were performed as a function of initial Pb(II) concentration and contact time under optimal...

In industrialized countries, soil and groundwater contamination with pesticides continues to be a contemporary problem. In this framework, the investigation of soil ability to immobilize these contaminants is of major concern, as a prerequisite for environmental remediation. In our study, the importance of sorption and persistence of pentachlorophe...

In industrialized countries, soil and groundwater contamination with pesticides continues to be a contemporary problem. In this framework, the investigation of soil ability to immobilize these contaminants is of major concern, as a prerequisite for environmental remediation. In our study, the importance of sorption and persistence of pentachlorophe...

The evaluation of the sorption/desorption processes of organic pollutants (OP) in different soil horizons is very important for understanding the fate, mobility and behaviour of these chemical species in soil, and provide useful data for assessing the potential environmental hazard associated with them. The purpose of this study was to investigate...

The quality of environmental components especially water and soil, is directly influenced by the presence of organic pollutants. Synthetic organic dyes are usually present in trace quantities in the treated effluents of many industries. These compounds generally have a low degradability in the environment, bioaccumulate in living organisms, bioconc...

Contaminated soils may be secondary sources of hazardous compounds in the environment. Therefore, in order to perform thorough risk assessments of contaminated sites the mobility of pollutants from the contaminated soils must be measured or estimated. The main objectives of this research were to obtain new data and assess the processes of sorption-...

Since the benefits of renewable polymers have to be evaluated in relation with the environmental aspects of production, in this study we have applied life cycle assessment (LCA) methodology to compare the environmental impacts generated, on the one hand, in the production process of bacteria-synthesized PHAs from wastewater with high value of bioch...

Bioplastics are biobased materials, usually easy biodegradable, derived from renewable resources. Evolution of bioplastics production is related to: bio starch and starch mixtures (74.5%); bioplastic products from fermentation (13%), bioplastic from petrochemicals materials (12.5%). They are seen as a viable solution to avoid some environmental imp...

The class of xanthene dyes has a complex chemical structure, which showed to be toxic for mixed culture of microorganisms (i.e. anaerobic granular sludge). Because of the unwanted effects of Erythrosin B (Ery B) on environmental components and some food confirmed previously, the dye was chosen in this study to evaluate its ecotoxicity. Also, the Er...

Environmental contamination with heavy metals and other pollutants hardly biodegradable, that threaten the ecosystems and human health, require increasing standards of pollutants detection and treatment. A number of methods have been developed for the removal of pollutants, especially heavy metals and dyes. Besides physical and chemical methods of...

The aim of this study was to investigate the Congo red sorption on soil from the region of Iasi (NE of Romania). The effects of contact time, temperature, sorbent dose and initial dye concentration on soi sorption were investigated. The results show that the amount adsorbed of Congo red on soil increase with increasing dye concentration, temperatur...

Contaminated soil and groundwater have been the subject of study and research, so that the field of remediation has grown and evolved, continually developing and adopting new technologies in attempts to improve the decontamination. The cleanup of environmental pollution involves a variety of techniques, ranging from simple biological processes to a...

The aim of this study was to investigate the Congo Red (CR) sorption behavior onto six soils from Ia?…?¸i area, with different characteristics. The rate of sorption of Congo red dye molecules from aqueous solution by soil was studied in batch conditions. The rate of sorption was very rapid in the first 5-10 minutes and reached a maximum in 20 minut...

The goal of the study was to investigate the sorption behavior of Acid Orange 7 (C.I. 15510) onto soil collected from Iasi area (Romania). The sorption isotherm, kinetic and thermodynamic studies were perfo rmed by batch mode. The effects of experimental parameters such as contact time, pH value (2-12) and temperature (20 - 40 0 C) have been studie...

The individual physical, chemical, and biological interactions that determine the exposure of plants and animals to chemicals associated with soils are of great importance in the assessment of contaminants bioavailability. Understanding of bioavailability processes is at last needed to improve the scientific basis of risk assessment and is the purp...

The paper analyses some aspects concerning the Life Cycle Assessment as a tool for assessing the comprehensive environmental impacts of products, processes and activities within environmental management and decision making process. A special emphasis has been paid to pesticides impacts, risks and toxicity for environment and human health. Pesticide...

This paper first reviews the different forms of Cr present in the environment as a function of environmental conditions. There are also discussed the transport and fate of Cr(VI) as well as other forms of Cr in the environment, most notably Cr(III). These forms or species of Cr are inevitably linked by many environmental transport and fate processe...

Considering that the fate and behaviour of contaminants within the environment is an extremely complex issue, this paper analyzes the development of predictive models which can contri bute to the understanding of the release of a contaminant. Different types of models concerning the at mospheric transport of POPs are examined, taking into considera...

BACKGROUND: Heterogeneous photocatalysis is influenced by a number of parameters involving synergistic effects; hence, an experimental strategy design that considers interactions between the main variables is needed. The response surface methodology was applied for the investigation of photodegradation of 20 mg L−1 Orange II in aqueous solutions an...

An artificial neuronal network (ANN) was developed for predicting the color removal efficiency of the TiO2 assisted photodegradation of the cationic dye Alcian Blue 8 GX. The data used for neural network modeling have been obtained by performing experiments in a batch photocatalytic reactor at laboratory scale. The selected input variables of the n...

In this paper, the application of the heterogeneous photocatalysis in degradation of a cationic copper phtalocyanine dye, used as model of persistent organic compound is investigated by assessing the efficiency of the process. The influence of hydrogen peroxide on the photocatalytic process is studied using two types of cominercial catalysts, such...

This work presents the state of the art of qualitative and quantitative risk assessment methodologies in a variety of fields. Because risk exists in all ranges of human activity, both private and professional, risk assessment is an attempt to analyze precipitating causes of risk in order to more efficiently reduce its probability and effects. Numer...

In this paper, the application of the heterogeneous photocatalysis in degradation of a cationic copper phtalocyanine dye, used as model of persistent organic compound is investigated by assessing the efficiency of the process. The influence of hydrogen peroxide on the photocatalytic process is studied using two types of commercial catalysts, such a...

This work presents the state of the art of qualitative and quantitative risk assessment methodologies in a variety of fields. Because risk exists in all ranges of human activity, both private and professional, risk assessment is an attempt to analyze precipitating causes of risk in order to more efficiently reduce its probability and effects. Numer...

Heavy metals can be transported by rivers which flow through areas with industrial pollution, both as metal in solution and metal adsorbed to suspended solids. They can settle in lakes and accumulate in the sediment, exhibiting significant effects on wildlife and humans if they enter into the food chain. In this work, heavy metals transport and sed...

Present time is marked with growing attention to environmental issues of persistent organic pollutants (POPs). POPs are defined as compounds with high toxicity, persistence in environment, ability to migration in food chains and high bioaccumulation potential. Most recent international agreement for POPs is the Stockholm Convention. The Stockholm C...

Persistent organic pollutants (POPs) are chemical substances that persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effects to human health and the environment. This group of priority pollutants consists of pesticides, industrial chemicals and unintentional by-products of industrial processes. Synthe...

Small communities are generating increased volumes of wastewater which require adequate management practices and system. The wastewater management planning process is the process whereby current and future wastewater needs are evaluated, wastewater management alternatives are developed which will meet these needs, and a final plan is chosen through...

Persistent organic pollutants (POPs) are organic compounds that, to a varying degree, resist to photolytic, biological and chemical degradation. POPs are often halogenated and characterized by low water solubility and high lipid solubility. They are also semi-volatile, enabling them to move long distances in the atmosphere before deposition occurs....

Widespread contamination of soil and groundwater by synthetic organic chemicals (e.g., dyes) has been recognized as an issue of growing importance in recent years. For this reason, is very important to elucidate the fate and transport pathways of these compounds in environmental components. The behavior and persistence of dyes depend on their sorpt...