ecoterra online Ro | En
Editorial board

Instructions for authors
 
Current number
Number 1(1-2)/2004
Number 1(3)/2004
Number 2(4)/2005
Number 2(5)/2005
Number 2(6)/2005
Number 2(7)/2005
Number 3(9)/2006
Number 3(11)/2006
Number 3(8)/2006
Number 3(10)/2006
Number 4(13)/2007
Number 4(12)/2007
Number 4(15)/2007
Number 4(14)/2007
Number 5(18)/2008
Number 5(16)/2008
Number 5(17)/2008
Number 5(19)/2008
Number 6(20)/2009
Number 6(21)/2009
Number 6(22-23)/2009
Number 7(25)/2010
Number 7(24)/2010
Number 8(26)/2011
Number 8(27)/2011
Number 8(28)/2011
Number 8(29)/2011
Number 9(33)/2012
Number 9(32)/2012
Number 9(31)/2012
Number 9(30)/2012
Number 10(34)/2013
Number 10(36)/2013
Number 10(35)/2013
Number 10(37)/2013
Number 11(4)/2014
Number 11(3)/2014
Number 11(2)/2014
Number 11(1)/2014
Number 12(1)/2015
Number 12(2)/2015
Number 12(3)/2015
Number 12(4)/2015
Number 13(4)/2016
Number 13(3)/2016
Number 13(2)/2016
Number 13(1)/2016
Number 14(1)/2017
Numberl 14(2)/2017
Number 14(3)/2017
Number 14(4)/2017
Number 15(4)/2018
Number 15(3)/2018
Number 15(2)/2018
Number 15(1)/2018
Number 16(1)/2019
Number 16(2)/2019
Number 16(3)/2019

FIRST PAGE ECOTERRA NUMBER 16(2)/2019


Ecoterra, 2019, 16(2):1-2
IN MEMORIAM DR. NICOLAIE HEREDEA
IN MEMORIAM DR. NICOLAIE HEREDEA

Alexandru Ozunu
„Babes-Bolyai” University, Cluj-Napoca
Simona Varvara
„1 Decembrie 1918” University of Alba Iulia
Ramiro Sofronie
UNESCO Chair # 177
Ramiro Sofronie, Ramiro Sofronie
UNESCO Chair 177
Ramiro Sofronie
UNESCO Chair # 177

Dr. Nicolaie Heredea was born on March 29th, 1948 in Alba Iulia, where he got the primary and secondary education.
In 1966 he became an undergraduate student in geophysical engineering at the Faculty of Technical Geology from the Institute of Oil, Gas and Geology in Bucharest, where he graduated with a MSc degree in 1971.
During his professional career as a researcher at the Institute of Geology and Geophysics in Bucharest, he has been involved in applied scientific research and complex geological and geophysical research, bringing valuable contributions in the fields of nuclear geophysics and geology.  
After 1989 he devoted himself to the environmental protection activities, being one of the first geophysical specialists in this field in Romania. He was involved in the development and promotion of environmental policies, environmental education and management.
He left this world unexpectedly in the days when one of his important contributions in the field of environmental protection, the book entitled "For a better understanding of environmental protection" was published at the prestigious Lambert Publishing House of the Lambert Academic Publishing Foundation.


Ecoterra, 2019, 16(2):5-10
SOLUBLE POTASSIUM SALTS OF HUMIC ACIDS AS WASHING AGENT FOR LEAD AND COPPER POLLUTED SOILS
SOLUBLE POTASSIUM SALTS OF HUMIC ACIDS AS WASHING AGENT FOR LEAD AND COPPER POLLUTED SOILS

Gianina Elena Damian, Valer Micle, Ioana Monica Sur
Technical University of Cluj-Napoca, Faculty of Materials and Environmental Engineering, Department of Environmental Engineering and Sustainable Development Entrepreneurship, Cluj-Napoca, Romania

Numerous washing agents were investigated for remediation of heavy metal polluted soils (e.g. HCl, HNO3, organic acids, salts, EDTA, surfactants). However, in spite of their proved capacity to extract heavy metals from polluted soils, they are environmentally problematic. Therefore, a soluble commercial sample of a naturally occurring organic compound (i.e. potassium salt of humic acids extracted from Leonardite coal) was tested as a possible substitute. Preliminary extraction experiments were conducted, at laboratory scale, on 5 g real polluted soil samples in a 100 mL capacity beaker. The polluted soil was stirred for 8 and 10 hours with a washing solution containing 2% and 5% soluble potassium salts of humic acids at a solid/liquid (S/L) ratio of 1:8 (g:mL) in an orbital oscillating-rotating stirrer. In investigated experimental conditions, soluble potassium salts of humic acids extracted up to 74% copper (Cu) and 75% lead (Pb) indicating the potential of soluble potassium salts of humic acids to become a possible alternative washing agent for soil remediation and to circumvent the disadvantages of synthetic chemicals generally used in soil washing technology.


Ecoterra, 2019, 16(2):11-16
POTENTIAL OCCURRENCE OF ALKALINE WATERS IN OPHIOLITES FROM BANAT AND APUSENI MOUNTAINS (WESTERN ROMANIA)
POTENTIAL OCCURRENCE OF ALKALINE WATERS IN OPHIOLITES FROM BANAT AND APUSENI MOUNTAINS (WESTERN ROMANIA)

Alin-Marius Nicula, Călin Baciu
Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Cluj-Napoca, Romania

The basic and ultrabasic rocks included in the ophiolitic massifs may strongly influence the chemical features of waters, that may become alkaline (pH higher than 8), or even hyperalkaline, with pH above 10. The present contribution emphasizes the theoretical framework on the possible presence and distribution of alkaline waters in some ophiolitic areas from Romania. Field investigations have been performed in Almăj Moutains (Tișovița area), where alkaline waters with pH around 9 have been found in several springs. The predominant hydrochemical type in the investigated water sources is Mg-HCO3. The current contribution also aims to preliminary assess the potential of the Southern Apuseni Mountains region to yield alkaline waters, taking into account that a significant part of this unit consists of ophiolitic rocks covering more than 1000 km2. The area of interest overlaps numerous areas included in Natura 2000 network, condition that may also provide better protection for the potential water sources.


Ecoterra, 2019, 16(2):17-28
POTENTIAL OF PLANTS FOR THE BIOREMEDIATION OF SOILS CONTAMINATED WITH PERSISTENT POLLUTANTS
POTENTIAL OF PLANTS FOR THE BIOREMEDIATION OF SOILS CONTAMINATED WITH PERSISTENT POLLUTANTS

Mariana Minuț, Mihaela Roșca, Petronela Cozma, Maria Gavrilescu
“Gheorghe Asachi” Technical University of Iasi, “Cristofor Simionescu” Faculty of Chemical Engineering and Environmental Protection, Department of Environmental Engineering and Management, Iasi, Romania

Excessive or improper use of synthetic chemical compounds caused serious environmental problems and led to increased adverse effects on the terrestrial/aquatic ecosystem and on human health. Various anthropogenic activities have a negative influence on the environmental components by releasing solid, liquid and gaseous wastes, which contain different pollutants such as heavy metals, cyanides, petroleum hydrocarbons, hydrocarbons (polycyclic aromatic, halogenated), pesticides. The paper addresses the removal of some pollutants from the environment, namely persistent organic and inorganic pollutants by bioremediation, exploiting the ability of plants to bioaccumulate contaminants from environment. The work includes several considerations on environmental pollution with persistent pollutants, with particular emphasis on persistent organic and inorganic pollutants in European context. Further, some concern address the decontamination of soils polluted with persistent contaminants, which encompass a diversity of techniques, from simple processes to advanced engineering technologies. Since in recent years the biological methods have been taken into account being easier to implement comparative to other, conventional cleaning up methods, we discussed phytoremediation for soil cleaning up, contaminated with heavy metals or persistent organic pollutants. A special emphasis is placed on contaminants phytotoxicity and plants tolerance.


Ecoterra, 2019, 16(2):29-38
STUDY ON THE POSSIBILITY OF OBTAINING HIGHER LEVELS OF ENERGY EFFICIENCY USING NATURAL MATERIALS
STUDY ON THE POSSIBILITY OF OBTAINING HIGHER LEVELS OF ENERGY EFFICIENCY USING NATURAL MATERIALS

Marian Pruteanu, Fabian Tiba, Nadejda Calancea, Laura Cozmiuc
Faculty of Civil Engineering and Building Services, “Gheorghe Asachi” Technical University of Iasi, Iasi, Romania

The project aims to explore the possibility of implementing the passive house concept using natural materials, but also using modern technologies (solar panels) to achieve the desired energy efficiency while trying to reduce costs as much as possible. Climate changes, observed worldwide, are caused mostly by the impact of human activities. Nowadays, it is necessary to adopt solutions to considerably reduce the carbon footprint. In the field of civil engineering, the negative impact on the environment is generated by both the energy consumption required for building constructions and the energy consumption required to operate them. Therefore, the ideal execution solutions are buildings with high energy efficiency levels and low embodied energy. This also means constructing energy-efficient buildings, have minimum values. The paper presents a study meant to determine the maximum energy efficiency level that a residential building can achieve using as much as possible natural materials. Thereby, a case study was realised regarding energy efficiency, with the modelling of thermal bridges in the RDM 6 pro software. Determination of the annual heat ratio is made based on the simplified method presented by C107 – 2005 Norm, respectively by using the value of the global thermal insulation coefficient „G”. Also, for the calculus of the R-value, thermal proprieties of the materials used in the study are extracted from the C107 Norm and published literature. In the end, several conclusions and recommendations are pointed out in order to complete technical solutions to reach the level of passive house.


Ecoterra, 2019, 16(2):39-45
ASPECTS OF THE SOCIAL AND ECONOMIC EVOLUTION OF THE GLOBALIZED SOCIETY
ASPECTS OF THE SOCIAL AND ECONOMIC EVOLUTION OF THE GLOBALIZED SOCIETY

Dan Constantinescu
University POLITEHNICA of Bucharest, Faculty: Material’s Science and Engineering, Department Materials Processing and Eco-metallurgy, Bucharest, Romania

The present paper analyses a global social-economic dynamic model regarding the momentum of the technical economic development. The evolution of the natural resources used for the industries and the agriculture strongly influences the globalized society. In the same time, the evolution of the population as number of individuals as well as the life quality, determinate many aspects of society. The article refers to a possible model of the “global society”, considering zones at different level of development. It is also necessary to consider the aspects of the “ecological footprint”. Analysing this aspects, a structure of a model can be proposed. A parameterization of the model is also possible. The conclusions in the present article are obtained from the analysis of the technical and economical evolution, as well as the evolution of the environment.


Ecoterra, 2019, 16(2):3-4
NICOLAIE HEREDEA, IN MEMORIAM
NICOLAIE HEREDEA, IN MEMORIAM

Ramiro Sofronie
UNESCO Chair 77

The idea of ​​commemorating Nicu Heredea now, when his memory is still alive, denotes the spirit of appreciation of the values ​​that reigns in SNSIM. Nicu Heredea was a personality who distinguished himself by the aspirations in which we found ourselves as his supporters, but also a sincere, open, enthusiastic and extremely reliable colleague, whose absence has greatly affected us. A few years ago, I showed Nicu in Hawking’s 2001 book the graph of the demographic explosion accompanied by comments on the dramatic consequences. Suddenly Nicu blushed and he murmured that maybe we will not live those times. In his solid optimism he thought, of course, that such events will never take place on Earth.


Copyright © Icpe Bistrita