Abstract The evolution of the request in wood production leads to larger stem wood consumption, intensive harvesting and consequently the environmental impact increases. One of the most ignored secondary resources in spite of limited reserves, branch wood could be used in new added value products as an alternative to stem wood, providing its characteristics are known and understood. This paper is part of a larger research project, which here compares the compression strength parallel to the g...
Autori: Lidia Gurau, Marina Cionca, Cristina Timar, Alin Olarescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25492

Abstract The paper briefly presents the principle, methodology basics and the research opportunities offered by a modified L-joint test for a complex in-field evaluation of wood behaviour in outdoor above ground exposure, corresponding to the biological use class 3. A comprehensive and detailed examination of the tested samples, looking not only to the biological degradation of wood but also to wood cracking and coating performance (cracking, flaking, exfoliation, adherence), was performed an...
Autori: Maria Cristina Timar, Emanuela Beldean, Mihaela Porojan, Lidia Gurau
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25494

Abstract:Our research was focused on developing some new procedures to reduce the biodegradable wastes by composting. The aim of thisstudy was to obtain and asses at laboratory scale the maturity of three compost samples of different proportion of vegetable waste,beech sawdust and sewage sludge by analyzing their FT-IR spectra and C/N ratio. The composting process was monitored by testsperformed weekly on the three samples in order to investigate the physical parameters (pH and electroconductivi...
Autori: Anca Sauciuc, Claudia Zaha, Ileana Manciulea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25772

Among the different types of waste products tested, the bark of different Pinus species have been identified as a promising class of low- cost sorbents for heavy metal binding. In this context, the potential of Romanian pine bark wastes as green and economical sorbent for cadmium (II) ions removal from aqueous solutions has been tested in batch conditions as function of initial pH, contact time, sorbent dose, metal ion concentration and temperature. The equilibrium data at three different temper...
Autori: Anca Miron, Brindusa Robu, Carmen Paduraru, Lavinia Tofan, Roxana Laura Mihailescu Amalinei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25871

AbstractThe aim of this study was to evaluate the effect of polyphenolic extract and deuterium depleted water (DDW) as bioregulators inmaize (Zea mays L.) plant cultivation. The aqueous extract obtained from spruce bark (two levels of concentration), pure DDWand DDW in combination with spruce extract were used. The test solutions were applied by spraying and the maize plant growthand alelopatic effect on the development were studied. The following specific plants parameters were monitored: growt...
Autori: Corneliu Tănase, Irina Volf, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26012

• STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER    • ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS    • LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA    • A CLEAR SKY IRRADIATION ASSESSMENT USING THE ESRA MODEL AND SRTM DATABASE    • ENVIRONMENTAL FACTORS ASSOCIATED WITH DYSPHONIA IN PROFESSIONAL VOICE USERS    ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26014

AbstractThe main purpose of the present work was to evaluate the potential of plum (P. domestica L.) tree bark (PDB) to remove Cr(VI)and total chromium from aqueous solutions in batch systems. Experimental data showed that the Cr(VI) and total chromiumremoval capacity was dependent on operating variables such as PDB particle size, PDB pretreatment, solution pH, initial Cr(VI)concentration, and contact time. The mechanism of Cr(VI) removal by PDB implies two simultaneous processes: 1) the reducti...
Autori: Perla Vianey Lopez-Nuńez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26464

Abstract Supercritical fluid and ultrasound assisted extractions were applied as a first step in a complex processing of spruce bark in order to recover polyphenols compounds. The aim of the study was to compare the efficiency of these "green" processes with a conventional extraction technique (ethanolic extraction). Supercritical fluid extraction was carried out in two steps: (i) static extraction for 15 min at 1000 psi with pure CO2 and (ii) dynamic extraction for 45 min at 35, 4...
Autori: Adina Iulia Talmaciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26680

The paper presents a general description of the need to use wooden biomass resulted from Osier willow and beech. This wooden biomass represents a renewable energy source and some new directions in scientific research field could be opened. The paper mainly describes a parallel between the energy resulted from these two types of biomass, namely from Salix viminalis L. and Fagus sylvatica L. species, in order to obtain the best solution between them. Growth crop of this new specie of Osier sali...
Autori: Tatiana Grîu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26964

The arsenic removal from aqueous medium was investigated through adsorption by employing finely powdered bark of Pinus roxburghii Sarg. The batch mode laboratory scale experiments were conducted to investigate the removal efficiency of Pinus bark against total arsenic and the effect of pH, contact time, adsorbent dose and initial adsorbate concentration on adsorption to optimize the process. Langmuir and Freundlich isotherms were used to validate the adsorption data and respective constants w...
Autori: Syed Hasnain Shah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27013

In this article we present the results of the study concerning the relationship between the concentration of trace elements (lead, chromium, cadmium, cobalt, copper, zinc and nickel) in soil and in the leaves and bark of Populus nigra L. The samples were collected in the period May 2010 – October 2010 in two areas from the Romanian North Littoral of Black Sea. The concentrations of the trace elements in soil, leaves and bark were determined using Flame Atomic Absorption Spectrometry (F...
Autori: Lucica Barbeş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27239

The paper presents some aspects regarding the use of certain bark biomass as sustainable and renewable fuel. The main bark uses are listed exhaustively, emphasizing the fact that they are parts of the forestry biomass. The main problems arising from the ecological burning of bark are highlighted, namely the amount of ash and the resulting gases, especially carbon dioxide, but the emphasis is placed on the amount of heat and ash that bark produces during combustion. Accordingly, the high and low ...
Autori: Aurel Lunguleasa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27288

The paper aims to present the sorption properties of two sorbent substrates (composts) prepared by aerobic fermentation from vegetables waste composted with beech sawdust (BR2) and beech ash (BC1) to be used for Cu2+ removal from wastewaters. The composts structures and surface properties were characterised in terms of active groups (FTIR), crystallinity (XRD), morphology (SEM), topography (AFM) and specific surface and pores analysis (BET), and the changes in properties after Cu2+ sorption were...
Autori: Ileana Manciulea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27323

The objective of this study was to develop a naturally dyeing process of 70% wool /30% Angora mohair blended yarns by using bio-mordants as an environmentally friendly alternative for the conventional metallic salts. Bio-mordanting operation was achieved by using of condensed tannin extract from quebracho bark trees. Conventional mordanting has been performed using the conventional mordants like copper sulphate and tin chloride. Another specific objective of this study was to investigate the pos...
Autori: Ioana Stanculescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27337

The research was conducted in a spruce stand with disseminated beech and larch trees from the Carpathian Mountains, where thinning operations had taken place. The CTL (Cut-To-Length) system was applied by using harvester and forwarder. The research was aimed at determining the amount of damage to trees, identifying the damage types, their frequency, extent, form and distribution at the level of trees and at the level of the entire stand. Thus, 7.5 % of remaining trees were damaged with the am...
Autori: Vasile Răzvan Câmpu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27434

Timber harvesting and log extraction with conventional ground-based skidding systems in steep, mountainous terrain often results in severe damage to residual stands and forest sites. In this study, the impact of rubber-tired skidders on standing trees along sides of the trails was investigated 5 to 20 years post-harvest in terms of frequency and development of decay at the points of wounding. The study was located in the Hyrcanian mountainous forests of Iran. All standing beech trees (healthy or...
Autori: Davoud Kartoolinejad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27457

The study provides information about separation and identification of natural bioactive compounds from beech (Fagus sylvatica L.) bark with potential therapeutic applications such as antibacterial activity against human pathogens. Beech is a common material used in the wood industry, but its bark is separated from the wood and is considered a by-product. In this study, natural compounds with biological activity were obtained from beech bark by hot water extraction. The high-performance liquid ch...
Autori: Corneliu Tănase
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27561

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27577

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27576

According to EU Strategy for the Baltic Sea Region, Lithuania obligates to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainab...
Autori: László Gyenge
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27578

According to EU Strategy for the Baltic Sea Region, Lithuania has to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainable dev...
Autori: Jolanta Dvarionienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27583

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27782

This paper aims to compare the adsorption performance of activated carbon and pine bark for iron and manganese removal from contaminated groundwater. Moreover, their environmental compatibility was checked for their possible use as reactive media in a permeable reactive barrier for in situ remediation. Batch tests were carried out with different iron and manganese concentrations and different particle-size distributions, in order to evaluate the effectiveness of the activated carbon and pine bar...
Autori: Silvia Sbaffoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27779

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27729

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27730

Debris from deciduous trees in the form of park green waste was investigated as a potential biosorbent for the removal of chlorinated solvents from water. The sorption properties of beech leaves and cupules, oak leaves and acorns, birch leaves and lime leaves (all tree species common for a moderate climate) in a non-modified form were investigated with regard to the removal of perchloroethylene, 1,1,2-trichloroethane and 1,1,1,2-tetrachlorothane. The preliminary results showed that these biosorb...
Autori: Marek Tobiszewski
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27760

In Spain, most substrates used in the production of plants in containers, are composed of peat in combination with other components such as pine bark, perlite or vermiculite. In order to find alternatives to the use of peat, shredded switchgrass (Panicum virgatum L.) biomass was evaluated as a component of the substrates. Five substrates were prepared with the following proportions, by volume, of commercial substrates:switchgrass: 100/0, 75/25, 50/50, 25/75 and 0/100. Pots were filled with the ...
Autori: Jose Alberto Oliveira Prendes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28134