Abstract A crucial stage which makes the other directions of development of membrane processes is getting new membrane materials, to meet increasingly stringent of selectivity and productivity. Polyetheretherketone shows high stability against chemical and physical agents but is poorly soluble in most common solvents. Present studies on obtaining the support of the polyetheretherketone membranes were limited by: solubility of polyetheretherketone in concentrated sulfuric acid and fast speed a...
Autori: Mihaela Emanuela Craciun, Aurelia Cristina Nechifor, Florin Aldea, Gheorghe Nechifor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25475

Abstract This paper presents some optical and microphysical properties of aerosols measured over the Cluj-Napoca city, at the Faculty of Environmental Science and Engineering, Babeş-Bolyai University. This site is part of the Romanian Atmospheric 3D Research Observatory (RADO) and the Aerosol Robotic Network (NASA-AERONET) and is equipped with the only sun and sky tracking radiometer (Cimel CE 318A sun-photometer) in Transylvania. By analyzing Direct Sun measurements like Aero...
Autori: Nicolae Ajtai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26105

Abstract The Bio.Lea.R project aims to demonstrate the performance of a landfill for less reactive, biologically treated waste (pretreated organic wastes) compared to a conventionally managed landfill, with regard to both environmental (biogas and leachate production) and economic aspects. The objective is to control the pretreated biodegradable waste through a liquid injection in order to achieve the same biogas quantity in a shorter time than in conventional landfill. Laboratory and full ...
Autori: Alberto Godio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26784

Turfy soil is a special soil formed in the swamp environment with the incomplete decomposition of plant residue. On one hand, the special engineering geological properties of turfy soil such as high compressibility, high moisture content, high void ratio, will cause great difficulty with engineering construction in turfy soil area, this study will make it clear of parameters value for engineering design. Turfy soil, on the other hand, is a part of the wetland, the essence of protection of the...
Autori: Lei Nie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27445

This present study, investigates the performance of activated sardine scale powder (ASSP)/ Cellulose acetate (CA)/Polyvinylpyrrolidone (PVP) and powdered activated carbon (PAC)/ Cellulose acetate (CA) / Polyvinylpyrrolidone (PVP) composites membranes prepared by phase inversion for the elimination of humic substances (HS) from aqueous solutions. The materials and composites membranes were characterized by FTIR, XRD, SEM analyses. Overall, the results exhibit the higher performance of ASSP /CA/ P...
Autori: Naziha Sid-Sahtout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28199