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Rezultatele pentru almond shellRezultate gasite: 20
Preparation and characterization of sodium alginatechitosan microparticles for controlled release of ibuprofen in a sustainable way
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The preparation of microspheres containing chitosan, sodium alginate and ibuprofen and the pH dependent drug release were investigated. The microspheres were prepared by two experimental routes: the first one starting with a chitosan/ibuprofen core subsequently coated by an alginate shell (S1) and the second one based on an alginate/ibuprofen core, later coated by a chitosan layer (S2). The physical-chemical characterization was done by using Dynamic Light Scattering (DLS), Atomic Fo... Autori: Luminiţa Elena Balău, Nicolae Aelenei, Marcel Ionel Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25412
Using of industrial waste materials for textile wastewater treatment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Sorption is one of the several methods that have been successfully utilized for dyes removal. A large number of materials have been used as suitable sorbents for decolourization of industrial effluents: activated carbon (the most common but expensive adsorbent), polymeric resins, various low-cost adsorbents (agricultural and industrial by-products, peat, chitin, silica, bentonite, other clays, fly ash).
Our paper is a review about our researches regarding different types of industri... Autori: Daniela Suteu, Carmen Zaharia, Augustin Muresan, Rodica Muresan, Alina Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25532
New carbonic adsorbents for industrial sorting purification in vodka production
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Modern requirements for activated carbons utilized in the refinement of water/alcohol mixtures are discussed. It is demonstrated that activated carbons obtained from coconut shells and apricot and peach stones are very similar in terms of durability, physicalchemical and adsorptive properties, providing high quality sorting. Utilization of novel stone-derived carbons allows 2,5 fold enhancement of filtration rate, as well as 3 fold enhancement of working resource of carbon columns.
... Autori: Viktor Mihailovici Mukhin, Natalia Alexandrovna Shubina, Irina Mihailovna Abramova, Inna Dmitrevna Zubova, Tudor Grigore Lupascu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25543
INVESTIGATION OF ISOTHERMAL AND FIXED-BED COLUMN SORPTION OF Cu (II) ONTO ALMOND SHELL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe present study reports the efficiency of almond shell as a cheap and available material for the removal of Cu (II) fromcontaminated aqueous solutions. The equilibrium experiments indicated that Cu (II) sorption obeyed the Langmuir isotherm at26, 40 and 55oC. The highest value of the maximum uptake (Qo) from the Langmuir equation was found 6.783 mg g-1 at 40oC.The various thermodynamic parameters such as ΔGo, ΔHo and ΔSo were also calculated. The values of ΔGo varie... Autori: Soheil Aber ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26080
A NOVEL APPROACH FOR MODELING Cu2+ AND Zn2+ ADSORPTION FROM INDUSTRIAL LEACHATE BY PEANUT SHELLS
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractIn this work the adsorption of Cu2+ and Zn2+ from industrial wastewater by peanut shells without any pretreatment wasinvestigated through optimization techniques such as a feed-forward back-propagation artificial neural network and a simplexalgorithm. The Levenberg-Marquardt algorithm was the best back-propagation algorithm, with a minimum mean squared error of0.000217 for Cu(II) and of 0.000229 for Zn2+. Mean square error on the validation set is used as an estimate for variance.Accordi... Autori: Başak Mesci ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26227
ADSORPTIVE REMOVAL OF HAZARDOUS METHYLENE BLUE BY FRUIT SHELL OF Cocos nucifera
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractIn this work, fruit shell of Cocos nucifera (FSCN) treated with H3PO4 has been tested as a low cost adsorbent for the removal of methylene blue (MB) from aqueous solution in batch and column process. The adsorption of MB onto FSCN was affected by the initial solution pH, dye concentration, temperature, column internal diameter and adsorbent dose. The adsorption equilibrium data was fitted well to the Langmuir model and the maximum adsorption capacity was found to be 20.74 mg/g at 40ºC. K... Autori: Pijush Kanti Mondal, Rais Ahmad, Rajeev Kumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26274
ADSORPTION OF METHYLENE BLUE DYE ONTO SURFACE MODIFIED CASHEW NUT SHELL
Environmental Engineering and Management Journal › Vol. 13 › Nr. 3 AbstractIn the present study, batch adsorption experiments were performed for the removal of methylene blue (MB) dye from its aqueoussolution using newly prepared surface modified cashew nut shell (SMCNS) by varying the operating parameters like solution pH,adsorbent dose, initial dye concentration, contact time and temperature. The SMCNS has been prepared by treating the cashewnut shell with the sulphuric acid. Adsorption equilibrium data were analyzed by the model equations such as Langmuir,Fr... Autori: Krishnan Gayathri Lashmi, Muthukumar Priyadharshini, Ponnusamy Senthil Kumar, Ramasundaram Vijayakumar Abhinaya, Subramanian Sivanesan, Vishwanathan Arthi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26309
BIODEMINERALIZATION OF SHRIMP SHELL VIA AEROBIC AND ANAEROBIC CONDITIONS: GROWTH KINETIC STUDIES
Environmental Engineering and Management Journal › Vol. 14 › Nr. 4 Abstract
In the process of chitin extraction, shrimp shell powder was treated by Lactobacillus plantarum culture. The efficiency of
microbial demineralization (DM) under aerobic and anaerobic conditions was investigated. The shrimp shell powder was
incubated at 30 °C for 6 days with L. plantarum. In order to prepare microbial culture, inoculums size was 5% for culture
inoculation. Date syrup with total reduce sugar concentration of 30 g.L-1 was used. The value of pH in anaerobic conditio... Autori: Marjan Khorrami ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26692
APPLICATION OF Mangifera indica SEED SHELL FOR EFFECTIVE ADSORPTION OF Fe(II) AND Mn(II) FROM AQUEOUS SOLUTION
Environmental Engineering and Management Journal › Vol. 14 › Nr. 4 Abstract
Adsorption has proved to be an excellent way to treat industrial wastewater, due to its significant advantages like easy
availability, inexpensive, ease of operation and highly efficient, compared to conventional expensive adsorbents like activated
charcoal, alumina etc. The present investigation focused on utilization of Mangifera indica seed shell substrate for the removal of
toxic heavy metals like Fe(II) and Mn(II) from wastewater. Mangifera indica seed shell substrate as an eff... Autori: Tikaram D. Kose ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26713
ADSORPTIVE REMOVAL OF PHOSPHATE FROM AQUEOUS SOLUTIONS BY WASTE SNAIL AND CLAM SHELLS
Environmental Engineering and Management Journal › Vol. 14 › Nr. 5 Abstract
Large quantities of snail and clam shells are left as waste material when their meat is used as food for people. It has been a big
problem that how to treat these wastes and usually these are land filled as wastes. In the present paper, these shells are studied as
recycling resource for phosphate removal from solutions. Laboratory-scale batch experiments were conducted to evaluate the
efficiency of snail and clam shells in removing phosphate from aqueous solutions. Major factors inv... Autori: Ji Bing Xiong ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26727
EQUILIBRUM AND KINETIC STUDIES ON THE ADSORPTION OF PENICILLIN G BY CHESTNUT SHELL
Environmental Engineering and Management Journal › Vol. 15 › Nr. 1 Because of their toxic effects on the food chain and sources of water, antibiotics are potential pollutants that represent an
important environmental problem. The objective of this research was to study the adsorption of penicillin G (PEN G) onto
chestnut shell using a batch adsorption system. Maximum adsorption was achieved at pH 3.0. The equilibrium uptake capacity
(mg/g) increased with increasing levels of initial penicillin G concentration. The uptake capacity of penicillin G onto chestnu... Autori: Amir Sheikh Mohammadi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26940
SOLUBILITY AND DURABILITY OF CARDANOL DERIVED PLASTICIZERS FOR SOFT PVC
Environmental Engineering and Management Journal › Vol. 15 › Nr. 9 This work was aimed to test the suitability of an epoxidized cardanol derived plasticizer for the production of soft PVC
characterized by low environmental and toxicological impact soft PVC. Nowadays, the use of natural derived plasticizer in soft
PVC industry is emerging as valid alternative towards conventional phthalate plasticizers, in order to reduce the environmental
and toxicological impact of soft PVC. In facts, cardanol is a natural and renewable resource, characterized by a wide wor... Autori: Antonio Greco ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27128
BIOSORPTION OF LEAD(II) FROM AQUEOUS SOLUTIONS USING ADSORBENTS PREPARED FROM PEANUT HULLS, SOYBEAN SHELLS AND GRAPEFRUIT PEELS
Environmental Engineering and Management Journal › Vol. 15 › Nr. 11 Equilibrium and kinetics of biosorption of lead(II) from aqueous solutions by local low-cost agricultural by-products – peanut hulls, soybean shells and grapefruit peels were compared to develop high-efficient and low-cost biosorbents for removal of lead(II) from wastewater. Batch kinetics showed adsorption equilibrium at about 90 min and the adsorption process for the three biosorbents was better represented by the pseudo-second-order model than the pseudo-first-order model. Batch equilib... Autori: Rui Yu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27176
PREPARATION AND SEM-EDX-XRD CHARACTERIZATION OF MAGNETIC ZEOLITIC MATERIALS OBTAINED FROM COAL FLY ASH
Environmental Engineering and Management Journal › Vol. 16 › Nr. 11 A low-cost magnetic zeolitic material was synthesized from coal fly ash by means of a new, simple method involving alkaline
hydrothermal zeolitization of fly ash (FA) followed by low-intensity wet magnetic separation. Scanning electron microscopy
with energy-dispersive X-ray analysis was applied to characterize the composition, microstructure, and morphology of the
material. The mineral and synthetic zeolite phases were identified by powder X-ray diffraction. The obtained magnetic zeolitic
m... Autori: Annie Shoumkova ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27486
A COMPARISON STUDY OF WATER FILTERING MATERIALS MADE FROM EXTRACTED PALM FRUIT FIBRE AND PALM KERNEL SHELL
Environmental Engineering and Management Journal › Vol. 16 › Nr. 12 The use of activated carbon as filter media for water has gained research attractions over the years. A comparison study of
granular activated carbon (GAC) of extracted palm fruit fibres (EPF), palm kernel shell (PKS) with existing filter material (EFM)
commercially produced activated carbon for water filtration has been conducted. Palm kernel shells and extracted palm fruit
fibres from palm oil mill wastes were processed to form activated carbon by chemical activation process. Scanning Elect... Autori: Jamaliah Idris ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27498
BINARY BIOSORPTION OF Cu(II)-Pb(II) MIXTURES ONTO PINE NUTS SHELL IN BATCH AND PACKED BED SYSTEMS
Environmental Engineering and Management Journal › Vol. 17 › Nr. 6 The study of binary biosorption of Pb(II) and Cu(II) was performed by pine nuts shell. Results were compared with the single biosorption of Pb(II) and the single biosorption of the Cu(II). Experiments were performed in batch stirred and in a continuous system. The presence of lead caused a slightly decrease of the copper biosorption yield and can be related to the copper equilibrium uptake. This antagonistic action can be related to competition phenomena between metal ions in solution for active... Autori: Gabriel Blázquez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27611
Environmental engineering and Management Journal No. 6
Environmental Engineering and Management Journal › Vol. 17 › Nr. 6 FLUCTUATION OF RIVER NETWORK WATER ENVIRONMENTAL CARRYING CAPACITY IN A COMPLICATED RIVER-LAKE SYSTEM
• MINERALOGY AND GEOCHEMICAL DISTRIBUTION OF HEAVY METALS FOR THE FAGUL CETĂȚII TAILINGS, ROMANIA
• ACCUMULATION AND AVAILABILITY OF TRACE ELEMENTS FROM SOIL INTO ORIENTAL TOBACCO GROWN IN MACEDONIA
• OLFACTORY EFFECT ON LANDSCAPE PREFERENCE
• EFFECT OF MOLASSES ADDITION AS BIODEGRADABLE MATERIAL ON PHENOL REMO... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=27628
CATALYTIC OZONATION ON IRON-LOADED RICE HUSK ASH/PEANUT SHELL ASH FOR THE REMOVAL OF ERYTHROMYCIN IN WATER
Environmental Engineering and Management Journal › Vol. 19 › Nr. 5 This study investigates the mechanism and efficiency of catalytic ozonation process on iron-loaded rice husk ash (Fe-RHA) and Peanut shell ash (Fe-PSA) for the Erythromycin removal from aqueous solution. In the current study, the COD removal efficiency of Erythromycin was studied in simple ozonation and catalytic ozonation using Fe-RHA/O3 and Fe-PSA/O3 processes. The operational parameters such as pH effect, catalyst dose, and reuse performance of the catalyst were studied. Moreover, the hydroxy... Autori: Shama Nazir ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=28208
EXTRACTION AND CHARACTERIZATION OF SERICIN PROTEIN FROM Bombyx mori
Environmental Engineering and Management Journal › Vol. 19 › Nr. 5 Silk sericin is a water-soluble macromolecular protein obtained from the raw cocoons of silkworm, Bombyx mori. It comprises of about 25% of the total cocoon shell weight and is categorized as a waste by-product in textile and silk industries after the extraction of silk fibers. This study emphasizes on the extraction of sericin from B. mori by a conventional salt alkaline method and
characterized their physico-chemical properties, thermal stability, anti-bacterial and anti-oxidant activities. T... Autori: Inderchand Manjubala ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=28213
DESIGN AND CHARACTERIZATION OF CONTROLLED RELEASE PK FERTILIZERS FROM AGRO-RESIDUES
Environmental Engineering and Management Journal › Vol. 19 › Nr. 10 The aim of this study is to design and characterize a new controlled release fertilizers category by using valorization of residues from agri-food, industrial and post consumers activities normally allocated into landfill disposal. The underlying strategy in materials research fully agreed with the circular economy perspective and the more recent European legislation about critical raw materials recovering. This study covers the development of lightweight aggregates, based on a local red clay (k... Autori: Silvia Barbi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=28286 |