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Issue 2

Global NEST Journal cover

Global NEST Journal

ISSN numbers
1790-7632
2241-777X
Special notes

Issue on Pollution Control Technologies

Volume

Issue number
2
Publication month
July

Toxicity reduction in leather tanning wastewater by improved coagulation flocculation process

by

Lofrano G., Belgiorno V., Gallo M., Raimo A. and Meri? S.

General

The wastewater of leather industry which is one of the most widespread industries having large amount of water consumption and very high pollution loads, may be characterized by several key parameters including toxic pollutants exhibiting toxicity. Therefore the effluent of leather tanning industry...

leather tanning industry coagulation process +7 more

Use of ion exchange for removal of Ammonium: A biological regeneration of zeolite

by

Rahmani A.R. and Mahvi A.H.

General

Nitrogen in the Ammonia form can have deleterious effects in water resources. Ion Exchange by zeolite and biological Nitrification processes are two proposed methods for removing Nitrogen compounds from wastewater and effluents. The main objective of this research was to investigate the efficiency...

Ammonium removal - Ion exchange - Zeolite - Nitrification - Biological regeneration

Trace element removal from hot gasification flue gases using solid sorbents

by

Diaz-Somoano M., Lopez-Anton M.A. and Martinez-Tarazona M.R.

General

Coals contain elements which, although usually found in concentrations lower than 1% (trace elements), can give rise to environmental or technological problems. After gasification most of these elements may occur in gas phase in different proportions. In order to avoid the problems that the presence...

Trace element solid sorbent +3 more

Sulfuration treatment of electroplating wastewater for selective recovery of copper, zinc and nickel resource

by

Fukuta T., Matsuda H., Seto F. and Yagishita K.

General

In the electroplating process, various metal salts are used and the residues on the surface of electroplated materials are rinsed out as wastewater, followed by hydration in a wastewater disposal step. Although a variety of metals are concentrated in the sludge, the mixed heterogeneous state of...

Electroplating wastewater Metal sulfide +3 more

Removal of methylene blue by using biosolid

by

Sarioglu M. and Atay U.A.

General

The mechanism of Methylene Blue adsorption on biosolid (waste sludge) has been studied through batch experiments. The effects of various experimental parameters, such as pH (3- 11), biosolid dosage (1-10 g l-1), contact time (5-1440 min) and initial dye concentration were investigated. The results...

methylene blue dye +1 more

Aeration / Stripping of n-Butyl Mercaptan in aqueous environment

by

Matsis V.M. and Grigoropoulou H.P.

General

╬ťany applications in water quality management have a common key water quality parameter, dissolved oxygen, resulting to the critical role of aeration. On the other hand, in municipal and industrial wastewater, especially where aeration is applied, the presence of volatile organic compounds (VOCs)...

aeration stripping +3 more

Ozone pre-oxidation of a textile industry wastewater for acute toxicity removal

by

Selcuk H. and Meric S.

General

In this work, pre-ozonation for degradation, decolourization and detoxicifying of a raw textile wastewater collected in a textile fininshing industry, Istanbul (Turkey) is investigated. Differing from the previous studies, a low ozone (O3) flow rate (9.6 mg min-1) was applied at original pH of the...

Textile wastewater pre-ozonation +6 more

Effects of pyrolysis temperature, residence time on the reactivity of clean coals produced from poor quality coals

by

Skodras G., Natas P., Basinas P. and Sakellaropoulos G.P.

General

Combustion of poor quality coals is used today worldwide for energy production. The removal of polluting compounds, i.e. S, N, Hg and Cl from them prior to combustion is important not only for improving the coal quality, but also for meeting the strict environmental standards. Thus, a preventive...

coal carbonisation +3 more