Skip to main content

Issue 1

Global NEST Journal cover

Global NEST Journal

ISSN numbers
Special notes

Issue on Wastewater Treatment


Issue number
Publication month

Influence of the Presence of Long Chain Fatty Acids (Lcfas) in the Sewage on the Growth of M. Parvicella in Activated Sludge Wastewater Treatment Plants


Mamais D., Nikitopoulos G., Andronikou E., Gavalakis E., Andreadakis A., Noutsopoulos K., Giotakis C... View all


Foaming and bulking problems in activated sludge treatment plants are associated to the presence of a variety of filamentous bacteria. However, it has been observed that M. parvicella is the most frequent filamentous microorganism causing sludge bulking and foaming, especially in treatment plants...

Activated sludge Filamentous Bulking +2 more

An experimental and mathematical simulation of biological processes in a sewerage system


Gavalakis Ε., Mamais D., Marinos C. and Andreadakis A.


Sewer systems may often operate as bioreactors causing considerable wastewater quality changes and in some cases reducing the pollution load conveyed to the treatment plant. Conceptually, transformation of organic matter takes place both in the bulk water (by suspended micro-organisms) and by the...

Wastewater gravity sewer +4 more

Determination of kinetic parameters in a pilot scale BNR system treating municipal wastewater


Kapagiannidis A.G., Vaiopoulou E. and Aivasidis A.


Kinetics for the biological processes of nitrification, denitrification and carbon oxidation were studied in the aerobic and anoxic phases of a pilot scale Biological Nutrient Removal (BNR) plant treating municipal wastewater. The configuration of the treating system is based on the combination of...

Municipal wastewater treatment BNR +5 more

Determination of methyl mercury in a pilot-scale activated sludge wastewater treatment plant


Pavlogeorgatos G.D., Thomaidis N.S., Nikolaou A.D. and Lekkas T.D.


The methylation of mercury has been investigated and documented mainly in sediments, fish and microorganisms, while limited number of relevant studies is available for wastewater. The procedure of mercury methylation can occur via biological pathway (by microorganisms) and via chemical or...

methyl mercury Wastewater +5 more

Economic Evaluation of Small Capacity Sewage Processing Units


Gratziou M.K.,Tsalkatidou M., and Kotsovinos N.E.


This paper aims at a comparative evaluation of the total cost of urban sewage processing units for several treatment systems, appropriate mainly for small capacity plants. The studied systems are: Oxidation Ditch (O.D.), Trickling Filter (T.F.), Rotating Biological Contactor (R.B.C.), Compact...

Cost wastewater treatment plant +1 more

Kinetic characterization of nitrifying pure cultures in chemostate


Kantartzi S.G., Vaiopoulou E., Kapagiannidis A. and Aivasidis A.


The process of nitrification in wastewater treatment is widely accepted as a two-step process. In the first step the ammonia is oxidized to nitrite, a process considered to be carried out mainly by the Nitrosomonas sp., while in the second step the Nitrobacter sp. oxidizes the nitrite to nitrate...

nitrification kinetics ammonia oxidation +1 more

Addition of nitrate for odor control in sewer networks: laboratory and field experiments


Mathioudakis V.L., Vaiopoulou E. and Aivasidis A.


This paper presents a biological method for controlling odor problems caused by H2S originating from sewer networks under anaerobic conditions. The proposed method is based on the continuous addition of nitrate which oxidizes dissolved sulphide according to an autotrophic biological procedure and...

odor control sewer network +5 more

Applied pilot-scale studies on ceramic membrane processes for the treatment of wastewater streams


Pagana A., Stoitsas K. and Zaspalis V.T.


Asymmetric multilayer Al2O3 ceramic membranes with pore sizes ranging from 3 to 500 nm are synthesized in tubular form with external diameter of 14mm, internal diameter of 8mm and length of 340mm. The membrane synthesis took place on commercially available supports, with the dip-coating technique...

Ceramic membranes Microfiltration +2 more

Coke oven wastewater treatment by two activated sludge systems


Papadimitriou C., Dabou X., Samaras P. and Sakellaropoulos G.P.


In this study two bench scale activated sludge systems were used, a CSTR and an SBR for the treatment of coke – oven wastewater. Both reactors were inoculated with activated sludge from a municipal wastewater treatment plant. At the first stages of operation, reactors were feed by a mixture of...

SBR CSTR +4 more

Biological treatment of water contaminated by hydrocarbons in three-phase gas-liquid-solid fluidized bed


Allia K., Tahar N., Toumi L., and Salem Z.


Biological treatment has been carried out in two different systems: aerated closed and threephase fluidized bed reactors for hydrocarbons removal from refinery wastewaters. For the two systems, hydrodynamic study allowed the determination of operating conditions before treatment experiments. Then...

biological treatment refinery wastewaters +2 more

Quick start-up of Mudanjiang wastewater treatment plant and factors influencing phosphorous removal


Huang P., Zhao Q., Qin S.Y. and Guo X.


Successful start-up of a full-scale wastewater treatment plant (WWTP) is a key issue for the succeeding operation of WWTP on the one hand and the nutritious phosphorus removal is of great concern on the other. After the construction of Mudanjiang WWTP with a flow rate of 100,000 m3 d-1 in...

biological phosphorus removal Anaerobic +3 more