SUSAN - Sustainable and Safe Re-use of Municipal Sewage Sludge for Nutrient Recovery
© DIV Deutscher Industrieverlag GmbH (8/2010)
Large scale considerations of the thermo-chemical heavy metal removal from sewage sludge for the safe recycle of Phosphorus

Domestic Wastewater Recycling
© DIV Deutscher Industrieverlag GmbH (9/2009)
„Toilet-to-toilet“ and „tap-to-tap“, instead of „toilet-to-tap“ – a new approach

Trickle-Flow Biotechnology for Waste Water Treatment / Abwasserbehandlung
© DIV Deutscher Industrieverlag GmbH (9/2009)
A modern process for highly efficient wastewater treatment

Biosorption of zinc from industrial wastewater using bacteria resistance
© Aristotle University of Thessaloniki (6/2009)
In this study in order to determine and investigate the effect of zinc concentration on bacteria resistance threshold, two samples of industrial wastewater(1 and 2) were collected. The concentrations of zinc in samples were 36 and 17 gL-1. In order to access heterotrophic plate count, wastewater samples were cultured on nutrient agar by pour plate method and to count and isolate the Zn resistant bacteria, samples were cultured by spread plate method on PHG-II agar include of 0.5 mML-1 of Zn in three dilution and two replications.

Examination of two wastewater step-feeding schemes in enhancing the performance of a horizontal subsurface flow constructed wetland
© Aristotle University of Thessaloniki (6/2009)
Effect of gradational inflow or step-feeding is tested through experiments in a horizontal subsurface flow pilot-scale constructed wetland. The unit is a 3 m long and 0.75 m wide metal tank containing cobbles, where the vegetation (common reed) is planted. Experiments lasted from February 2007 to February 2008.

Bioremediation of wastewater containing azo dyes through two-stage bioreactor and its biodiversity
© Aristotle University of Thessaloniki (6/2009)
A two-stage anoxic–oxic treatment process based on mixed culture of bacteria isolated from textile dye effluent was used to degrade reactive black 5 dye (RB-5). Results showed that major decolorization was achieved during the anoxic process. The time required for decolorization by >90% increased as the concentration of the dye increased. Maintenance of dissolved oxygen (DO) below 0.5 mg L-1 and addition of a co-substrate viz., glucose, facilitated anoxic decolorization reaction remarkably. The study aimed at optimization of conditions for efficient decolorization, biostimulation, enhancement of effectiveness of microbial consortium, tolerance to high salt concentration and non-specific ability towards decolorization of other azo dyes.

Enhancement of an effluent treatment facility for treatment of terephthalic acid wastewater
© Aristotle University of Thessaloniki (6/2009)
Use of Purified terephthalic acid (PTA) is growing throughout the world for its wide applications in packaging and food industry. Indiscriminate disposal of the effluents from the PTA production facility leads to ecological risk to the aquatic environment as many aromatic compounds such as paratolueic acid, benzoic aid are formed.

Evaluation of the biodegradability of organic waste by the means of impedance analysis
© Wasteconsult international (6/2009)
The biodegradability and consequently the stabilization degree of biologically treated waste is a required parameter to provide the evidence of the fulfillment for the German Waste Storage Ordinance (AbfAblV, 2002). The in appendix 2, AbfAblV recommended test procedures RA4 (Respiration Activity over 4 days) and GF21 (Gas Formation over 21 days) takes at least 4 or 21 days respectively. Moreover, despite uniform regulation, obtained analytical results show a strong dispersion of the values particularly with regard to different laboratories. Within this work basics for a new microbiological approach, the impedance analysis, are examined for the evaluation of the biodegradability. A clear correlation resulted in the case of impedance measurement and biodegradability. In addition the impedance values can be converted with appropriate regression equations into the standard parameters RA4 and GF21. Hence, it seems suitable, that organic waste samples may be controlled within a day on their depositing ability according to AbfAblV or the efficiency of the biological treatment processes could be examined by impedance analysis. Keywords: Biodegradability, Composting, Municipal Solid Waste, Impedance, Microbial Population Dynamic, RA4, GF21. MBT 1 Introduction 2 Background 3 Research Objectives 4 Methodology 4.1 Treatment Process and Sampling 4.2 Selective Media and Incubations Conditions 5 Results and Discussion 5.1 Plate Count 5.2 Impedimetric Approach 6 Conclusions

Bacth system for study of (Cr) biosorption by dried waste activated sludge
© European Compost Network ECN e.V. (10/2008)
Biosorption processes, defined as the sorption of metal ions by biomass, are being employed as an alternative technique for the decontamination of industrial effluents and for the recovery of the retained metals.

Full biological treatment of landfill leachate: a detailed case study at efford landfill, in the new forest, hampshire, uk
© IWWG International Waste Working Group (10/2007)
This paper describes in detail a case study that has involved the design, construction and commissioning of an SBR leachate treatment plant for Hampshire County Council, at Efford Landfill Site in the New Forest in Hampshire.

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