Selin Akçay

Co-pelletization of sewage sludge and agricultural wastes

This paper concerns the process of production and properties of pellets based on biomass wastes. Co-pelletization was performed for sewage sludge from municipal wastewater treatment plant and other biomass material such as animal and olive wastes. The aim of the present study was to identify the key factors affecting on the sewage sludge and agricultural residues co-pelletization processes conditions. The impact of raw material type, pellet length, moisture content and particle size on the physical properties was investigated. The technic and technological aspects of co-pelletization were discussed in detail. The physical parameters of pellets, i.e.: drop strength, absorbability and water resistance were determined. Among others, also energy parameters: low and high heat value, content of ash and volatiles were presented. Results showed the range of raw materials moisture, which is necessary to obtain good quality biofuels and also ratio of sewage sludge in pelletizing materials. The analysis of the energetic properties has indicated that the pellet generated on the basis of the sewage sludge and another biomass materials can be applied in the processes of co-combustion with coal. Those biofuels are characterised with properties making them suitable for use in thermal processes and enabling their transport and storage.

Aydın Yenipazar-Hamzabali Köyünde Toplulaştırma Etkinliğinin Araştırılması

Bu calisma, Aydin Ili, Yenipazar Ilcesi Hamzabali Koyunde uygulanan arazi toplulastirmasinin etkinligini belirlemek amaciyla yurutulmustur. Koyde bulunan 50 isletmeci ile yapilan anket verileri ve ilgili kurumlardan alinan veriler calismanin materyalini olusturmaktadir. Toplulastirmanin etkinligini belirlemek amaciyla 2 ana gosterge secilmistir. Bunlar; su kullanim etkinliginin ve fiziksel etkinligin belirlenmesidir. Bu gostergeler altinda toplulastirmanin sulama etkinligine, ulasim etkinligine, parsel sekline, buyuklugune ve sayisina etkisi arastirilmistir. Calismada toplulastirma orani ve sulama orani gostergeleri kullanilmistir. Toplulastirma ile toplam parsel sayisinda %63 azalma olmustur. Toplulastirma orani %46 ve sulama orani %94.68 olarak belirlenmistir. Toplulastirma ile dikdortgen parsel sayisi %27.03’den %77.11’e yukselmistir. Butun parseller yola ve sulama sistemine kavusmustur.