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Waste stream characteristics must be understood to tackle waste management problem in Tripoli

city, Libya. It is recognized that information on both quantity and composition of generation waste

is important for the effective planning of household waste handling infrastructure. So, this study is

aimed to evaluating the generation, composition and density of household solid waste in Tripoli

city, Libya. The study is carried out according to the Annex 2.1 of: WHO 1996. It was conducted

during one week in summer, autumn and winter 2011/2012. The daily household solid waste

generation assessment has been carried out for 150 Libyan families where 947 people in three

main parts of Tripoli city have been chosen randomly. A questionnaire was prepared according to

Buenrostro et al. 2001 and Raje et al. 2001 using door-to-door surveying. The result showed that

the average of total generation quantity, daily generation rate, total volume and density were

1415 kg, 0.64 kg/person/day, 19.3 m3 and 74.4 kg/m3 respectively in Tripoli city. Household solid

waste contains 36.3% organic matter and 32.5% recyclable materials (glass, paper, plastic, met-

als). The total generation quantity, daily generation rate, total volume and density were in Tripoli

city agreed with those for African and Arabic countries. But the problem is that Tripoli suffers

from insufficient municipal solid waste management and lack of sanitary landfills

This paper presents a designed algorithm involves improvement of transferring data over Simple Object Access Protocol (SOAP). The aim of this work is to establish whether using SOAP in  exchanging XML messages has any added advantages or not. The results showed that XML messages without SOAP take longer time and consume more memory, especially with binary data

A generic and extendible Multi-Agent Data Mining (MADM) framework, MADMF (the Multi-Agent Data Mining Framework) is described. The central feature of the framework is that it avoids the use of agreed meta-language formats by supporting a framework of wrappers. The advantage offered is that the framework is easily extendible, so that further data agents and mining agents can simply be added to the framework. A demonstration MADMF framework is currently available.

In this study, the solid and liquid wastes from the olive oil processing industry were evaluated as substrates for Yarrowia lipolytica growth with the aim of lipase production. Olive mill wastewater and olive oil cake seemed to provide the necessary nutrients and physical support for yeast growth and enzyme production. The highest lipolytic activity of 850 IU dm(3) was achieved after 4 days of submerged cultivation in supplemented olive mill wastewater. In addition, olive oil cake appeared to be a convenient substrate for lipase production under a solid-state fermentation mode. Lipase production was further improved by media supplementation and/or change in the physical settings of the experiment. However, the most significant improvement of lipase production under solid-state fermentation was achieved by an alkaline treatment of the substrate (more than 10-fold), when the amount of produced lipase reached up to approximate to 40 IU g(-1) of substrate.