Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
This Master Thesis “Application of defecation lime from sugar industry in Uzbekistan” is done in the Master’s Programme in Sustainable Technology at the Royal Institute of Technology (KTH).In this project Khorezm Sugar Company, operations in the factory and environmental problems in it have been studied.Impacts of defecation lime were described. The waste causes a lot of environmental and economical problems in the region. As it is dry and consists of particles with small size,defecat is easy spread able with the wind. It swells to nearest areas and could have impact on biodiversity as well as on health of people. Different modern methods of handling the defecation lime in Europe and Asian countries and new methods that are not in practice in large scales yet, were also described.These methods, such as: use of defecation lime as a soil improver, as a fertilizer, as an additive in greenhouse soil mixture, as a sorbent to treat waste water, as a micro filler incement production and foam concrete production and as a mineral additive in animal feeding.Advantages and disadvantages of these methods were examined. As an example the British Sugar and the Lime X division of the company were described. They obtain the same type of waste from sugar production. And use defecationlime as a soil improver to stabilize soil pH, to add organic matters to soil and improve soilstructure. The defecation lime is sold by 3 brands in the company, like: LimeX 45, LimeX 70and LimeX Super70 M. What they are doing and how they treat are described.As the main treatment method in the other sugar manufacturing companies, use of defecat as a soil improver was studied deeply. Therefore, soil characters of Uzbekistan have also been described. The fertilizer need in the country, especially in Khorezm region andcrops need for organic matters were overviewed. Different treatment methods of defecation lime, which are described in the thesis, are discussed to apply them in Khorezm Sugar. During discussing and suggesting methodstechnological and economical features have been taken into account. As a main type of treatment to use defecation lime in cement and foam concrete production were suggested.Also, use defecat as a soil improver and as additional methods, use of defecation lime as an additive in greenhouse soil mixture and to use as a sorbent to treat waste water were recommended.
2006. , 96 p.