A day well spent exploring the unseen side of Nairobi through Kibera Slum which is unseen by most tourists. Kibera is Africa's largest slum and the friendliest slum in the world. Visit Toi market, an Orphanage/ School, a Bead Factory, a typical Kibera-House and The Biogas Center.
The case study of a biogas plant at the sugar factory ab 39.9 € als Taschenbuch: The technical and economic research. Aus dem Bereich: Bücher, Wissenschaft, Biologie,
The case study of a biogas plant at the sugar factory ab 39.9 EURO The technical and economic research
The present work is a study of possibilities in producing biogas from sugar beet pulp. The sugar beet pulp is a relative efficient substrate. Biogas yield obtained from it reaches 584 m3/ ton of oDM. Moreover, the methane content in biogas ranges from 50 to 55%. This guideline is based on sugar factory located in Poland. The above mentioned factory plan to use their own by- products, which are sugar beet pulp, beet roots and molasses. The biogas plant is to have capacity of 1.55 MW. Very important factors in present study are economical issues. In order to build a plant it is needed to calculate foundations, materials, miscellaneous and engineering costs. Overall cost of biogas plant is about 5 mln Euros. Annual expenses, outcomes and incomes are calculated in present study. The main reason of biogas plant is producing and selling thermal and electric energy. In case of building such a big undertaking a bank loan can be needed. The bank loan is explained on this example. Total sums of loans and bank interests as well as the investment payback time are presented in this book.
Pharmaceutical industries discharge a variety of highly toxic and persistent organics in their wastewater. presence of antibiotics in pharmaceutical wastewater is affecting on treatment processes. Chapter one is an overview about the wastewater treatment processes . Chapter two gives a description of Samarra Drugs Factory, source of pharmaceutical wastewater, quality and quantity of untreated wastewater. Chapter three describes the literatures concerning types of biological treatment processes and the previous studies. Chapter four gives an idea about the experimental works.Chapter five is intended to present the results and discussion, concerning the removal of COD(chemical oxygen demand), BOD (biochemical oxygen demand),Tss (total suspended solids) and other pollutants by upflow anaerobic filter, anaerobic/ aerobic removal of COD and BOD, the biogas yield, the effective depth of anaerobic filter and the design of full scale upflow anaerobic filter. Finally chapter six presents the conclusions and recommendations for further studies.The target of this work is treating of pharmaceutical waste water by sequential anaerobic/aerobic biological treatment.
The technical and economic research is to develop the concept of the biogas plant using by-products and wastewater from production in the factories based on the processing of sugar beet. And also the exact technological aspects of the biogas plant were presented. The subject of study on working biogas plant was carried out on the basic information from some of a Polish Sugar Plant and fulfilled by literature. Industrial assumptions are presented, such as raw materials for biogas production, currently owned technical infrastructure and land development. The concept of biogas plant installation with division into individual objects is presented. The purpose of this article was to develop the economic analysis for biogas plant working at sugar factory and to show the energy balances and material and then calculated the main economic indicators such as Cash Flow (CF), Net Present Value (NPV), Internal Rate of Return (IRR) and Discounted Payback Period (DPP). It was found that the biogas plant operating at a sugar factory can be a profitable investment and DPP amounted to 4 years. However, these results are estimates and in reality they may changed.