Erscheinungsdatum: 09.10.2016, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Sludge from pulp and paper mills for biogas production, Autor: Hagelqvist, Alina, Verlag: LAP Lambert Academic Publishing, Sprache: Englisch, Rubrik: Bau- und Umwelttechnik, Seiten: 144, Informationen: Paperback, Gewicht: 231 gr, Verkäufer: averdo
Sludge from pulp and paper mills for biogas production ab 55.9 € als Taschenbuch: . Aus dem Bereich: Bücher, Wissenschaft, Technik,
Sugar beet pulp as a substrate for the production of biogas ab 43.95 € als Taschenbuch: Profitability of investments in biogas plants. Aus dem Bereich: Bücher, Wissenschaft, Technik,
Sugar beet pulp as a substrate for the production of biogas ab 43.95 EURO Profitability of investments in biogas plants
Sludge from pulp and paper mills for biogas production ab 55.9 EURO
Anaerobic Digestion is a series of chemical reactions during which organic material is decomposed through the metabolic pathways of naturally occurring microorganisms in an oxygen-depleted environment.In nature this type of breakdown typically occurs in warm wet and dark environments, such as in the digestive tracts. The microorganisms are exploited in the biotechnological process of anaerobic digestion both to reduce the pollution caused by organic wastes and to produce methane, which can be used as a fuel. The number and types of microorganisms present in digesters are likely to depend upon the type of digester, its operating conditions and the waste composition. Anaerobic Digesters can be used on any carbon containing industrial wastewater i.e. food processing, pulp and paper, sugar and distillery, slaughterhouse, cheese whey and diary units, brewing industry and municipal sludge. Also, they provide an effective method for turning residues from different wastes, biogas (rich in methane which can be used to generate heat and/or electricity), fiber (this can be used as a nutrient-rich soil conditioner) and liquor (this can be used as liquid fertilize).
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.
The main focus of this book is on energy efficient strategies for sludge management, with special focus on anaerobic digestion which produces biogas to replace fossil fuels. Pulp and paper mill sludge is currently treated as a poor quality biofuel and some mills treat it solely as a disposal problem. Our results show that electricity used for aerators in the wastewater treatment plant should be kept to the minimum required for sufficient reduction of dissolved organics. If more electricity is used, i.e. if more air is used for wastewater treatment, this will reduce the energy value of the sludge as the bio-sludge will be degraded. Biogas production using anaerobic co-digestion of pulp- and paper mill sludge together with either municipal wastewater treatment sludge or with manure and grass silage has been studied from several perspectives. It was found that anaerobic digestion is a feasible option for pulp and paper mill sludge management, provided that co-digestion with other substrates is used for nutrient supplementation.
This book includes 19 chapters contributed by the world's leading experts on pretreatment methods for biomass. It extensively covers the different types of biomass (e.g. molasses, sugar beet pulp, cheese whey, sugarcane residues, palm waste, vegetable oil, straws, stalks and wood), various pretreatment approaches (e.g. physical, thermal, chemical, physicochemical and biological) and methods that show the subsequent production of biofuels and chemicals such as sugars, ethanol, extracellular polysaccharides, biodiesel, gas and oil. In addition to traditional methods such as steam, hot-water, hydrothermal, diluted-acid, organosolv, ozonolysis, sulfite, milling, fungal and bacterial, microwave, ultrasonic, plasma, torrefaction, pelletization, gasification (including biogas) and liquefaction pretreatments, it also introduces and discusses novel techniques such as nano and solid catalysts, organic electrolyte solutions and ionic liquids. This book offers a review of state-of-the-art research and provides guidance for the future paths of developing pretreatment techniques of biomass for biofuels, especially in the fields of biotechnology, microbiology, chemistry, materials science and engineering. It intends to provide a systematic introduction of pretreatment techniques. It is an accessible reference work for students, researchers, academicians and industrialists in biorefineries.Zhen Fang is a Professor of Bioenergy and the leader and founder of the biomass group at the Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences. He is also an adjunct full Professor of Life Sciences at the University of Science and Technology of China.