Essays about: "two-stage anaerobic digestion"

Found 5 essays containing the words two-stage anaerobic digestion.

1. 1. Pre-acidification of a Synthetic Dairy Wastewater in Continuously Stirred Tank Reactors

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Can Xiong; [2019]
   Keywords : pre-acidification process; hydraulic retention time; soluble chemical oxygen demand transformation into fermentation product; volatile fatty acids; distribution; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Earth and Environmental Sciences; Technology and Engineering;

   Abstract : Two-stage anaerobic digestion is considered as a sustainable and efficient way to deal with dairy effluent, and is commonly applied. The pre-acidification happening during the first stage of this process could be used to buffer the complex conditions in the initial dairy effluent, as well as produce intermediary product such as volatile fatty acids (VFA), and it is essential to be controlled. READ MORE

3. 2. Rapid Bio-methanation of Syngas by High Cell-density in Reverse Membrane Bioreactors

   University essay from Högskolan i Borås/Institutionen Ingenjörshögskolan

   Author : Konstantinos Chandolias; [2014]
   Keywords : syngas; fermentation; reverse; membrane; bioreactor; bio-methanation; high cell density;

   Abstract : Syngas fermentation via gasification is a two-stage process, which contains gasification of feedstock into syngas and syngas bio-methanation by anaerobic microorganisms. This project is a study on syngas fermentation. The gasification feedstock can be difficult-to-degrade solid waste so; waste volumes are reduced while green energy is produced. READ MORE

4. 3. Determination of the methane potential of blue mussels

   University essay from Institutionen för bygg- och energiteknik (BE)

   Author : Birte Wollak; [2013]
   Keywords : Biogas; dry digestion; blue mussels;

   Abstract : The aim of this study was to evaluate the methane potential of 35 kg of blue mussels in a batch amanaerobic two-stage dry digestion system (pilot-scale), which consists of aleach bed reactor (LB) and an up-flow anaerobic sludge blanket reactor (UASB). We monitored the process daily by measuring temperature, pH, COD, VFA, NH4+ gas flow rate and gas content. READ MORE

5. 4. High rate biogas production from waste textiles

   University essay from Högskolan i Borås/Institutionen Ingenjörshögskolan

   Author : Karthik Rajendran; Gopinath Balasubramanian; [2011]
   Keywords : biogas; waste textiles; nmmo-pretreatment; two-stage anaerobic digestion; UASB; CSTR;

   Abstract : Textile is a global product used by all people in the world. These textiles after the use are thrown into the trash for incineration or land filling. However an efficient way that can be used to produce more energy, in an environmentally friendly process is anaerobic digestion. Waste textiles which contain cellulosic fibers (e. READ MORE

6. 5. Evaluation of pre-fermentation using confectionery waste products for two-stage anaerobic digestion

   University essay from Tema vatten i natur och samhälle

   Author : Björn Magnusson; [2010]
   Keywords : pre-fermentation; confectionery waste products; two-stage process; anaerobic digestion; biogas;

   Abstract : The finite amount of energy carriers affects all of us. It is important to utilize all available sources and to find new sources of energy. The confectionery industry generates both solid and liquid waste during the production of confectioneries, which could be utilized as a substrate for biogas production. READ MORE