Effects of biochar amendment on ammonia emission during composting of sewage sludge

Self Cite

Abstract. The paper presents the energy and economic comparison of two technologies of maize straw utilization: solid biofuel production (briquettes) and methane fermentation. The research experiments have shown that maize straw is the material which can be efficiently implemented in both technologies. Maize straw usage as briquettes can generate more energy (10.956 GJ Mg -1 ) than methane fermentation (9.74). In Europe, biogas is used in co-generation units for production of electric and heat energy. Due to higher price of electricity, economic profitability of maize straw usage for biogas production is over twice higher (182 USD) than in case of briquettes production (96 USD).

Section: Introductionmentioning

confidence: 99%

Energy and economic potential of maize straw used for biofuels production

Zbytek

Dach

Pawłowski

et al. 2016

Self Cite

“…Power of discussed installation is about 1 MW of electricity and 1 MW of thermal energy, at daily production of biogas over 13 000 m 3 .…”

Section: Materials and Methods Of Researchmentioning

confidence: 99%

“…Among the waste materials, the specific group includes organic waste and residues, which are characterized by high content of moisture and organic matter. This group includes animal faeces [1], sewage sludge [2][3][4], residues from the forestry sector [5] and agri-food waste [6].…”

Section: Introductionmentioning

confidence: 99%

Economic and energy efficiency of the solid biofuels produced from digested pulp

Czekała

Bartnikowska

Lewicka

et al. 2016

Abstract.One of the methods of renewable energy production is biogas plant. Products of anaerobic digestion are biogas and residual material called digested pulp or digestate. This material is commonly used as a fertilizer. One of a new possibility of digested pulp management is solid biofuels production after separation. This paper presents the calculation of cost for production of briquettes from digested pulp. The performed economic analysis proves that the production of briquettes from digested solid fraction (DSF) can be profitable and provide additional income for the biogas plant.

“…renewable sources, had a significantly growing interest [1][2][3]. Implementation of renewable energy sources (RES) in recent years can be also related to a rational waste management and generallyincreasing emphasis on environmental protection [4][5]. The most important advantage of renewable energy is the fact that RES are inexhaustible and renewed naturally.…”

Section: Introductionmentioning

confidence: 99%

Energetic Efficiency of the Vegetable Waste Used as Substrate for Biogas Production

Janczak

Kozłowski

Zbytek

et al. 2016

Abstract. Different vegetable waste materials (beetroot leaves, turnip leaves, yellow beans, onion waste), commonly found in Central Poland were tested for estimation of energy efficiency while methane fermentation process. The results showed that the biggest green mass of vegetable waste harvested from field was related to the highest water content. In contrary, the higher methane production from 1 Mg of tested biowaste was obtained in case of the materials with the highest dry mass content (yellow beans and onion waste, 28.03 and 44.33 m 3 Mg -1 ). Although the onion waste was the lowest fermented substrate, however the energy yield for this material is visibly the highest (4435 kWh ha -1 ) among all tested ones.