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Tiberiu Apostol
Department of Energy Production and Use, Faculty of Power Engineering, University POLITEHNICA of Bucharest, Bucharest 060042, Romania

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Journal article
Published: 10 June 2018 in Sustainability
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This paper presents experimental results regarding anaerobic co-digestion of the organic fraction of municipal solid waste and fruit and vegetable waste in order to establish the efficiency of a 2 m3 volume pilot plant in terms of biogas and methane yield and stability of the process. The research study presents the feasibility of developing anaerobic digestion as an effective method for municipal solid waste management. The experiments were conducted in mesophilic conditions (35 °C). Domestic waste water was used as inoculum. The results showed that the inoculum presence, temperature, and pH control, were essential in order to improve biogas production and its composition. Using liquid inoculum, the CH4 percentage in the biogas oscillated between 44% and 51%, and the biogas production from 0.504 and 0.6 m3/day. Compared to domestic waste water, animal manure increased the CH4 concentration in biogas (up to 63%), while the daily biogas production increased by 26% and varied from 0.693 to 0.786 m3. The cumulative biogas production at the end of the experiments were 11.7 m3 and 15.89 m3, respectively. Using inoculum and co-digestion, the plant startup time was significantly reduced, the total solids content decreased from 22.7% to 19.8%, while the volatile solids decreased from 37.6% to 31.2%.

ACS Style

Constantin Stan; Gerardo Collaguazo; Constantin Streche; Tiberiu Apostol; Diana Cocarta. Pilot-Scale Anaerobic Co-Digestion of the OFMSW: Improving Biogas Production and Startup. Sustainability 2018, 10, 1939 .

AMA Style

Constantin Stan, Gerardo Collaguazo, Constantin Streche, Tiberiu Apostol, Diana Cocarta. Pilot-Scale Anaerobic Co-Digestion of the OFMSW: Improving Biogas Production and Startup. Sustainability. 2018; 10 (6):1939.

Chicago/Turabian Style

Constantin Stan; Gerardo Collaguazo; Constantin Streche; Tiberiu Apostol; Diana Cocarta. 2018. "Pilot-Scale Anaerobic Co-Digestion of the OFMSW: Improving Biogas Production and Startup." Sustainability 10, no. 6: 1939.

Journal article
Published: 14 January 2015 in Sustainability
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In the new legislation framework enacted by new member countries of the European Union (EU), the characterization of municipal solid waste (MSW) represents an important instrument for local governments and sanitation operators in setting and achieving targets for waste recycling and recovery. This paper presents the results of a study conducted in accordance with the Romanian methodology for domestic wastes characterization ROMECOM, aiming to provide a proper basis for developing clear and realistic forecasts in current municipal waste management, based on MSW composition and generation rate. The analyzed MSW came both from areas where the waste is collected in mixed and separate ways, in urban and rural areas. The MSW composition by fraction is detailed for dense urban areas, urban areas, rural and touristic areas from Romania. Based on these results, the MSW composition was determined for the eight development regions in Romania, and a generation rate of 0.9·kgMSW inhabitant−1·day−1 for the urban region and 0.4·kgMSW inh−1·day−1 for the rural region was established. The calorific values of urban and rural areas were determined as 6801 kJ·kg−1 and 5613 kJ·kg−1, respectively. In the perspective of sustainable development in this technical area, based on the obtained results and on the prognosis made for the following years, two proposals for urban and rural areas were developed for MSW treating options improvement. The two systems are characterized by selective collection (different efficiencies for urban and rural areas) with subsequent recovery of the separated materials and energy recovery of the residual waste in a large-scale waste to energy (WTE) plant.

ACS Style

Simona Ciuta; Tiberiu Apostol; Valentin Rusu. Urban and Rural MSW Stream Characterization for Separate Collection Improvement. Sustainability 2015, 7, 916 -931.

AMA Style

Simona Ciuta, Tiberiu Apostol, Valentin Rusu. Urban and Rural MSW Stream Characterization for Separate Collection Improvement. Sustainability. 2015; 7 (1):916-931.

Chicago/Turabian Style

Simona Ciuta; Tiberiu Apostol; Valentin Rusu. 2015. "Urban and Rural MSW Stream Characterization for Separate Collection Improvement." Sustainability 7, no. 1: 916-931.