Estimation of Methane Generation and Energy Potential of Nigde Landfill Site Using First Order Mathematical Modelling Approaches

Abstract

Methane content of landfill gas is approximately 50%. Methane has a significant calorific and economic value, rather than its greenhouse effect. Therefore, it is essentially important to estimate future LFG and methane production in terms of usage and management policies. More than a few models have been used to computerize prospective methane trends based on deposited waste characters and climatic information. This study aims to calculate LFG and methane production using different models. The model inputs were adopted from field measurements, waste characterization, meteorological information, and technical papers prepared by Conestoga-Rovers & Associates (CRA), Intergovernmental Panel on Climate Change (IPCC), and United States Environmental Protection Agency (EPA). This study indicates that the first order models have different outcomes for Niğde Landfill Site and the increase in methane generation potential value causes higher generation volumes of LFGs for the future. The maximum total LFG production is estimated as 600 million m 3 with a methane potential of 126 m 3 /ton and total methane yield for the same method was calculated as 312.5 million m 3. This study also estimates the maximum electricity generation from LFG. The maximum electricity generation was estimated 6.9 million kWh for 2042.

Türkiye’nin endüstriyel elektrik tüketimine yönelik depolama gazı enerji potansiyeli

“…Metan gazından elde edilebilecek elektriğin Ege Bölgesi'ndeki konut elektrik ihtiyacının bir kısmını karşılayabileceği sonucuna ulaşılmıştır. Gök [5] tarafından yapılan çalışmada Niğde ilinde depolama sahasında oluşacak metan gazı ve elektrik üretim miktarları farklı modeller kullanılarak hesaplanmıştır. Gelecekteki metan gazı potansiyelini hesaplamak için TNO, Tabasarran ve Rettenberger, Çok Fazlı Model ve ABD EPA LandGEM birinci derece modelleri kullanılmıştır.…”