A SPREADSHEET TOOL TO CALIBRATE LANDGEM~(TM) GAS MODELING PREDICTION SOFTWARE FOR SITE SPECIFIC MSW FACILITIES USING DATA FROM GAS EXTRACTION AUDITS

摘要

Accurate gas prediction models are a fundamental requirement if gas extraction in municipal solid waste landfill sites is to be managed effectively. Effective gas management typically requires development of one or more theoretical models and regular calibration of the model(s) thereafter using frequent on-site audits. Accurate modelling is required to predict gas production in order to manage environmental impact; facilitate financial modelling; programme grid connections, utilisation and flaring infrastructure; and other operational considerations. The algorithms developed in this paper facilitate calibration of landfill gas prediction estimates produced by LandGEM~(TM) for any defined year using audit records of gas extraction flow rates and historical waste inputs.