Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This dissertation by John Laurence Esguerra explores strategies to enhance economic performance and mitigate climate impact through landfill mining in Europe. It addresses the integration of resource recovery with site remediation, examining factors such as waste composition, policy, and market conditions. The study develops a factor-based method to create scenarios for evaluating economic and climate outcomes, offering insights for stakeholders like investors, landfill practitioners, and policymakers. The research highlights that while landfill mining is often more beneficial for the climate, its economic viability is limited. The work underscores the importance of tailored strategies and policy instruments to improve landfill mining practices.

Resource recovery facilities. --- Environmental management.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Oil field flooding --- Secondary recovery of oil --- Mathematical models. --- Oil wells --- Water flooding of oil wells --- Water injection in oil fields --- Oil fields --- Petroleum --- Repressuring (Petroleum engineering) --- Flooding --- Production methods --- Repressuring --- Secondary recovery operations --- Secondary recovery

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The level of performance of an electric utility is determined by the soundness of its financial situation, the efficiency of its technology, and the quality of service it provides customers. Its financial underpinning is a balance of costs and revenue (from customer payments, government, and other sources). But revenue is not as straightforward as it might seem. The concept of foregone cash addresses the 'cash on the table' that pays for operations and servicing debt (revenue collected divided by the cost of operations and debt). The problem is the table may not have all the cash that ought to be there, such as money owed because of nonpayment's by customers and money lost through inefficiencies in power generation or delivery. Consequently, there is a latent revenue that, if fixed, can provide vital improvements to a utility's financial performance. This note analyzes the elements involved in understanding foregone cash in the context of cost recovery.

Cost Recovery --- Electric Power --- Energy --- Energy Policies and Economics --- Energy Sector Regulation --- Power Sector Reform --- Utilities

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Unconventional gold recovery process from hard rock, in opposition to alluvial gold, using neither gravity nor leaching processes but only comminution and flotation are very rare, although they allow a cost-effective concentration of precious metals. The main problem faced by this type of operation in case of low gold and silver grade such as the Khan Krum deposit near Krumovgrad town in south Bulgaria is the ability to recover a sufficient amount of precious metals that are finely disseminated (95% finer than 100µm). The present work aims to investigate the effect of ore mineralogy on this recovery by focusing on gold occurrences (mainly electrum) and clay minerals impact on plant flotation performances. The study is based on characterization of plant stream samples in order to comment their size distribution, mineralogy and precious metals grains characteristics with SEM analysis. Unfortunately, the low samples grade implied a small number of precious metals grains observed per polish section making statistical analysis of electrum particles irrelevant. However, it was possible to demonstrate that Au:Ag grades ratio increases in concentrate streams, because the more gold is contained in the electrum the better its flotation. Flotation tests were performed on crushed run of mine samples to test new collector mixture and evaluate the impact of fines particles on flotation metallurgical answer. Low silver grade (<1ppm) in flotation tailings did not provide accurate silver recovery calculation. Kaolinite presents mainly in slimes play an important role on froth stability and concentrate grade but has almost no impact on precious metals recoveries. The use of AERO MAXGOLD 900 which has an affinity for precious metals stronger than xanthate could be a way to enhance concentrate grade but do not allow significant recovery amelioration.

Gold --- Silver --- Flotation --- Recovery --- Clays --- Ingénierie, informatique & technologie > Géologie, ingénierie du pétrole & des mines

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Mechanical chemistry. --- Recycling (Waste, etc.) --- Conversion of waste products --- Recovery of natural resources --- Recovery of waste materials --- Resource recovery --- Waste recycling --- Waste reuse --- Conservation of natural resources --- Refuse and refuse disposal --- Energy conservation --- Salvage (Waste, etc.) --- Waste products --- Mechanically induced chemical reactions --- Mechanochemistry --- Stress induced chemical reactions --- Chemistry, Physical and theoretical