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Waste and resource management
Published in Stephen Battersby, Clay's Handbook of Environmental Health, 2023
The principal methods are: Incineration or other energy recovery techniques;Controlled landfill;Composting and anaerobic digestion (AD). Development of other techniques, principally mechanical-biological treatment (MBT) is being promoted because of the opposition to the more conventional methods of recovery and disposal but ultimately most of these newer techniques rely on the pre-treatment of wastes in order to utilise these three conventional methods. Therefore, mechanical-biological treatment (MBT), for example, provides processing options for separating of certain recyclable wastes, processing wastes for fuel use and treating organic wastes by aerobic or anaerobic methods, mainly as a pre-treatment technique prior to landfill. The potential market for SRF (solid recovered fuel), which has a recognised specification and also RDF (refuse derived fuel) should improve as the use of conventional fossil fuels decreases and more incentives are provided for renewable energy sources. Indeed, there are a few UK energy recovery plants which use RDF as their feedstock rather than mixed residual waste. However, the potential market opportunities for CLO (compost-like output) from this type of treatment are limited due to potential contamination problems.
Effect of aeration strategy on moisture removal in bio-drying process with auto-controlled aeration system
Published in Drying Technology, 2022
Mechanical-biological treatment (MBT) has been used as an alternative of municipal solid waste (MSW) pretreatment for reduction of final disposal of biodegradable waste and improvement of energy recovery via production of solid recovered fuel (SRF). Generally, MBT is a system that combines several mechanical separation processes for recovery of combustible materials and one or two biological treatment processes for stabilization of organic materials.[1] There are various configurations of MBT by changing the order of mechanical and biological processes due to its goals or types of input waste.[2] In the case consisted of only separation processes for SRF production, the mechanically sorted residue is usually disposed of by incineration or landfill.[3]
Estimation of long-term methane emissions from Mechanical-Biological Treatment waste through biomethane potential test
Published in Environmental Technology, 2022
Verónica Elizabeth Córdoba, Estela Mercedes Santalla
Mechanical-Biological Treatment (MBT) is a technology that combines mechanical separation and biological process to reduce the environmental impacts of the landfilled waste [1]. After this treatment, the organic stream is landfilled or used as cover material in an active landfill [2,3]. The efficiency of the biological treatment is usually estimated through the remainder methane emissions emitted when MBT waste is disposed on land [4,5]. Therefore, the challenge under the current global scenario of greenhouse gases (GHG) mitigation is to improve the methane emission estimations of MBT landfilled waste.