Abstract
The practice of disposing of waste in conventional dry-tomb landfills is not sustainable. A sustainable alternative is the landfill bioreactor and its variations. Landfill bioreactor approach includes specific design and operation techniques to enhance waste degradation and landfill gas (LFG) production. Although this approach has been known to landfill researchers and practitioners for a few decades, there are only a few successful field-scale landfill bioreactors in operation. This paper provides a comprehensive review of technological challenges with landfill bioreactors and associated design and operational details. A key issue that should be addressed by a landfill bioreactor designer is moisture and gas movement within a waste matrix that changes its properties continuously in time and space. The design components such as the leachate collection and removal system (LCRS), leachate recirculation system, and gas collection system could be severely impacted if the traditional landfill design and operation practice is not modified to take into consideration the behavior of waste matrix in time and space. Considering that a landfill bioreactor can be used as a biomass waste to energy facility, this paper details the LFG generation processes, the factors affecting the LFG generation and theoretical LFG generation estimation techniques as well as the important design, construction and operational issues associated with landfill bioreactors.
Keywords: Anaerobic waste degradation, biocell, landfill bioreactors, leachate recirculation.
Graphical Abstract
Call for Papers in Thematic Issues
Advances of Heterocyclic Chemistry with Pesticide Activity
Global food safety and security will continue to be a global concern for the next 50 years and beyond. Plant diseases have had a significant impact on food safety and security throughout the entire food chain, from primary production to consumption. While conventional chemical pesticides have been traditionally used for ...read more
Calculation design of covalent/metal organic framework based catalysts
This research area combines theoretical computation and screening with machine learning for the design of covalent/metal organic framework-based catalysts, bridging the disciplines of organic chemistry, physical chemistry, computational chemistry, materials science, and machine learning. It covers several critical aspects: designing and synthesizing organic catalysts for improved performance, applying computational methods ...read more
Carbohydrates conversion in biofuels and bioproducts
Biomass pretreatment, hydrolysis, and saccharification of carbohydrates, and sugars bioconversion in biofuels and bioproducts within a biorefinery framework. Carbohydrates derived from woody biomass, agricultural wastes, algae, sewage sludge, or any other lignocellulosic feedstock are included in this issue. Simulation, techno-economic analysis, and life cycle analysis of a biorefinery process are ...read more
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
Related Books
Advances in Organic Synthesis
The Synthetic Methods, Structures, and Properties of the Ca-C σ Bond Organocalcium Containing Compounds
Advances in Organic Synthesis
Chemistry of Bipyrazoles: Synthesis and Applications
Advances in Organic Synthesis
Advanced Nanocatalysis for Organic Synthesis and Electroanalysis
Advances in Organic Synthesis
Advances in Organic Synthesis
25
3