Waste Composition in the Northeast U.S.: Implications for Resource Recovery

2010 ◽  
Author(s):  
Mark Bobman ◽  
John Culbertson
Keyword(s):  
Energy Recovery ◽  
Composition Studies ◽  
Resource Recovery ◽  
Limited Attention ◽  
Composition Analysis ◽  
Material Recovery ◽  
Waste Composition ◽  
Recovery Processes ◽  
Spending Patterns ◽  
Meaningful Data

Waste composition studies can provide meaningful data for design and operation of resource recovery processes. However, relatively limited attention has been devoted to energy recovery predicted by waste composition analysis, despite increasingly detailed analysis of various subsets of the municipal solid waste stream. Further, global economic conditions and markets have dramatically altered since 2008, resulting in significant changes in corporate, institutional and consumer spending patterns. Associated with these shifts in spending, as well as with longer-term trends in packaging and advances in residential and commercial recycling, the quantity and makeup of discarded materials has changed. The authors present data resulting from recent waste composition studies, and discuss potential impacts on the design and operation of material recovery systems.

Market waste composition analysis and resource recovery potential in Kumasi, Ghana

2021 ◽  
pp. 1-16
Author(s):  
Gloria Addae ◽  
Sampson Oduro-Kwarteng ◽  
Bernard Fei-Baffoe ◽  
Mizpah Ama Dziedzorm Rockson ◽  
Joseph Xavier Francisco Ribeiro ◽  
...  
Keyword(s):  
Resource Recovery ◽  
Composition Analysis ◽  
Waste Composition ◽  
Recovery Potential

Methods for household waste composition studies

2008 ◽  
Vol 28 (7) ◽  
pp. 1100-1112 ◽  
Author(s):  
Lisa Dahlén ◽  
Anders Lagerkvist
Keyword(s):  
Composition Studies ◽  
Household Waste ◽  
Waste Composition

Brewer’s spent grains as biofuels in combustion-based energy recovery processes: Evaluation of thermo-oxidative decomposition

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122955
Author(s):  
O. Gil-Castell ◽  
N. Mascia ◽  
C. Primaz ◽  
F. Vásqez-Garay ◽  
M.G. Baschetti ◽  
...  
Keyword(s):  
Energy Recovery ◽  
Oxidative Decomposition ◽  
Recovery Processes ◽  
Spent Grains

Performance Improvement of Membrane Energy Exchanger using Ultrasound for HVAC Application

2021 ◽  
pp. 1-29
Author(s):  
Gurubalan Annadurai ◽  
Maiya M.P. ◽  
Patrick Geoghegan ◽  
Carey Simonson
Keyword(s):  
Air Conditioning ◽  
Energy Recovery ◽  
Mass Transfer Process ◽  
Porous Membrane ◽  
Air Conditioning System ◽  
Energy Saving Potential ◽  
Recovery Processes ◽  
Additional Resistance ◽  
Membrane Energy ◽  
Ac Systems

Abstract Air conditioning (AC) systems consume the maximum proportion of the total electricity used in the building sector. The demand of AC systems is expected to increase exponentially in the coming years due to various reasons such as climate change, increasing affordability and increase in living floor space. Membrane-based liquid desiccant AC system along with energy recovery ventilating equipment is considered as a prospective alternative to the conventional air conditioning system (CACS) and has the potential to meet the increasing current and future AC demand in a sustainable manner. Its efficiency and energy saving potential with respect to CACS depends on the performance of the membrane-based dehumidifier, regenerator and energy recovery ventilating equipment which are commonly referred to as membrane energy exchangers (MEEs). MEE is an indirect exchanger type in which the working streams are separated by a porous membrane. This intermediate membrane creates an additional resistance for the heat and mass transfer process in the MEE. To reduce the resistance, this study experimentally and numerically investigates the influence of ultrasound on the performance of the MEE for dehumidification, humidification (applicable for membrane-based evaporative cooling and desiccant regeneration devices) and energy recovery processes. It is found that the vibration due to ultrasound has the potential to improve the effectiveness of the MEE by 55% in the dehumidification process and by 65% in the humidification and energy recovery processes.

Discussion of “Sample Weights in Solid Waste Composition Studies”

1971 ◽  
Vol 97 (3) ◽  
pp. 384-387
Author(s):  
Donald J. Hagerty ◽  
Joseph L. Pavoni ◽  
John E. Heer
Keyword(s):  
Solid Waste ◽  
Composition Studies ◽  
Sample Weights ◽  
Waste Composition

Energy Recovery Methods in Adsorption Refrigeration Units

2017 ◽  
Author(s):  
Andrzej Grzebielec ◽  
Adam Szelągowski ◽  
Adam Ruciński
Keyword(s):  
Energy Loss ◽  
Thermal Wave ◽  
Energy Recovery ◽  
Type Systems ◽  
Adsorption Refrigeration ◽  
Wave Type ◽  
Recovery Processes ◽  
Refrigeration Unit ◽  
The One ◽  
Heat And Mass Recovery

Adsorption refrigeration systems, as opposed to absorption type operate in a cyclic manner. The result is that at the beginning of each process must be fed into the adsorber state in which they will adsorb or desorb a refrigerant. In the case of two adsorbers at the start of a cycle, the one of the adsorber must be refrigerated while the second has to be heated. These processes are causing unnecessary energy loss. The aim of the work is to show how these processes can be connected and the heat received from one adsorber is transported to another adsorber. As part of the study, the heat and mass recovery processes will be considered. It turns out that in the thermal wave type systems, it is possible to recover more than 25% of the energy lost to bring the adsorber to the states in which they will operate efficiently to desorb and adsorb refrigerant. That is, it is possible to improve the efficiency of the adsorption refrigeration unit using the proposed improvements.

Waste Characteristics Study and Recycling Practice Trend at Tuanku Abdul Halim Mu’adzam Shah Engineering Complex, UiTM

2019 ◽  
Vol 797 ◽  
pp. 65-73
Author(s):  
Putri Faizura Megat Khamaruddin ◽  
Tiffany Anak Tony ◽  
Azil Bahari Alias ◽  
Sharifah Aishah Syed A. Kadir ◽  
Emma Qarmilla Suhaili
Keyword(s):  
Composition Studies ◽  
Economic Benefits ◽  
Solid Wastes ◽  
Ultimate Analysis ◽  
Conventional Management ◽  
Waste Composition ◽  
Recycling Potential ◽  
Waste Characteristics ◽  
Analysis Laboratory ◽  
Almost All

In Malaysia, waste management via recycling is highly promoted, however, recycling bins are not fully utilized as almost all the recycling bins provided are filled with other wastes. As institutional waste is a part of municipal solid waste (MSW), this composition study will be crucial to obtain a conventional management of the waste. In other words, waste composition studies are vital for a more effective and proper management of the waste generated. Hence, the objectives of the research are to analyse the trend of the recycle waste composition obtained during both semester session and semester break and to determine the recycle waste composition collected at UiTM engineering complex. Sorting of the solid wastes from the recycle bins are done manually before weighing of each waste category. The trend shows that paper has the highest composition both during semester session and semester break which is at 65% and 84% respectively followed by plastic bottle with 25% and 13% and aluminum can at 10% and 3%. A sample of recyclable wastes is taken from each recycle bins to the instrumental analysis laboratory for ultimate analysis. The ultimate analysis result shows 43.68% carbon and 1.27% nitrogen for paper wastes, which give a C/N ratio of 34.67. This indicates that paper wastes are compostable when mixed with yard wastes. In determining the economic benefits of recycling, potential revenue of RM78.37 can be obtained from a 10-week period of study and hence, if recycling practice is made compulsory, the revenue can be increased.

scholarly journals Carbon Footprint Assessment of Construction Waste Packaging Using the Package-to-Product Indicator

2020 ◽  
Vol 12 (23) ◽  
pp. 10094
Author(s):  
Jan Pešta ◽  
Markéta Šerešová ◽  
Vladimír Kočí
Keyword(s):  
Environmental Impacts ◽  
Environmental Assessment ◽  
Energy Recovery ◽  
Assessment Method ◽  
Environmental Footprint ◽  
Product Environmental Footprint ◽  
Material Recovery ◽  
Construction Products ◽  
Tile System ◽  
The Impact

The environmental impacts of buildings are based on the construction products, which together with their packaging can be assessed as one product system. To reduce the environmental impacts of buildings, the products and their packaging need to be optimised and analysed using environmental assessment. The purpose of this study is to assess the packaging related to the product according to the Life Cycle Assessment method. The environmental assessment was performed using the Product Environmental Footprint methodology, version 3.0. To compare the primary, secondary, and tertiary packaging, the results of the climate change indicator were used as a base to calculate the Package-to-Product (PtP) indicator. Among the considered scenarios to handle the waste packaging (landfilling scenario, material recovery scenario, energy recovery scenario, and the mixed scenario), the material recovery scenario is the most preferable and, for most of the packaging materials, the scenario with the lowest impact. Following the PtP result, the secondary packaging in the roof tile system has a significant share of the impact of the whole system (16% for the energy recovery scenario). Moreover, the results confirm the PtP indicator as the appropriate indicator to analyse the environmental impacts of construction products.

Quality control of waste to incineration - waste composition analysis in Lidköping, Sweden

2005 ◽  
Vol 23 (6) ◽  
pp. 527-533 ◽  
Author(s):  
Cecilia Mattsson Petersen ◽  
Per E.O. Berg ◽  
Lars Rönnegård
Keyword(s):  
Quality Control ◽  
Composition Analysis ◽  
Waste Composition

Hope and recovery: a scoping review

2014 ◽  
Vol 7 (2) ◽  
pp. 63-72 ◽  
Author(s):  
Knut Tore Sælør ◽  
Ottar Ness ◽  
Helge Holgersen ◽  
Larry Davidson
Keyword(s):  
Mental Health ◽  
Substance Use ◽  
Limited Attention ◽  
Research Activity ◽  
Content Type ◽  
Recovery Processes ◽  
Ovid Medline ◽  
Substance Use Problems ◽  
Literature Searches ◽  
Broad Approach

Purpose – Hope is regarded as central to recovery processes. The phenomenon along with its implications for research and practice has, however, gained limited attention within the fields of mental health and substance use. The purpose of this paper is to explore how hope, and what may inspire it, is described within the literature by persons experiencing co-occurring mental health and substance use problems. Design/methodology/approach – The method chosen when conducting this literature review was a scoping study. This allows for a broad approach, aiming to examine research activity and identifying potential gaps within existing literature. Searches were conducted in EMBASE Ovid, PsychINFO Ovid, MEDLINE Ovid, CINAHL Ebsco, SveMed+ and Brithish Nursing Index. Findings – The authors included five articles and one book. None of these presented first-hand experiences of hope and there appears to be a gap in the literature. All included material underlined the importance of the phenomenon to those experiencing co-occurring mental health and substance use problems. Originality/value – Hope seems as important to people experiencing co-occurring problems as to anyone else. There appears to be a need for further research on how persons experiencing co-occurring problems perceive hope and what may inspire it. Hope and what people hope for take many forms and can arise unexpectedly. Practitioners need to take in account the diversity of the phenomenon and find ways of inspiring hope in collaboration with those in need of support.

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