Determination of oxygen consumption for landfilled municipal solid wastes.

Waste Manag Res

Laboratory of Solid Waste Disposal Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan.

Published: August 2003

One of the serious problems of landfilling is the long time required for stabilisation. Nevertheless, site aeration proved to be effective to attenuate such problems. Oxygen consumption rate and air permeability/diffusion are the key parameters to set up the best allocation and design for vertical pipes to promote aeration and hence stabilisation of waste. This paper presents an investigation into the oxygen consumption for various landfilled wastes in Japan such as incineration ash, incombustible waste and under-sieve fraction of shredded bulky waste. Fresh waste sampled directly from processing facilities, as well as old waste sampled from landfill sites, were subjected to analytical determination and measurement of oxygen consumption. Bulky waste showed the highest oxygen consumption, however the old waste revealed a significant loss of biodegradability potential and lower oxygen consumption records. The oxygen consumption for short testing periods (10-days), tends to increase with the ignition loss (IL). The experimental data of respiratory tests (for old waste) were modelled and the fitting parameters are correlated to waste characteristics.

Download full-text PDF

Source
http://dx.doi.org/10.1177/0734242X0302100407DOI Listing

Publication Analysis

Top Keywords

oxygen consumption
28
waste
9
consumption landfilled
8
bulky waste
8
waste sampled
8
consumption
7
oxygen
6
determination oxygen
4
landfilled municipal
4
municipal solid
4

Similar Publications

The mechanisms underlying the impact of probiotic supplementation on health remain largely elusive. While previous studies primarily focus on the discovery of novel bioactive bacteria and alterations in the microbiome environment to explain potential probiotic effects, our research delves into the role of living Lactiplantibacillus (formerly known as Lactobacillus) and their conditioned media, highlighting that only the former, not dead bacteria, enhance the healthspan of Caenorhabditis elegans (C. elegans).

View Article and Find Full Text PDF

Microalgal-bacteria biofilm shows great potential in low-cost greywater treatment. Accurately predicting treated greywater quality is of great significance for water reuse. In this work, machine learning models were developed for simulating and predicting linear alkylbenzene sulfonate (LAS) removal using 152-days collected data from a battled oxygenic microalgal-bacteria biofilm reactor (MBBfR).

View Article and Find Full Text PDF

Impact of Panvascular Disease on Exercise Capacity and Clinical Outcomes in Patients with Heart Failure with Reduced Ejection Fraction.

CJC Open

December 2024

Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China.

Background: The aim of this study was to assess the impact of panvascular disease (PVD) on quality of life (QOL), exercise capacity, and clinical outcomes, in patients with heart failure (HF) with reduced ejection fraction (HFrEF).

Methods: We performed a post hoc analysis of the Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training (HF-ACTION; NCT00047437). Patients with PVD were defined as those having coronary heart disease, stroke, or peripheral vascular disease at baseline.

View Article and Find Full Text PDF

P46Shc Inhibits Mitochondrial ACAA2 Thiolase, Exacerbating Mitochondrial Injury and Inflammation in Aging Livers.

Am J Pathol

December 2024

Division of Gastroenterology and Hepatology, Stanford University, Palo Alto, California; Palo Alto VA, Palo Alto, California. Electronic address:

Mitochondrial maladaptation and dysfunction contribute to the progression of metabolic dysfunction-associated steatohepatitis (MASH). The authors recently implicated the induction of Shc in progressive MASH during aging and the cytoplasmic p52Shc isoform in the activation of redox enzyme NOX2. The mitochondrial Shc isoform p46Shc was shown to repress acetyl-coenzyme A acyltransferase 2 (ACAA2) in vitro.

View Article and Find Full Text PDF

Cardiac sex-difference functional studies have centred on measurements of twitch force and Ca dynamics. The energy expenditures from these two cellular processes: activation (Ca handling) and contraction (cross-bridge cycling), have not been assessed, and compared, between sexes. Whole-heart studies measuring oxygen consumption do not directly measure the energy expenditure of these activation-contraction processes.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!