Advertisement

Topics

A novel aerobic sulfate reduction process in landfill mineralized refuse.

08:00 EDT 8th May 2018 | BioPortfolio

Summary of "A novel aerobic sulfate reduction process in landfill mineralized refuse."

It is thought that mineralized refuse could be excavated from almost-full landfill sites to provide space for the increasing burden of municipal solid waste. When excavating, however, the HS emissions from the mineralized waste need to be considered carefully. In an attempt to understand how HS emissions might change during this excavation process, we carried out a series of tests, including exposing anaerobic mineralized refuse to oxygen, isolating and determining possible functional bacteria, and characterizing the electron donors and/or acceptors. The results showed that HS would be released when landfill mineralized refuse was exposed to oxygen (O), and could reach concentrations of 6 mg m, which was 3 times the concentrations of HS released from anaerobic mineralized refuse. Sulfur-metabolized microorganisms accounted for only 0.5% of the microbial functional bacteria (MFB) derived from the mineralized refuse when exposed to O for 60 days, and SRB were not present. The MFB maintained HS production by aerobic sulfate reduction using SO and SO as electron acceptors, and sulfate-reducing rates of 16% and 55%, respectively, were achieved. Lactate and SO were the preferred electron donor and acceptor, respectively. By enhancing the carbon source and electron transfer, MFB may undergo strong aerobic sulfate reduction even at low abundances of sulfur-metabolized microorganisms.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 174-181

Links

DeepDyve research library

PubMed Articles [11843 Associated PubMed Articles listed on BioPortfolio]

Process integration for biological sulfate reduction in a carbon monoxide fed packed bed reactor.

This study examined immobilized anaerobic biomass for sulfate reduction using carbon monoxide (CO) as the sole carbon source under batch and continuous fed conditions. The immobilized bacteria with be...

Sludge reduction by a micro-aerobic hydrolysis process: A full-scale application and sludge reduction mechanisms.

The process performance of a full-scale sludge process reduction activated sludge (SPRAS) system in long-term operation were investigated by inserting a micro-aerobic tank and a clarifier before conve...

A novel combined process for efficient removal of Se(VI) from sulfate-rich water: Sulfite/UV/Fe(III) coagulation.

The efficient removal of Se(VI) from sulfate-rich water is challenging as most reported processes last for hours to days. In this study, a combined sulfite/UV/Fe(III) coagulation process was proposed ...

Stabilized landfill leachate treatment using heterogeneous Fenton and electro-Fenton processes.

In the present study, stabilized landfill leachate treatment by heterogeneous Fenton and electro-Fenton (EF) was carried out. Iron-manganese binary oxide loaded zeolite (IMZ) was used as a catalyst fo...

Complete dechlorination and mineralization of pentachlorophenol (PCP) in a hydrogen-based membrane biofilm reactor (MBfR).

Complete biodegradation and mineralization of pentachlorophenol (PCP), a priority pollutant in water, is challenging for water treatment. In this study, a hydrogen (H)-based membrane biofilm reactor (...

Clinical Trials [5287 Associated Clinical Trials listed on BioPortfolio]

Study of the Effects of a Mineralized Water Ingestion Upon Lipidic Absorption Mechanisms

The principal objective of this research is the evaluation of the effect of mineralized water consumption upon evolution of LDL Cholesterol and triglycerides, compared to a low mineralized...

Posterior Maxillary Ridge Augmentation With Sinus Lift Using Mineralized Plasmatic Matrix Versus Autogenous Bone Graft

Using growth factors obtained from patient's venous blood mixed with particulate autogenous bone the study compares bone gain by implant with gold standards in sinus Lift procedures for fu...

Evaluation of Mineralized Plasmatic Matrix Prepared From Allogenic Bone Graft in Alveolar Cleft Closure: A Prospective Randomized, Triple Blinded, Parallel Clinical Trial

The aim of this trial is to figure out the efficiency of Mineralized Plasmatic Matrix prepared from allogenic bone graft on cleft alveolus and oro-nasal fistula closure, adequate bone volu...

Augmentation of Maxillary Horizontal And Vertical Bone Deficiency Using Mineralized Plasmatic Matrix

A new technique of grafting introduce called Mineralized plasmatic matrix. This technique can be used in grafting in anterior zone giving a good results and bone substitution occur using a...

Effects of Exercise Modality on Abdominal Obesity and Health Risk Factors in Older Men and Women

The prevalence of abdominal obesity in the elderly is increasing at alarming rates and thus, requires immediate attention. By comparison to younger adults, obesity reduction in the elderl...

Medical and Biotech [MESH] Definitions

3'-Phosphoadenosine-5'-phosphosulfate. Key intermediate in the formation by living cells of sulfate esters of phenols, alcohols, steroids, sulfated polysaccharides, and simple esters, such as choline sulfate. It is formed from sulfate ion and ATP in a two-step process. This compound also is an important step in the process of sulfur fixation in plants and microorganisms.

Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.

A genus of gram-negative, rod-shaped bacteria that oxidizes nitrites to nitrates. Its organisms occur in aerobic environments where organic matter is being mineralized, including soil, fresh water, and sea water.

An enzyme that catalyzes the activation of sulfate ions by ATP to form adenosine-5'-phosphosulfate and pyrophosphate. This reaction constitutes the first enzymatic step in sulfate utilization following the uptake of sulfate. EC 2.7.7.4.

An arylsulfatase that catalyzes the hydrolysis of the 4-sulfate groups of the N-acetyl-D-galactosamine 4-sulfate units of chondroitin sulfate and dermatan sulfate. A deficiency of this enzyme is responsible for the inherited lysosomal disease, Maroteaux-Lamy syndrome (MUCOPOLYSACCHARIDOSIS VI). EC 3.1.6.12.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article