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Antibiotic resistant bacteria found in fertilizer
May 29, 2009Vancomycin resistant enterococci (VRE) have been found in sewage sludge, a by-product of waste-water treatment frequently used as a fertilizer. Researchers writing in the open access journal Acta Veterinaria Scandinavica point out the danger of antibiotic resistance genes passing into the human food chain.
Leena Sahlström, from the Finnish Food safety Authority, worked with a team of researchers from the Swedish National Veterinary Institute to study sewage sludge from a waste-water treatment plant in Uppsala, Sweden. She said, "Antimicrobial resistance is a serious threat in veterinary medicine and human healthcare. Resistance genes can spread from animals, through the food-chain, and back to humans. Sewage sludge may act as one link in this chain".
The researchers collected sludge from the plant every week for four months, for a total of 77 samples. Of these, 79% tested positive for the drug resistant superbugs. Although VRE themselves are not generally considered to be highly pathogenic, the danger is that they may pass on their resistance genes to other bacteria. Sahlström concludes, "Our results demonstrate a need for more efficient hygienic treatment of sewage sludge, in order to avoid possible spread of antimicrobial resistance through use of sewage sludge on arable land".
BioMed Central
BioMed Central
Sewage Sludge Current Events and Sewage Sludge News RSSBehavior modification could ease concerns about nanoparticles
In an advance that could help ease health and environmental concerns about the emerging nanotechnology industry, scientists are reporting development of technology for changing the behavior of nanoparticles in municipal sewage treatment plants - their main gateway into the environment.
Cholesterol-busting bug with a taste for waste
A novel species of bacteria with cholesterol-busting properties has been discovered by scientists at the Universidad Complutense de Madrid, Spain. Dr Oliver Drzyzga and colleagues isolated the new bug, called Gordonia cholesterolivorans, from sewage sludge.
NOAA Report Calls Flame Retardants Concern to U.S. Coastal Ecosystems
NOAA scientists, in a first-of-its-kind report issued today, state that Polybrominated Diphenyl Ethers (PBDEs), chemicals commonly used in commercial goods as flame retardants since the 1970s, are found in all United States coastal waters and the Great Lakes, with elevated levels near urban and industrial centers.
Adding high doses of sludge to neutralise soil acidity not advisable
A University of the Basque Country PhD thesis has analysed the application of waste sludge from EDAR (Estación Depuradora de Aguas Residuales - Waste Water Purification Plant) to acid soils which have limited capacity for neutralising the acidity.
New use for human hair
Agricultural crop production relies on composted waste materials and byproducts, such as animal manure, municipal solid waste composts, and sewage sludge, as a necessary nutrient source.
More flexible method floated to produce biofuels, electricity
Researchers are proposing a new "flexible" approach to producing alternative fuels, hydrogen and electricity from municipal solid wastes, agricultural wastes, forest residues and sewage sludge that could supply up to 20 percent of transportation fuels in the United States annually.
Drinking water in Gaza Strip contaminated with high levels of nitrate
Palestinian and German scientists have recommended to the authorities in the Gaza Strip that they take immediate measures to combat excessive nitrate levels in the drinking water.
Computer modeling could help chlorine-hungry bacteria break down toxic waste
Cornell researchers hope to learn how certain bacteria that break down pollutants do their job and then to make them more effective in cleaning up toxic wastes.
Better sludge through metagenomics
Few stop to consider the consequences of their daily ablutions, the washing of clothes, the watering of lawns, and the flush of a toilet. However, wastewater treatment-one of the cornerstones of modern civilization-is the largest microbially-mediated biotechnology process on the planet.
DOE JGI releases experimental metagenomics data management & analysis system
To tackle the computational challenges of analyzing the complex world of microbial communities, the U.S. Department of Energy Joint Genome Institute (DOE JGI) has released to the worldwide research community IMG/M, an experimental metagenome data management and analysis system.
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Anaerobic Sludge Digestion (Water Pollution Control Federation//Manual of Practice) by Water Environment Federation (Author) | |
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Microscopic Examination of the Activated Sludge Process (Wastewater Microbiology) by Michael H. Gerardi (Author) A practical, hands-on guide to using the microscope to analyze activated sludge in wastewater treatment The microscope provides the wastewater treatment plant operator with a special tool for process control and troubleshooting of the activated sludge process. The operator can "read" the organisms and use them as "bioindicators" to determine if operational conditions are acceptable or not acceptable. Written for plant operators and technicians and avoiding unnecessary technical jargon, Microscopic Examination of the Activated Sludge Process explores and explains: Microscopy, including microscopic measurements and techniques Directions for preparing and applying microbiological stains and immobilizing agents and techniques for preparing wet mounts and... |
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Grindex 81232800005 1.1hp 1ph 115v Solid Professional Sludge Pump by Grindex Submersible Drainage Pumps Type: Sump Operation: Non-Automatic Voltage: 115 Horsepower: 1 Amperage Rating: 9.8 | |
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Activated Sludge (Manual of Practice: Operations and Maintenance, No. Om-9) (Manual of Practice. Operations and Maintenance, No. Om-9.) by Water Environment Federation (Author) Completely revised - peer reviewed -- the complete authority! This second edition of Activated Sludge, MOP OM-9, represents the most complete information source for the activated sludge process. Well-established design standards based on empirical data have evolved over the years. Despite these advances, poor process performance can still be present problems for many plants. The objective of this manual is to help wastewater professionals acquire a greater knowledge of the process, solve performance problems, and improve operations. This manual serves as the Federation’s primary reference for operation of the activated sludge process. It includes the most up to date information on: Process control to include strategies for controlling the biomass inventory, Energy use and... |
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Determination of Metals and Anions in Soils, Sediments and Sludges by T R Crompton (Author) Here is the first volume to comprehensively discuss the range of methods available for the analysis of metal and anions in soils, river and marine sediments, and industrial sludges. A special feature is its coverage of solid sewage, which is increasingly being applied to land as fertilizer. The reader is presented with details of the methods of analysis available, their applicability in certain environments, advantages and disadvantages of one method against another, likely causes of interference, and the sensitivity of methods and detection limits. |
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Epidemiological Studies of Risks Associated with the Agricultural Use of Sewage Sludge: Knowledge and needs (EUR) by J.C. Block (Editor), A.H. Havelaar (Editor), P. L'Hermite (Editor) Proceedings of a Round Table Seminar organized by the Commission of the European Communities, Directorate-General for Science, Research and Development Environment Research Programme, held in Metz, France, 21-23 May 1985. |
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Municipal Sewage Sludge: Management, Processing and Disposal, Volume IV (Water Quality Management Library) by PAUL BISHOP (Author) |
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Treatment and Disposal of Wastewater Sludge by P.Aarne Vesilind (Author) | |
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Manual for activated sewage sludge treatment by Brian L Goodman (Author) | |
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Sewage sludge in agriculture (Technical booklet) by [The Association] (Publisher) |
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