Last edited by Kadal
Sunday, July 26, 2020 | History

3 edition of The effect of radioactive substances on sludge digestion found in the catalog.

The effect of radioactive substances on sludge digestion

Robert Harold Harmeson

The effect of radioactive substances on sludge digestion

by Robert Harold Harmeson

  • 80 Want to read
  • 31 Currently reading

Published in Urbana .
Written in English

    Subjects:
  • Sewage -- Purification,
  • Radioactivity

  • Edition Notes

    Other titlesSludge digestion.
    Statementby R. H. Harmeson [and] J. C. Dietz. [A report of an investigation conducted by the Engineering Experiment Station, in cooperation with United States Atomic Energy Commission.
    ContributionsDietz, Jess Clay, joint author.
    Classifications
    LC ClassificationsTD755 .H3
    The Physical Object
    Pagination40 p.
    Number of Pages40
    ID Numbers
    Open LibraryOL213227M
    LC Control Numbera 57009103
    OCLC/WorldCa13788277

    This paper deals with the application of a two-phase anaerobic digestion process where the first phase operates at extreme thermophilic conditions (70 °C). The first reactor was fed with waste activated sludge and operated continuously at a hydraulic retention time of 1, 2, 3, and 5 days. Pretreated sludge was characterized by high concentrations of soluble COD (30−40% of the influent.   During two-phase sludge anaerobic digestion, sludge is usually hydrolyzed and acidified in the first phase, then methane is produced in the second stage. To get more methane from sludge, most studies in literature focused on the increase of sludge hydrolysis. In this paper a different sludge pretreatment method, i.e., pretreating sludge at pH 10 for 8 d is reported, by which both waste Cited by:

    The effect of low power ultrasound on aerobic/anoxic digestion of activated sludge was investigated. First, dehydrogenate activity (DHA) and special oxygen uptake rate (SOUR) were detected to indicate the change of biological activity of sludge induced by by: 1. Sludge (sluj): The settleable solids separated from liquids, during processing or deposits on bottoms of streams or other bodies of water. Sludge Digestion: A process by which organic matter in sludge is gasified, liquefied, mineralized, or converted to a more stable form by anaerobic (more common) or aerobic organisms.

    Wastewater treatment, the removal of impurities from wastewater before they reach aquifers or natural bodies of water. Wastewater treatment is a major element of water pollution control. Learn more about the types of wastewater treatment systems, the technologies used, and the history of treating wastewater. Start studying Operation of a Wastewater Treatment Facility Volume II. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Aerobic sludge digestion tends to produce more noxious odors than anaerobic sludge digestion Toxic substances illegally or accidentally discharged into the collection system or plant.


Share this book
You might also like
Fox against Fox!!!

Fox against Fox!!!

Sixteenth autumn exhibition.

Sixteenth autumn exhibition.

Pharmaceuticals industry.

Pharmaceuticals industry.

Report by Kenneth Maclennan to the Conference of Missionary Societies in Great Britain and Ireland on a visit to the Far East, January-July, 1934.

Report by Kenneth Maclennan to the Conference of Missionary Societies in Great Britain and Ireland on a visit to the Far East, January-July, 1934.

costs of construction of new metallurgical plants in the U. S. S. R.

costs of construction of new metallurgical plants in the U. S. S. R.

Seasonable thoughts on the state of religion in New-England

Seasonable thoughts on the state of religion in New-England

Educational C.C.T.V. in Glasgow

Educational C.C.T.V. in Glasgow

plague of the Philistines, and other medical-historical essays

plague of the Philistines, and other medical-historical essays

Exploring visual storytelling

Exploring visual storytelling

The two sides of the pass =

The two sides of the pass =

State of the accounts of the Hon. George Wall, Esquire, sub-lieutenant of Bucks County, from 20th March 1780, to the 1st April 1783.

State of the accounts of the Hon. George Wall, Esquire, sub-lieutenant of Bucks County, from 20th March 1780, to the 1st April 1783.

BSO

BSO

Tiger trails in Assam.

Tiger trails in Assam.

In contrast

In contrast

Statistics and quality control for the workplace

Statistics and quality control for the workplace

The effect of radioactive substances on sludge digestion by Robert Harold Harmeson Download PDF EPUB FB2

OCLC Number: Notes: University of Illinois bulletin, v. 54, no. TAI7 no. bound with no. subsequent to publication. Other articles where Sludge digestion is discussed: wastewater treatment: Digestion: Sludge digestion is a biological process in which organic solids are decomposed into stable substances.

Digestion reduces the total mass of solids, destroys pathogens, and makes it easier to dewater or dry the sludge. Digested sludge is inoffensive, having the appearance and characteristics of. Use of radioactive substances in medical applications, research centers, operation of nuclear plants, and recycling of used fuel produces radioactive waste which contains radionuclides with average-to-high half-life often formed through The effect of radioactive substances on sludge digestion book used fuels.

Some of these substances are highly soluble in water and may enter the human body. Our study aims to identify the environmental impacts of sewage sludge treatment and disposal routes in order to highlight which system is the most suitable from an environmental point of view.

A focus was done on the part of each process in the whole impact for each studied scenario so as it will be possible to. THE PRESENCE OF RADIONUCLIDES IN SEWAGE SLUDGE AND THEIR EFFECT ON HUMAN HEALTH Michael J.

Brennan December, For more information or additional copies of this report contact: Division of Radiation Protection Airdustrial Center, Building 5 P. Box Olympia, Washington SCAN FAX Debra McBaugh, Head.

Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage is mostly water with lesser amounts of solid material removed from liquid sewage. Primary sludge includes settleable solids removed during primary treatment in primary ary sludge separated in secondary clarifiers includes treated sewage sludge.

The Presence of Radionuclides in Sewage Sludge and their Effect on Human Health Questions & Answers Page 2 What is a radionuclide.

Radionuclide refers to the nucleus of a radioactive atom. For the purpose of this report, radionuclide and radioisotope can be considered synonymous. A protease-secreting bacteria was used to pretreat municipal sewage sludge to enhance aerobic digestion.

To enhance the accessibility of the sludge to the enzyme, extracellular polymeric substances were removed using citric acid thereby removing the flocs in the sludge.

The conditions for the bacterial pretreatment were optimized using response surface by:   As antibiotic resistance continues to spread globally, there is growing interest in the potential to limit the spread of antibiotic resistance genes (ARGs) from wastewater sources.

In particular, operational conditions during sludge digestion may serve to discourage selection of resistant bacteria, reduce horizontal transfer of ARGs, and aid in hydrolysis of by: Anaerobic Digestion Fundamentals Anaerobic digestion is a sustainability staple at resource recovery facilities.

In addition to performing vital solids treatment processes such as stabilization and volatile solids reduction, anaerobic digestion also generates biogas that can be used at the resource recovery facility to generate heat and power. The effect of type of sludge treatment (aerobic or anaerobic) on the concentrations of residual pharmaceuticals in stabilized sludge was reported to be compound-dependent [12, 13], although the.

The three main types of emissions from radioactive substances are: Alpha Radiation, Beta Radiation and Gamma the three, the effect of alpha particles (which is, in effect, a helium atom) is the lowest and the gamma rays, the most.

This study investigated ultra-high solid anaerobic digestion (35°C and days HRT) of sewage sludge and ammonia stripping of digested sludge for the removal/recovery and inhibition of ammonia.

Sludge is a toxic soup of heavy metals, man-made organics, (E.G. PCBs, pesticides), detergents (surficants), pathogens, and radioactive contaminants. The decision to combine residential and industrial wastes in a central treatment plant has brought us to the present problem of toxic sludge disposal.

Countries around the world have either banned or stepped up tests on imports from quake-stricken Japan after radioactive substances were Author: Reuters Editorial. Radioactive sludge has been transferred out of the world’s oldest nuclear fuel pond for the very first time, marking a historic achievement in the decades-long programme to clean up Sellafield.

The Radioactive Sludge effect was created by syndrome in Filter Forge, a Photoshop plug-in. Radioactive sludge. control slude colour, reflectivity, detail, luminosity and chunk density:D. Introduction. Anaerobic digestion (AD) is an important technology in the treatment of waste activated sludge (WAS), because it can reduce the amount of sludge solids for subsequent disposal and recover methane as an energy source for lowering wastewater treatment plant operating cost (Appels et al., ).Two prominent problems with conventional anaerobic digestion are poor dewatering Cited by: 3.

During the regulatory development process, questions related to radioactivity in sewage sludge were presented: (a) What radioactive compounds are present in sewage sludge and at what levels; Is there the potential for health problems from the reuse and disposal of such sludges; and (c) Are there ways of limiting r~dioactivity in sewage sludges.

Anaerobic Sludge Digestion: Operations Manual Paperback – Septem by U.S. Environmental Protection Agency (Creator) out of 5 stars 1 rating. See all 2 formats and editions Hide other formats and editions. Price New from Used from 5/5(1).

@article{osti_, title = {Effect of ammoniacal nitrogen on one-stage and two-stage anaerobic digestion of food waste}, author = {Ariunbaatar, Javkhlan, E-mail: [email protected] and UNESCO-IHE Institute for Water Education, Westvest 7, AX Delft and Scotto Di Perta, Ester and Panico, Antonio and Frunzo, Luigi and Esposito, Giovanni and Lens, Piet N.L.

and Pirozzi, [email protected]{osti_, title = {Optimisation of sewage sludge anaerobic digestion through co-digestion with OFMSW: Effect of collection system and particle size}, author = {Silvestre, Gracia and Ainia, Departamento de Medio Ambiente, Bioenergía e Higiene Industrial, Paterna, Valencia and Bonmatí, August and Fernández, Belén}, abstractNote = {Highlights: • Methane production rate.1.

Introduction. Waste Activated Sludge (WAS) generated during wastewater treatment should be stabilized sufficiently to reduce its organic content, pathogen contamination and odor problems prior to ultimate disposal (Vlyssides and Karlis,Fytili and Zabaniotou,Li et al., ).The most common methods of sludge stabilization are biological processes of anaerobic digestion and Cited by: