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Tuesday, November 3, 2020 | History

1 edition of Heat treatment of organics for increasing anaerobic biodegradability found in the catalog.

Heat treatment of organics for increasing anaerobic biodegradability

Heat treatment of organics for increasing anaerobic biodegradability

annual progress report : June 16, 1979 to August 31, 1980

by

  • 92 Want to read
  • 29 Currently reading

Published by Solar Energy Research Institute, Available from National Technical Information Service in Golden, Colo, Springfield, Va .
Written in English

    Subjects:
  • Biomass energy,
  • Hydrolysis,
  • Methane

  • Edition Notes

    StatementP.J. Colberg ... [et al.] ; prepared for the U.S. Department of Energy
    SeriesSERI/TR -- 98174-1
    ContributionsColberg, P. J, United States. Dept. of Energy, Solar Energy Research Institute
    The Physical Object
    Paginationxiii, 92 p. :
    Number of Pages92
    ID Numbers
    Open LibraryOL15477462M

    active carbon for increased removal of residual organics (1). As early as , experiments (2) with active carbon as a flocculation aid of wastewater solids were conducted and although active carbon has been used in wastewater treatment for many years, the mech-. EPA//A/ RESPIROMETRIC METHODS FOR DETERMINATION OF BIODEGRADABILITY AND BIODEGRADATION KINETICS FOR HAZARDOUS ORGANIC POLLUTANT COMPOUNDS Henry H. Tabak U.S. Environmental Protection Agency Office of Research and Development Risk Reduction Engineering Laboratory Cincinnati, OH and Sanjay Desai and Rakesh Govind Department of . Saturated and aromatic hydrocarbons are formed over geologi-cal periods by the reactions of buried biomass, especially in marine sediments. Locally intense hydrocarbon production has led to the formation of oil and gas accumulations [3]. Saturated and aromatic hydrocarbons comprise on average ~80% (by mass) of oil constituents.


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Heat treatment of organics for increasing anaerobic biodegradability Download PDF EPUB FB2

@article{osti_, title = {Heat treatment of organics for increasing anaerobic biodegradability. Annual progress report, June 1, Civil engineering technical report No. }, author = {Healy, Jr, J B and Owen, W F and Stuckey, D C and Young, L Y and McCarty, P L}, abstractNote = {This report represents the results of the first year of study on the heat treatment of.

Get this from a library. Heat treatment of organics for increasing anaerobic biodegradability: annual progress report: J to Aug [P J Colberg; United States.

Department of Energy.; Solar Energy Research Institute.;]. @article{osti_, title = {Thermochemical pretreatment of lignocellulosic biomass for increasing anaerobic biodegradability to methane}, author = {Baugh, K and Bachmann, A and Beard, V L and Levy, J and McCarty, P L}, abstractNote = {This is a report of the second-year activities of a three-year study to determine the feasibility of using heat pretreatment to increase the anaerobic.

Greater understanding of the mechanisms involved in conversion of organics by Heat treatment of organics for increasing anaerobic biodegradability book treatment, and of the ability of microorganisms to ferment the various end-products should help to devise systems for significantly increasing the yield of methane from anaerobic fermentation of waste by: constants is due to the uncertainty regarding the inherent anaerobic biodegradability and/or lack of sufficient data characterizing the rate constants for those compounds known to be biodegradable under anaerobic conditions (55 Fed.

Reg. For most compounds, biodegradation will occur under both aerobic and anaerobic conditions. Biomass is a renewable energy source developed from living or recently living plant and animal materials, which can be used as fuel. The main components present in biomass are polymers such as carbohydrate, protein, cellulose, lignin and fat.

Biogas is produced when the biomass is anaerobically degraded by micro-organisms. The process of anaerobic digestion (AD) takes place in four steps Cited by: 4. Effect of Thermal Treatment of Anaerobic Sludge on the Bioavailability and Biodegradability Characte ristics 4 73 Brazilian Journal of Chemical Engineering Vol.

26, No. 03, pp. -July. Introduction. Anaerobic digestion (AD) technology has been typically employed for treating sludge produced in wastewater treatment plants.

This technique offers the possibility to reduce volatile suspended solids and odors, destroy pathogens, and to produce energy in the form of Cited by: Ikumi et al.

() predicted the biodegradability of wastewater and activated sludge organics in anaerobic digestion.

Kazadi-Mbamba et al. () validated a plantwide precipitation approach. Thermal treatment had a very positive effect on sludge anaerobic biodegradability, as confirmed by the increment in biogas production, which was 50% higher for the sludge samples collected after hours of thermal treatment, as compared to samples taken at time zero and therefore not submitted to thermal treatment (Table 8 and Figure 2).

Effect of Thermal Treatment of Anaerobic Sludge on the Bioavailability and Biodegradability Characteristics Brazilian Journal of Chemical Engineering Vol. 26, No. 03, pp. -July - September, biodegradability & compostability Biodegradability is the ability of organic substances and materials to be broken down into simpler substances through the action of enzymes from microorganisms.

If this process is complete, the initial organic substances are entirely converted into simple inorganic molecules such as water, carbon dioxide and. Northeast Laboratories, Inc. specializes in; Mold resistance studies of building materials and paper goods, filtration effectiveness of industrial oil, Air / Water / Food born pathogens, chemical and microbiological testing of pharmaceuticals, nutraceuticals, cosmetics, medical devices, and.

Anaerobic digestion (AD) is a complicated biological process for treatment of various types of organic wastes (municipal waste, agricultural waste, industrial waste, etc.) for generation of biogas as well as protecting our environment.

However, biodegradability and AD performance of organic waste depend on its by: 7. Lignin degradation is primarily an aerobic process, and in an anaerobic environment lignin can persist for very long periods (Van Soest, ).

Because lignin is the most recalcitrant component of the plant cell wall, the higher the proportion of lignin the lower the bioavailability of the substrate. Biodegradability of polyvinyl alcohol (PVA) under anaerobic conditions was demonstrated using anaerobic river sediments and anaerobically treated activated sludge from a sewage treatment plant.

PVA having molecular weights of and Cited by: ANAEROBIC BIODEGRADABILITY OF WOOD: A PRELIMINARY REVIEW. Mark Milke, Yinglei Fang, Stephen John.

Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, New Zealand. ABSTRACT. The literature shows that wood is relatively nonbiodegradable in anaerobic environments, though there is a.

López González, Lisbet Mailin, Han Vervaeren, Ileana Pereda Reyes, Ann Dumoulin, Osvaldo Romero Romero, and Jo Dewulf. “Thermo-chemical Pre-treatment to Solubilize and Improve Anaerobic Biodegradability of Press Mud.” Bioresource Technology – Biodegradation is important in wastewater treatment plants where both aerobic and anaerobic processes may be involved.

In contrast to other environmental fate processes, such as hydrolysis or photochemical reactions, biodegradation is unique in that the end result is often the complete conversion of the organic substance to inorganic products.

evaluation of potential anaerobic biodegradability of organic chemicals under a specific condition (i.e. in an anaerobic digester at a given time and range of concentration of micro-organisms). Because a diluted sludge is used with a relatively high concentration of test substance and the duration of the test typically isFile Size: KB.

Anaerobic biofilter, so called anaerobic fixed film reactors, is a kind of high efficient anaerobic treatment equipment developed in s. These reactors use inert support materials to provide a surface for the growth of anaerobic bacteria and to reduce turbulence to allow unattached populations to be retained in the system (Fig 4).Cited by: Research Article Improve the Anaerobic Biodegradability by Copretreatment of Thermal Alkali and Steam Explosion of Lignocellulosic Waste MuhammadAbdulHananSiddhu, 1 JianghaoLi, 1 JiafuZhang, 1 YanHuang, 1 WenWang, 1 ChangChen, 1,2 andGuangqingLiu 1 Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering.

The degradation potential of 77 organic chemicals under methanogenic conditions was examined with an anaerobic digesting sludge from the United Kingdom. Degradation was assessed in terms of net total gas (CH 4 plus CO 2) produced, expressed as a percentage of the theoretical production (ThGP).

The compounds tested were selected from various Cited by: This International Standard specifies a screening method for the evaluation of the biodegradability of organic compounds at a given concentration by anaerobic microorganisms. The conditions described in this test do not necessarily correspond to the optimal conditions allowing the maximum value of biodegradation to occur, since a dilute sludge.

of seed required for an anaerobic degradability test through the use of a concentrated or treated seed. Static predigestion of sewage sludge has been tested as a simple treatment.

This treatment involves maintenance of anaerobic conditions, incubation at an elevated temperature, and typically without mixing. In the ISO () and Pagga and.

Biodegradation is the breakdown of organic matter by microorganisms, such as bacteria and fungi. 2 Factors affecting biodegradation rate. 4 Biodegradable technology. 5 Biodegradation vs. composting. 6 Environmental and social effects.

7 Etymology of "biodegradable" Standards by ASTM International. 11 External links. ISO Water quality — Evaluation of the "ultimate" anaerobic biodegradability of organic compounds in digested sludge — Method by measurement of the biogas productionCategory: p.

This test method is used to determine the degree and rate of aerobic degradation (as indicated by loss of tensile strength, molecular weight, possibly resulting in disintegration and fragmentation) and anaerobic biodegradation of plastic materials in an accelerated aerobic-anaerobic bioreactor landfill test environment.

It can simulate the change from aerobic to anaerobic environments over. treatments, anaerobic biodegradability of both wastes was not improved comparatively to the raw materials.

Alkaline conditions induced a severe decreased (89%) of rinds’ biodegradability. Enzymatic pre-treatment appears to be a promising strategy for increasing methane production from meat-processing wastes. Keywords. In order to give an impression of the spectrum available, anaerobic test schemes proposed by ASTM, CEN, DIN, ISO, ECETOC, and OECD, are classified according to temperature, test environment, test purposes, and the equipment used.

Some problems with the equipment and the methodology such as permeation phenomena, reproducibility, and the medium composition are Cited by: Hydrolysis of particulate organics is known to limit the rate of sludge anaerobic digestion [1,2].Pre-treatment has been widely reported to solubilize the organic solids in sludge and make them more accessible for the subsequent anaerobic digestion [3,4,5].Ultrasonication (ULS) (20 kHz) pre-treatment at and kJ/kg total solids (TS) resulted, respectively, in a 47% and 51% increase in Cited by: 3.

Aerobic and anaerobic biodegradation of polyethylene treatment of ancient waterlogged wood, and in the manufac- [10] investigated the anaerobic biodegradability of PEG by Pelobacter Venetianus sp.

nov. They found that PEGs with molecular weight from to 20, were de. The anaerobic biodegradability of alkylbenzenes (benzene, toluene, ethylbenzene and xylene isomers or BTEX) and chlorinated aliphatic hydrocarbons (CAHs) leaching from a sanitary landfill was studied to evaluate the potential for these contaminants to naturally attenuate.

Biodegradation stability of organic solid waste characterized by physico-chemical parameters N. Cobo, A. López & A. Lobo Environmental Engineering Group, University of Cantabria, Spain Abstract A generalized methodology to characterize the bio-chemical properties of waste results is of great interest in waste management.

The chemical and physical. T1 - Anaerobic biodegradability and toxicity of eucalyptus fiber board manufacturing wastewater. AU - Soto, M. AU - Field, J. AU - Lettinga, G. AU - Méndez, R. AU - Lema, J. PY - Y1 - N2 - Wastewater from eucalyptus fiber board manufacturing (EFBM) was characterized and studied for its treatability by anaerobic digestion.

After investigating the application of the mesophilic and thermophilic processes in completely stirred, batch, and plug-flow reactors, in this study the authors consider the anaerobic fermentation of source-sorted organic municipal solid wastes in psychrophilic conditions (14−22 °C) without pH control.

The pilot-scale reactor was operated in a batch mode, with a hydraulic retention time of. Microbial biodegradation is the use of bioremediation and biotransformation methods to harness the naturally occurring ability of microbial xenobiotic metabolism to degrade, transform or accumulate environmental pollutants, including hydrocarbons (e.g.

oil), polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), heterocyclic compounds (such as pyridine or quinoline. Book Condition: Good+; Hardcover; Clean covers with minor edgewear; Unblemished textblock edges; The endpapers and all text pages are clean and unmarked; The binding is excellent with a straight spine; This book will be stored and delivered in a sturdy cardboard box with foam padding; Medium Format (" - " tall); Blue and red covers with title in white lettering;CRC Press; Cited by: 3.

Natural fiber-based paper and paperboard products are likely disposed of in municipal wastewater, composting, or landfill after an intended usage. However, there are few studies reporting anaerobic sludge digestion and biodegradability of agricultural fibers although the soiled sanitary products, containing agricultural fibers, are increasingly disposed of in municipal wastewater or Cited by: 1.

as Advanced Biological Treatment (ABT). These technologies include in-vessel composting (IVC) and anaerobic digestion (AD). This guide is designed to be read in conjunction with the other Waste Management Technology Briefs in this series.

Other relevant sources of information are identified throughout the Size: 1MB. -Anaerobic Digestion of Organic Wastes - 7 Biological process Anaerobic digestion is a naturally occurring process of decomposition and decay, by which organic matter is broken down to its simpler chemicals components under anaerobic conditions.

Anaerobic File Size: KB.Anaerobic digestion (AD), being the most effective treatment method of waste activated sludge (WAS), allows for safe disposal. The present study deals with the electro-Fenton (EF) pretreatment for enhancing the WAS biogas potential with low-cost iron electrodes.

The effect of pretreatment on the physicochemical characteristics of sludge was : Emna Feki, Audrey Battimelli, Sami Sayadi, Abdelhafidh Dhouib, Sonia Khoufi.ANAEROBIC TREATMENT OF SYNTHETIC ORGANIC WASTES by J. C. Hovious J. A. Fisher R. A. Conway Union Carbide Corporation Chemicals and Plastics Division Research and Development Department South Charleston, West Virginia for the OFFICE OF RESEARCH AND MONITORING ENVIRONMENTAL PROTECTION AGENCY Project # DIS January For sale by the .