This Special Issue of the Journal of Environmental Engineering and Science Is Devoted to Biosolids. Introduction/Numero Special De la Revue Du Genie et De la Science De L'environnement Consacre Aux Biosolides

By Kelly, Harian G.; Oleszkiewicz, Jan A. et al. | Journal of Environmental Engineering and Science, May 2006 | Go to article overview

This Special Issue of the Journal of Environmental Engineering and Science Is Devoted to Biosolids. Introduction/Numero Special De la Revue Du Genie et De la Science De L'environnement Consacre Aux Biosolides


Kelly, Harian G., Oleszkiewicz, Jan A., Puchajda, Bartek M., Journal of Environmental Engineering and Science


Why biosolids? To process the stream of biosolids that represents approximately 1% of the wastewater flow and dispose of it in a manner that accounts for sustainability, practicality, science, and economy, municipalities spend roughly 50% of their wastewater treatment plant operating budget. Manure management and paper plant sludge management are becoming a serious financial burden on the producers. There is an issue with biosolids ... and a special issue is what is presented here, to advance useful information and expand our knowledge of managing biosolids.

An explosion of science and technology in virtually every field resulted in multiple approaches to deal with biosolids. Among many existing options, there are many emerging processes in biosolids treatment as described by Kelly. One of the most important concerns is pathogen content, which in practice means the desire for technology that can provide an exceptional quality or Class A biosolids. The USEPA Class A has been universally adopted to mean biosolids safe for handling and fit for multiple uses, including human exposure. Very often thermophilic processes are used to achieve a Class A product. Higher temperatures can mean higher costs and this is already a costly problem. One solution to reduce cost may be to reduce the retention time using thermophilic acid digestion and at the same time allow for sludge hydrolysis and acidification to improve methanogenic digestion, as investigated by Puchajda and Oleszkiewicz. Another low cost solution combines dewatering with electrokinetic phenomena to inactivate coliforms in biosolids, as shown by Esmaeily, Elektorowicz, Habibi, and Oleszkiewicz.

Pathogens are not the only concern when untreated biosolids are to be managed safely. Chemicals in the biosolids may be toxic to animals and plants. For this reason, the development of criteria for toxicological characterization of fertilizing residuals as provided by Chasse, Delbaen, and Hebert is an important contribution to the safe management of these materials. The addition of endocrine-disrupting chemicals that may be added to soils receiving liquid swine slurry or biosolids, as addressed by Lorenzen, Burnison, Servos, and Topp, is another example of such a concern.

A management problem may not be the lack of criteria and standards for handling biosolids, but an excess of them. Ge, McCartney, and Zeb summarized and compared environmental protection standards for compost from six organizations three across Canada and three provincial). Applied information on composting of biosolids and the effect of bulking agent particle size on operating performance is provided by Raichura and McCartney.

Besides toxins and pathogens, uncontrolled land application of improperly treated biosolids may lead to contamination of ground and surface waters. Interestingly, soil hydraulic properties change after application of organic wastes. Unc and Goss discuss when it is better to apply liquid and when to apply solid manure and how it is related to infiltration that may lead to contaminant transport.

Is growing plants using paper wastes possible? It turns out that paper sludge and black bark can be used as topsoil for plant growth. Concepts of recycling and sustainability were outlined by Beauchamp, Camire, and Chalifour.

Biosolids, besides microbial and chemical content, possess one more unpleasant characteristic--off-gases that contain, among many others, ammonia, amines, and reduced sulfur compounds. Full-scale study by Schanchayan, Parker, and Pride assessed the ability of biofilters to remove the odours from an autothermal thermophilic aerobic digestion facility.

We hope that this issue will update you on the current information on present problems and emerging technological solutions.

Harlan G. Kelly

Special Editor

Dayton & Knight Ltd.

Jan A. Oleszkiewicz

Special Editor

University of Manitoba

Bartek M. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Note: primary sources have slightly different requirements for citation. Please see these guidelines for more information.

Cited article

This Special Issue of the Journal of Environmental Engineering and Science Is Devoted to Biosolids. Introduction/Numero Special De la Revue Du Genie et De la Science De L'environnement Consacre Aux Biosolides
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
Items saved from this article
  • Highlights & Notes
  • Citations
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Search by... Author
    Show... All Results Primary Sources Peer-reviewed

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.