Home >> Water Environment Research, Volume 81, Number 5

Microbial Enumeration of Different Functional Groups and Bacterial Behavior in Acid Basic Conditions of a Biotoxic Landfill Leachate of Bahía Blanca, Argentina

Authors: Yunes, Fabiana; Baldini, Mónica D; Gómez, Marisa A

Source: Water Environment Research, Volume 81, Number 5, May 2009 , pp. 546-550(5)

Publisher: Water Environment Federation

Buy & download fulltext article:

OR

Price: $30.00 plus tax (Refund Policy)

Abstract:

Leachate is liquid waste from refuse biological decomposition or rainwater percolation in a landfill. This research focused on leachate produced by a landfill in Bahía Blanca, Buenos Aires, Argentina. The research studied the main microbial populations involved in wastewater treatment, analyzed the behavior of bacteria isolated from leachate at different pH values, and appraised leachate biotoxicity. The number of bacteria varied by type, ranging from 1 × 10 4 to 1 × 10 5 CUF/mL aerobic heterotrophic bacteria (AHB); 1 × 10 3 to 1 × 10 5 CUF/mL anaerobic heterotrophic bacteria (ANHB); 1 × 10 5 to 1 × 10 6 CUF/mL sulfite-reducing bacteria (SRB); 1 × 10 3 to 1 × 10 6 NMP/mL nitrate-reducing bacteria (NRB); and 1 × 10 2 to 1 × 10 4NMP/mL ammonium-oxidizing bacteria (AOB).

Several microbial strains developed at pH 5, 7, and 10. These pH values changed to 9 in the culture media after a 48-hour incubation. Leachate was used to water lettuce seeds ( Lactuca sativa capitata). Its toxicity was proved by full inhibition of plant development.
More about this publication?
  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • WEF Bookstore
  • ingentaconnect is not responsible for the content or availability of external websites
Marked list

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
^ Back to top
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page