Physico-chemical characterization and toxicity analysis of leachate from a close landfill in Barangay Lantic, Carmona, Cavite / Annabelle G. Loyola.

By:

Loyola, Annabelle G [author]

Contributor(s):

Guinto, Danilo F [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite, Cavite State University- Main Campus, 2001.Description: 69 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

628.7 L95 2001

Online resources:

Click here to view the Abstract and Table of Contents

Abstract: LOYOLA, ANABELLE GIMENA. Cavite State University, Indang, Cavite, March 2001, "Physico-Chemical Characterization and Toxicity Analysis of Leachate from a Closed Landfill in Barangay Lantic, Carmona, Cavite." Adviser: Dr. Danilo F. Guinto. Leachate from a closed landfill in Carmona, Cavite was collected to: (1) determine the physico-chemical characteristics of leachate samples in terms of pH, color, odor and temperature and BOD; (2) detect the presence of the heavy metals (mercury, lead and cadmium) in the leachate samples; and (3) determine the lethal concentration (LC50) of the leachate to tilapia. The leachate samples collected in December 17, 2000 and January 18, 2001 were found to have the following physical and chemical properties: black color, ammoniacal odor, 27 °C temperature on sampling, and pH of 7.5. The BOD level of the first sample at 1:4 dilution (1 part leachate to 4 parts water) was determined to be 56.16 mg/L. These properties were observed to change with tap water dilution. Heavy metal analysis showed negligible levels for cadmium and mercury. Lead content was determined to be 0.07 mg/L in both samples. This level was above the DENR standard for fishery waters (Class C). Preliminary toxicity analysis using the first leachate sample showed 100% mortality for concentrations 1:1.2 to 1:4 and a time to death of 3-19 minutes. Subsequent analysis using the second leachate sample showed a mortality rate ranging from 0-100% for concentrations 1:10 - 1:60 and a time to death of 30 minutes-96 hours. Result of the second toxicity analysis was utilized for LC50 determination. The lethal concentration (LC50) of the leachate to tilapia was determined to be 34.17+5.52 ml/L. The study demonstrated the toxicity of Carmona landfill leachate to tilapia at remarkably low concentrations. The leachate poses grave risk to biotic components subsisting on the adjoining surface water bodies and as such may necessitate corrective action among concerned agencies.

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Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	628.7 L95 2001 (Browse shelf(Opens below))		Link to resource	Room use only	T-2241		00002774

Thesis (BS Environmental Science) Cavite State University.

Includes bibliographical references.

LOYOLA, ANABELLE GIMENA. Cavite State University, Indang, Cavite, March 2001, "Physico-Chemical Characterization and Toxicity Analysis of Leachate from a Closed Landfill in Barangay Lantic, Carmona, Cavite." Adviser: Dr. Danilo F. Guinto. Leachate from a closed landfill in Carmona, Cavite was collected to: (1) determine the physico-chemical characteristics of leachate samples in terms of pH, color, odor and temperature and BOD; (2) detect the presence of the heavy metals (mercury, lead and cadmium) in the leachate samples; and (3) determine the lethal concentration (LC50) of the leachate to tilapia. The leachate samples collected in December 17, 2000 and January 18, 2001 were found to have the following physical and chemical properties: black color, ammoniacal odor, 27 °C temperature on sampling, and pH of 7.5. The BOD level of the first sample at 1:4 dilution (1 part leachate to 4 parts water) was determined to be 56.16 mg/L.
These properties were observed to change with tap water dilution. Heavy metal analysis showed negligible levels for cadmium and mercury. Lead content was determined to be 0.07 mg/L in both samples. This level was above the DENR standard for fishery waters (Class C). Preliminary toxicity analysis using the first leachate sample showed 100% mortality for concentrations 1:1.2 to 1:4 and a time to death of 3-19 minutes. Subsequent analysis using the second leachate sample showed a mortality rate ranging from 0-100% for concentrations 1:10 - 1:60 and a time to death of 30 minutes-96 hours.
Result of the second toxicity analysis was utilized for LC50 determination. The lethal concentration (LC50) of the leachate to tilapia was determined to be 34.17+5.52 ml/L. The study demonstrated the toxicity of Carmona landfill leachate to tilapia at remarkably low concentrations. The leachate poses grave risk to biotic components subsisting on the adjoining surface water bodies and as such may necessitate corrective action among concerned agencies.

Submitted to the University Library 06/07/2001 T-2241

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