Land application technique for the treatment and disposal of sewage sludge

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1 Citation (Scopus)

Abstract

Some of the major concerns when applying sewage sludge to land include the potential effect on pH and cation exchange capacity; the mobility and the accumulation of heavy metals in sludge treated soil; the potential of applying too much nutrients and the problems associated with odors and insects. The main objective of this study is to identify the effects of sewage sludge application on the physical and chemical properties of sludge treated soil. Sewage sludge was applied to soil at various rates ranging form 0 L/m2 to 341 L/m2. In order to simulate the natural environment, the study was carried out at a pilot treatment site (5.2 m × 6.7 m) in an open area, covered with transparent roofing materals to allow natural sunlight to pass through. Simulated rain was applied by means of a sprinkler system. Data obtained from sludge treated soil showed that the pH values decreased when the application rates were increased and the application period prolonged. The effect of sewage sludge on cation exchange capacity was not so clear; the values obtained for every application rate of sewage sludge did not indicate any consistent behaviour. The mobility of heavy metals in soils treated with sludge were described by observing the changes in the concentration of the heavy metals. The study showed that Cd has the highest mobility in sludge treated soil followed by Cu, Cr, Zn, Ni and Pb.

Original languageEnglish
Pages (from-to)303-308
Number of pages6
JournalWater Science and Technology
Volume46
Issue number9
Publication statusPublished - 2002

Fingerprint

Sewage sludge
Waste disposal
Soils
sludge
Heavy metals
soil
heavy metal
cation exchange capacity
Ion exchange
Positive ions
Odors
Chemical properties
odor
Nutrients
Rain
land
sewage sludge
chemical property
Physical properties
physical property

Keywords

  • Cation exchange capacity
  • Heavy metals
  • Land treatment
  • pH
  • Sewage sludge
  • Sludge treated soil

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

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title = "Land application technique for the treatment and disposal of sewage sludge",
abstract = "Some of the major concerns when applying sewage sludge to land include the potential effect on pH and cation exchange capacity; the mobility and the accumulation of heavy metals in sludge treated soil; the potential of applying too much nutrients and the problems associated with odors and insects. The main objective of this study is to identify the effects of sewage sludge application on the physical and chemical properties of sludge treated soil. Sewage sludge was applied to soil at various rates ranging form 0 L/m2 to 341 L/m2. In order to simulate the natural environment, the study was carried out at a pilot treatment site (5.2 m × 6.7 m) in an open area, covered with transparent roofing materals to allow natural sunlight to pass through. Simulated rain was applied by means of a sprinkler system. Data obtained from sludge treated soil showed that the pH values decreased when the application rates were increased and the application period prolonged. The effect of sewage sludge on cation exchange capacity was not so clear; the values obtained for every application rate of sewage sludge did not indicate any consistent behaviour. The mobility of heavy metals in soils treated with sludge were described by observing the changes in the concentration of the heavy metals. The study showed that Cd has the highest mobility in sludge treated soil followed by Cu, Cr, Zn, Ni and Pb.",
keywords = "Cation exchange capacity, Heavy metals, Land treatment, pH, Sewage sludge, Sludge treated soil",
author = "{Md Zain}, Shahrom and Hassan Basri and Fatihah Suja` and Othman Jaafar",
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T1 - Land application technique for the treatment and disposal of sewage sludge

AU - Md Zain, Shahrom

AU - Basri, Hassan

AU - Suja`, Fatihah

AU - Jaafar, Othman

PY - 2002

Y1 - 2002

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AB - Some of the major concerns when applying sewage sludge to land include the potential effect on pH and cation exchange capacity; the mobility and the accumulation of heavy metals in sludge treated soil; the potential of applying too much nutrients and the problems associated with odors and insects. The main objective of this study is to identify the effects of sewage sludge application on the physical and chemical properties of sludge treated soil. Sewage sludge was applied to soil at various rates ranging form 0 L/m2 to 341 L/m2. In order to simulate the natural environment, the study was carried out at a pilot treatment site (5.2 m × 6.7 m) in an open area, covered with transparent roofing materals to allow natural sunlight to pass through. Simulated rain was applied by means of a sprinkler system. Data obtained from sludge treated soil showed that the pH values decreased when the application rates were increased and the application period prolonged. The effect of sewage sludge on cation exchange capacity was not so clear; the values obtained for every application rate of sewage sludge did not indicate any consistent behaviour. The mobility of heavy metals in soils treated with sludge were described by observing the changes in the concentration of the heavy metals. The study showed that Cd has the highest mobility in sludge treated soil followed by Cu, Cr, Zn, Ni and Pb.

KW - Cation exchange capacity

KW - Heavy metals

KW - Land treatment

KW - pH

KW - Sewage sludge

KW - Sludge treated soil

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