Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil

At present, Malaysia produces about 5 million m3 sludge per year (wet weight basis). Land application of sewage sludge is considered the most economical and also provides an opportunity to recycle beneficial plant nutrients and organic matter to soil for crop production. However, sewage sludge al...

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Main Author: Abdullah, Rosazlin
Format: Thesis
Language:English
English
Published: 2002
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/10614/1/FP_2002_28.pdf
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spelling my-upm-ir.106142024-04-29T09:06:29Z Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil 2002-07 Abdullah, Rosazlin At present, Malaysia produces about 5 million m3 sludge per year (wet weight basis). Land application of sewage sludge is considered the most economical and also provides an opportunity to recycle beneficial plant nutrients and organic matter to soil for crop production. However, sewage sludge also contain varying amounts of heavy metals which may pose a hazard of metal toxicity to crops and the consumer of these crops. Thus the uptake of heavy metals by crops and the fate of these heavy metals in soils need to be monitored. The first study, which involved ten sewage sludges, were collected from different wastewater treatment plants and classified into domestic sludge (type A) and light-industry sludge mixed with domestic sludge (type B). The chemical properties of sewage sludge with emphasis on heavy metal content were determined. In general, type B sludge has higher heavy metal content than type A sludge. The concentration of heavy metals in these sludges did not exceed the maximum permitted concentrations (MPC) of the European Community Standard (ECS), for land application, except for Zn (7110.10 mg kg-I). Also, the Cu concentration is rather high in type B sludge. Therefore, type B sludge can be characterized as quite hazardous and unsuitable for agricultural use. Corn - Heavy metals - Case studies 2002-07 Thesis http://psasir.upm.edu.my/id/eprint/10614/ http://psasir.upm.edu.my/id/eprint/10614/1/FP_2002_28.pdf text en public masters Universiti Putra Malaysia Corn - Heavy metals - Case studies Faculty of Agriculture Ishak, Che Fauziah English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
advisor Ishak, Che Fauziah
topic Corn - Heavy metals - Case studies


spellingShingle Corn - Heavy metals - Case studies


Abdullah, Rosazlin
Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
description At present, Malaysia produces about 5 million m3 sludge per year (wet weight basis). Land application of sewage sludge is considered the most economical and also provides an opportunity to recycle beneficial plant nutrients and organic matter to soil for crop production. However, sewage sludge also contain varying amounts of heavy metals which may pose a hazard of metal toxicity to crops and the consumer of these crops. Thus the uptake of heavy metals by crops and the fate of these heavy metals in soils need to be monitored. The first study, which involved ten sewage sludges, were collected from different wastewater treatment plants and classified into domestic sludge (type A) and light-industry sludge mixed with domestic sludge (type B). The chemical properties of sewage sludge with emphasis on heavy metal content were determined. In general, type B sludge has higher heavy metal content than type A sludge. The concentration of heavy metals in these sludges did not exceed the maximum permitted concentrations (MPC) of the European Community Standard (ECS), for land application, except for Zn (7110.10 mg kg-I). Also, the Cu concentration is rather high in type B sludge. Therefore, type B sludge can be characterized as quite hazardous and unsuitable for agricultural use.
format Thesis
qualification_level Master's degree
author Abdullah, Rosazlin
author_facet Abdullah, Rosazlin
author_sort Abdullah, Rosazlin
title Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
title_short Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
title_full Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
title_fullStr Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
title_full_unstemmed Application of Sewage Sludge on an Acid Tropical Soil: Crop Response and Heavy Metals Uptake by Maize and Their Accumulation in The Soil
title_sort application of sewage sludge on an acid tropical soil: crop response and heavy metals uptake by maize and their accumulation in the soil
granting_institution Universiti Putra Malaysia
granting_department Faculty of Agriculture
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/10614/1/FP_2002_28.pdf
_version_ 1804888577877737472