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:	Corn - Heavy metals - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/10614/1/FP_2002_28.pdf
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id	my-upm-ir.10614
record_format	uketd_dc
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

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

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