Articles liés à Reduction of Heavy Metals Sludge by Vermicomposting...

Reduction of Heavy Metals Sludge by Vermicomposting Technique: Treatment of the industrial sludge by earthworms - Couverture souple

Ahmed Hamdi, Shaymaa; Ismail, Norli

 
9783847305552: Reduction of Heavy Metals Sludge by Vermicomposting Technique: Treatment of the industrial sludge by earthworms
Couverture souple
ISBN 10 : 3847305557 ISBN 13 : 9783847305552
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

Two kinds of treatments were used in the current Book, namely, biological and chemical treatments, to reduce the concentration of four heavy metals (Al, Ni, Zn, and Pb) in the sludge collected from the electronic industry. A biological treatment called vermicomposting technique was employed to expose four different ratios of sludge (20, 50, 80, and 100%) mixed with goat manure and rice straw as a composting material to the earthworm species Eisenia fetida for four weeks. For the chemical technique, the sludge was washed with a mixture of two reagents (Na2 EDTA and Na2S2O5) at different volumes of washing solution (2.5, 5, and 7.5 mL to 1 g of sludge). The best reduction of heavy metals occurred in 7.5 mL with a percentage reduction of 5%, 12%, 16%, and 24% per gram sludge for Al, Ni, Zn, and Pb, respectively. Based on the findings, the vermicomposting technique shows greater potential over the chemical washing technique in reducing heavy metal concentration in electronic sludge.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Two kinds of treatments were used in the current Book, namely, biological and chemical treatments, to reduce the concentration of four heavy metals (Al, Ni, Zn, and Pb) in the sludge collected from the electronic industry. A biological treatment called vermicomposting technique was employed to expose four different ratios of sludge (20, 50, 80, and 100%) mixed with goat manure and rice straw as a composting material to the earthworm species Eisenia fetida for four weeks. For the chemical technique, the sludge was washed with a mixture of two reagents (Na2 EDTA and Na2S2O5) at different volumes of washing solution (2.5, 5, and 7.5 mL to 1 g of sludge). The best reduction of heavy metals occurred in 7.5 mL with a percentage reduction of 5%, 12%, 16%, and 24% per gram sludge for Al, Ni, Zn, and Pb, respectively. Based on the findings, the vermicomposting technique shows greater potential over the chemical washing technique in reducing heavy metal concentration in electronic sludge.

Biographie de l'auteur

Received the Bachelor's degree Biology from Baghdad University, Iraq, on 1999 and Msc degree in Environmental Technology from the University science Malaysia(USM), Malaysia, on 2011. She has published papers in national and international journals and conferences. On 2009 she got award for best research project from University science Malaysia(USM)

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3847305557
ISBN 13 
9783847305552
Reliure
Broché
Nombre de pages
116
Coordonnées du fabricant
non disponible
Personne responsable
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