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

by Ahmed Hamdi, Shaymaa
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Ahmed Hamdi, Shaymaa Reduction of Heavy Metals Sludge by Vermicomposting Technique - Treatment of the industrial sludge by earthworms
Ahmed Hamdi, Shaymaa - Reduction of Heavy Metals Sludge by Vermicomposting Technique - Treatment of the industrial sludge by earthworms

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Description

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.

Contributors

Author:
Ahmed Hamdi, Shaymaa
Ismail, Norli

Further information

Biography Artist:
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)
Language:
Englisch
Number of Pages:
116
Media Type:
Taschenbuch
Publisher:
LAP Lambert Academic Publishing

Master Data

Product Type:
Paperback book
Release date:
05 December 2011
Package Dimensions:
0.22 x 0.15 x 0.007 m; 0.222 kg
GTIN:
09783847305552
DUIN:
DAMH3ADHOQ3
£41.99
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