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Inhibition of heavy metals on fermentative hydrogen production by granular sludge [An article from: Chemosphere]
Book Details
Author(s)C. Li, H.H.P. Fang
PublisherElsevier
ISBN / ASINB000PDSNRE
ISBN-13978B000PDSNR2
MarketplaceFrance 🇫🇷
Description
This digital document is a journal article from Chemosphere, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
This study was conducted to investigate the toxicity of six electroplating metals on the H"2-producing activity of a granular sludge sampled from an H"2-producing upflow reactor treating sucrose-containing wastewater. The H"2 production activities of the sludge were measured in serum vials using wastewater containing not just sucrose and proper nutrient, but also individual heavy metals at concentrations ranging 0-5000mgl^-^1. The relative toxicity to H"2 production was found in the following order: Cu (most toxic)@?Ni~Zn>Cr>Cd>Pb (least toxic). The C"I","5"0 values, at which the bioactivity of the sludge was reduced to 50% of the control, for individual heavy metals were Cu 30mgl^-^1, Ni and Zn 1600mgl^-^1, Cr 3000mgl^-^1, Cd 3500mgl^-^1, and Pb >5000mgl^-^1. Compared with the literature data, H"2-producing sludge exhibited in general higher resistance to metal toxicity than methanogenic granular sludge.
Description:
This study was conducted to investigate the toxicity of six electroplating metals on the H"2-producing activity of a granular sludge sampled from an H"2-producing upflow reactor treating sucrose-containing wastewater. The H"2 production activities of the sludge were measured in serum vials using wastewater containing not just sucrose and proper nutrient, but also individual heavy metals at concentrations ranging 0-5000mgl^-^1. The relative toxicity to H"2 production was found in the following order: Cu (most toxic)@?Ni~Zn>Cr>Cd>Pb (least toxic). The C"I","5"0 values, at which the bioactivity of the sludge was reduced to 50% of the control, for individual heavy metals were Cu 30mgl^-^1, Ni and Zn 1600mgl^-^1, Cr 3000mgl^-^1, Cd 3500mgl^-^1, and Pb >5000mgl^-^1. Compared with the literature data, H"2-producing sludge exhibited in general higher resistance to metal toxicity than methanogenic granular sludge.
