Journal ArticleDOI
Metal toxicity in municipal wastewater activated sludge investigated by multivariate analysis and in situ hybridization
TLDR
The toxicity of three heavy metals on an activated sludge biomass was studied by measuring several parameters of microbiological activity and the dynamics of microbial community composition, which suggested a higher sensitivity of nitrifiers to these metals than heterotrophs.About:
This article is published in Water Research.The article was published on 2006-01-01. It has received 97 citations till now. The article focuses on the topics: Copper toxicity & Activated sludge.read more
Citations
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Journal ArticleDOI
Inhibitory effect of heavy metals on methane-producing anaerobic granular sludge.
TL;DR: The modified Gompertz, Logistic, and Richards equations were applied to describe the inactivation of anaerobic culture by heavy metals and found the metal concentrations that cause a 50% reduction in the cumulative methane production over a fixed period of exposure time (24h).
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Single and combined effects of nickel (Ni(II)) and cobalt (Co(II)) ions on activated sludge and on other aerobic microorganisms : A review
TL;DR: The present review discusses, in a systematic way, the individual and joint effects of the above heavy metals to the growth of microorganisms grown under aerobic conditions, with focus on thegrowth of activated sludge.
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Heavy Metal Removal Investigation in Conventional Activated Sludge Systems
TL;DR: In this paper, the authors evaluate the treatment process both in the presence and absence of heavy metals using ASM3 (activated sludge model no.3) so as to improve the model by means of incorporating other novel inhibitory kinetic and settler models.
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Recent Advances in Microbial Metal Bioaccumulation
Abhishek Mishra,Anushree Malik +1 more
TL;DR: The authors summarize the studies concerning response of growing cells to metals toxicity in terms of growth rate, biomass production, and morphological/structural adaptations along with latest reports involving genomics and proteomics approach to indicate bright potential of metal resistant strains or strains with hormesis phenomenon for field application.
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Acute sensitivity of activated sludge bacteria to erythromycin.
TL;DR: The sensitivity of activated sludge bacteria to erythromycin, a macrolide widely used in human medicine, was investigated in batch toxicity tests using a concentration range of 1-300 mg L(-1).
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Phylogenetic Oligodeoxynucleotide Probes for the Major Subclasses of Proteobacteria: Problems and Solutions
TL;DR: Based on comparative analyses of 16S and 23S ribosomal RNA sequences, sites specific for the alpha-, beta-, and gamma-subclasses of Proteobacteria are located and will be useful for determinative studies and for the in situ monitoring of population distribution and dynamics in microbial communities.
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Efflux‐mediated heavy metal resistance in prokaryotes
TL;DR: The complement of efflux systems of 63 sequenced prokaryotes was compared with that of the heavy metal resistant bacterium Ralstonia metallidurans and showed that heavy metal resistance is the result of multiple layers of resistance systems with overlapping substrate specificities, but unique functions.
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Structures of Gram-Negative Cell Walls and Their Derived Membrane Vesicles
TL;DR: Gram-negative cell walls are strong enough to withstand ;3 atm of turgor pressure, tough enough to endure extreme temperatures and pHs, and elastic enough to be capable of expanding several times their normal surface area.