The effect of continuous Zn (II) exposure on the organic degradation capability and soluble microbial products (SMP) of activated sludge

Han, Jun; Liu, Yan; Liu, Xiang; Zhang, Yi; Yan, Yangwei; Dai, Ruwei; Zha, Xiao-song; Wang, Chengshan

doi:10.1016/j.jhazmat.2012.10.065

Cited by 24 publications

(5 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In case of aquatics, the ionic form of zinc is lethal to invertebrates and vertebrate fish (Shek et al 2009). Small amount of free zinc ions can cause heavy damage to ambient environment, kill some microorganism and excessive intake of zinc can also cause the deficiency of other dietary minerals (Shek et al 2009;Han et al 2013).…”

Section: Zinc Toxicity Remediation Technologies and Characterizationmentioning

confidence: 99%

Biosorption of zinc ion: a deep comprehension

Mishra

2014

Appl Water Sci

View full text Add to dashboard Cite

Massive industrialization and urbanization of civilization during the last few decades have made a thrust in heavy metal pollution in various water bodies. In past, various kinds of conventional metal ion remediation technologies, such as cementation, osmosis, reverse osmosis, ultrafiltration, etc., have been practised. However, most of these technologies are quite expensive, and lead to the generation of secondary chemical sludge. However, biosorption of heavy metal ions is significantly inexpensive and an eco-friendly technology. Among the series of heavy metals, zinc has gained the significant interest due to its toxicity and easy availability in water bodies. Biosorption of zinc in liquid phase by living, nonliving, conventional and non-conventional biosorbents has been practised extensively in the past. This literature review focuses on the recent trends practised in the field of biosorption of zinc from liquid phase. The present work provides deep insight into various aspects of biosorption of zinc by different mechanisms of biosorption, bioaccumulation, isotherm, kinetic and mechanistic modeling. An exhaustive comparison among different sorts of biomasses has also been given in the present work to enlist all the milestones of biosorption.

show abstract

Section: Zinc Toxicity Remediation Technologies and Characterizationmentioning

confidence: 99%

Biosorption of zinc ion: a deep comprehension

Mishra

2014

Appl Water Sci

View full text Add to dashboard Cite

show abstract

“…The concentrations of COD, TN, TP, especially Zn and As, were high. Many heavy metals such as Pb, Ca, Cu, Zn, as well as As are common in polluted rivers (Lorenz et al, 2006;Han et al, 2013). Most of the heavy metal ions are deposited in the sediment because of adsorption, hydrolysis, and co-precipitation (Gaur et al, 2005).…”

Section: Changes Of Microbial Community Diversities In the River Sedimentioning

confidence: 99%

“…Ghosh et al (2004) found that water-soluble forms of As were much more toxic than its insoluble forms. Long-term contamination with heavy metal and As could slow down bacterial growth, alter the soil microbial community composition, and exert a greater inhibitory effect on the enzymes' activities (Ghosh et al, 2004;Lorenz et al, 2006;Zhou et al, 2009;Han et al, 2013;Marabottini et al, 2013).…”

Section: Changes Of Microbial Community Diversities In the River Sedimentioning

confidence: 99%

Diversity change of microbial communities responding to zinc and arsenic pollution in a river of northeastern China

Zhao

Lei

et al. 2014

J. Zhejiang Univ. Sci. B

View full text Add to dashboard Cite

Pollution discharge disturbs the natural functions of water systems. The environmental microbial community composition and diversity are sensitive key indicators to the impact of water pollutant on the microbial ecology system over time. It is meaningful to develop a way to identify the microbial diversity related to heavy metal effects in evaluating river pollution. Water and sediment samples were collected from eight sections along the Tiaozi River where wastewater and sewage were discharged from Siping City in northeastern China. The main pollutants contents and microbial communities were analyzed. As the primary metal pollutants, zinc (Zn) and arsenic (As) were recorded at the maximum concentrations of 420 and 5.72 μg/L in the water, and 1704 and 1.92 mg/kg in the sediment, respectively. These pollutants posed a threat to the microbial community diversity as only a few species of bacteria and eukaryotes with strong resistance were detected through denaturing gradient gel electrophoresis (DGGE). Acinetobacter johnsonii, Clostridium cellulovorans, and Trichococcus pasteurii were the dominant bacteria in the severely polluted areas. The massive reproduction of Limnodrilus hoffmeisteri almost depleted the dissolved oxygen (DO) and resulted in the decline of the aerobic bacteria. It was noted that the pollution reduced the microbial diversity but the L. hoffmeisteri mass increased as the dominant community, which led to the overconsuming of DO and anaerobic stinking water bodies. Water quality, concentrations of heavy metals, and the spatial distribution of microbial populations have obvious consistencies, which mean that the heavy metals in the river pose a serious stress on the microorganisms.

show abstract

“…Li et al 5 investigated the SMP production in the presence of 3′,4′,5-tetrachlorosalicylanilide (TCS) by activated sludge system, implying that the dose of TCS leaded to an increased SMP production. Han et al 6 evaluated the effect of continuous Zn (II) exposure on organic degradation capability and SMP formation of activated sludge, showing that the SMP content together with its main biochemical constituents increased with influent Zn (II) concentration. However, little information is available regarding to SMP production in aerobic granular sludge system.…”

mentioning

confidence: 99%

A Fluorescence Approach to Assess the Production of Soluble Microbial Products from Aerobic Granular Sludge Under the Stress of 2,4-Dichlorophenol

Wei

Dong

et al. 2016

Sci Rep

View full text Add to dashboard Cite

In this study, a fluorescence approach was used to evaluate the production of soluble microbial products (SMP) in aerobic granular sludge system under the stress of 2,4-dichlorophenol (2,4-DCP). A combined use of three-dimension excitation emission matrix fluorescence spectroscopy (3D-EEM), Parallel factor analysis (PARAFAC), synchronous fluorescence and two-dimensional correlation spectroscopy (2D-COS) were explored to respect the SMP formation in the exposure of different doses of 2,4-DCP. Data implied that the presence of 2,4-DCP had an obvious inhibition on biological nitrogen removal. According to EEM-PARAFAC, two fluorescent components were derived and represented to the presence of fulvic-like substances and humic-like substances in Component 1 and protein-like substances in Component 2. It was found from synchronous fluorescence that protein-like peak presented slightly higher intensity than that of fulvic-like peak. 2D-COS further revealed that fluorescence change took place sequentially in the following order: protein-like fraction > fulvic-like fraction. The obtained results could provide a potential application of fluorescence spectra in the released SMP assessment in the exposure of toxic compound during wastewater treatment.

show abstract

The effect of continuous Zn (II) exposure on the organic degradation capability and soluble microbial products (SMP) of activated sludge

Cited by 24 publications

References 34 publications

Biosorption of zinc ion: a deep comprehension

Biosorption of zinc ion: a deep comprehension

Diversity change of microbial communities responding to zinc and arsenic pollution in a river of northeastern China

A Fluorescence Approach to Assess the Production of Soluble Microbial Products from Aerobic Granular Sludge Under the Stress of 2,4-Dichlorophenol

Contact Info

Product

Resources

About