Effects of nickel(II) addition on the activity of activated sludge microorganisms and activated sludge process

Ong, Soon‐An; Toorisaka, Eiichi; Hirata, Makoto; Hano, Tadashi

doi:10.1016/j.jhazmat.2004.05.031

Cited by 54 publications

(35 citation statements)

References 20 publications

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“…It was observed that the treatment performance of SBR system, in terms of SS concentration and TOC removal efficiency, was improved after termination of Ni(II) addition. Further more, the increase of SOUR as shown in Figure 4 (c) indicates the recovery of bioactivity of microbes from the toxic effects of Ni(II) [24].…”

Section: Ni(ii)-containing Wastewatermentioning

confidence: 91%

The Behavior of Ni(II), Cr(III), and Zn(II) in Biological Wastewater Treatment Process

Ong¹,

Toorisaka²,

Hirata³

et al. 2005

Acta hydrochim. hydrobiol.

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aThe purpose of this research was to investigate the effects of Ni(II), Cr(III), and Zn(II) on a Department of Applied the treatment performance of sequencing batch reactor (SBR) system. The kinetics of Chemistry, Oita University, adsorption study showed that the pseudo second-order reaction model provided the best Oita 870-1192, Japan description of the data obtained. From the Langmuir isotherm, the maximum adsorption capacities of Ni(II), Cr(III), and Zn(II) were 30 mg/g, 23 mg/g, and 18 mg/g, respectively. Cr(III) and Ni(II) were found to exert a more pronounced inhibitory effect on the bioactivity of the microorganisms compare to Zn(II). The increase of Cr(III) and Ni(II) concentration from 5 to 10 mg/L caused significant effect on the suspended solids (SS) and total organic carbon (TOC) removal efficiency in SBR system but vice versa in the case of Zn(II). The addition of powdered activated carbon (PAC) and termination of metal ions addition into SBR systems were carried out to investigate the capability of system recovery from the toxic effects of metal. Das Verhalten von Ni(II), Cr(III) und Zn(II) bei der biologischen Abwasserbehandlung

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Section: Ni(ii)-containing Wastewatermentioning

confidence: 91%

The Behavior of Ni(II), Cr(III), and Zn(II) in Biological Wastewater Treatment Process

Ong¹,

Toorisaka²,

Hirata³

et al. 2005

Acta hydrochim. hydrobiol.

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“…Studies reported on the same trend as microorganisms are affected with the addition of higher nickel dosage leads to decrease of nickel removal efficiency. However, nickel removal efficiency will start to increase once the microorganisms are adapted with new higher nickel dosage [24][25][26]. Final nickel concentration was below 1.0 mg/L which meets the DOE Standard B discharge limit.…”

Section: Nickel Removalmentioning

confidence: 91%

Application of sequencing batch reactor (SBR) for treatment of refinery wastewater containing nickel

Malakahmad¹,

Ishak²,

Isa³

et al. 2012

Water Pollution XI

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A petroleum refinery is a complex combination of interdependent industrial processes that generate wastewater effluent containing hydrocarbons, heavy metals and dissolved minerals which cause harmful effects to human and environment. While physicochemical systems are widely accepted as effective methods for treatment of industrial wastewater, biological processes are beginning to play an increasing role in the treatment of metal containing effluents. The objective of the present study is to investigate the biological treatment of refinery wastewater containing nickel. The SBR performance was assessed by measuring Chemical Oxygen Demand (COD), Mixed Liquor Suspended Solid (MLSS), Mixed Liquor Volatile Suspended Solid (MLVSS) as well as nickel concentrations. The SBR was operated on a 12-hour cycle basis which consisted of five distinct modes: fill, react, settle, draw, and idle. The wastewater was brought from an equalization tank of a refinery plant and was fed to the reactor after characterization. The nickel concentration ranged from 2.3 to 2.6 mg/L. The experimental results demonstrate COD and nickel removal efficiencies of 70-90% and 77-80%, respectively.

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“…Many researchers studied the effects of heavy metals on activated sludge system (Ong et al, 2004;Ong et al, 2005b;Santos et al, 2005;Sirianuntapiboon & Ungkaprasatch, 2007;Tsai et al, 2006). However, results from these studies are difficult to be compared due to the various metal bioavailability caused by different operation modes, substrate compositions, seed sludge sources and concentrations.…”

Section: Metal Resistance Of Granular Sludgementioning

confidence: 99%

“…However, results from these studies are difficult to be compared due to the various metal bioavailability caused by different operation modes, substrate compositions, seed sludge sources and concentrations. The total organic carbon (TOC) removal efficiency of activated sludge process decreased from 98% to 88% in the presence of Ni (II) while the same Ni (II) loading rate exerted slight influence on aerobic granules system (Ong et al, 2004;Wang et al, 2010). Table 4 gives the metal/VSS ratios causing 50% inhibition of microbial activity of anaerobic granules and flocculent sludge.…”

Section: Metal Resistance Of Granular Sludgementioning

confidence: 99%

Interaction between Heavy Metals and Aerobic Granules

Wang¹,

Teng²,

Fan³

2010

Environmental Management

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Effects of nickel(II) addition on the activity of activated sludge microorganisms and activated sludge process

Cited by 54 publications

References 20 publications

The Behavior of Ni(II), Cr(III), and Zn(II) in Biological Wastewater Treatment Process

The Behavior of Ni(II), Cr(III), and Zn(II) in Biological Wastewater Treatment Process

Application of sequencing batch reactor (SBR) for treatment of refinery wastewater containing nickel

Interaction between Heavy Metals and Aerobic Granules

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