sludge disintegration with stirred ball mills

Mechanism Investigation of Excess Sludge Disintegration

2021-6-3 · Abstract. The stirred ball mill (SBM) method is a common method applied in large-scale sludge disintegration. Many reports focus on the disintegration results of sludge or the influence of parameters on the anaerobic process of treated sludge, but there have been few studies on the mechanism of sludge disintegration by SBM.

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Mechanism Study of Excess Sludge Disintegration by

Stirred ball mill(SBM) method is one of the usually method which applied in large scale application cases of sludge disintegration. This study focuses on investigation the mechanism of sludge disintegration by SBM method. Besides analysis general indicators of SCOD, TN, TP and calculated the disintegration rate of COD (DDCOD). The result indicated the SCOD and

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Mechanism Investigation of Excess Sludge Disintegration

The stirred ball mill (SBM) method is a common method applied in large-scale sludge disintegration. Many reports focus on the disintegration results of sludge or the influence of parameters on the ...

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Disintegration of sewage sludges and influence on ...

1998-1-1 · Mechanical disintegration of excess sludge Parameter-studies have been carried out using a stirred ball mill, a high-pressure homogenizer, an ultrasonic homogenizer and a shear-gap homogenizer. The performance of the various disintegration methods can be compared with each other using the specific energy, which is defined as the amount of ...

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Mechanism study of excess sludge disintegration by

Stirred ball mill(SBM) method is one of the usually method which applied in large scale application cases of sludge disintegration. This study focuses on investigation the mechanism of sludge disintegration by SBM method. Besides analysis general indicators of

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Mechanical disintegration of sewage sludge

An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption.

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Mechanical disintegration of sewage sludge.

An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption. PMID: 11379090

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Microbial growth reduction in sewage sludge by stirred ...

2019-11-18 · disintegration and ozonation of excess sludge showed accelerated anaerobic digestion.11 Besides mechanical disintegration and ozonation, other methods, e.g. oxidation, thermal, chemical and thermochemical pretreatment methods are also used to improve sludge digestibility.12–14 Stirred ball mill method Experimental investigations using SBM ...

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Mechanical disintegration of sewage sludge. - Abstract ...

2001-1-1 · An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption.

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Sludge minimization technologies--an overview

Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ball-mill, high-pressure homogenizer, ultrasonic disintegrator), chemical methods (focusing on the use of ozone), physical methods (focusing on thermal and thermal/chemical hydrolysis) and biological methods ...

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Disintegration of sewage sludges and influence on ...

1998-1-1 · Mechanical disintegration of excess sludge Parameter-studies have been carried out using a stirred ball mill, a high-pressure homogenizer, an ultrasonic homogenizer and a shear-gap homogenizer. The performance of the various disintegration methods can be compared with each other using the specific energy, which is defined as the amount of ...

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Mechanical disintegration of sewage sludge | Water

2001-1-1 · An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption.

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Microbial growth reduction in sewage sludge by stirred ...

Journal of Chemical Technology and Biotechnology J Chem Technol Biotechnol 83:269–278 (2008) Microbial growth reduction in sewage sludge by stirred ball mill disintegration and estimation by respirometry Chockalingam Lajapathi Rai,1∗ Johannes Mueller,2 Georg Struenkmann3 and Paruchuri Gangadhar Rao4 1 Chemical Engineering Division, Central

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Minimisation of costs by using disintegration at a full ...

2002-8-1 · Various half-scale and lab-scale investigations have already shown that the disintegration of excess sludge is a possible pre-treatment to optimise anaerobic digestion. To control these results different methods of disintegration were investigated at a full-scale plant. Two stirred ball mills and a plant for oxidation with ozone were applied.

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Mechanical sludge disintegration for the production of ...

2017-12-18 · Stirred ball mills and high pressure homogenizers were used for sludge disintegration by Muller (2000), to produce a carbon. 4 source for denitrification. According to their experiments the maximum denitrification rate was up to 15 mg NO 3-N g-1 VSS h-1. Chiu et al., (1997) reported that the

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Sludge minimization technologies--an overview

Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ball-mill, high-pressure homogenizer, ultrasonic disintegrator), chemical methods (focusing on the use of ozone), physical methods (focusing on thermal and thermal/chemical hydrolysis) and biological methods ...

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Sludge minimization technologies - an overview

Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ball-mill, high-pressure homogenizer, ultrasonic disintegrator), chemical methods (focusing on the use of

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Investigation and Assessment of Sludge Pre-treatment

The influence of disintegration of excess sludge on anaerobic digestion was studied in full scale. A stirred ball mill, an ultrasound disintegrator, a lysate centrifuge and an ozone treatment were used. The results of the degradation process was compared to a

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Ball Mill Method For Determining The Disintegration Of ...

The stirred ball mill method is a common method applied in largescale sludge disintegration Many reports focus on the disintegration results of sludge or the influence of parameters on the anaerobic process of treated sludge, but there have been few studies on the mechanism of sludge disintegration by This study focused on the mechanism of ...

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Stirred Ball Mill Sludge

2021-4-24 · Mechanical Disintegration Of Sewage Sludge. An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption.

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Mechanical disintegration of sewage sludge. - Abstract ...

2001-1-1 · An optimum of the bead diameter and the stress intensity in stirred ball mills could be detected. A comparison of the results of different methods of sludge disintegration shows that the investigated ultrasonic homogenizers are inferior to a high pressure homogenizer and a stirred ball mill in terms of energy consumption.

Read More

Minimisation of costs by using disintegration at a full ...

2002-8-1 · Various half-scale and lab-scale investigations have already shown that the disintegration of excess sludge is a possible pre-treatment to optimise anaerobic digestion. To control these results different methods of disintegration were investigated at a full-scale plant. Two stirred ball mills and a plant for oxidation with ozone were applied.

Read More

Mechanical sludge disintegration for the production of ...

2017-12-18 · Stirred ball mills and high pressure homogenizers were used for sludge disintegration by Muller (2000), to produce a carbon. 4 source for denitrification. According to their experiments the maximum denitrification rate was up to 15 mg NO 3-N g-1 VSS h-1. Chiu et al., (1997) reported that the

Read More

Sludge minimization technologies - an overview

Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ball-mill, high-pressure homogenizer, ultrasonic disintegrator), chemical methods (focusing on the use of

Read More

Microbial growth reduction in sewage sludge by stirred ...

2007-12-31 · Treatment and disposal of sewage sludge from wastewater treatment plants accounts for about half or even up to 60% of the total operating cost. The present study focuses on the reduction of excess sludge generation by engineering the microbes through mechanical energy inputs by means of stirred ball milling

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Reduction of excess sludge production using mechanical ...

Using three different disintegration devices (ultrasonic homogeniser, stirred media mill, high pressure homogeniser) and different operational parameters of the disintegration, the effect of mechanical disintegration on the excess sludge production and on the effluent quality was studied within a continuously operated, laboratory scale ...

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ball mills in anaerobic digester

of disintegration on anaerobic digestion the specific gas production related , During the operation of both stirred ball mills, the degree of disintegration was. ... ball mills company and costs sludge treatment. Minimisation of costs by using disintegration at a full ,, is a possible pre-treatment to optimise anaerobic digestion , ball mill ...

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Investigation and assessment of sludge pre-treatment ...

2004-1-1 · The influence of disintegration of excess sludge on anaerobic digestion was studied in full scale. A stirred ball mill, an ultrasound disintegrator, a lysate centrifuge and ozone treatment were used. The results of the degradation process were compared to a reference system without pre-treatment. An enhancement of the degree of degradation of 7 ...

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The effect of implemented pulsed electric field (PEF ...

2014-5-14 · sludge disintegration in the stage of wastewater treatment or in the sludge stage is a possible strategy of sludge minimisation. Now many sludge disintegration technologies are being explored and partially already being implemented, e.g. stirred ball–mill, ultrasonic disintegrator, ozone [6–11]. A new method of

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Reduction of sewage sludge by ball mill pretreatment and ...

2010-7-17 · The effects of ball mill pretreatment and Mn catalytic ozonation on the reduction of sewage sludge were investigated. The ball mill pretreatment increased ΔSCOD from 2,000mg/L to 9,000 mg/L, as Total Solids (TS) increased from 1% to 4% at a specific energy of 75.8 KJ/g-TSS. The increase in disintegration ratio (DR), which is an index of the solubilization of sewage

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