• Microbial growth reduction in sewage sludge by stirred

    sludge by stirred ball mill disintegration and estimation by respirometry Chockalingam Lajapathi Rai,1 ∗ Johannes Mueller,2 Georg Struenkmann3 and Paruchuri Gangadhar Rao4 1Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai 6000 20, India 2PFI Planungsgemeinschaft, KarlImhoffWeg 4, 30165 Hannover, Germany 3Institute of Mechanical Process Engineering

  • Mechanism Study of Excess Sludge Disintegration by

    Request PDF | Mechanism Study of Excess Sludge Disintegration by Stirred Ball Mill | Stirred ball mill() method is one of the usually method which applied in large scale application cases of

  • Mechanical disintegration of sewage sludge

    Mechanical disintegration of sewage sludge Lehne G(1), Müller A, Schwedes J Different ultrasonic homogenizers, a high pressure homogenizer and stirred ball mills were used for disintegration experiments using various parameters The influences of a mechanical disintegration on the particle size and of the energy intensity on the disintegration were investigated Further investigations

  • Cited by: 154
  • 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 Leather Research Institute, Adyar,

  • Microbial growth reduction in sewage sludge by stirred

    · Microbial growth reduction in sewage sludge by stirred ball mill disintegration and estimation by respirometry Chockalingam Lajapathi Rai Corresponding Author Email address: [email protected] Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai 6000 20, India Chemical Engineering Division, Central Leather Research Institute, Adyar, Chennai

  • Cited by: 13
  • Mechanism Study of Excess Sludge Disintegration by

    Stirred ball mill() 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 method Besides analysis general indicators of SCOD, TN, TP and calculated the disintegration rate of COD (DDCOD) The result indicated the SCOD and DDCOD increased with the

  • Cited by: 1
  • Microbial growth reduction in sewage sludge by stirred

    Treatment and disposal of sewage sludge from wastewater treatmeMicrobial growth reduction in sewage sludge by stirred ball mill disintegration and estimation by respirometry Lajapathi Rai 2008 Journal of Chemical Technology & Biotechnology Wiley Online Library

  • Cited by: 13
  • Mechanical disintegration of sewage sludge

    Mechanical disintegration of sewage sludge Lehne G(1), Müller A, Schwedes J Different ultrasonic homogenizers, a high pressure homogenizer and stirred ball mills were used for disintegration experiments using various parameters The influences of a mechanical disintegration on the particle size and of the energy intensity on the disintegration were investigated Further investigations

  • sludge disintegration with stirred ball mills – Grinding

    Microbial growth reduction in sewage sludge by stirred ball mill disintegration and estimation by respirometry Chockalingam Lajapathi Rai1,*,» Learn More Mechanical disintegration of sewage sludge Different ultrasonic homogenizers, a high pressure homogenizer and stirred ball mills were used for disintegration experiments using various parameters » Learn More Mechanism Study of

  • Microbial growth reduction in sewage sludge by stirred

    Treatment and disposal of sewage sludge from wastewater treatmeMicrobial growth reduction in sewage sludge by stirred ball mill disintegration and estimation by respirometry Lajapathi Rai 2008 Journal of Chemical Technology & Biotechnology Wiley Online Library

  • Mechanical disintegration of sewage sludge | Water

    · 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

  • Mechanism study of excess sludge disintegration by

    Abstract: Stirred ball mill() 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 method Besides analysis general indicators of SCOD, TN, TP and calculated the disintegration rate of COD (DDCOD) The result indicated the SCOD and DDCOD

  • Disintegration of sewage sludges and influence on

    The best results were obtained using a stirred ball mill and a highpressure homogenizer As a result of disintegration the degradation is accelerated and the digestion time can be reduced, especially when using immobilized microorganisms The treatment of digested sludge by ozonization respectively by mechanical disintegration led to an improved biodegradability of residual organic compounds

  • Sludge minimization technologiesan overview

    It is demonstrated that sludge minimization may be a result of reduced production of sludge and/or disintegration processes that may take place both in the wastewater treatment stage and in the sludge stage Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ballmill, highpressure homogenizer, ultrasonic

  • Minimisation of costs by using disintegration at a full

    · Capital costs for the stirred ball mill, costs for energy, manpower and maintenance can be covered if the specific costs for disposal are high If the development of costs in future and the current discussion about sludge disposal are taken into account sewage sludge disintegration can be a suitable technique to minimise costs at waste water treatment plants Dewatering properties

  • Anaerobic digestion and dewatering characteristics of

    Mechanical cell disintegration and its influence on anaerobic digestion was investigated using four different methods Methods to describe the degree of celldisruption were developed and the release of organic components into the sludge water was measured The best results were optained using a stirred ball mill and a highpressure homogenizer The influence of disintegration rate and

  • TRENDS IN INTENSIFICATION OF THE ANAEROBIC DIGESTION

    sludge disintegration were examined Best results were achieved while using the stirred ball mill or the high pressure homogenizer (500 x 105 Pa) An average energy consumption for these methods was: 0,224 kWh/kg of dry solids and 0,28 kWh/kg of dry solids, for ball mill and homogenizer respectively

  • Sludge minimization technologiesan overview

    It is demonstrated that sludge minimization may be a result of reduced production of sludge and/or disintegration processes that may take place both in the wastewater treatment stage and in the sludge stage Various sludge disintegration technologies for sludge minimization are discussed, including mechanical methods (focusing on stirred ballmill, highpressure homogenizer, ultrasonic

  • Minimisation of costs by using disintegration at a full

    · Capital costs for the stirred ball mill, costs for energy, manpower and maintenance can be covered if the specific costs for disposal are high If the development of costs in future and the current discussion about sludge disposal are taken into account sewage sludge disintegration can be a suitable technique to minimise costs at waste water treatment plants Dewatering properties

  • Reduction of sewage sludge by ball mill pretreatment and

    · 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 758 KJ/gTSS The increase in disintegration ratio (DR), which is an index of the solubilization of sewage sludge, was

  • Advanced Materials Research Vols 518523 | p 65

    Abstract: Stirred ball mill() 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 method Besides analysis general indicators of SCOD, TN, TP and calculated the disintegration rate of COD (DDCOD) The result indicated the SCOD and DDCOD

  • DWAIWAMA2 International Capacity Development Workshop

    Disintegration of sewage sludge Application of physical, chemical, biological forces • Destruction of flocs • Disruption of microorganisms • Decrease in particle size • Increase in soluble compounds (C, N, P) = Disintegration disintegrated Stirred ball mill, DD o = 28% untreated 100 µm ||

  • Improvement of Anaerobic Sludge Digestion by

    agitated ball mill (ie, glass bead mill), the highpressure homogenizer (ie, French press and MantonGaulin homogenizer), and ultrasonic decomposition Dichtl (1996) and Nickel and Neis (1996) have shown that disruption of sewage sludge by these mechanical techniques reduces the amount of sludge, decreases the digestion time, and increases the amount of digester gas produced DIGESTION OF

  • Mechanical disintegration to reduce final sludge production

    Sewage sludge disintegration can be defined as the destruction of sludge by external forces These forces can be of physical, chemical or biological nature For mechanical disintegration various methods are used like stirred ball mills, highpressure homogenizers, ultrasonic disintegrators, lysatecentrifugal technique, high pulse power technique and others A result of the disintegration

  • TRENDS IN INTENSIFICATION OF THE ANAEROBIC DIGESTION

    sludge disintegration were examined Best results were achieved while using the stirred ball mill or the high pressure homogenizer (500 x 105 Pa) An average energy consumption for these methods was: 0,224 kWh/kg of dry solids and 0,28 kWh/kg of dry solids, for ball mill and homogenizer respectively

  • EFFECTS OF PULSED ELECTRIC FIELD (PEF) APPLICATION ON

    Many sludge disintegration technologies are being explored, eg stirred ball–mill, ultrasonic disintegrator, ozone The pulsed electric field (PEF) treatment can also be implemented for the release of sludge components In comparison to other techniques the special characteristic of the PEF implementation are its predominant effect on cell membranes By theory PEF implementation

  • ball mills, company and costs, sludge treatment

    Minimisation of costs by using disintegration at a fullscale Two stirred ball mills and a plant for oxidation with ozone were applied If the development of costs in future and the current discussion about sludge disposal can be a suitable technique to minimise costs at waste water treatment plants Get Price Pulp Mill Sludge alive Aug 26, 2006 In spite of a growing list

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