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Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
Composting process and organic fertilizers production
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Composting process and organic fertilizers production

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Aerobic composting process, methods and technology and brief description on the conversion stages from mature compost into granule organic fertilizers. This article was presented before a steering …

Aerobic composting process, methods and technology and brief description on the conversion stages from mature compost into granule organic fertilizers. This article was presented before a steering committee in Jakarta in August 2012 on a MSW project.

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  • 1. COMPOSTING BASICSDECOMPOSITION OF = STABILIZATION OF ORGANIC MATTER ORGANIC MATTER NATURAL PROCESS HUMAN INTERVENTION SLOWLY, UNCONTROLLED QUALITY; ACCELLERATION,HIGHER QUALITY MAY CAUSE POLLUTION AND BETTER SANITATION COMPOST (HUMUS, CRUMBLY TEXTURE)10/8/2012 Wirajasa Teknik Industri 2
  • 2. COMPOSTING PROCESS ORGANIC MATTER COMPOST MICROBIAL WATER WATER PROCESS HEAT OXYGEN CO210/8/2012 Wirajasa Teknik Industri 3
  • 3. DECOMPOSERS • BACTERIA • FUNGI • ACTINOMYCETES MICROORGANISM • PROTOZOA • MITES • MILLIPEDES • INSECTS • SOWBUGS • EARTHWORMS INVERTEBRATES • SNAILS10/8/2012 Wirajasa Teknik Industri 4
  • 4. ORGANISM IN THE FOOD WEB10/8/2012 Wirajasa Teknik Industri 5
  • 5. TEMPERATURE Thermophilic >50° C (>120°F) Mesophilic 10-45C (50° - 110° F)10/8/2012 Wirajasa Teknik Industri 6
  • 6. TYPES OF MICRO-ORGANISMAEROBIC ANAEROBIC• Require a minimum 5% • Thrive on oxygen oxygen deficient environment• Most rapid and effective • Refer to as Fermentation• Generate heat and CO2 • Generate offensive odor• Psychrophilic: 5° C (40°F) (H2S, cadaverine and• Mesophilic: 10° - 45° C (50° putrescine ) - 110° F) • Produce toxins to plants• Termophilic: >50° C (120°) (acids and alcohols)10/8/2012 Wirajasa Teknik Industri 7
  • 7. KEY FACTORS TO COMPOSTING C:N Ratio • The range between 25:1 to 40:1 → efficient processSurface Area & Particle Size • The smaller the size the faster the process Aeration • Air circulation enhances aerobic decomposition Porosity • Spaces between particle enable supply of oxygen Moisture Content • Optimum moisture content is 50% to 60% Temperature • Optimum temperature range is between 32°to 60° C pH of Material • Optimum pH ranges between 6.5 to 7.5 Nutrients • Adequate levels of P and K are important Toxic Substance • Heavy metals are toxic to thermophilic bacteria10/8/2012 Wirajasa Teknik Industri 8
  • 8. CARBON TO NITROGEN RATIO Materials with high Nitrogen values C:N Poultry manure with litter 13-18:1 Vegetable waste 12-20:1 Pig manure solids 15-25:1 Dairy manure 20:1 Material with High Carbon Values C:N Wood chips and sawdust 100-500:1 Paper 150-200:1 Straw 40-100:1 Foliage (green) 30-80:1 Material with Neutral C:N Ratios C:N Peat moss 18-36:1 Horse manure with litter 30-60:1Source: British Columbia Department of Agriculture and Food, 1995 10/8/2012 Wirajasa Teknik Industri 9
  • 9. PRE-PROCESSING SORTING Accept Biodegradables Reject Contaminants SHREDDING Increase Surface Area Increase Porosity MIXING Optimize C : N Ratio Increase Homogeneity10/8/2012 Wirajasa Teknik Industri 10
  • 10. COMPOSTING METHODS Passive Windrow and Bin Composting • Low Technology and Medium Labor cost • Medium quality product Turned Windrow • Medium technology and Medium labor cost • Uniform product Aerated Static Pile • Medium technology and Low labor cost • Non uniform product In-Vessel and Agitated Bed • High technology and Low labor cost • Uniform product10/8/2012 Wirajasa Teknik Industri 11
  • 11. PASSIVE WINDROW10/8/2012 Wirajasa Teknik Industri 12
  • 12. TURNED WINDROW10/8/2012 Wirajasa Teknik Industri 13
  • 13. AERATED STATIC PILE10/8/2012 Wirajasa Teknik Industri 14
  • 14. IN-VESSEL COMPOSTING10/8/2012 Wirajasa Teknik Industri 15
  • 15. AGITATED BED/CHANNEL Mature Compost Rail Mature Compost 750 mm Aeration Piping Raw Compost10/8/2012 Wirajasa Teknik Industri 16
  • 16. AGITATED BED/CHANNEL10/8/2012 Wirajasa Teknik Industri 17
  • 17. COMPOST TURNER10/8/2012 Wirajasa Teknik Industri 18
  • 18. TOP AND SIDE VIEW10/8/2012 Wirajasa Teknik Industri 19
  • 19. AERATION PIPING IN FLOOR10/8/2012 Wirajasa Teknik Industri 20
  • 20. COMPOSTING PLANT LAYOUT 145m 36 m Decomposition Bed/Channel Fertilizer 28 m Production Area Shredder Conveyor Compost TurnerWidth 56 m Material Flow Loader Decomposition Bed/Channel Monitoring Laboratory Compost Turner Product Storage Room Length 190 m10/8/2012 Wirajasa Teknik Industri 21
  • 21. FERTILIZER PRODUCTION MATURE COMPOST 3. GRANULATING 6. PACKING 1.CRUSHING 4. DRYING 5. SCREENING/ 2. FILTERING Note: For more COOLING information on the production process see separate presentation.10/8/2012 Wirajasa Teknik Industri 22
  • 22. MARKETING STATEGY Diversified Recorded Networking Products Field Test10/8/2012 Wirajasa Teknik Industri 23
  • 23. THANK YOU 谢谢 For more information please contact Suhardiyoto Haryadi, email address: suhardiyoto@hotmail.com or suhardiyoto@gmail.com10/8/2012 Wirajasa Teknik Industri 24

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