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Fecal Sludge Management

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Fecal sludge management for a healthy Ganga

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Fecal Sludge Management

  1. 1. Fecal Sludge Management
  2. 2. Typical Public Emptying and Transport
  3. 3. Typical Private Emptying and Transport
  4. 4. Why empty septic tanks? Source: USAID, 2010
  5. 5. Scheduled Desludging with Sanitation Tax Cases: Philippines, Vietnam and Indonesia Dumaguete • Population: 0.12 million - about 75% septic tank coverage) • Service by Municipality • Tariff: 2 pesos (USD 5 cents) per m3 of water consumed • Covers O&M and capital costs in 8 years San Fernando • Population: 115,000 • Service by Private sector • Fees through property tax Hai Phong • Population: 1.8 million • Service by state run utility company • Wastewater fee – 15% surcharge added to the water bill • Water tariff of USD 0.29/m3 and daily consumption of 0.54m3 • Recover O&M costs Cost Recovery • Town size 5,000 to 25,000 households • Tariff of USD 1 per month per family • Full cost recovery of both capital and operations cost
  6. 6. Fecal Sludge Energy Biogas Bio-char (Solid fuel) Pyrolytic and Syngas Bio-Oil Nutrients Soil conditioner Macronutrients Fodder Fish Protein Production Water Irrigation Other Building Material Reuse of Fecal Sludge
  7. 7. Co-Composting Case: Balangoda Municipality, Sri Lanka Waste: 12 ton MSW and 10 m3 fecal sludge Capital: INR 2.1 crores O&M: INR 85K/month Revenue: • FS collection: INR 1,800 to 2,000 per trip • Compost: INR 4 per kg • Recyclable & MSW fees
  8. 8. Septage Co-treatment Co-treatment in existing STP Co-composting with other organic waste Standalone facility for septage handling & Disposal - Sludge Drying Beds - Mechanical - Planted Gravel Filter - DEWATS - Lagoon - Land Application Septage Treatment Technology Options
  9. 9. Cost Recovery from Reuse Case Example Three neighboring towns in Madhya Pradesh (population of 7,784 households) • Fecal Sludge: about 40 m3 • MSW: 12.8 tons of MSW per day • Compost: 4.4 tons per day • Sale price of compost in India: INR 1,400 to INR 4,000 per ton Cost Recovery • User charges: INR 84 to 122 per household per month • Reduction in user charges from sale of compost: INR 20 to INR 57 per month (depending on the sale price)
  10. 10. Business Models & Cases IWMI Business Model RRR Catalogue • Waste: MSW, FS, Agro- industry waste and Wastewater • More than 150 business cases and 20 business models • On FSM – 18 business models
  11. 11. Thank You

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