Aerobic and Evaporation Method of Landfill Improvement Case Study of Vunato Disposal Site (VDS) Lautoka City Council 1

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1 Japanese Technical Cooperation Project for Promotion of Regional Initiative on Solid Waste Management in Pacific Island Countries (J-PRISM) Aerobic and Evaporation Method of Landfill Improvement Case Study of Vunato Disposal Site (VDS) Lautoka City Council Presented by: Shalend Prem Singh Lautoka City Council 1 shalendsingh75@yahoo.com

2 1. Major Features of VDS Before/After Rehabilitation Before Open dumping in ad hoc basis Uncontrolled scavenging Regular dump fires and complaints No Proper Access and Drainage Only two staffs Old machinery and lack of maintenance No form of recycling Improper facilities Lack of data management and reporting Unsustainable financing No demarcation of area Fewer dump visits After Controlled systematic landfilling under Aerobic and Evaporation System Controlled with permit/osh compliance Reduced significantly 100% improved. Special waste disposal area 7staffs and 24 hours security Excavator, D6, wood chipper, MPT, weighbridge, brush cutters etc Market composting/waste pickers recycling Air conditioned office, wash room etc Proper data management and reporting Tipping fee using weighbridge system Proper surveyed boundary clearly defined No. of visits increased dramatically

3 Location of Vunato Disposal Site from Lautoka City Vunato Disposal Site 2016/4/21

4 2. Situation of VDS Prior to Improvement 4

5 3. VUNATO DISPOSAL SITE PRESENT LAYOUT Access road To divide into different sections, and prevent scattering waste into roads and drains To prevent expansion of landfill area to the surroundings To access to the landfill section smoothly Access road Enclosing bank Concrete slab All weather access road into the disposal area Compost yard To compost vegetable waste separate at the market Weighbridge Periphery bank Weibridge Data System in Vunato 3.0m To isolate the disposal site from the residential area 0.5m garbage 4.5m Send data through Internet To measure the weight of incoming waste Concept of Aerobic-Evaporation Lautoka Disposal system

6 4. Basic Measures for Improvements 1. Strengthening management system Define boundary of the disposal site Established a data management system by introduction of weighbridge Levy fair tipping fee according to waste category and origin of waste. Prepared landfill plan 2. Minimization of environment impact to the surroundings Constructed buffer zone, enclosing banks (cells). Constructed special waste area Established an environmental monitoring system (Environmental Management Plan) 3. Establishment of landfill operation system Adopt Aerobic and Evaporation operation (thickness=50cm) Man power reinforcements (10 staffs) including security. Control of waste pickers (permit ). Prepared access road and drainage. Maintained the creeks and surrounding. Regular fly Spraying. Servicing and maintenance of plants/equipment Composting, recycling and green waste chipping

7 5. Adopted Aerobic and Evaporation Method of Land filling 0.5m garbag e 3.0m 4.5m Features Spread waste upto height of 0.5 m across cell. Leave to rehabilitate Move operation to next cell Return to same cell once disposal is completed in other 5 cells ( 8 10 months) 7

8 Advantages/Disadvantages of Aerobic and Evaporation Landfilling Method Advantages Overall - Cost effective Less technical - Easy to manage. Effective in eliminating moisture from waste pile (reduced leachate generation). Recyclables can be easily recovered by waste pickers. Low maintenance cost. Decomposition under aerobic condition Less foul odor Disadvantages Unsightly Waste scattering due to no soil covering. Fly nuisance Risk of fire outbreak No leachate treatment facility leachate might seep to underground water table esp. during rainy weather. Bigger working phase

9 Sample Report for Month of February 2016 Waste Category Grand Total Tipping fee Amount ($) City Area 3, % 51, % Garbage collection(1) % , % Green (incl. Ravin)(9) % % Park(12) % % Drain/Street Sweeping(11) % , % Market(7+8) % % Others(LCC,Ravin) % , % Special Waste (27) % , % H/hold direct discharge (2) % % Business (5) % , % Hotel Waste (14) % % Garbage (others) % % Hospital Ash (22) % % Factory waste (18) % , % Construction Waste (23) % % Condemned Food (20) % , % Others (16) % % Outside City area % 29, % NTC Garbage (3) % , % Construction(24) % % Factory(19) % % Hotel (15) % , % H/hold direct discharge (4) % % Business (6) % , % Condemned food(21) % % Special waste(28) % , % Garbage (excl. NTC)(3) % % Park (13) % % Drain/Street Sweeping(29) % % Grand Total 4, % 81, % Recycle -Waste pickers 30.1 ton/month Weighbridge fees (32) Grand Total Income 82,404.59

10 Improvement Works conducted under the 3R/J-PRISM /Shibushi Model Project Access road Access and Drainage Enclosing bank Visits to VDS Market Waste Composting Weighbridge Waste Pickers

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12 Access Improvements

13 Vunato Disposal Site Operation Periphery banks Drain Maintenance Secondary Access Access Litter free Canals to sea Secondary Access and cell under rehabilitation Disposal Site

14 Let s make it a success!! Vinaka!! 14