Waste collection and it's transportation process and methods
- 1. Solid Waste Management- Collection and Transportation
- 2. • Collection of segregated municipal waste is an essential step in MSWM. Inefficient waste collection services have an impact on public health and aesthetics of towns and cities. • Collection of wet, dry and domestic hazardous waste separately ensures maximum recovery of recyclables. It also enhances the potential of cost- effective treatment of such wastes. eg. production of compost from pure organic waste. • Waste collection services are divided into – Primary Collection – Secondary collection. • Primary collection refers to the process of collecting, lifting and removal of segregated solid waste from source of its generation including households, shops, offices, markets, hotels, institutions and other residential or non-residential premises and taking the waste to a storage depot or transfer station or directly to the disposal site, depending on the size of the city and the waste management system Introduction
- 3. • Primary collection must ensure separate collection of certain waste streams depending on the separation and reuse system applied by the respective town or city . • Secondary collection includes picking up waste from community bins, waste storage depots, or transfer stations and transporting it to waste processing sites or to the final disposal site. • At the secondary collection points, segregated waste must be stored on-site in separate covered bins for further collection and should be kept separate during all steps of waste collection, transportation, and processing. ULBs should ensure that at the secondary storage points the waste is should be attended daily or before container starts Introduction-Cont..
- 4. • A well synchronized primary and secondary collection and transportation system, with regular and well communicated intervals of operation (primary collection), is essential to avoid containers’ overflow and waste littering. • The vehicles used for transportation should be covered. • Vehicles should have a facility to prevent spillage of waste and leachate en-route to the processing or disposal facility. • It is essential to separate street sweeping waste and silt cleaned from drains completely from household waste streams through all stages of collection, transport, and treatment, since street sweeping and drain silt can be infiltrated with significant amounts of toxic substances (e.g., heavy metals) and are often responsible for contamination. Introduction-Cont..
- 5. Flow Chart for Household Waste Collection, Transportation and Disposal
- 6. Flow Chart for Collection, Transportation and Disposal of Vegetable Market Wast Processing plant (RDF/WTE) Composting PROCESSING SITE Dumper placer Skip loader Refuse collector tractor Dumper placer Compactors Hook loader Dumper placer Compactors Hook loader SECONDARY COLLECTION AND TRANSPORTATION Metal dumper bin (black) Metal dumper bin (white) Metal dumper bin (green) Others Non-biodegradable waste Biodegradable waste PRIMARY COLLECTION AND TRANSPORTATION Waste from vegetable market Residue from processing plant (not to exceed 15% of waste delivered at processing facility) and further to be reduced to less than 5% within the stipulated time frame. Inert waste to be disposed at landfill DISPOSAL SITE
- 7. Duties and responsibilities of local authorities • Arrange for door to door collection of segregated solid waste from all households including slums and informal settlements, commercial, institutional and other non-residential premises • Prescribe from time to time user fee as deemed appropriate and collect the fee from the waste generators on its own or through authorised agency; • Setup material recovery facilities or secondary storage facilities with sufficient space for sorting of recyclable materials to enable informal or authorised waste pickers and waste collectors to separate recyclables from the waste. • ensure safe storage and transportation of the domestic hazardous waste to the hazardous waste disposal facility or as may be directed by the State Pollution Control Board or the Pollution Control Committee;
- 8. • Street sweepers not to burn tree leaves collected from street sweeping and store them separately and handover to the waste collectors or agency authorised by local body; • collect separately waste from sweeping of streets, lanes and by-lanes daily, or on alternate days or twice a week depending on the density of population, commercial activity and local situation; • Waste so collected shall be collected and disposed of at regular intervals as decided by the local body; • collect waste from vegetable, fruit, flower, meat, poultry and fish market on day to day basis and promote setting up of decentralized compost plant or biomethanation plant at suitable locations in the markets or in the vicinity of markets ensuring hygienic conditions; • collect horticulture, parks and garden waste separately and process in the parks and gardens, as far as possible; Duties and responsibilities of local authorities-Cont..
- 9. • transport segregated bio-degradable waste to the processing facilities like compost plant, biomethanation plant or any such facility. • transport non-bio-degradable waste to the respective processing facility or material recovery facilities or secondary storage facility; • transport construction and demolition waste as per the provisions of the Construction and Demolition Waste management Rules, 2016; Duties and responsibilities of local authorities-Cont..
- 10. LOCATION AND ORGANISATION OF PRIMARY COLLECTION • Primary collection of segregated MSW from individual households and establishments (door- to-door collection) is accomplished through the use of containerised pushcarts, tricycles or small mechanised vehicles, compactors, or tipping vehicles depending on the terrain of the locality, width of streets, and building density. • Spacious and well-lit safe neighbourhoods allow collection systems with compactor vehicles and tipping equipment which are more efficient.
- 11. LOCATION AND ORGANISATION OF PRIMARY COLLECTION • In cramped neighbourhoods, handcarts or pushcarts, or tricycles or small mechanised vehicles may be used for door-to-door collection of waste • Segregated waste from households in hilly areas should be collected using backpacks having small leak proof containers up to 50l capacity or using local traditional load- bearing methods like pack animals, shoulder poles, headbands, wheeler bags, etc
- 12. • The waste collectors should be well equipped with personal protective equipment (PPE) and should also be provided with a whistle to announce their arrival for waste collection. • The frequency of door-to-door collection should be determined by the density of population, collection system, and climatic conditions • Domestic waste should be collected in the morning. Waste from the commercial areas should be collected between 10a.m. and 2p.m. LOCATION AND ORGANISATION OF PRIMARY COLLECTION- Cont..
- 13. • Vegetable market waste should be collected in nonpeak hours (early morning, late afternoon, or at night). The collection of market waste might also need to be done more than once a day. • The municipal authority may engage with RWAs, CBOs, NGOs, SHGs, or the private sector in providing door-to-door collection services. • Penal provisions may be introduced after assessment or review of overall management system for failure of service where contracts are awarded. LOCATION AND ORGANISATION OF PRIMARY COLLECTION- Cont..
- 14. • Door-to-door collection bye-laws may be introduced with special mandate for citizens to hand over the MSW to any Society or the agency authorised by ULB. • ULB may introduce user charges and its provision within the bye-laws for compliance. • Penal provisions may be introduced for non- compliance of citizens, e.g., littering and non- participation in the door-to-door collection system. LOCATION AND ORGANISATION OF PRIMARY COLLECTION- Cont..
- 15. VEHICLES AND EQUIPMENT FOR PRIMARY COLLECTION Handcarts or tricycles with containers or bins • MSW tricycles should have mild steel epoxy painted and tipping containers of 350l (140 kg per trip). The tipping containers should be mounted on a standard tricycle . These tricycles are suitable for door-to-door collection from small lanes and small waste generators. Tricycles with hydraulic tipping containers • These vehicles are suitable for door-to-door collection of segregated waste for lanes with less than 5m width. They have a total payload capacity of nearly 600–900 kg per trip. The load height is approximately 1,500 mm from the ground level. They should have a leakproof MS
- 17. HAND CARTS WITH BIN
- 18. Door to Door Collection Bins
- 19. Door to Door Collection Bins
- 21. Twin Bin Vehicle
- 22. VEHICLES AND EQUIPMENT FOR PRIMARY COLLECTION Light commercial vehicles (mini trucks) with hydraulic tipping containers Four-wheeled mini trucks with international standard garbage collection bins • Normally the practice is to unload the small containers manually into the bin or the hydraulic container. The main advantage of the four wheeled mini truck using bins instead of a hydraulic container is that the loading height can be decreased from 1,500mm to 1,200mm or less from bins placed on the ground. A typical setup is that the vehicle can carry 8 bins of minimum 240 l. Bins should be made of injection or roto molded HDPE. Each mini truck should carry 4 green containers for wet waste and 4 blue containers for dry waste.
- 23. EQUIPMENT REQUIRED FOR PRIMARY COLLECTION Duties and responsibilities of local authorities:- Providing personal protection equipment including • uniform, • fluorescent jacket, • hand gloves, Heavy duty gloves • raincoats, • appropriate foot wear and masks • Clothes to cover whole body • Face mask to all workers
- 24. ROLE OF THE INFORMAL SECTOR IN PRIMARY WASTE COLLECTION • establish a system to recognise organisations of waste pickers and promote and establish a system for integration of these authorised waste-pickers and waste collectors to facilitate their participation in solid waste management including door to door collection of waste; • The informal sector in any city includes the kabadiwalas or scrap dealers (the kabadi system) and the waste pickers. • Facilitate formation of Self Help Groups, provide identity cards and thereafter encourage integration in solid waste management including door to door collection of waste • setup material recovery facilities or secondary storage facilities with sufficient space for sorting of recyclable materials
- 25. • The kabadi system network forms an important link in the overall waste recycling system and can be compared to micro- entrepreneurs who buy reusable and recyclable material • The kabadi system is involved in the purchase of about 70%– 75% of recyclables, they purchase recyclable waste from households, shops, and establishments • They segregate this waste in plastic, paper, metal, cardboard, glass, e-waste, etc. and then sell the segregated waste to the large wholesalers. • There is another set of informal sector known as waste pickers who also play an important role in the informal recycling system. They are instrumental in recovering discarded recyclable waste from the streets, bins, dump sites, etc. They pick up 5%–10% of the recyclables from the municipal waste to ROLE OF THE INFORMAL SECTOR IN PRIMARY WASTE COLLECTION-Cont..
- 26. • This form of mixed waste is fraught with danger and makes the waste pickers susceptible to injuries and infections. • In order to avoid child labour and unhealthy practice of segregation of recyclable material from soiled and infected waste without use of personal protective equipment (PPE), municipal authorities should make concerted efforts to integrate the informal sector of waste pickers into regular waste collection operations through the private sector, NGOs, CBOs, SHGs, and RWAs ROLE OF THE INFORMAL SECTOR IN PRIMARY WASTE COLLECTION-Cont..
- 27. • The aim should be to raise the status from waste pickers to waste collectors and provide them with working tools and PPE like gloves, shoes, full sleeves coat, etc. • The following are important prerequisites for defining any initiative to integrate informal sector into the formal system: (i) assessing the size of the existing informal system, (ii) assessing the quantity of material being handled, (iii) identifying the number of waste pickers and persons that are part of the kabadi system, and (iv) identifying their linkages to the wholesale market. • Waste pickers should be encouraged to form cooperatives through the involvement of local NGOs or self-help groups (SHGs), and should be allowed to collect recyclables from households. ROLE OF THE INFORMAL SECTOR IN PRIMARY WASTE COLLECTION-Cont..
- 28. Information, Education and Communication (IEC): • For increasing community participation in this initiative, organize community meetings to disseminate the details of the collection system and its functioning. • Mass media (jingles for radio channels, local advertisements) and print media may be used to further promote the initiative and sensitise people. • Ward-level lucky draw was carried out for registered users. • A annual calendar, with all necessary information and messages, to the households. • Brochures may be disseminated for further outreach and to sensitise people to the initiatives taken.
- 29. COMMUNITY INVOLVEMENT IN PRIMARY COLLECTION • Community participation in waste management activities is critical for ensuring a well-functioning collection system. • Active engagement of men, women, youth, and children should be given equal importance. • Separate group discussions, involvement of community leaders, community associations, SHGs, and local members who represent the interest of the community at large must be adopted.
- 30. SECONDARY COLLECTION AND TRANSPORTATION As specified under earlier, secondary storage or collection and transportation is necessary for waste collected from households by smaller vehicles such as carts, tricycles, auto rickshaws, etc. Wherever possible, it is advisable to synchronise primary collection and secondary collection, thereby avoiding the need for secondary storage bins or depots.
- 31. • Segregated waste at the household level is collected by primary collection vehicles, which directly transports this waste to secondary collection vehicles. Secondary collection vehicles are parked daily at specific locations for the entire time during primary collection. • Separate vehicles or chambers within a vehicle should be provided to ensure segregated transportation of waste. • Direct transfer of waste from the primary collection point to secondary collection vehicles promotes a bin-less arrangement for waste collection and transportation. Issues related to placement of bins, littering around bins, non- lifting of bins as per schedule, and continuous movement of fleet to lift bins and replace them are avoided. • However, such systems are successful only when there is sufficient fleet of secondary collection vehicles to synchronise with primary collection and where good coordination systems exist. SECONDARY COLLECTION AND TRANSPORTATION-Cont..
- 33. SECONDARY STORAGE Storage depots are required for secondary collection of waste in cities where the bin-less system is not adopted. In most cities, the following types of waste storage depots exist: – Cement-concrete bins – Masonry bins – Dhalaos – Metal bins or containers • Being unhygienic, cement concrete bins, masonry bins, and dhalaos are being replaced by metal containers. • In general, waste storage containers should be covered and designed to facilitate mechanical lifting to avoid multiple handling and environmental harm. • It is necessary to wash community bins at regular intervals to ensure a healthy and hygienic environment for users and workers.
- 34. Synchronised Primary Collection and Secondary Storage
- 35. SECONDARY SEGREGATION AT TRANSFER STATIONS • Unsegregated waste, which has not been sorted at primary level, should be segregated either at an intermediate stage (e.g., transfer station) or at the processing plant, prior to treatment, in cases where waste is brought directly to the plant from the waste collection areas. • Segregation may be accomplished through manual or mechanised segregation. • Multiple handling of waste should be avoided.
- 36. VEHICLES AND EQUIPMENT FOR SECONDARY TRANSPORTATION • Larger capacity vehicles should transport waste from the secondary or tertiary collection point (depot or transfer station) to the processing and treatment facility or landfill. The types of vehicles should synchronise well with containers placed at depots or transfer stations to prevent multiple handling of waste. Vehicles Typically Used for Secondary Transportation of Wastes • Skip truck (dumper placer) • Refuse collector without compactor • Rear loading compactor truck (refuse compactor) • Light commercial vehicle with tipping floor • Hook loader or hook lifter
- 37. VEHICLES AND EQUIPMENT FOR SECONDARY TRANSPORTATION-Cont.. Skip Truck (Dumper Placer) • Skip trucks are used for transportation of skips (dumper bins) of different sizes to treatment or disposal sites (Figure 2.13). The usual skip sizes are 2.5m3, 3m3, 4.5m3, and 7m3. When a full skip (container) is lifted, an empty skip should be replaced to prevent littering. These are also appropriate vehicles for transportation of inert or construction and demolition (C&D) waste.
- 38. Skip Truck (Dumper Placer Machines)
- 39. Refuse Collector without Compactor • At places with small size containers of 0.5 to 1.1m3, the refuse collector vehicle without compactor of 6 to 15m3 capacity was used in some cities which lifted and unloaded the contents of the small container into the body of the vehicle through a hydraulic system and put the empty container back in place. These are now being replaced by refuse compactors.
- 40. Secondary Collection Bins to Refuse Compactor
- 41. TRANSFER STATIONS • In large cities where disposal sites are more than 15 km away from the collection area, it is economical to set up transfer stations as tertiary storage depots to save transportation time and fuel. • The smaller municipal authorities should consider setting up simple transfer stations having a ramp facility for transfer of waste from a small vehicle or container to a large hauling vehicle. Types of transfer stations: Direct Unloading: A direct unloading system involves a two-level arrangement, wherein the collection vehicles drive up a ramp to the upper level to discharge the waste into a transfer vehicle parked onsite or loading system Unloading-to-Storage: An unloading-to-storage system involves collection vehicles discharging into a storage area. From the storage area, wastes are subsequently loaded into transfer vehicles.
- 42. Transfer Station
- 43. Typical activities at the Transfer Station
- 44. Thank You