Exploring Possibilities of Achieving Sustainability in
Solid Waste Management


Issues Of Importance:

SWM in Bangalore has definitely improved in areas of collection and transportation. However, waste processing and disposal is still a pressing problem to be dealt with. The informal network is very active in areas of recycling as this forms their only livelihood.However,there are various issues or constraints that have to be tackled to achieve significant strides in waste management.

The issues that have to be addressed are summed up as follows:

Exploring Methods to Improve the System:
 In order to improve the current solid waste management services it is essential to explore the various constraints or issues and to arrive at a suitable solution. Waste management involves a whole community and sufficient actions have to be taken to realise its full potentiality. Some of the issues that vie for attention are community participation, human resource development, promotingGIS-GPSsystemsto obtain reliable data on waste and legal mandates. Community participation:
Community participation is of paramount importance for a successful waste management
system and requires considerable planning and management. First and foremost municipalities should enhance their understanding of what participation is and what it involves. It is essential that they develop an understanding of the objectives of participation, the potential for community participation (when participation can take place, in what form, at what stage of the service delivery process) and what makes participation more sustainable. Capacity building thus requires a more detailed understanding of the needs of the public, the extent of awareness among the public, the livelihoods and characteristics of the poor. Municipalities can develop certain strategies to build capacity for community participation.

A series of measures can be taken to bring about a change in public behaviour through public awareness programs (The Expert Committee, 2000). They are:
(i) Promote "reduce, reuse and recycle" (RRR) of wastes among manufacturers and buyers.
(ii) Promote public participation in SWM systems adopted. Citizens should be made aware that wastes are not to be thrown on the streets, drains, water bodies, open spaces and also prohibit them from littering and open defecation. They should participate in primary collection of wastes, store wet and dry wastes separately at source and litterbins on roads and public places.
(iii) Provide information hotline.
(iv) Public education through group meetings, workshops, exhibitions, lecture series, panel discussions etc.
(v) Mass education through print media, use of cable TV/ radio/websites, use of cinema halls, street plays, posters, pamphlets, hoarding, primary school curriculum to cover the subject, resident associations etc. Human resource development:
          
Human resource developmentis very essential for internal capacity building for any organisation. Training motivation, incentives for outstandingservices and disincentives for those who fail to perform are essential for human resources development. Knowledge of new technology and methods coupled with training at all levels is necessart. Also, the corporators or elected members should be given appropriate orientation towards the need for modernisation of solid waste management system. Another aspect, which has immense potential but is often overlooked, is harnessing waste pickers or rag pickers in the city. This is the informal sector, which accounts for 15% of the waste retrieved from streets and dumpsites for recycling purposes.           Bangalore has an estimated 35,000 waste pickers, mostly women and children, who pick out discarded waste materials for a livelihood. Ragpickers around the city should be identified and encouraged to participate in waste collection. They can be elevated to 'waste collectors' and given badges or some identification documents so as to give some dignity to this much-neglected class. Ragpickers can be trained in door to door collection of wastes and in segregation of wet and dry waste. By imposing a monthly 'garbage' fee on the local residents, the waste pickers could generate an income. They can also earn an additional income by selling compost to the ,nearby farmers, and plastic and metals to the recycling industries. Since the number of pourakarmikas are not enough to handle the city's waste such training to waste pickers not only lightens the waste collection load but also rehabilitate the wastepickers.

GIS-GPS system for solid waste management system:

Good municipal solid waste management practices requires collection of critical information which is not just for keeping the records up to date but used effectively for taking corrective measures as well as proper planningfor the future.Thereis also a need for integrationand assimilationof information from various levels of jurisdiction. GPS-GIS systems can be powerful tools that can revolutionise the waste management systems in Bangalore.A management information system is required to manage large amount of spatial and attribute data related to the wards and generate reports (daily, weekly etc) at various levels levels (city,zone, range etc.) with details of the waste, typesof vehiclesetc. In Bangalore, trucksare the only means of removing garbage and other waste materials from the city. These vehicles perform multiple trips in a day and it is essential to monitor and track these trucks to improve efficiency.  In this regard, global positioning system (GPS) wouldbe helpful and cost effective.It also helps in optimising truck routes there by increasing the efficiencyof the transport mechanism. Analysis of spatial data i.e. landuse and land cover pattern, transport network, collection network etc., along with information related to quantity related to quantity and quality of wastes (through GIS) enable the authorities involved in waste management to come out with feasible options3. These tools have been selected because 80% of information used by the health official has spatial components (city,zone, range and health ward level). These systems can be installed in BMP and zonal offices and establish monitoring centers in Bangalore. Training can be imparted to personnel in handling and updating the data.GIS System for Waste Management in IISc Campus :
A GIS system has been developed for Indian Instituteof Science campus. The campus limits are enclosed within 13.01055° to 13.02083°latitude and 77.55944° to 77.57388° longitude. IISc is located in the northern part of Bangalore City having lush vegetation and campus has green canopy of trees covering the buildings. The main campus coversaround 150 hectares. IIS chas 40 departments,2 banks, 1 school, 4 canteens, 1 restaurant, 4 guest houses, 400 faculty members, 800 supporting staff, 1500 students and 450 residential quarters representing a typical urban community.The institute generates all kinds of waste arising from residential, commercial, education, open area and vegetative area. Waste bins of different types are distributed around the campus. Collection of waste is done by one truck, one tractor and mini pick up trucks. The frequency of collection is 1 to 3 days. Collected wastes are dumped or burnt at common dumping site about 12kms away from IISc. Regular street sweeping and roadside garden trimmings are done and wastes are dumped in bins. Transferring of waste to vehicles is done manually. The route followed is currently one convenient to the driver rather than from the collection point of view or from type and composition of wastes. All sensitive bins are not given priority in this method of collection.Thereis a need to evolve an optimal route evolved on the basis of waste composition and quantities generated in each bin. Integrating spatial information along with corresponding attribute information was part of the study. Mapinfo 5.5 was used to create vector layers from the Survey of India (SOl) toposheets of scale 1:1000. Digitised vector layers include boundary, road network, building distribution, distribution of bins, open dumping sites, land use and land cover, optimal routing etc.

Figure 1 represents the land use of IISc campus. Figure 2 depicts the proportion of waste generated in each zone. Figure 3 shows locations where wastes are collected. Figure 4 illustrates the optimal route for collection vehicle.

Studies were carried out at active bin sites. Theoretically provided optimal routing may not be apt, because of local conditions. Preference is given to collection of organic matter in order to avoid unaesthetic appearance, foul smell and animal problems. Optimal routing as shown in Figure 4 is arrived at, in such a way that zones with more domestic wastes are handled on priority while covering all zones and avoiding overlap. The corresponding micro routing for locations is felt as it is, considering experience of collection workers.

Legal Mandates:
There are no environmental laws in the Kamataka Municipal Corporation Acts specifically pertaining to SWM. Solid waste management practices can never reach the desired level of efficiency until the public participates and discharges its obligation religiously. In order to improve solid management practices in urban areas it is necessary to incorporate suitable provisions in the state law to ensure public participation and providing for minimum level of solid waste management. Some of the proposed legal provisions are as follows:


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