Newsletter and Technical Publications
<Municipal Solid Waste Management>
Regional Overviews and Information Sources
Latin America and the Caribbean
2.4 Topic h: Management and planning
Professionals in Latin America and the Caribbean agree
that this topic covers the central issues that need to be addressed urgently to
improve services in the MSW area. They state that technologies are well
developed, and although small improvements are definitely necessary, the quality
of services is now more dependent on improving the present management systems.
Throughout the region, local governments are responsible for management of
solid wastes within their jurisdiction. Larger urban areas tend to have a solid
waste department, whereas smaller or less organized cities often have a
municipal works department that is responsible for MSW. Whether services are
privatized or publicly managed, these departments are the responsible entity for
supervision of all phases of operation. However, except for a few cases (such as
Buenos Aires, Sao Paulo, and Rio de Janeiro), the performance in these areas is
quite low, since work in the solid waste area is viewed more as a punishment
than a reward, and neither operation nor supervision is carried out
appropriately. The participation of private contractors is expected to change
this.
There is a visible demand for solid waste management master plans, and a
number of cities are working on them. However, few plans have been implemented
and solid waste management programs are largely improvised, heavily influenced
by the political environment of the moment. Pressure to improve waste collection
services has led in some cases to the strengthening of local governmentsÕ
institutional capacity as well as to privatization of services.
Many cities have opted to carry out the management of solid wastes directly
through the city administration. Large cities such as Mexico City (where the
solid waste department is strong and well staffed), as well as most small
capital cities, work under this scheme. By contrast, staffing is very deficient
in many Central American and some Andean cities. Sao Paulo has contracted out
the direct supervision of private contractors, thus reducing costs, while
keeping the overall supervisory role.
Other large cities have commercialized management of solid wastes through the
creation of municipal enterprises. This is the case of Buenos Aires, Lima, Rio
de Janeiro, Bogota, Santiago, Caracas, Medellin, Belo Horizonte, La Paz, and
Port of Spain. In these cases, the enterprises are owned by the municipality,
but they function independently. The financing of the enterprises varies. In
some cases they have a mandate to be completely self-sufficient (this is the
case of CEAMSE - Cinturon Ecologico del Area Metropolitana Sociedad del Estado -
in Buenos Aires, and the solid waste authority in Port of Spain), while in other
cases, all financial resources come through the municipality (e.g., ESMLL in
Lima). In most cases, there is a combination of direct income and subsidies from
the local government.
Private sector involvement
In all countries there is some level of private sector involvement in solid
waste management. This involvement comes at all points in the waste management
chain (during recycling, collection, transport, and disposal) and is carried out
by all sizes of enterprises, from large-scale multinationals to small-scale
enterprises. The efficiency of these private sector enterprises varies
significantly.
In many cities collection of wastes is in the hands of the private sector,
whether the municipality or the enterprise is responsible for management of
solid wastes. For example, in cities such as Sao Paulo, Buenos Aires, Bogota,
Santo Domingo, and La Paz, waste collection is done almost completely by private
enterprises. The work done by the municipality or the municipal enterprise is
then confined to supervision.
The quality of supervision depends on institutional capacity. For example, a
number of municipalities in Mexico have turned to private firms in order to
improve services, but the municipalities have little or no experience in
arranging service contracts, awarding concessions, and monitoring compliance
with contract conditions. Consequently, performance standards under such
arrangements are neither satisfactorily established nor adhered to, and expected
levels of efficiency are rarely, if ever, achieved.
In some cases, such as Guatemala City, collection is done by the private
sector. However, the private sector's participation is a result of the lack of
municipal infrastructure and not of a plan to bid out the services. In this
case, collection enterprises have ill-defined territories in which they collect
wastes. They charge households directly for their services. In some cases, when
a household is not happy with the services provided by one enterprise, another
enterprise is hired. As a result, two separate enterprises may serve the same
block.
Private sector, small-scale initiatives are also happening in low-income and
difficult-access areas. Small-scale waste collection enterprises are operating
or in the planning phase in Bolivia, Colombia, Costa Rica, Ecuador, Panama, and
Peru. These enterprises have started under the sponsorship of NGOs or technical
cooperation organizations. They usually have an agreement with the local
government in which the government pays them for their services or allows them
to collect fees directly from the households in their area.
The success or failure of these enterprises depends on a number of factors.
First, there needs to be a good understanding between the municipality and the
enterprise, so that jurisdictions and cost-recovery systems are well defined.
Also, appropriate training of personnel within the enterprise is needed, not
only on the waste collection system but also in management of the enterprise.
The latter has become the most difficult one to deal with, since individuals
forming these enterprises have seldom worked in a formal setting.
Enterprises having all female personnel have demonstrated greater efficiency.
These women are usually single mothers in great need of work, and the
enterprises are one of the few job sources within the community (i.e., close to
home). Also, these women are conscious of the relationship between proper waste
management and good health.
Though not found as frequently, the private sector is also involved in
operation of landfills. For example, in Buenos Aires, as well as in some of the
large cities in Brazil, landfills are in the hands of private operators. Other
cities with privately operated landfills are located in Colombia, Ecuador,
Mexico, Panama, Paraguay, and Venezuela. In addition, most manual landfills are
operated by small-scale enterprises.
Performance monitoring and enforcement
There is little regular performance monitoring of solid waste operations in
the region. Performance is usually measured as part of studies that assess waste
collection and disposal efficiencies at one point in time. Thus, these studies
rarely show time series. The results of these studies are used as planning
tools.
Enforcement programs are practically nonexistent. The reason for this is
two-fold. First, legislation on MSWM in the region is very weak, so there are
few legal instruments that can be used effectively in an enforcement program.
Second, solid waste management has traditionally been the responsibility of the
local governments, which, claiming lack of resources, do not take enforcement
measures.
Examples of efforts directed toward the poor
In Curitiba, Brazil, several innovations were introduced to promote proper
waste management in the poor areas of the city. The "Garbage that is not
Garbage" program attempted to promote recycling based on source separation.
This program has not been very successful in terms of quantities collected, and
the cost of collection of recyclables is approximately ten times that of
collecting garbage.
On the other hand, the "Garbage Purchase" program has been
successful in achieving the main objective of promoting the reduction of wastes
in the streets. The program "purchases" garbage bags in exchange for
food or transportation vouchers. A similar program, the "Garbage
Exchange," has been initiated in the city of Cuauhtémoc, Mexico. In this
case, six bags of garbage are exchanged for one bag of basic foods. The
community itself suggests the type of food.
The success of these garbage exchange programs depends on two basic issues.
First, the program needs to be sustained over time. Second, the costs need to be
absorbed as part of the social program of the city and must not be considered to
be part of the MSWM system.
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