Tuesday, 17 January 2012

INTEGRATED SOLID WASTE MANAGEMENT


                An amount of 30,000 tonnes per day is expected to be accumulated in Malaysian country in the near  2020 year. Past decisions on waste management strategy and the structure of waste management system have relied on the waste management hierarchy. The hierarchy gives the following order of preference i.e. waste reduction, reuse, materials recycling, composting, incineration with energy recovery, incineration without energy recovery and landfilling. However, such use of a priority list for the various management options has serious limitations.  Technically, the hierarchical concept is far from scientific for the reason that none of the management technology resulted in an optimal result. Due to this reason, there is a need to radically improve solid waste management practices in Malaysia. Recently, the Malaysian Government Policy has outlined an emphasis on the policy and the management of solid wastes in which it has to be implemented in holistic and well-planned manners.  In order to implement the strategy, the concept of integrated solid waste management that take into consideration the impact analysis of each of the waste management option need to be considered. The advantages of implementating holistic technique of solid waste management  are the concept able to contribute to the economic increase of a country and reduce the impacts of the pollutants to the environment.
              The integrated management system combines both holistic and sustainable environmental-friendly approaches. The system starts from the initial point of accumulation until the final point of disposal (disposal sites). The in-between components between the two points according to its order are the pre-sorting technology, collection, central sorting, recycling, biological treatment, thermal treatment and finally landfilling. In order to produce an efficient, systematic, technologically-enhanced and innovative management system, it is necessary to combine all the existing technologies and for each of the technology, various techniques and approaches are further suggested in order to ensure that each component is functioning effectively




Model of integrated solid waste management