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A new waste management strategy for Singapore
Transcript of A new waste management strategy for Singapore
-----Resource recovery facilities minimise:
Surface and groundwater contamination
Odour, dust, noise, litter
Impacts on natural vegetation
Greenhouse gas emissions Economic benefits:
Generates revenues from the production of compost and/or energy
Minimises the impact of increasing landfill costs and the landfill levy Social benefits:
Reduces community impact of waste management on the environment
Raises community awareness and interest in the importance of sustainable waste management How can we promote to this strategy to the public? Types of disposed waste in SG Paper & cardboard(20%)
Others(24%) SG' s current main waste management strategy: Solid waste management infrastructure By:Group JCQBK Members: Cheryl Qian HUi JinWen Benneth Keshav 2E1 Singapore's current strategy may not be a long-term method to manage the increasing trend of waste disposed Different methods of waste management in other countries United Kingdom Korea Australia Resource Recovery Evaluation of the strategies Working with local waste companies & government to carry out door-to-door visits to the residents to educate & inform them about the new waste management strategy the government will carry out soon Organize campaigns to educate the public about the importance of the new strategy & the benefits of it Distributing brochures of details of the new strategy & tips of reducing amount of disposal waste in neighborhoods to notify the residents. Asking local companies & industries to play their part by sorting out their waste materials before proper disposal Therefore,our group started on researching for strategies used in other countries to reduce the amount of waste disposed. Why? The government is making efforts to increase the country population as SG is facing a low rate of population growth. Hence,more waste will be produced from the growing population. The NEA have to come up with a new,long-term strategy to clear the huge amount of waste more efficiently without using up more pieces of land since SG is facing land constraint at the same time. The strategy must not cause health problems. Therefore, a major issue faced by the government. Overall,introducing new ways to manage waste in SG is essential & vital Although implementing measures to minimize amount of waste & recovering resources from waste even as recycling rates increases, not everyone is willing to participate in recycling. Thus, a small increase in recycling rates. Recycling Recyclables are sorted out & retrieved from the waste for processing to prolong their lifespans after the collection of solid waste from homes & industries Remaining waste are collected & sent to the various waste-to-energy plants for incineration. Incineration reduces the volume of solid waste by about 90% & produces steam that runs turbine-generators to generate electricity. This also helped Singapore to reduce the need for future landfills over the long-term Incinerated ash & other non-incinerated wastes are transported to the Tuas Marine Transfer Station for the barging operation to Semakau Landfills where they are disposed at tipping sites Recyclables collected from the collection of solid waste are processed to prolong their lifespans Examples of recyclables: Plastic materials,paper The processed recyclables can be used to make items which is known for environmental-friendly products. Landfill: These landfills are quite often conventional with deserted and vacant locations around the cities. This method involves burying off the waste and this is the most common practice for the disposal of waste around the Globe. Incineration: This is the dumping off method, which involves combustion of waste materials. This sort of dumping off for waste materials through incineration and temperature is known as “thermal treatment”. This method is utilized to convert waste materials into gas, heat, ash and steam. Incineration is conducted on both individual and industrial scale. This method is used for disposing all sorts of matters. Waste materials, which come in organic nature are treated through biological reprocessing. The waste materials with organic nature are plant, food and paper products. This reprocessing or recycling of this organic matter is put to biological decomposition which later if recycled in form of mulch or compost for landscaping and agricultural purposes. Additionally, the waste gas, which is collected from the process, is used for the production of electricity. The goal behind biological reprocessing is to control and speed up the natural decomposition for organic matter. Waste materials can directly be combusted for the generation of energy as fuel or other method, indirect combustion can also be adopted for energy generation. Thermal treatment for recycling purpose included burning of waste for the generation of energy used for household purpose Biological processing: Energy recovery: United Kingdom Korea The Korean government’s “Extended Producer Responsibility” (EPR) system requires manufacturers and importers to recycle a certain amount of their products.The implementation of EPR in 2003 is estimated to be over US $1.6 billion. EPR By recycling the items subject to the EPR policy instead of land filling or incinerating, CO2 emissions have been reduced annually by an average of 412,000 tons. Moreover, it is estimated that as a result of these efforts, approximately 23,532 tons of greenhouse gas emissions (CO2) from plastic landfill or incineration were prevented. is the selective extraction of disposed materials for a specific next use, such as recycling, composting or energy generation. Resource recovery: Council landfills in the Great Lakes area at Tea Gardens, Bulahdelah and the Waste Management Centre at Tuncurry use resource recovery to operate.This includes the operation of plant and equipment to prepare and maintain the landfill area and the recycling of steel, oil, green waste, concrete rubble, bric-a-brac, batteries and poisons. Australia Landfill, incineration & energy recovery are used in SG while biological processing requires agricultural activities. Hence, it is unsuitable for SG The EPR is indeed effective but it requires large amounts of capital.Hence, unsuitable for SG On the other hand, resource recovery could reduce the amount of waste through recycling the waste into new products Not all sources listed