[D] TO DEVELOP A PRODUCTIVE, CLEANER AND COST-EFFECTIVE REFUSE COLLECTION SYSTEM

Older HDB blocks are fitted with Individual Refuse Chutes (IRCs) and have a refuse bin at the bottom of each chute to contain the refuse. The process of waste removal currently requires the use of two town council conservancy crew members to perform two manual transfers of the filled refuse bins between the IRCs and the bin centre as follows:

• IRCs: The filled bins are manually removed from IRCs and transferred onto small Battery-Operated Carts (BOC) before they are transported to the bin centres. The bin’s size is about 0.3 metre cubic, and can sometimes weigh more than 100kg when full. This is very heavy for 2 workers.
• Bin centre: The filled bins on the Battery-Operated Carts (BOC) are carried down and pushed to the refuse compactors at the bin centre.

Very often, the activities involved in transferring waste from IRCs to refuse compactors results in refuse/sullage spillage as well as pest and smell nuisance which warrants further mitigation actions.

The proposed solution should meet the following requirements:

1. Simple and easy to operate
2. Easy to be deployed in existing estates with little or no major modification
3. Helps to reduce or eliminate spillage, vector problems and odour from waste collection.
4. Installation and operations to have minimal inconvenience to residents
5. Improve productivity through the use of mechanization
6. Cost effectiveness in terms of life-cycle cost analysis
7. The proposed solution must have minimal noise generation

A cost-effective, cleaner and less labour-intensive refuse collection system for older HDB blocks.

1. Completion of site evaluation, equipment concept design & detailed drawings 3 months from start of project.
2. Working prototype ready for evaluation 10 months after start of project
3. Trial of working prototype on site for about 4 – 6 months.
4. Provide reports and findings on data collated during trial phase

Please refer to the attachment for full details on the problem statement.

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