Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140 Page 141 Page 142 Page 143 Page 144 Page 145 Page 146 Page 147 Page 14881 In 2015, NEA and PUB jointly undertook a technical feasibility study on the anaerobic co-digestion of food waste and used water sludge. The study was conducted by the Nanyang Technological University and was completed in February 2016. It found that co- digestion of food waste and used water sludge yields more biogas than the digestion of either substrate alone. As a result, a pilot project was designed and planned to assess the viability of co-digestion on a larger scale. In the pilot project, food waste will be collected mainly from the Clementi district and transported to PUB’s Co-digestion of food waste and used water sludge co-digestion demonstration facility located at the Ulu Pandan Water Reclamation Plant. The facility is able to treat up to 40 tonnes of combined food waste and used water sludge, using the baseline operational parameters obtained from the technical feasibility study. The pilot project will kick off by end 2016. If successful, the process could potentially be implemented at NEA’s future Integrated Waste Management Facility and PUB’s Tuas Water Reclamation Plant, which will be co- located at a site in Tuas. 40tonnes The facility is able to treat up to Food waste treatment system at Tiong Bahru Market Food waste treatment system at AMK 628 Market & Food Centre of combined food waste and used water sludge, using the baseline operational parameters obtained from the technical feasibility study 80 CHANGING MINDSETS, CREATING NEW POSSIBILITIES NEA is the agency charged with planning, developing and managing Singapore’s advanced waste management system. Given Singapore’s limited land area and dense population, it is critical that we have in place an efficient system for waste collection and Waste management is a vital component of Singapore’s sustainability strategy. To achieve the goal of Singapore becoming a Zero Waste Nation, NEA kicked off several In 2015 Singapore generated around 800,000 tonnes of food waste with a significant amount coming from hawker centres. In January 2016, NEA and MEWR rolled out a two- year pilot project to study the feasibility of on-site food waste treatment in hawker centres. This is part of NEA’s long-term strategic efforts to reduce food waste and extend the lifespan of Semakau Landfill. Two hawker centres — Tiong Bahru Market and Blk 628 Ang Mo Kio Ave 4 Market & Food Centre — were selected for the pilot project. disposal. For this reason, NEA is committed to providing a highly sophisticated, efficient and sustainable waste management system, to ensure a sustainable future for generations to come. pilot projects to test out new ways of reducing waste. NEA is also rolling out two new waste plants to meet Singapore’s long-term waste management needs. At Tiong Bahru Market, the food waste is ground and mixed with microorganisms before being transported off-site to be converted into liquid bio-fertiliser. The fertiliser is then used for landscaping and agricultural purposes. Meanwhile, the machine at AMK 628 Market & Food Centre is able to convert one tonne of food waste into non-potable water within 24 hours. The water is then reused for self-cleaning of the machine. The pilot project is expected to end in December 2017. Depending on the results, NEA may consider implementing on-site food waste treatment for suitable hawker centres. The future of waste Food waste treatment pilots at two hawker centres NEA ANNUAL REPORT 2015 / 2016 NEA ANNUAL REPORT 2015 / 2016