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 40Page 20 | Rotorua Sustainable Living Strategy Toitū te oranga o Rotorua The Tiaki Early Learning Centre vision is to ‘Walk Softly on the Earth’. Head teacher Katherine Maud, and the tuakana children of the Tiaki Early Learning Centre visit the wetlands on the eastern shores of Lake Rotorua each week to plant and play. The centre received silver recognition under the Enviroschools Programme in 2015. Rotorua’s wastewater (sewage) is treated daily at a central Wastewater Treatment Plant on Te Ngae Rd, that uses a 5-stage Bardenpho process for 2/3 of the flow - the first full biological nitrogen and phosphorus process used for municipal wastewater in New Zealand and a membrane bioreactor (MBR) for 1/3 of the flow. An upgrade is proposed that will include additional phosphorus removal, additional membrane filtration so the entire flow will be filtered, and UV disinfection as an additional barrier to pathogens. The sludge produced (biosolids) is currently transported to Kawerau, mixed with waste pulp mill fibre, vermi-composted, and cultivated into land used for growing maize as a fodder crop. A tailored wet-oxidation process is being considered as an alternative for the sludge, that would see the recovery of nitrogen and phosphorus, and the carbon returned to the treatment plant.