Water, Sewage & Effluent Mar Vol 30 No 2 | Page 32

Desalination plant to meet 5% of Hong Kong’s water demand “Throughout the world new solutions are emerging that derive synergies across water, energy and waste resources. Energy is a high cost for water utilities and innovatively generated power can yield both financial and environmental benefits for the project.” 30 The eagerly awaited 136 000m3/day Tseung Kwan O desalination plant has taken a step forward after the Hong Kong Government Water Supplies Department appointed Black & Veatch as the owner’s engineer. The engineering consultancy will design and provide construction supervision across the first phase of the desalination plant, designed to meet 5% of Hong Kong’s water demand. A second phase, producing a further 136 000m3/day, is also planned. Black & Veatch recently completed the plant’s feasibility study to identify opportunities to harness green energy that could reduce electricity costs. More than 70% of Hong Kong’s comes from the Dongjiang river basin in Southern China, with the rest coming from local catchments. Although Hong Kong has a relatively high domestic consumption per capita compared to other developed cities, the cost to end users is low, providing little incentive to reduce use. Black & Veatch completed Hong Kong’s first desalination plant, the Lok On Paid Desalter, in 1976, which was later decommissioned in 1981 as a result of to high operating costs and alternative water supply options. Alan Man, vice-president and MD director of Black & Veatch’s water business in Greater China, said: “Throughout the world new solutions are emerging that derive synergies across water, energy and waste resources. Energy is a high cost for water utilities and innovatively generated power can yield both financial and environmental benefits for the project.” Water Sewage & Effluent March/April 2016