水務署2020/21年年報 WSD Annual Report 2020/21

Total Water Management 全 面 水 資 源 管 理 中水重用及雨水回收 Grey Water Recycling and Rainwater Harvesting 從住宅和工業收集的中水和回收的雨水， Grey water collected from households and industries as well as 經處理後可重新用於非飲用用途，從而 rainwater harvested can be treated and reused for non-potable 減少食水用量。我們於二零二零年九月開 uses thereby reducing fresh water consumption. From September 始，在安達臣道石礦場用地發展項目中， 2020, we began the construction of a grey water recycling system 興建一套每日可處理最高達 3 300 立方米 with a maximum treatment capacity of 3 300 m 3 per day at the 的中水重用系統。系統將於二零二三年 Anderson Road Quarry Site Development. The supply of grey water 投入服務，以配合區內人口發展。 will commence in 2023 to tie in with the population intake of the development. 中央中水重用系統包括中水處理廠、抽水 The centralised grey water recycling system consists of a grey water 系統、貯存經處理中水的配水庫，及用於 treatment plant, a pumping system, a service reservoir for storing 收集中水和向該發展區輸送經處理的中水 treated grey water, and water mains for grey water collection and 作沖廁及其他非飲用用途的管道。 distribution of the treated grey water within the development for flushing and other non-potable uses. 政府牽頭推動中水重用及雨水回收系統， The Government is leading by example in adopting grey water 更頒布內部指引，在新的政府工程項目 recycling and rainwater harvesting systems with the promulgation 採用這些循環再用水設施。在此倡議下， of internal guidelines for installing these water recycling facilities in 截至二零二一年三月，約有 1 1 5 個政府 new government projects. Following this initiative, new buildings of 工程項目中的新建大樓已配備中水重用及 / approximately 115 government projects have been equipped with 或雨水回收系統。水務署天水圍大樓是 grey water recycling and/or rainwater harvesting systems as at March 支持相關倡議的政府工程項目之一。 2021. The WSD Tin Shui Wai Building is one of these government projects supporting the relevant initiative. 為推動私營企業採用中水重用和雨水 回收，我們在香港綠色建築議會的綠建 環評新建建築 2 . 0 版提出新規定，藉以 鼓勵發展商在新發展項目中採用中水重用 和雨水回收系統。截至二零二一年三月， 約 60 個獲得綠建環評新建建築 1.2 或 2.0 版 認證的項目已採用循環再用水設施。 To advance adoption of grey water recycling and rainwater harvesting in the private sector, we have proposed new provisions in the Hong Kong Green Building Council’s Building Environmental Assessment Method (BEAM) Plus New Buildings Assessment Tool Version 2.0 to incentivise project owners to adopt grey water recycling and rainwater harvesting systems in their new development projects. As at March 2021, about 60 certified projects under BEAM Plus New Buildings Assessment Tool v1.2 and v2.0 have initiated efforts in adopting water recycling facilities. 的新建大樓已配備中水重用及/或雨水回收 系統。 new buildings have been equipped with grey water recycling and/or rainwater harvesting systems. 個政府工程項目 government projects ’ 115 截至二零二一年三月，約 As at March 2021, about WSD Annual Report 2020/21 35