Producing Chemicals Onsite and On Demand In response, the Water Supplies Department focused not only on expansion and water supply resilience, but on sustainably generating ozone and chlorine gas on site at the Tai Po facility. Both elements efficiently remove pathogens to make water safe for humans. On-site creation eliminates the need to transport chlorine, thus protecting public safety. The department generates ozone gas using vacuum pressure swing adsorption, and chlorine gas is created by electrolyzing brine from food-grade salt. The use of ozone, in addition to chlorine, allows the Tai Po facility to decrease chlorine requirements by about 30 percent. Plus, the chlorine is produced as it’s needed, which eliminates the need for potentially hazardous on-site storage. The expansion of the treatment works and integration of on-site disinfectants is a pioneering effort that sets an example of environmental sustainability and resilience for 11 other major water treatment facilities in Hong Kong. In addition, the plant’s increased production supplies more fresh water to residents of Tai Po, Kowloon and the Central and Western districts of Hong Kong. The Tai Po WTW is also now one of the largest municipal water treatment installations in the world with on-site generation of both ozone and chlorine gas. × Saving Water and the Environment, Safely “The project represents the Hong Kong Water Supplies Department’s vision to improve the reliability and flexibility of water supply and distribution networks,” said Luk Wai-Hung, Assistant Director of New Works for the department. “Tai Po Water Treatment Works is at the forefront of environmental innovation and stewardship.” Black & Veatch, which has worked in Hong Kong since the 1930s, designed the facility and provided construction management supervision for the project. To maintain future safe operation of four on-site chlorine generation units, the company also helped create a Building Information Modelling (BIM), augmented-reality mobile application that trains operators in safety procedures. Black & Veatch also designed Stage 1 of the award-winning plant that came online in early 2005. The plant also features a zero-water discharge design, which means nearly every drop of water, including what’s used for operations, is treated for reuse. “We cherish our water resources and have achieved a water-conversion efficiency of 99.7 percent,” said Thomas Chan, Chief Engineer for the department. “We’re also using gravity discharge and on-site solar panels to decrease our demand for electricity from the grid.” Project Gallery Contact us to learn more about what we can do for you. 0 Related Insights When Water is the Product, How Do We Afford Sustainability? Regardless of industry or product, the effective use of water carries huge weight for plant operators and other decision-makers who must pit emerging social calls for sustainability against the money on hand to make it happen. Global Renewables: From Utah to the United Nations, Renewables Power Up From C-suites and state capitals to international governments and the United Nations, leaders of the world’s most influential economies are codifying the role of renewables in an increasingly sustainable power generation mix. On the government side, leaders in China, Europe and elsewhere are on a growing list of American states in setting ambitious renewable portfolio standards (RPS) targets. Renewables Surge, Changing Policies Expected to Drive Investment in Transmission Surging growth in renewables and efforts to increase resilience will drive millions of dollars in new transmission investment over the next five years, according to Black & Veatch’s 2019 Strategic Directions: Electric Report survey. Survey results found that 37 percent of respondents see renewables as the top driver in new investment, followed by resilience and reliability (28 percent). Hydropower Strategic Alliances: How Producers Can Benefit Strategic alliances with hydropower producers are a natural fit for asset management programs. They can be set up broadly to help producers maintain organizational stability, reliability, and financial performance. Food and Beverage Leaders Turn to Renewable Energy, Circular Solutions for Cost-Savings From food safety and regulatory compliance to packaging and supply chain logistics, the food and beverage industry is constantly hunting for solutions that balance profitability and sustainability. Related Project Stories DIY Approach Makes Water Treatment Safer for Hong Kong Citizens The Hong Kong Water Supplies Department is bringing more clean drinking water to its citizens in much safer ways. Ultimately, the department set out to double the Tai Po Water Treatment Works’ production. Achieving that goal was an amazing feat in itself, but the department saw beyond the infrastructure to boldly address the equally complex challenge of safe and sustainable treatment. Lifting the Burdens of Capital Improvement Programs For more than 20 years, Black & Veatch worked with the Winston-Salem/Forsyth County Utility Commission to upgrade its wastewater treatment system on a project-by-project basis. There were many short-term wins, but resilience dated master plan made the long-term a bit less clear. The real win, and biggest cost savings, required a different approach. Black & Veatch, Coalition Donate Electric Resiliency to Hurricane-Affected Puerto Rico School, Saving it in the Process A coalition led by Black & Veatch donated tens of thousands of dollars in technology along with the manpower to provide a new, solar-driven power source for the SU Manuel Ortiz in Yabucoa, ground zero of Hurricane Maria. Shell Microgrid Doubles as Research Lab for Testing New Energy Solutions Black & Veatch designed, procured and constructed a microgrid for Shell, which is using it to generate power while it also serves as a working test lab to explore advancements in renewable energy. Client Removes Transmission Lines with Minimal Disruption to Auto, Train Traffic Below The United Illuminating Company needed to replace existing transmission line conductors located on 100-year-old lattice towers built on a historic railroad bridge, hiring Black & Veatch as the EPC contractor.