Leading the national tourism average with double-digit growth in occupancy rates, the summer of 2014 was a particularly good one for hotels in the San Francisco Bay Area. The increase in demand for visitor accommodations came in the midst of an unprecedented drought in California — the worst in decades, with three drier-than-average years so far — and approval of the first statewide rules to punish water wasters. In a unanimous vote earlier this year, the California State Water Resources Control Board approved new restrictions on outdoor water use.
California hotel saves water with efficient irrigation system
This article will review the benefits and challenges of implementing water reuse strategies, focused on building heating, ventilation and air conditioning (HVAC) and plumbing systems at the new 217,000-sq-ft Milton Union K-12 School. Public policy changes (codes, etc.) needed to be addressed during a project to more readily integrate these strategies into the building design. A summary of the water savings associated with incorporating these strategies is described herein.
K-12 school uses rainwater for toilet flushing & irrigation
Commercial applications for harvested rainwater are no longer a rarity in the U.S., though few uses of this heaven-sent water match the AdvancED facility in Alpharetta, Ga., for sustainability and energy efficiency. The U.S. Green Building Council thought so, too — the new global headquarters facility earned LEED Gold status.
Building leverages rainwater for HVAC energy savings
With the global population estimated to grow from 7 billion in 2011 to more than 9.5 billion by 2050, profound stress has been placed on the world’s limited water supply, not only by its burgeoning population, but also by other factors, such as rapid urbanization, industrialization, pollution and climate change.1 As water scarcity and “water stress” persist, the water treatment industry has been tasked with developing innovative solutions to produce clean, potable water.
Demand for Desalination
Popular vacation spot uses RO desalination to produce drinking water
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Metal-free flowmeters are well suited for ultrapure water, deionized water and highly corrosive applications. The float is guided by polysulfone ridges that are molded into the meter body. Floats are constructed of PTFE, allowing no metal contaminants into the fluid path. Adapters are constructed of polysulfone, PVC or PVDF, depending on model; and O-ring seals are FKM (EP is optional). Optional socket-fusion 63-mm fittings also are offered.
The Neo Pure High Efficiency Melt Blown Filter Series consists of 100% polypropylene depth filters. These cartridges effectively and economically reduce sediment, dirt and particulates for commercial and industrial applications, and are offered in a variety of lengths and end cap configurations. Each of the filters is made in the U.S., utilizes FDA-compliant materials and is certified by WQA to NSF/ANSI standards 61 and 42.
New Axeon L1-Series light commercial RO systems are ideal for a wide range of applications, including food and beverage preparation, aquariums, hydroponics, misting and more. The 200- to 300-gpd systems offer quality and reliability. They feature a new single-pump design, extra-low-energy membranes with auto flush, extensive pre- and post-filtration, and a compact wall-mount space-saving design that is simple to install, energy efficient and competitively priced.
Filmtec Seamaxx RO elements offer low energy consumption and an optimized module design that helps maximize the productivity of a desalination system with low differential pressure, low cleaning frequency and high cleaning efficiency. Producing up to 99.7% water purity, up to 10% energy savings and less fouling at high operating flux, they are ideal for applications that treat medium to high TDS, brine and high-salinity brackish water.