Americas

Brazil reaches 'Galaxy' ambitions on wastewater reuse

The Aquapolo wastewater treatment plant in Sau Paulo, Brazil has completed installation of Amiad Filtration Systems' Galaxy 6" SpinKlin Disc Filters. Built by Foz do Brazil and Sabesp, the facility is dedicated to the production of reused water for industrial processes, using wastewater as raw material.

The filters will be used to protect the plant's ultrafiltration membranes and the project was sold through Amiad's Brazil distributor, Aquasys.

Acting a pre-treatment, water first passes through the filters, which have a flow rate of 2,400 cubic meters per hour and are designed to retain solids with a diameter larger than 400 microns. Remaining water then passes through a biological treatment and 63 ultrafiltration membrane modules in order to reach the required standard.

Jacky Vinocur from Amiad Filtration Systems, said: "The Aquapolo plant will help reduce the current reliance on potable water for industrial use, and will ultimately result in preserving more clean water for the citizens of Sao Paulo."

UV Disinfection systems deployed across Indiana

The cities of Indianapolis and Fort Wayne in Indiana have selected Calgon Carbon Corporation to supply Sentinel® Ultraviolet (UV) Disinfection Systems at drinking water production plants serving their communities. As part of the contracts, Indianapolis will install 12 Sentinel 12" Systems at its Fall Creek plant to increase protection against Cryptosporidium, Giardia, and other surface water pathogens. When installed later this year, the Sentinel Systems will treat up to 44 million gallons of drinking water per day.

Separately, Fort Wayne will install three Chevron 48" UV reactors at its Three Rivers water filtration plant as part of a retrofitting project. The new UV reactors will be capable of treating up to 72 million gallons of water per day.

Both Sentinel Systems have undergone third-party validation in accordance with the U.S. Environmental Protection Agency's UV Disinfection Guidance Manual.

Both Systems feature UV intensity sensors to ensure accurate delivery of UV dose, an automatic quartz sleeve cleaning system, and a fully automated control system.

BWWB completes $133.6 million bond issue

The Water Works Board of the City of Birmingham has completed a $133.6 million bond issue that will finance capital improvement projects through 2013. The transaction is set to close at a net interest cost of 4.84%, more than 3/4 of a percent lower than the expected rate of 5.75%. The bonds were priced June 6 and sold by the underwriting team June 7.

Nearly $70 million has been budgeted for capital projects in 2011. The BWWB completes a bond issue every two years, usually securing between $125-130 million. About $5 million is used for capital improvement projects every month, BWWB officials said.

One of the most immediate projects in-line to benefit from the bond issue is the Carson 6B pipeline project, which, when completed, will provide an additional 16 million-gallons of water per day to the Southern portion of the system. As well, a $329 million project to access an alternate water source is underway.

This project will increase delivery capacity by more than 41 million gallons of water per day to meet growing demand. More than 30 other projects will benefit from the funding in the next two years.

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