Click here to enlarge imageStandard Alloys
Port Arthur, Texas, USA
Monitor measures ORP potential
The 720 Series II pH and ORP monitor/controllers measure pH or oxidation-reduction potential/redox in reverse osmosis, process control, seawater desalination and waste treatment. The equipment features "isolated" circuitry, built-in electronic calibration, internal alarm set, 10-amp output relay, push-to-test button for set point checks, bright green and red LEDs to indicate above or below set point readings. An IP64/NEMA 3 splash and corrosion-proof rated enclosure in a compact size - 152 x 122 mm) make the 720 Series II models suitable for panel, bench or surface mounting.
Myron L Company
Carlsbad, California, USA
RO element design improves cleaning
The FilmTec SW30HR-320 High Rejection Seawater Reverse Osmosis (RO) Element purifies seawater sources such as open intakes, where there is high potential for membrane fouling. According to FilmTec, the element is rated at 99.6% salt rejection and delivers high quality potable water.
Dow incorporated features that improve membrane cleaning of scale, organic compounds and biofilm. These features include a thick feed spacer (34 mil) and a greater number of shorter membrane leaves to reduce the overall effect of fouling. Thicker feed spacers reduce pressure drop and cleaning frequency. Dow developed this element to replace the FilmTec SW30HR-8040 element.
The Dow Chemical Company
Minneapolis, Minnesota, USA
Biological process treats poultry wastewater
The Kaldnes Moving Bed Biofilm Reactor (MBBR) handles wastewater with high BOD concentration and large load variations produced in the poultry processing industry while lowering costs associated with the operation of the wastewater treatment plant. The process uses existing equipment located on-site for retrofitting with the MBBR process components.
The Kaldnes process package design consists of one or two MBBRs, depending on the treatment required and placed after the equalisation tank. The MBBR process consists of thousands of tiny, polyethylene biofilm elements to provide a home for a vast, highly active bacteria culture. These buoyant elements are kept in constant motion throughout the entire volume of the reactor, resulting in uniform, highly effective treatment. Effluent from the MBBR is either clarified or it flows directly into an existing biological treatment system on-site.