The Rotoshear® unit from Parkson is an internally-fed rotary wedgewire cylindrical screen for municipal wastewater pretreatment and primary treatment that operates with minimal attendance. There are 12 models with custom features specific to various applications. Opening sizes range from 0.010" to 0.100" (0.25 to 2.5 mm) and hydraulic capacities from 450 to over 13,000 GPM (102 to 2955 m3/h). The material standard is 304 stainless steel, but 316 and L grades are available as well. Heavy-duty models are available for heavy solids loadings.
Parkson
www.parkson.com
Ultrafiltration membrane
The Kruger XTREAM™ ultrafiltration membrane system incorporates a new membrane element by Dow Water and Process Solutions, the IntegraFlo 102-1100 module (DW102-1100), with 1,103 ft2 (102.5 m2) per element. The hollow fibers are constructed of the same chemically-resistant PVDF polymer used in previous modules and feature a packing density decrease at the potting ends due to improved module design. The fibers have a 0.03 μm pore size which facilitates removal of Cryptosporidium, bacteria, viruses, and particulates: up to 6.49 log removal of bacteria and up to a 2.3 log removal of viruses. The module has NSF/ANSI 61 and PDWE certifications, with plans to gain CADPH approval.
Kruger
www.krugerusa.com
Butterfly valve