Nanostone Water’s Ceramic Ultrafiltration Membrane Receives Federal LT2 Certification for NSF/ANSI Standard 419 and Approval from the Texas Commission on Environmental Quality (TCEQ) and Colorado Department of Public Health and Environment’s Water Quality Control Division (CDPHE)
Waltham, MA, March 8, 2018 – Nanostone Water, Inc., the manufacturer of a unique and high surface area segmented ceramic ultrafiltration membrane for municipal and industrial water and wastewater treatment, today announced it has received additional NSF/ANSI certification and state level approvals.
The certification to the NSF/ANSI standard 419 for Cryptosporidium removal and membrane integrity using pressure decay testing for the Nanostone CM-151TM ceramic ultrafiltration (UF) membrane module complies with the US EPA Federal standard. The membrane also meets the NSF/ ANSI 61 and NSF / ANSI 372 standards, which covers leachability and health effects certification for wetted materials in drinking water systems.
The Texas Commission on Environmental Quality (TCEQ) has granted approval to Nanostone Water’s CM-151 for use in public drinking water production projects. As part of this rigorous approval process, Nanostone’s membrane integrity challenge testing protocol for confirming the removal of microbial contaminants, as well as the quality control release value used in our membrane production process were validated. In addition, the Colorado Department of Public Health and Environment’s Water Quality Control Division has determined that the CM-151 module meets or exceeds the Colorado standards for potable water systems.
Nanostone will present a paper at the AWWA/AMTA MTC this year that discusses its first drinking water installation, which is a replacement of PVDF microfiltration membranes in a backwash recovery system.The backwash recovery system was installed to improve the water recovery to over 96%, with the permeate from the primary and secondary MF skids blended and sent to the distribution system after appropriate disinfection.The PVDF membranes faced substantial influent turbidity and were fouled rapidly and required fiber pinning to operate in compliance with the EPA surface water regulations. “We have taken ceramic UF to the next level, creating a solution for municipalities’ drinking water needs, with no broken fibers and unmatchable reliability,” declared Bill Musiak of Nanostone, he continues, “the CM-151 form factor allows us to retrofit polymeric systems with minimal mechanical changes.” The Nanostone replacement modules, went operational in June 2017 and have operated compliantly, meeting or exceeding all performance parameters.Please attend our paper by Winnie Shih (WED07-01) and visit our booth (#600) for a copy of the case study.
About Nanostone Water
The CM-151 ceramic membrane from Nanostone Water was launched in February 2017, and is a unique high surface area pressurized ultrafiltration monolith style membrane module with improved permeate flow efficiency and lower energy consumption versus currently available ceramic membranes. The patented design uses multiple rows of channels in flat sheet segments and incorporates ten segments inside a pressure vessel with a form factor that matches polymeric hollow fiber membranes. The form factor enables replacement of existing PUF hollow fiber modules with minimal system modifications, generally leading to increased production and eliminates fiber breakage. Together with the improved energy efficiency, the high surface area and unique segmented construction drastically reduces cost of ownership, making systems using Nanostone’s ceramic UF module competitive with polymeric UF/MF systems. Headquartered in Waltham, Massachusetts, the company has ceramic manufacturing operations in Halberstadt, Germany. (www.nanostone.com)
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