With over 20 years dedicated to understanding scaling phenomena through research and development, A S Harrison & Co through partnership with AWC, have applied our unique understanding of water chemistry to help resolve complex operational issues, and improve membrane pretreatment processes. With the development of an extensive line of RO antiscalants, RO membrane cleaning chemicals and biocides to control and reverse all scales, AWC® is renowned as one of the most trusted suppliers of membrane chemicals for Reverse Osmosis/Nanofiltration (NF/UF) and Microfiltration/Ultrafiltration (MF/UF) systems.
Membrane filtration plays a key role in water treatment, especially when high purity is required. This filtration process consists of the separation of two water flows, the permeate (purified water) and the concentrate (containing impurity and salts). Mainstream desalination technology is reverse osmosis (RO), while for the removal of different contaminants from water and wastewater, pressure-driven microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF) are used.
Working with such tight tolerances and fine membranes means there are numerous maintenance requirements. These include issues relating to the impurities in the water including scaling, fouling and chemical attack.
A S Harrison & Co is the official and exclusive distributor of American Water Chemicals Inc (AWC) within Australia & New Zealand with staff certified to Reverse Osmosis Specialist Level 2 by ASMS. Together with AWC, we offer a full range of services, including but not limited to:
Product and customer insights
Despite numerous cleanings, the productivity of the Reverse Osmosis plant would not recover from severe membrane fouling. The membrane autopsy revealed that the ferric hydroxide was seeding
silica polymerization and that even while the ferric hydroxide was removed, the silica scaling was continuing to grow.
The plant was experiencing weekly shutdowns for fiber clean up (~ 3 kg bags of matted slurry is cleaned per week). The shut downs were costly as they reduce plant availability for production.
The International Maritime Organisation (IMO) regulation, known as IMO 2020 was the the largest change in regulation relating to marine fuels impacting 75% of the fuel used by the shipping industry.
Keeping drilling costs low using Redi-Guard™ High Performance, an ecologically friendly drilling fluid technology with revolutionary rheological and shale encapsulation properties
AWC A-110 effectively inhibited scale at a dosage of 3.5 ppm and an operating pH of 6.9. This increase in operating pH reduced the district’s annual acid consumption by ~$350K per year based on their current production.
Research indicates that Sea Buckthorn may be able to strengthen the immune system. One in vitro study focused on the possible immunomodulatory properties of Sea Buckthorn.
MCI® -2020 V/O and ChemMaster’s Colorsil were chosen to repair and protect the walls based on their 20 year warranties and the fact that together they could fulfill the other specified repair design requirements.
The East Hokkaido region is known to have the highest volume of potato product in Japan. Unfortunately, a potato farmer in the area was experiencing a high rate of potato scab infection in his agricultural field.
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