The RMA QA 30 aerators have been installed in Imhoff tanks. Although the units are not designed for primary sewage, and are better suited to further along the process at tertiary ponds – provided the protection screens around the pump are cleaned weekly these do operate very well in this situation.
Every summer the council experiences an algae problem in the ponds downstream of the Imhoff tank. It is a frustrating experience for the Council regarding the algae alone, and prevents the water being used for other purposes.
There are two option in dealing with this situation:
Either treat in the pond/s themselves
Or go further upstream and treat the water in the Imhoff tank.
Treating the water in the tank could mean the ponds will still need further treatment – this will depend on the nutrient loading in the tank that is released into the ponds. In this situation the decision was to move upstream to the tank. The sewage water in this tank will be treated with high numbers of macro, fine, micro and nano-bubbles. The result is the microbial activity in the tank will be very high, the sludge and nutrients are expected to be reduced, and the water that is released will be of a higher quality which may prevent the algae issue in the ponds.
An upgrade of the Isisford town water drinking system. The old system was a standard sand filter using sand media where both the filter vessel and sand media needed replacement. The vessel had reached it’s end of life and the media had also completed it’s service. Our partner company Solari Water recommended that a different system be used, incorporating the OV AFM filters with filtration to 0.45 microns.
This system is seen at the right, with twin process lines in place for 100% redundancy at all levels of the filtration system. AFM (Activated Filter Media) was chosen as the media of choice for these reasons:
Cryptosporidium and other bacteria control solids are removed down to sub-micron levels
30-80% better performance than sand AFM & should never need to be replaced
Life cycle benefits
Both water and energy (generally capital return is less than 24 months)
100% environmentally sustainable
A ZPM is a Zeta Potential Mixer unit is placed in line, and is one of the cheapest filtration units available anywhere. It increases oxidation potential by up to 100mv, thereby initiating disinfection without chemicals. It includes an entry point for flocculation, coagulation and chlorination chemicals, and improves the result by at least 30% (less chemical needed). It also creates ultra fine (nano-bubbles) for improved water quality.
A premier golf course in Southeast Asia required an upgrade to its existing water filtration system to enhance water quality and effectively remove suspended contaminants from its irrigation supply. The source water, drawn from a dam, was experiencing several issues including low dissolved oxygen (DO), thermal stratification, and elevated iron levels. These conditions contributed to unpleasant odors and poor water quality across the irrigation system.
Water is transferred from the dam to Tank 1 via an HDPE pipeline, and then to Tank 2 through an interconnecting PVC transfer line. (Refer to attached system diagram.)
The primary objectives of the system upgrade were:
To address these challenges, the golf course implemented an integrated water treatment solution comprising:
This combination has delivered a highly effective and low-maintenance solution, significantly improving water quality and system efficiency for the course’s irrigation operations.
Site Visit Summary & Installation Overview
These photos were taken during our recent visit to a golf course in Korea, where a pond aeration and water conditioning system was installed to improve water quality and aesthetics.
✅ System Design & Installation Highlights:
⚠ Note: This was a contractor-led decision, not specified by IGS Water, but may offer flexibility in high-demand situations.
101/01 Bang Kruai – Sai Noi Rd, Bang Rak Phatthana,, Bangbuathong, Nonthaburi 11110 Thailand
Suite 86 #24 – 10, Shaw Centre, Singapore 228208
