Location: Seoul, South Korea
Application: Golf Course Pond
Details: 1.09 acres in size, 6’ average depth, long and narrow oval
This golf course pond had excessive nutrient load from years of fertilizing the course. Extensive algae growth followed which was unsightly and led to poor water quality & foul odors.
Robust-Aire was installed in the pond to improve water flow and oxygen levels, along with maintaining a more uniform distribution of oxygen and temperatures throughout the pond. Macro-Zyme™ was also used as a regular pond treatment to more rapidly remove organics and nutrients from the water.
Macro-Zyme™ Treatment Dates:
- September 3, 2014
- Octonber 2, 2014
- May 13, 2015
- June 4, 2015
- June 24, 2015
- July 14, 2015
Water Sample Results for N & P
- September 3, 2014 – prior to first Macro-Zyme™ Treatment
- N – 4.658 mg/l
- P – 0.279 mg/l
- November 7, 2014 – after 2 treatments of Macro-Zyme™
- N – 1.286 mg/l
- P – 0.138 mg/l
- June 24, 2015 – after 6th treatment of Macro-Zyme™
- N – undetectable
- P – 0.067 mg/l
With Macro-Zyme™ and Robust-Aire, the pond water quality, clarity, and smell improved. Nitrogen levels become undetectable and Phosphorus levels dropped over 400% to 0.067 mg/l. This drop in N & P directly lead to a dramatic decrease in algae growth, thus improving the pond appearance.
Phosphorus, specifically, is the limiting nutrient for algae growth. 1 lbs. of Phosphorus in a pond can support 500 lbs. of algae growth. With a ½ acre pond and an average depth of 6’, prior to any aeration or Macro-Zyme™ treatments, this pond was capable of supporting 755 lbs. of algae growth with its 1.51 lbs. of Phosphorus (pond volume x 0.279 mg/l P).
After 6 treatments of Macro-Zyme™, coupled with aeration, this pond could now support only 182 lbs. of algae with its .364 lbs. of Phosphorus (pond volume x 0.067 mg/l).