Bioaugmentation Improves Water Clarity in Freshwater Pond

Water Clarity

Bioaugmentation Improves Water Clarity in Freshwater Pond

Freshwater Pond 1.5 Acres 6-8 Feet Depth

Algal and aquatic weed growth is a persistent issue impairing water clarity in freshwater ponds. Warm water temperatures and nutrient loads promote algal and plant growth in these systems, especially when organic matter content is high.

Bioaugmentation can be used to reduce organic substrate at the sediment water interface to reduce the magnitude of nutrient loads from solids accumulation. The following case study describes the application of ProBiotic Scrubber® I (PBI) to reduce solids and nutrients in a freshwater pond.

Figure 1. Open water pond at case study site without (left) and with (right) BioLynceus® PBI treatment with added organic acids. Water clarity was improved in the pond during bioaugmentation.

A golf course and recreation center in Montana was having trouble maintaining water clarity in their one and-a-half-acre freshwater pond during spring through
fall. The flows to the water body were introducing higher nutrient loadings.

Half the water inputs to the pond were effluent from the town’s wastewater treatment plant; the other half was diverted from the Yellowstone River. The water from the Yellowstone River was impaired by agricultural runoff that increased bioavailable nitrogen and phosphorus from fertilizers.

In response to the above issue and the shallowness of the pond, algal and duckweed growth were excessive in the water body. Subsequently, aeration via their water fountain and irrigation intakes were mechanically inhibited by the suspended biomass.

The management at the golf course needed to find a viable solution to shift algal and duckweed abundance in the pond. BioLynceus® bioaugmentation was implemented in the freshwater pond to reduce the organic solids accumulation at the sediment water interface.

PBI was used to inoculate the system in April and additional doses were implemented twice weekly. The treatment augmented the system with a highly diversified consortium of bacteria selected for enhanced solids decomposition and nutrient removal.

Furthermore, a small amount of organic acid was implemented along with the PBI to promote heterotrophic bacterial metabolism. Within the first few months of treatment, the water clarity in the outer edges of the pond improved.

Over time, solids reduction was observed from the outside edge towards the center of the pond. The added bacteria first digested the organic matter around the banks of the pond which helped minimize sludge and related nutrients promoting duckweed and algae growth.

The bioaugmentation was working, but new management decided to halt treatment midway through the second treatment season. The pond water clarity worsened without the treatment.

The following spring, PBI was augmented in the system to gain the same results as the prior application. For a second time, water clarity was improved by bioaugmentation.

Over the treatment period, lasting seven months (April to November), the algae and
duckweed biomass in the pond decreased. Over time, the clarity of the pond improved throughout the entire water column.

BioLynceus® treatment helped digest organic material and improve water clarity in the freshwater pond.

BioLynceus® ProBiotic Scrubber® I promotes water clarity in freshwater ponds.

More Articles in This Category

Effluent Water and Lake Cleanup

The definition of effluent is “something that flows out.” We can then say that any flowing water is effluent, whether it comes from a wastewater treatment plant or flows from land, taking with it fertilizer nutrients, herbicides, insecticides, or any other chemical,...

Pond Clarity Testimonial

I used ProBiotic Scrubber® I (PBI) in several of Caras Nursery's clients landscaping ponds to control algae blooms. I was impressed by how efficiently the product eliminated and controlled the algae blooms and odors.Furthermore, there was an increase in the clarity of...

Freshwater Remediation Testimonial

Beginning in 1999, Big Elk Meadows contracted with BioLynceus® for the purpose of improving the water quality of our lakes, which are the source of our drinking water. During 1999, we began treating our lakes which were in an unhealthy state with BioLynceus® ProBiotic...

Freshwater Lake Testimonial

We put ProBiotic Scrubber® I in the lakes on hole number six. The smell increased initially, then dissipated. Also, there does appear to be a lot more microbial activity based on the amount of bubbles generated when we turn over some of the underlying soil. We would...

Water Clarity Bioaugmentation in a Freshwater Pond

Freshwater Pond 2 Acres The water clarity of freshwater ponds can be impaired by organic material which accumulates in response to high nutrient loadings. Eutrophic surface water conditions, enriched with high nutrient concentrations, can promote excessive algal...

Improving Water Clarity in Freshwater Lakes

Freshwater Lake 4-6 Acres Maintaining good water clarity is essential when managing drinking and recreational water resources. Freshwater pond systems have constant organic inputs from vegetation, biosolids, and runoff. In the spring and fall, changing water...

Water Clarity Treatment in Freshwater Lake

Freshwater Pond 3 Acres 20 Feet Depth Achieving good water clarity in freshwater ponds can be challenging, especially during spring and summer months. Algal growth is a common issue that increases suspended solids in open water bodies. Excess algal biomass can be...