Where Did the Dissolved Oxygen Go in my Wastewater Pond?

A wastewater pond requires sufficient Dissolved Oxygen (DO) to satisfy Biological Oxygen Demand (BOD) and Nitrogenous Biochemical Oxygen Demand (NBOD). Without DO, a pond can experience odours, high e
Read more

Advantages of Industrial Lagoons for Wastewater Treatment

Lagoons are usually thought of in the context of municipal wastewater treatment, however, they are also popular for many industries, such as fruit and vegetable, meat, dairy processing, and wineries.
Read more

Lagoon Microbiology: Heterotrophs vs. Autotrophs

Biological treatment is the most efficient way of removing soluble compounds from wastewater. Until recent times, it was functionally the only way. Biological treatment is far more efficient and avail
Read more

The Hidden Costs of Replacing a Lagoon with a Mechanical Plant

When confronted with new discharge consent requirements, many municipalities feel their only option is to decommission their otherwise adequate wastewater lagoon treatment system and replace it with a
Read more

Getting your pond ready for Summer

There’s nothing quite like some water in our gardens to convey a sense of peace and tranquility – a water feature burbling away, a sparkling, clear pond with a few water lilies in it and some goldfish
Read more

Control algae in commercial lakes

How to control algae in commercial lakes and fisheries

When you start to think about it, large expanses of water can be found in many different places:
Read more

Reflection pool using Dyofix Pond Black

Mr Rhodri Jenkins of Swansea wanted a reflection pool so he recently used Dyofix Pond Black to create a beautiful reflective surface.

Mr Jenkins was very kind and sent over pictures of his new water
Read more

Before and after using Dyofix Pond Blue

What a pleasure it was to watch the video, showing the before and after using Dyofix Pond Blue in a fishing lake. As you can see, the fishing lake shores especially were negatively impacted by algae a
Read more

Meat Processing Wastewater Lagoon Aeration

A meat processing wastewater lagoon can have a bad reputation because of the potential for sludge build-up and odour. However, a properly functioning meat processing wastewater lagoon, one with suffic
Read more

Cyanobacteria now proven to have caused tragic death of over 300 elephants

The mysterious discovery from the air of over 300 elephant carcasses, back in July of this year, sent alarm bells ringing to conservationists within Africa and much further afield.

Whilst over 300 de
Read more

Using Wastewater Lagoon pH as a Diagnostic Tool

Wastewater lagoon pH is a common testing parameter that is easily taken for granted. Dig a little deeper, however, and pH can give you valuable clues about what’s going on in your lagoon and help.....
Read more

Troubleshooting Low Lagoon Dissolved Oxygen

Lagoon dissolved oxygen, or DO, is the lifeblood of the wastewater lagoon system. The bacteria and other microbes that consume biological oxygen demand (BOD) need 1.5–2 lbs. of dissolved oxygen per...
Read more

Lagoon Solids: Using the TSS to BOD5 Ratio to Diagnose Treatment Problems

Biological Oxygen Demand (BOD) and Total Suspended Solids, or TSS, are standard testing parameters for wastewater lagoons. The ratio between the two numbers can provide valuable insight into........
Read more

Lagoon Sludge Reduction In Situ: Methods of Removing Sludge in Place

One of the benefits of lagoons for wastewater treatment is their built-in sludge storage, which reduces the need for sludge handling. However, every lagoon will eventually require dredging to........
Read more

Removing sludge from a NZ municipal wastewater oxidation pond

Here’s how we helped to remove an excess of 1,500m3 of wet sludge volume from an NZ municipal wastewater oxidation pond, within six months, using Parklink’s Advanced Microbial Digestion (AMD) system.

Read more

Interesting facts about Alum and Phoslock

Both Alum and Phoslock® are used as a P-inactivation agent in eutrophic lakes and reservoirs throughout the world. Alum has been used in North America and Europe for more than three decades. In contra
Read more

What’s the best way to control pond odour?

Odours can have some very negative consequences as the stench coming from your pond can impact the well-being of those around you, and this is also the most commonly noted reason a smelly pond is repo
Read more

What are the benefits of pond dye?

Your pond mimics a natural waterbody and so is highly influenced by the surrounding environment. This can mean changes in water quality and colour occur over time which can result in common problems i
Read more

Understanding pH in a lake or pond

Every water body, whether it’s a dam, river or a lake, will have a unique water chemistry that is influenced by environmental and animal interactions.

pH is the measure/scale of acidity and alkalinit
Read more

Enhanced microbial digestion

Enhanced Microbial Digestion is the process of adding specific cultures of microorganisms to WSP in quantities sufficient to increase the average rate of hydrolysis, resulting in reduction of accumula
Read more

Wastewater pond sludge measuring techniques

Wet sludge volume, sludge solids concentrations and inert fraction of dry solids are the main considerations when quantifying or surveying the accumulated sludge in a WSP. All survey levels should be
Read more

Why is your waterbody murky?

If the water is murky and a brown or tan-ish colour, sediment particles are likely suspended within the water column. This often happens after a large rain event, so shoreline areas should be inspecte
Read more

Why is my pond green?

Without proper water quality testing and analysis, it can be difficult to determine the exact causes behind a green pond. The green you’re seeing may be algae. While algae look similar to some aquatic
Read more

How to solve algae problems?

In communities with lakes and ponds, managers need to be vigilant to prevent Cyanobacteria – also known as blue green algae. Algae is a natural component of any lake or pond system. But in more and mo
Read more

Environmentally friendly solutions for maintaining a lake or pond

When it comes to the management of a lake or pond, many people look for natural and environmentally-friendly options. There are, in fact, many eco-friendly solutions that can be used to help improve f
Read more

Stormwater management tips

You may not realise it, but if you live in a heavily-populated area, most waterbodies you see are man-made. While they often provide aesthetic beauty and serve as a small habitat for birds and fish, t
Read more

Treating lakes and ponds

For years, the accepted method of pond management was to wait for a problem, like an algae bloom or excessive aquatic weed growth and then “react to it” with a chemical application. Although this is e
Read more

What is Dissolved Oxygen (D.O) and why should you care?

You’ve probably heard the term D.O. as it relates to water and water quality, but do you know why it matters and why you should care about it?

D.O. stands for Dissolved Oxygen and refers to the amoun
Read more

How to effectively control aquatic plant growth

Aeration is an integral part of your entire pond ecosystem and is also a tool to effectively manage aquatic plant growth. The most important benefit of supplemental aeration in your pond is buffering
Read more

What you need to know about pond and lake aeration

When looking at a fountain or aerator in a lake or a pond, you’re more likely to focus on the aesthetics than recognize how the system is working to benefit the pond. In this article we highlight the
Read more

Types of lake and pond aeration

There are 2 main types of aeration, surface and bottom. In general, Surface Aeration is best in shallow water applications or when large amounts of oxygen are needed quickly. Splashing style surface a
Read more

How can I circulate my pond?

If aeration is one of the best forms of overall pond management and the best way to balance a pond ecosystem, circulation is a close second. Circulation, just like the blood in your veins, is critical
Read more

How to improve a retention pond performance

Not all retention or detention ponds are created equal. Some retention ponds are much more effective at catching pollutants, removing or using up those pollutants, and discharging cleaner water than o
Read more

What do I need to know about Aquatic plants?

Despite often being the #1 complaint of many pond owners, aquatic plants do serve a vital purpose in any pond ecosystem. They can add vital fish habitat, stimulate the food chain, add to the beauty of
Read more

Does aeration eliminate algae?

While algae is necessary, it can also cause many problems within a pond environment if it is not kept in check. There are a variety of ways to manage and prevent major algae problems within a pond, bu
Read more

How to eliminate excessive nutrients in a lake?

While it may be a constant and uphill battle, there are ways to reduce and eliminate excessive nutrients once they are in your pond. It is ideal to prevent the nutrients from entering the pond to begi
Read more

How do I get rid of algae?

Algae blooms can be the result of various factors, but are usually due to excessive nutrient loading from fertilisers, sewage and animal waste. Identifying and quantifying nutrient sources, both inter
Read more

How to prevent algae from growing in lakes and reservoirs?

Harmful algae blooms, commonly known as HABs, are overgrowths of algae that are often found in stormwater ponds, retention basins, or community lakes. These sometimes toxic algal blooms are caused whe
Read more

Removing sludge from a pond

Lakes and ponds are catch basins for many sources of nutrient pollution. Excess nitrogen and phosphorus from animal or fish waste, stormwater runoff, grass clippings or leaves, and fertilisers are a j
Read more

How do I keep my natural pond clean and clear?

Install an aerator Waterfalls, floating fountains, and lake bed aerators keep oxygen circulating in the water and decaying organic material from becoming toxic, preventing fish loss and algae growth.
Read more

How to keep pond water clear naturally?

Minimise runoff Maintaining dense beneficial vegetation around your lake or pond is extremely beneficial for improving water quality and preventing erosion. This area is commonly referred to as a buff
Read more

How do you get rid of blue green algae in a lake?

These single-celled organisms live in fresh, brackish (combined salt and fresh water), and marine water. These organisms use sunlight to make their own food. In warm, nutrient-rich (high in phosphorus
Read more

How do you get rid of algae without harming fish?

Algae problems happen when you have a combination of water, sun and nutrients (nitrogen and phosphorous). Some species of algae are called filamentous and form mats while some are microscopic making y
Read more

Harmful algae blooms

Harmful algae blooms, commonly known as HABs, are overgrowths of algae that are often found in stormwater ponds, retention basins, or community lakes.
Read more

Filamentous Algae: Longer Lasting Results

String algae, horse hair, moss, and pond scum are just a few of the common terms used to describe the many different species of filamentous algae.
Read more

Denitrification and Floating Sludge

Denitrification is the conversion of soluble nitrate to nitrogen gas in the nitrogen cycle. For denitrification to occur, three factors are needed:
Read more

Wastewater Pond Sludge Level Monitoring

Periodically checking the sludge levels in the WSP can be performed to assess sludge accumulation, and to assist with planning and budgeting for sludge removal. Ideally sludge depth profiles should...
Read more

Concerned about all the leaves, debris, and pollen falling into your pond?


Read more

What you need to know about lake and pond sludge

What is Sludge?
Sludge is a combination of organic debris such as dead algae, plants, grass clipping, leaves, or animal waste and inorganic sand, silt and gravel that builds up on the bottom of lakes
Read more

Winter is Coming

Winter is Coming
Cold weather and cooler ambient air temperatures lead to cooler water temperatures and changes in the aquatic ecosystems of lakes and ponds.
Read more

Bioaugmentation – your questions answered.

The term “bioaugmentation” for using a microbial additive to enhance a biological process is an apt one. Added microbes augment the existing biomass making it more stable and increasing its ability to
Read more

Sustainable Solutions for Large Pond Maintenance

Do you have a large natural pond, farm pond or a very large lined irrigation pond overgrown with weeds, with deep layers of sludge, excessive algae growth or water clarity issues?
Read more

Improving Traditional Treatments with a Biological Approach

Managing a lake or pond is hard for aquatic professionals, homeowners, government workers, golf course superintendents, and everyone else.......
Read more

Handling Toxicity Due To Excess Disinfectant

With increased disinfecting protocols due to COVID-19, we are seeing large quantities of cleaning products reaching wastewater plants............
Read more

Introducing Our New Website

Our new site makes it easier than ever before to find the best possible solution for your lake, pond or wastewater treatment and management needs.

Read more

Benefits of Sludge Control, Removal & Management in New Zealand

The South Taranaki District Council is the first council to use an innovative scheme using bacteria for sludge removal in New Zealand from the Hawera wastewater treatment pond.
Read more

Getting your pond ready for Summer

There’s nothing quite like some water in our gardens to convey a sense of peace and tranquility – a water feature burbling away, a sparkling, clear pond with a few water lilies in it and some goldfish
Read more

Control algae in commercial lakes

How to control algae in commercial lakes and fisheries

When you start to think about it, large expanses of water can be found in many different places:
Read more

Reflection pool using Dyofix Pond Black

Mr Rhodri Jenkins of Swansea wanted a reflection pool so he recently used Dyofix Pond Black to create a beautiful reflective surface.

Mr Jenkins was very kind and sent over pictures of his new water
Read more

Before and after using Dyofix Pond Blue

What a pleasure it was to watch the video, showing the before and after using Dyofix Pond Blue in a fishing lake. As you can see, the fishing lake shores especially were negatively impacted by algae a
Read more

Cyanobacteria now proven to have caused tragic death of over 300 elephants

The mysterious discovery from the air of over 300 elephant carcasses, back in July of this year, sent alarm bells ringing to conservationists within Africa and much further afield.

Whilst over 300 de
Read more

Interesting facts about Alum and Phoslock

Both Alum and Phoslock® are used as a P-inactivation agent in eutrophic lakes and reservoirs throughout the world. Alum has been used in North America and Europe for more than three decades. In contra
Read more

What’s the best way to control pond odour?

Odours can have some very negative consequences as the stench coming from your pond can impact the well-being of those around you, and this is also the most commonly noted reason a smelly pond is repo
Read more

What are the benefits of pond dye?

Your pond mimics a natural waterbody and so is highly influenced by the surrounding environment. This can mean changes in water quality and colour occur over time which can result in common problems i
Read more

Understanding pH in a lake or pond

Every water body, whether it’s a dam, river or a lake, will have a unique water chemistry that is influenced by environmental and animal interactions.

pH is the measure/scale of acidity and alkalinit
Read more

Why is your waterbody murky?

If the water is murky and a brown or tan-ish colour, sediment particles are likely suspended within the water column. This often happens after a large rain event, so shoreline areas should be inspecte
Read more

Why is my pond green?

Without proper water quality testing and analysis, it can be difficult to determine the exact causes behind a green pond. The green you’re seeing may be algae. While algae look similar to some aquatic
Read more

How to solve algae problems?

In communities with lakes and ponds, managers need to be vigilant to prevent Cyanobacteria – also known as blue green algae. Algae is a natural component of any lake or pond system. But in more and mo
Read more

Environmentally friendly solutions for maintaining a lake or pond

When it comes to the management of a lake or pond, many people look for natural and environmentally-friendly options. There are, in fact, many eco-friendly solutions that can be used to help improve f
Read more

Stormwater management tips

You may not realise it, but if you live in a heavily-populated area, most waterbodies you see are man-made. While they often provide aesthetic beauty and serve as a small habitat for birds and fish, t
Read more

Treating lakes and ponds

For years, the accepted method of pond management was to wait for a problem, like an algae bloom or excessive aquatic weed growth and then “react to it” with a chemical application. Although this is e
Read more

What is Dissolved Oxygen (D.O) and why should you care?

You’ve probably heard the term D.O. as it relates to water and water quality, but do you know why it matters and why you should care about it?

D.O. stands for Dissolved Oxygen and refers to the amoun
Read more

How to effectively control aquatic plant growth

Aeration is an integral part of your entire pond ecosystem and is also a tool to effectively manage aquatic plant growth. The most important benefit of supplemental aeration in your pond is buffering
Read more

Types of lake and pond aeration

There are 2 main types of aeration, surface and bottom. In general, Surface Aeration is best in shallow water applications or when large amounts of oxygen are needed quickly. Splashing style surface a
Read more

How can I circulate my pond?

If aeration is one of the best forms of overall pond management and the best way to balance a pond ecosystem, circulation is a close second. Circulation, just like the blood in your veins, is critical
Read more

What do I need to know about Aquatic plants?

Despite often being the #1 complaint of many pond owners, aquatic plants do serve a vital purpose in any pond ecosystem. They can add vital fish habitat, stimulate the food chain, add to the beauty of
Read more

How to eliminate excessive nutrients in a lake?

While it may be a constant and uphill battle, there are ways to reduce and eliminate excessive nutrients once they are in your pond. It is ideal to prevent the nutrients from entering the pond to begi
Read more

How to prevent algae from growing in lakes and reservoirs?

Harmful algae blooms, commonly known as HABs, are overgrowths of algae that are often found in stormwater ponds, retention basins, or community lakes. These sometimes toxic algal blooms are caused whe
Read more

Removing sludge from a pond

Lakes and ponds are catch basins for many sources of nutrient pollution. Excess nitrogen and phosphorus from animal or fish waste, stormwater runoff, grass clippings or leaves, and fertilisers are a j
Read more

How do I keep my natural pond clean and clear?

Install an aerator Waterfalls, floating fountains, and lake bed aerators keep oxygen circulating in the water and decaying organic material from becoming toxic, preventing fish loss and algae growth.
Read more

How to keep pond water clear naturally?

Minimise runoff Maintaining dense beneficial vegetation around your lake or pond is extremely beneficial for improving water quality and preventing erosion. This area is commonly referred to as a buff
Read more

How do you get rid of blue green algae in a lake?

These single-celled organisms live in fresh, brackish (combined salt and fresh water), and marine water. These organisms use sunlight to make their own food. In warm, nutrient-rich (high in phosphorus
Read more

How do you get rid of algae without harming fish?

Algae problems happen when you have a combination of water, sun and nutrients (nitrogen and phosphorous). Some species of algae are called filamentous and form mats while some are microscopic making y
Read more

Harmful algae blooms

Harmful algae blooms, commonly known as HABs, are overgrowths of algae that are often found in stormwater ponds, retention basins, or community lakes.
Read more

Filamentous Algae: Longer Lasting Results

String algae, horse hair, moss, and pond scum are just a few of the common terms used to describe the many different species of filamentous algae.
Read more

Concerned about all the leaves, debris, and pollen falling into your pond?


Read more

What you need to know about lake and pond sludge

What is Sludge?
Sludge is a combination of organic debris such as dead algae, plants, grass clipping, leaves, or animal waste and inorganic sand, silt and gravel that builds up on the bottom of lakes
Read more

Winter is Coming

Winter is Coming
Cold weather and cooler ambient air temperatures lead to cooler water temperatures and changes in the aquatic ecosystems of lakes and ponds.
Read more

Sustainable Solutions for Large Pond Maintenance

Do you have a large natural pond, farm pond or a very large lined irrigation pond overgrown with weeds, with deep layers of sludge, excessive algae growth or water clarity issues?
Read more

Improving Traditional Treatments with a Biological Approach

Managing a lake or pond is hard for aquatic professionals, homeowners, government workers, golf course superintendents, and everyone else.......
Read more

Where Did the Dissolved Oxygen Go in my Wastewater Pond?

A wastewater pond requires sufficient Dissolved Oxygen (DO) to satisfy Biological Oxygen Demand (BOD) and Nitrogenous Biochemical Oxygen Demand (NBOD). Without DO, a pond can experience odours, high e
Read more

Advantages of Industrial Lagoons for Wastewater Treatment

Lagoons are usually thought of in the context of municipal wastewater treatment, however, they are also popular for many industries, such as fruit and vegetable, meat, dairy processing, and wineries.
Read more

Lagoon Microbiology: Heterotrophs vs. Autotrophs

Biological treatment is the most efficient way of removing soluble compounds from wastewater. Until recent times, it was functionally the only way. Biological treatment is far more efficient and avail
Read more

The Hidden Costs of Replacing a Lagoon with a Mechanical Plant

When confronted with new discharge consent requirements, many municipalities feel their only option is to decommission their otherwise adequate wastewater lagoon treatment system and replace it with a
Read more

Meat Processing Wastewater Lagoon Aeration

A meat processing wastewater lagoon can have a bad reputation because of the potential for sludge build-up and odour. However, a properly functioning meat processing wastewater lagoon, one with suffic
Read more

Using Wastewater Lagoon pH as a Diagnostic Tool

Wastewater lagoon pH is a common testing parameter that is easily taken for granted. Dig a little deeper, however, and pH can give you valuable clues about what’s going on in your lagoon and help.....
Read more

Troubleshooting Low Lagoon Dissolved Oxygen

Lagoon dissolved oxygen, or DO, is the lifeblood of the wastewater lagoon system. The bacteria and other microbes that consume biological oxygen demand (BOD) need 1.5–2 lbs. of dissolved oxygen per...
Read more

Lagoon Solids: Using the TSS to BOD5 Ratio to Diagnose Treatment Problems

Biological Oxygen Demand (BOD) and Total Suspended Solids, or TSS, are standard testing parameters for wastewater lagoons. The ratio between the two numbers can provide valuable insight into........
Read more

Lagoon Sludge Reduction In Situ: Methods of Removing Sludge in Place

One of the benefits of lagoons for wastewater treatment is their built-in sludge storage, which reduces the need for sludge handling. However, every lagoon will eventually require dredging to........
Read more

Removing sludge from a NZ municipal wastewater oxidation pond

Here’s how we helped to remove an excess of 1,500m3 of wet sludge volume from an NZ municipal wastewater oxidation pond, within six months, using Parklink’s Advanced Microbial Digestion (AMD) system.

Read more

Enhanced microbial digestion

Enhanced Microbial Digestion is the process of adding specific cultures of microorganisms to WSP in quantities sufficient to increase the average rate of hydrolysis, resulting in reduction of accumula
Read more

Wastewater pond sludge measuring techniques

Wet sludge volume, sludge solids concentrations and inert fraction of dry solids are the main considerations when quantifying or surveying the accumulated sludge in a WSP. All survey levels should be
Read more

Denitrification and Floating Sludge

Denitrification is the conversion of soluble nitrate to nitrogen gas in the nitrogen cycle. For denitrification to occur, three factors are needed:
Read more

Wastewater Pond Sludge Level Monitoring

Periodically checking the sludge levels in the WSP can be performed to assess sludge accumulation, and to assist with planning and budgeting for sludge removal. Ideally sludge depth profiles should...
Read more

Bioaugmentation – your questions answered.

The term “bioaugmentation” for using a microbial additive to enhance a biological process is an apt one. Added microbes augment the existing biomass making it more stable and increasing its ability to
Read more

Handling Toxicity Due To Excess Disinfectant

With increased disinfecting protocols due to COVID-19, we are seeing large quantities of cleaning products reaching wastewater plants............
Read more

Benefits of Sludge Control, Removal & Management in New Zealand

The South Taranaki District Council is the first council to use an innovative scheme using bacteria for sludge removal in New Zealand from the Hawera wastewater treatment pond.
Read more