Is chlorination used in the treatment of sewage?

The use of chlorine in sewage water treatment has been in existence for a long time now. But the fact remains, even though chlorine has been in use, it needs to be adopted very carefully, as it is toxic in nature. Chlorine either in gaseous or liquid form can be used for the disinfection of sewage water treatment. Disinfection of wastewater is very essential for all living organisms on the planet.

The main function of chlorine, when used in sewage water treatment is to make it free of pathogenic microorganisms. In the process, chlorination shouldn’t leave any compounds, which is harmful to human health. Chlorine residue is not harmful in drinking water, whereas in sewage water treatment it may adversely affect wildlife, when disposed to the natural sources of water.

Chlorine inactivates the virus and bacteria found in the sewage. It is also able to degrade and oxidize soluble impurities, such as pharmaceutical or agricultural compounds. But along with these, there are some more advantages of using chlorine for sewage water treatment and they are as follows:

  • Prevents foul odour through the air scrubbing process
  • Destroys cyanides and phenols
  • Controls the activated sludge bulking in sewage water
  • Removes the ammonia from the sewage water
  • Stabilizes the waste activated sludge, before the wastewater is discharged
  • Helps in eliminating scum and grease from the sewage water
  • Mitigates odours and helps in keeping the septicity in check
  • Controls foaming and filter flies
  • Disinfects the black and grey water

Grey water is the wastewater from the wash basins, washing machines, bathing etc., while black water is the sewage water from toilets and so both these waste waters need to be treated, before being discharged into the main reservoirs. This is as far as homes are concerned, but it is every factory owner’s responsibility also to ensure that the water disposed to the mains is suitable for humans, aquatic life, birds, and all other creatures.

Some of the major industries, which need to have sewage water treatment and chlorinate in it are:

  • Wineries
  • Mining
  • Oil and Gas
  • Power Plants
  • Food Processing
  • Iron and Steel Production

In short, we can conclude that all chemical manufacturing units give out an enormous amount of waste water and it’s treatment and chlorination should be given high priority. As, if not done properly, can adversely affect humans and other living organisms.

So, if you are looking for a reliable sewage water treatment company, who’ll take care of every aspect of your wastewater treatment process, then By Jas Engineering is a great choice, wherever you’re based in Australia. Visit us at Byjas or call us on (03) 5979 1096 for more information.

We have been in the industry for 35 years and are family owned. We have the experience in various industries and have successfully completed many large commercial projects since our inception. You can go through the projects and reviews published on our website for more information.

We service across Australia, regional town centres, remote regional areas, and main capital cities.

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How do Wastewater Aerators Work?

If you’re wondering how wastewater aerators work, you’re not alone. Many people don’t know much about aerators or the role they play in sewage treatment. This blog post will discuss how aerators work, and why they are such a vital part of the sewage treatment process.

What are aerators?

Aerators are devices that introduce air into wastewater, so wastewater aeration is a process of using aerators to mix air and water. This process provides dissolved oxygen to the water, helping to remove odours from the water, and to break down organic matter. This process is vital because it helps to remove harmful bacteria and other contaminants. Aerators come in many shapes and sizes, but all operate with the same aim.

Why do we need aerators?

Since nutrient-rich wastewater significantly impacts the relationship between living things and their surroundings, governments enforce regulations to control the number of contaminants in wastewater discharge. These rules stipulate that all liquid waste producers, whether residential, agricultural, commercial or industrial, must treat wastewater.

Types of aerators

There are two types of aerators: surface aerators and submerged aerators. Surface aerators float on the water’s surface and use paddles or propellers to create turbulence and mixing. Submerged aerators are placed below the water’s surface and use diffusers, impellers, or propellers to create bubbles that rise through the water and help aerate it.

Surface aerators have, over time, been the subject of intensive development, with their primary application being in the treatment of wastewater through activated sludge. The primary factor in the design of these devices is naturally their ability to transfer oxygen to water efficiently. A surface aerator creates a large surface area between air and liquid to facilitate oxygen diffusion.

Types of surface aerators

There are two main types of surface aerators: diffused aeration and mechanical aeration. Diffused aeration works by bubbling air through a diffuser, breaking the bubbles into tiny droplets. This process adds a lot of oxygen to the water and is very efficient. On the other hand, mechanical aeration uses paddles or impellers to mix the air and water. This type of aeration is less efficient than diffused aeration, but it is still an important part of the sewage treatment process.

When implementing diffused aeration, more oxygen is added to the water, which helps break down the organic matter present in it. This process can also eliminate harmful bacteria and other contaminants from the water, making it safe for human use. Wastewater aerators are a vital part of the sewage treatment process.

Trust the experts

By Jas specialises in sewage and wastewater treatment. Visit us at www.byjas.com.or call us on (03) 5979 1096. We have been in the industry for 35 years and are family-owned.

We service across Australia, regional town centres, remote regional areas, and main capital cities. If you want to learn more about aerators or surface aeration, please contact us and we’ll be happy to answer any questions you may have.

What you can read next

Waste water treatment for Wineries
Specialising in the Winery Industry
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Wednesday 21 September

We’ve got great news from our Incident Management Team – the Shepparton Wastewater Management Facility has returned to normal winter operating levels, and odour is no longer being released from the aerated lagoons.

With that, its been recommended to close out the IMT this week and we’ll be working on some wider communications materials to inform the community about our progress and success in returning the plant to normal.

We’re seeing a continuing downward trend in the levels of organic load leaving the High Rate Anerobic Lagoon, which is the primary treatment lagoon at the facility. It’s returning to levels we normally see in winter, close to 100mg/L, which we’re really happy with, and shows the lagoon’s treatment performance has stabilised and is working well. We’re also seeing temperatures begin to increase in the lagoon, and continuing warmer weather will create more optimal treatment conditions.

You can see the trends in the 14-day average graph below. Under optimal treatment processes, the gap between the orange and blue lines should be as large as possible.

We’ve also seen more key areas in our key performance indicators turn green over the past two weeks. There are still a few yellow ones, but we’re confident they’re very close to turning green in the near future as well.

These indicators show key data we’re looking at during wastewater sampling in the main treatment lagoons, including pH levels, alkalinity levels, VFAs (volatile fatty acids), the VFA to alkalinity ratio, as well as dissolved oxygen and organic loading – all are important in ensuring the wastewater treatment process works as best it can.