How can Zeoturb flocculant offer effective flocculation water treatment while protecting sewer networks?
Concrete distribution and sewerage networks are corroded at an alarming rate, partly due to a commonly used additive for conventional flocculation water treatment for domestic drinking water and wastewater treatment process according to published reports in the respected journal Science.
In countries around the world, from industrialized countries such as Australia and the US to developing countries such as Colombia, Ghana and the Philippines, the service life of these concrete pipelines is shortened by 90%.
Urban societies in particular depend on infrastructure support to function optimally and efficiently. Waste water collection and water distribution networks are critical components of today’s modern cities. These systems protect public health and enable the economic productivity of our communities and nations.
Why does this corrosion occur?
This corrosion occurs due to the presence of hydrogen sulfide (H2S) in these pipeline networks. This simple but powerful molecular compound from organic waste and sewage water is metabolized by bacteria and oxidized to form sulfuric acid. This acid has special corrosion capabilities on concrete surfaces, the most predominantly supplied material for large-diameter pipes used to create these sewer and water distribution networks.
Based on study evaluation, it was determined that this corrosion process converts solid concrete into crumbling powder with a speed of up to 10 mm per year or more in some worst scenarios. This would reduce the lifespan of an ordinary collection network from 50-100 years to just 10-12 years.
Given the capital cost-intensive nature of building and maintaining these collection and distribution networks, it is crucial to manage this corrosion process both effectively and efficiently to ensure the life of these piping systems.
What does it cost us to maintain these systems?
It has cost municipalities / townships and cities hundreds of millions of dollars to maintain, replace, and repair their waste water collection networks. A similar amount is spent trying to reduce this problem with expensive chemicals in the sewer and distribution networks to mask these problems in many cases with little success.
How can this corrosion problem be solved?
The first step is to view the water and wastewater process in an integrated way. With this method we can assess the sources of potential hydrogen sulfide and what we can do to minimize this contamination. Studies have shown that there is a surprising but impressive connection between waste water management and water treatment. To reduce the formation of hydrogen sulphide, we should either reduce the contribution of sulphate to the waste water network or reduce the organic substances in the waste. The easiest way to do this is to reduce the sulfate contribution.
A closer look at the water treatment process
Many municipal drinking water plants or industrial Ro plants use coagulation and flocculation water treatment chemicals to remove turbidity in the drinking water purification process. Research has shown that more than 50% sulfate can be the result of the drinking water purification process.
One of the most common chemical coagulation / flocculation water treatment is aluminum sulfate “alum” due to the ease of availability and relatively low costs.
In this “alum” treatment process, while the aluminum is combined with the contamination and removed from the water, the sulfate is soluble and remains in the water. The sulphate levels may not cause harm to humans, but they have a proven effect on significant sulphide formation in sewer networks.
A change in a natural environment- A solution obtained
friendly flocculating agent such as powder Zeoturb , would mean that the sulfate source that contributes to the significant increase in sulphide in the sewer networks, it would be drastically reduced. This process change can be achieved with low capital costs with additional positive benefits for cities, towns and communities around the world.
Studies have also shown that switching from aluminum sulfate to a solution such as the GOTO Zeoturb bio-organic flocculant can dramatically reduce concrete corrosion by a factor of 35% after just 10-12 hours and more than 60% over a longer period of time.
use of Zeo Turb water purification with flocculant powder would add marginal increases in water costs, but there would be significant overall cost savings for these municipalities and communities through the drastic reduction in the maintenance costs of the sewerage networks that would more than justify the change.
These benefits are in addition to the positive impact on the use of ZeoTurb for flocculation in waste water treatment processes that would also reduce sludge dewatering and associated sludge disposal costs
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