Water treatment plant: understanding sludge treatment & disposal

Gestión de la salmuera en desaladoras de interior

Water treatment plants are plants that need to be installed for the recycling of water that could be beneficial to several domestic purposes. Now let’s learn more about it in brief before opting for water treatment pilot plants.

Understanding Sludge Treatment & Disposal

The residue that piles up in sewage treatment plants is known as sludge. Sewage sludge is the semisolid, solid, or slurry waste material generated as a by-product of sewage treatment processes. However, this residue is often classified as primary & secondary sludge.

Primary sludge is produced from sedimentation, chemical precipitation, & other primary processes, while secondary sludge is the activated litter biomass arising from biological treatments. Most often, the sludges are mixed together for additional treatment & disposal.

Treatment & disposal of sludge are crucial factors in the design & operation of every wastewater treatment plant. Two primary targets of treating sludge before the last disposal are to minimize its volume & to level off the organic materials. Leveled-off sludge doesn’t have an offensive odor & can be treated without causing a health hazard.

If you want to install a pilot water treatment plant, then opt for water treatment pilot plants.

Treatment methods

Treatment of wastewater sludge includes an association of thickening, sludge digestion, & dewatering methods. Let’s go through it in brief before you go for water treatment pilot plants.

1. Thickening
Thickening is the first stage in sludge treatment as it is impractical to handle fine sludge. Usually, thickening is accomplished in a tank known as a gravity thickener. However, a gravity thickener can minimize the sludge’s total volume to less than half the initial volume. A substitute for gravity thickening is dissolved-air flotation. Here, air bubbles take the solids to the surface, where a thickened sludge layer is formed.

If you want to install a new wastewater treatment plant, it’s better to opt for water treatment pilot plants.

2. Digestion
After piling up all the solids from the wastewater, sludge begins the process of sludge digestion. Digestion is a biological method in which the organic solids in the sludge are decomposed into static substances. However, this process also helps minimize the overall mass of solids while eliminating any present pathogens to allow easy dewatering.

The digestion process is a 2-phase process. In the first step, the dried solid sludge is heated & mixed in a closed tank to allow anaerobic digestion by acid-generating bacteria. Further, these bacteria hydrolyze the bigger molecules of lipids & proteins present in the sludge & break them down into small water-soluble molecules, which the bacteria then ferment into different fatty acids. 

Later, the sludge flows into the 2nd tank, where it’s converted by other bacteria to generate a mixture of methane & CO2 (carbon dioxide), after which the methane is collected & reused to energize the digestion tank & generate power.

Have you been planning on installing a new wastewater treatment plant? In that case, opting for water treatment pilot plants will be the best option for you.

3. Dewatering
After recovering valuable gases & other by-products, the left-over sludge is then dewatered before end disposal. Generally, dewatered sludge contains a substantial amount of water, around 70 percent, despite its solidified state. So, it’s crucial to dry & dewater the sludge earlier.

While utilizing sludge-drying beds is the most usual way to carry out this method, it’s highly time-consuming & might take weeks before the method is complete. To fasten these methods, sewage management plans are hiring solid-liquid separation appliances to carry out this method.

Moreover, centrifugation is gradually becoming one of the most favored methods of dewatering. Bypassing the sludge thru a centrifuge, it becomes simpler to retrieve all the water & enable simpler handling of the solid litter in shorter durations at cheaper costs. Other alternatives involve the rotary drum vacuum filter & the belt filter press.

Now that you understand how all the treatment methods, it is now time you should install your wastewater treatment plant by opting for water treatment pilot plants.

4. Disposal
The last destination of treated waste sludge is the land mostly. Dewatered sludge can be concealed underground in a sanitary landfill. It can also be spread on agricultural land to use its value as a fertilizer & soil conditioner. Since sludge might contain harmful industrial chemicals, it’s not spread on the ground where crops are harvested.

When a suitable place for land disposal is not accessible, as, in urban regions, sludge can be incinerated, incineration evaporates the moisture & turns the organic solids into plain ash. The ash should be disposed of, but the minimized volume makes disposal more efficient. Control of air pollution is a very crucial consideration when wastewater sludge is incinerated. Proper air-cleaning devices like scrubbers & filters should be used.

If you wish to install a wastewater treatment plant, then choosing water treatment pilot plants will be the best option.

Conclusion

In summary, a combination of these methods makes wastewater treatment plant a sustainable long & short-term solution to the water crisis the world is facing today. However, it’s estimated that the world’s population will increase to nine billion people, which would only cause a rise in the amount of water that needs treatment. At the same time, this will cause the production of significant amounts of usable freshwater, thus helping fight water scarcity.

Have you been planning to install a new pilot wastewater treatment plant? In that case, opt for KEIKEN Engineering. Here we provide the most innovative & efficient tech available in the market. If you wish to know more, call us at +34-910577254. You can also give us a quick call at info@keiken.es.

3 reasons why world is facing water crisis & can sesalination of seawater help

¿Por qué la desalinización eficiente del agua de mar es la llamada a cubrir las necesidades futuras de agua?

Water crisis is not a new discovery. For the past few decades, it has become apparent the world is no facing water crisis. Drought in Africa, water rationing in first world countries and flooding in some parts of the world, all point out the fact of water crisis. Even though the more than half of the earth surface is covered in water, there is a severe crisis of potable water.

Decreasing groundwater levels has painted a grim picture of the future. Food and water crisis will dominate the world in the next few decades. So, what is the reasons for global problem like water crisis?

Here are some of the major reasons behind water crisis:

1. Global Warming
One of the biggest reasons for water crisis is the changing climate. Global warming is making the planet hotter each day. The already hot areas are burning like hell while the cold geographies like the Artic are slowly seeing more warm than cold. Ice are melting in Antarctica while dry places like India are seeing slow depletion of ground water. Likewise, there are fewer rains due to phenomenon called Hadley Cell expansion which makes the cloud move towards the poles. This will create a very grim situation in the future for regions like the Middle East, sub-Saharan Africa, Central America.

But the other side of the coin shows another grim picture – flooding. While some areas are receiving less rainfall each year, other areas that are closer to waterbodies like sea and river are seeing floods. The water level is rising and the risk of flood is great.

All these things are happening due to climate change because of global warming. This has led to water crisis in many areas.

2. Population Increase
It is no secret that increase in population is an important reason for lots of crisis including water crisis. Global food crisis is happening already and so is water crisis and the increasing population is the reason. It is a simple logic – more people more demand. The gap between demand and supply has resulted in global water crisis. Availability of drinkable water is already short and the industries too need potable water. Rapid population growth, industrialization, energy production from fossil fuels and the lifestyle demand of richer countries are resulting in the high demand of potable water.

Then there is depletion of groundwater in countries like India where it is needed for drinking, farming, industrial application and more. Advanced farming methods too are responsible for decreasing groundwater. Earlies, farming largely dependent on monsoon rain, which is not always reliable. The new technology may have provided an alternative, but it is also putting a lot of pressure on the groundwater.

Read More: Desalination of seawater

3. The Damage Done to the Eco-system
The earth’s ecosystem is the reason why life is sustainable here. But rapid industrialization and irresponsible human behavior is destroying the ecosystem. For instance, cutting down of trees, and diverting river course is creating an imbalance. Natural vegetation is responsible for replenishing the water in the ecosystem. Loss of trees and natural vegetation is creating this imbalance which is resulting in water crisis across the world.

The pollution is making the groundwater unsuitable for drinking and for human use. Untreated water is making its way to natural source of water, making it unusable. This is another reason why the world is facing water crisis.

Is there a Chance of Reducing the Effects of Water Crisis?
The good news is that the world is waking up to the problem of global warming and its effects. It also includes water crisis. Industries, government and individuals across the globe are now making collective effort to reduce waste and maximize the use of available resources.

One of the best methods of dealing with the water crisis is efficient desalination of seawater. The vast seawater available is enough to provide clean and portable water to the world. Desalination is a process that can easily convert the seawater or brackish water into potable water. This will at least help industries get water for their production while reducing their demand on groundwater sources.

The Bottom-line
From climate change to population boom to water wastage, there are many reasons for the global water crisis and its all man-made. It is high time that alternatives are explored to fight the water crisis while saving the planet from complete destruction. Efficient desalination of seawater is one of the methods that can help deal with water crisis across the globe. It can provide water for both drinking and industrial purposes.

Keiken Engineering provides solution like Efficient desalination of seawater to industries to help them meet their water demands. We offer cost-effective and customized solution for the best results.

Contact us at info@keiken.es or call us at +34 91 057 72 54 or +34 93 681 16 50.

How pilot water treatment plants are helping industries become self-reliant

Membranas de ósmosis inversa: vida útil, ensuciamiento y limpieza

Pilot water treatment plants are used to test applications using various methods like Reverse Osmosis, and Ultrafiltration. These methods help industries in finding the best solution for water treatment, recycling and saving cost.

Given the world’s water crisis and concern for the environment, industries and companies are now more conscious of their industrial activities. In this regard, water treatment allows them to reduce pollution and help save the environment while gaining efficiency. Pilot water treatment plants can assist industries in achieving those goals. The long-term result of this method self-reliance.

Pilot water treatment plants are suitable for industries that use large volume of water in their various applications.  

What are Pilot water treatment plants?

Pilot plants for water treatment are small-scale experiments that are carried out to test the applications. The same method and set-up can then be created later on at full-scale depending on the needs of the specific company of industry.

Industries related to water treatment and supply, need this technology to find an easy to treat water. In case of wastewater treatment, pilot plants can help industries find a solution that matches their needs.

Pilot Wastewater Treatment Plants

Industries that use water for their applications, need to treat water before they are released into the natural water sources like rivers and underground water. The treatment process can remove the harmful contaminants like chemicals from the water and make it safe for the environment.

Treating wastewater is important so that it doesn’t contaminate the natural water sources, especially the ground water used for drinking. There are various methods of water treatments, such as:

• Reverse Osmosis
• Ultrafiltration, Nano and Microfiltration
• Adsorption Desalination
• Membrane Distillation
• Forward Osmosis

Depending on the needs of a specific industry, any one of the above methods can be used. The pilot plant is designed to test which method would be best suited for their water treatment needs.

Pilot Plants Provide Valuable Data

Before industries can set-up a full-scale water treatment plant at their premises, they need to first make sure that it will work efficiently. This can be done by obtaining valuable data via Pilot water treatment plants.

Pilot water treatment plants provide data like which method of filtration is right for the purpose, the cost, and the risk factors. The information obtained from such experiments can then be applied to build a large-scale water treatment plant at their premises. This will also save them a lot of time and cost and will help them become more self-reliant. It will also help them find a solution that works for them.

Assureds Results Before the Set-up

Before investing huge amount of money on a large-scale set-up of a water treatment plant, companies need proof that it will work. The pilot plants are designed to conduct tests and make changes until it fits the bill. Once that’s done, the industries can use the data to build an actual plant for wastewater treatment.

The pilot plants ensure that the results will be same when it is done at a large scale. This is the whole point of the experiments. At first, the tests are carried out in smaller scale so that it can changes can be made easily. Various methods are testes and used to find the right one. For instance, Reverse Osmosis may work for one company while it may not fit the others. Which is why, several methods are used to determine which one will provide the best results.

Pilot water treatment plants can predict the results so that companies can set-up the plant without any hassle or doubt.

It Ensures Smooth Operation

Any problems in the process of water treatment can be done easily at small-scale. Which means, when the actual wastewater treatment is done, the whole process will run smoothly. This will ensure that the companies don’t lose time or money.

Pilot plants are one of the best ways to conduct experiments and find solution that works. It can be customized to meet the specific needs of the industries. This way, they can find the right solution at the right time.

Making Industries Self-reliant and Efficient

The pilot plants are helping industries become more efficient and self-reliant by providing them with accurate data. Industries are now relying on such technology to find the solution they need. Industries can now meet their goals and become a responsible organization.

Companies can gain the trust of the citizens and comply with the regulation. The world is conscious of their responsibilities towards the environment and they expect the industries across the globe to work to make environment safe from harmful industrial waste. With a highly efficient and cost-effective solution like pilot water treatment plants, industries can easily achieve their goals.

The Bottomline

Pilot water treatment plants are helping industries become more efficient and environment-friendly. The unique solution provides them with data and foundation upon which they can build a fully functional water treatment plant in their premises. In many ways, it is helping them become self-reliant. Keiken Engineering offers customized solution for Pilot water treatment plants for wastewater treatment and water supply industries. We offer customized solution that can help you save a lot of time and cost. Contact us at info@keiken.es or call us at +34 91 057 72 54 or +34 93 681 16 50.