The ugly truth: how fast fashion pollutes our drinking water


The fast fashion industry has become one of the biggest polluters of the environment including drinking water.

Oil waste affects marine life much more than you might think


Did you know that oil causes more harm to marine life than the 6 billion kilograms of waste that are dumped into the ocean every year?

The future of water: seven not-so-optimistic predictions


What will happen to the glaciers in the Dolomites or to the groundwater in Spain?

These industries are the biggest water polluters: what are the causes and what can we do?


It might seem that water is abundant on our blue planet. However, when it comes to drinking water, the figures are nowhere near as optimistic.

Can we destroy the 'forever chemicals'? Scientists have come up with a new promising method


Just two things were enough for the scientists to make the forever chemicals harmless. Keep reading to find out which ones.

We know we don't have enough water: why do we waste so much of it?


Have you ever tried asking your friends how much water they use per year?

What is thermal hydrolysis and what are its benefits in wastewater treatment plants?


Sludge from wastewater treatment can serve a good purpose. It just needs to be processed using appropriate methods.

Can desalination solve the drinking water shortage?


Millions of people already depend on desalinated water. But is this technology sufficient and, above all, sustainable?

The 10 cities most likely to run out of drinking water


Deforestation or unnecessary spills are the reason why cities face a serious threat of having no fresh water supplies.

A common dilemma regarding wastewater treatment plants: what is a safe distance from homes? And is it even safe to live near one?


This is a dilemma that concerns many people, so we have decided to explore these issues in more detail.

Fertilizer production and wastewater irrigation. Rendering is greener than you might think


Although the plant processes animal scraps, it's more environmentally friendly than you might think. Keep reading and find out why.

Are septic tanks environmentally friendly? Yes, if they are maintained properly


If you do not maintain septic tanks, there is a risk of contamination of groundwater and surface water.

It is so big that you can see it on maps: take a look at the Great Pacific Garbage Patch


Estimates say that the patch is made up of 80,000 tons of garbage. Currently, its area is comparable to the size of Europe.

Using roots for wastewater treatment? A root zone wastewater treatment plant is ideal for houses, production halls and small communities


Root zone wastewater treatment plants (WWTPs) are a quiet solution that works without electricity and looks like a garden.

What is a sponge city and what is its contribution to better water management?


Typical examples are green areas on the ground and also on the roofs of buildings, from where water is drained for treatment.

Fungi and water treatment: see what they can do


According to a well-known mycologist, it is possible that mushrooms will eventually save us from a climate catastrophe.

Explained: what is blackwater & greywater and a guide to its recycling


We produce both blackwater and greywater throughout the entire day. In both cases, it is wastewater that comes mainly from households. But do you...

Agriculture is one of the biggest water consumers. Here are 5 ways to save as much as possible


More than 70% of the world's water consumption goes to growing plants and raising animals. How can we reduce this volume? Keep reading to find some...

Pepsi, Facebook, and Microsoft: how global companies strive to restore more water than they consume


You might be familiar with the terms sustainability, carbon neutrality, renewable resources, and biodegradable packaging. But do you know what it...

Wastewater treatment across the world: which countries recycle the most and where is the best water quality?


We have summed up a few highlights about wastewater treatment around the globe. Keep reading and find out which countries recycle the most and which...

New sensational invention: wastewater treatment system that cleans water and recovers electricity


Wastewater has a bigger potential than previously assumed. Thanks to scientists from Washington University, wastewater can be recycled and also used...

Lake Chad is disappearing. How can we save it?


Lake Chad is a water source for 30 million people. The lake is gradually shrinking and its only hope is a rather divergent project.

How to revive water? FAQ about wastewater treatment


Both too high and too low temperatures have adverse effects on wastewater treatment. So, what is the ideal temperature? Where are the sources of...

Can digitalization prevent water issues in Europe’s cities?


Urban areas in Europe already face difficulties with sustainable management of urban water resources. Furthermore, shall the projections of the...

Rivers and lakes are the most degraded ecosystems: can we still save them?


Recent studies show that the decline of freshwater biodiversity is twice as fast compared to ocean and forest biodiversity. Is it too late to reverse...

Researchers discovered a new bacterium for more efficient and cheaper wastewater treatment


You might think that researchers from National University of Singapore (NUS) spent years on their research. However, the bacterium was found by mere...

Industrial wastewater recycling and reuse in production


The project implemented by Hydrotech several years ago in Kaluga, Russia, has had a longer start-up, however, its development has been quite...

Chlorine, ozone, or UV light: How is wastewater disinfected?


Disinfection is the last and one of the crucial steps of wastewater treatment. Why? Read our article.

Why is agriculture the biggest water polluter?


Agriculture accounts for 70% of water use, and yet counts as the world’s biggest polluter. How is this possible? Read our article and find out more...

Comparison of wastewater sludge disposal methods: a guide to make the best decision


The sludge has to be dewatered, dried and reduced to the lowest volume. Keep reading and find out how the process works.

7 most common methods for oil spill clean-up


Oil booms, skimmers or sorbents. In this article we will discuss the most used methods to clean up oil spills at sea.

The Netherlands stopped spreading sludge on its own land. It is now imported to another country


British Environmental Agency allowed the Netherlands to export 27,500 tons of sewage sludge to the country.

Billionaire Bill Gates promotes wastewater treatment


What do Microsoft and a low-cost wastewater treatment plant have in common? Bill Gates stands behind both of them.

Impact of flooding on water quality


Hurricanes Irma, Katrina, and Dorian: all of them caused major flooding in the U.S. in the course of the last two decades. Flooding causes property...

Water shortages affirmed amid coronavirus pandemic


Hand washing in India is a luxury and Mexicans must use bottled water for hygiene.

COVID-19 in wastewater: doesn’t survive proper treatment and under certain circumstances might even help


Late in April, samples from 12 wastewater plants were collected in Kansas. Up to 10 of them were found to have genetic material with the contents of...

4 steps of wastewater treatment in candy production


Candy, chocolate and other confectionery: you might not even imagine how something so delicious could do so much harm to the environment. But what if...

Vital wastewater treatment technologies in the waste plastic processing industry


Technological machines for waste plastic processing may vary depending on the plastics processed (e.g. PET, PP, HDPE, LDPE etc.). Therefore, this...

Advanced methods of wastewater treatment in dairy processing industry


The first article covered only the partial dairy wastewater treatment. Here you can find out more about the difference between the aerobic and...

3 methods of wastewater treatment in dairy processing industry


Good news! The wastewater in the dairy processing industry is not that hard to clean. However, the technology employed is fairly complex.

Face masks piled up in the sea and insufficient hygiene: coronavirus vs. water supply


Hand washing is one of the fundamental measures to prevent the spread of COVID-19. But what if the people have no water access or do not have enough...

Wastewater treatment in big cities: follow Hanoi's example


Hanoi is planning to build a sewer system to direct the polluted water from the To Lich River to a wastewater treatment plant. What seems to be a...

7 common myths about drinking water and its sources


Many nonsense myths about water and its sources persist in the public sphere. This article will walk you through the most common and most recent ones.

Less flooding and more efficient agriculture: how water harvesting helps Kenya


Growing population, unpredictable weather and poorer soil quality: these are some of the causes why Kenya struggles with water shortages.

Thousands of ships fitted with ‘cheat water treatment devices‘ cause ocean pollution and violate emissions regulations


All ships are required to reduce air pollution by using cleaner fuel by 2020. The owners started to adjust; however, not as expected.

High quality of European bathing sites is to thank the wastewater treatment


In 2019, The European Environmental Agency published a report on water quality at bathing sites across Europe.

Cotton irrigation and extreme droughts: how the Aral Sea turned into desert


Formerly the fourth largest freshwater lake in the world used to have an area of 67,000km2. The area shrunk to one fourth of its original area.

The Ocean Cleanup Project continues. The new system aims to clean both oceans and rivers


The Dutch organization’s goal is to clean the world’s 1,000 most polluting rivers by 2025.

Russia's Lake Baikal became extremely polluted by harmful toxic materials and anti-WWTP regulations


The largest freshwater lake in the world is facing extreme pollution.

Useful but harmful. How washing clothes made from synthetic materials causes ocean pollution?


Synthetic fibres have good elasticity, dry fast, and keep warm. However, if you wash them in a washing machine, you send out thousands of plastic...

Sludge drying and incineration technologies in WWTPs. What is the future of sludge management?


The content of substances in the sludge and development of EU laws drives the efficient ways of sludge management in the WWTPs.

India is facing serious water crisis: recycling and agricultural relocation could help


India appeared on the list of the most water-stressed countries due to the Chennai crisis and also the risk of groundwater shortage in Northern areas.

2 in 1: the largest solar farm in New Zealand to be built on a wastewater treatment plant


New Zealand currently generates up to 80% of the country's electricity from renewable sources. A new, floating solar farm will join the...

T·PARK, Hong Kong: an astonishing sewage water treatment facility with a spa and theatre hidden inside


The T·PARK complex reflects a vision to transform waste into energy and change the public opinion on resource recovery.

Will mixing of freshwater with seawater make coastal wastewater treatment plants energy independent?


Blue energy could make coastal wastewater treatment plants (WWTPs) run independently, at low-costs, and without damaging the environment.

9 countries that consume the biggest amount of water


Look at the list of countries currently spending the most of the water on the planet on the smooth running of the industry and households.

The United Nations want to keep water for future generations. How do they prevent a deepening water crisis?


During the celebration of this year's International Day of Water, the United Nations launched an initiative that will last for a decade.

How to make the sludge dewatering process more efficient and better?


By choosing the right chemicals, setting up the machine and proper dosing, you can achieve the desired cost reduction.

Up to 60% of Europe's rivers and lakes are contaminated, says the European Environment Agency


The European Union Water Framework Directive 2000 program, after 18 years of operation, did not reach the results expected after its first phase.

The price of beer will double as a result of climate change


How much will we have to pay for one of the most popular alcoholic beverages in the future?

7 simple tips how to combat water pollution by plastic waste


Researchers have discovered small plastic particles also in Slovak drinking water sources.

Will we be converting wastewater to potable water? It appears to be a necessity


Several studies have confirmed that the conversion of wastewater to drinking water is safe using current technologies.

Did you know that we can make heat and electricity from bio-waste?


There are ways in which biodegradable waste can be processed in a controlled manner and even increase its value.

Global war for water: Is this threat real?


Global climate change is largely threatening water supplies and scientists warn of the catastrophic consequences of our carelessness.

The 10 most beautiful water dams from around the world


Water dams are not just concrete masses that hold water in one place. Many times they are also impressive.

How to deal with highly polluted wastewater in starch industry


Read how Hydrotech engineers have designed the process of anaerobic purification of starch wastewater.

Water in the oceans also poses a risk of radioactive waste contamination in addition to pollution caused by plastics. What danger does it represent?


The dumping of waste on the seabed began to be subject to active international regulations only in the 1970s.

4 reasons why people in Africa suffer from a lack of clean water


Have you ever wondered why the people of Africa have such a great thirst?

Blue, Green, Gray: Do you know what the colors of these water tracks mean to the planet?


The color traces of the water indicate the rate of use of this natural resource in the production and production of goods and services of daily...

Car washes are more friendly to the water than cleaning cars at home


Do you wash the car on the sidewalk in front of the house? If you thought you would save water and the environment in this way, you were wrong.

These are the 4 most common problems associated with the sewage treatment plant and its operation. How to deal with them?


A wastewater treatment plant is not a nuclear power plant but still you can encounter some difficulties when operating it.

Uncover the most successful amateur projects that remove accumulated waste from the sea


The founder of a project to save the world´s oceans and the underwater world doesn´t necessarily have to be college graduate in the field of...

5 ways you waste your water without being aware of it


Your real water consumption is not just how much water you drink and run from the tap.

Water on Earth: How much do we have of it on our planet and how much of it is drinking water?


There are about 1.3 zetta liters of water on the Earth, but only 0.12% can be used for consumption, industry and agriculture.

5 creative examples of how to use recycled wastewater in the company


Recycled wastewater can be used almost without limitation. You might be convinced by the following five examples.

The market for wastewater treatment technologies is set to double by 2020


The wastewater treatment sector is considered to be the fastest growing global business.

What causes the WWTP's overload and how to solve this problem?


Read important information about the consequences of overloading of WWTP's and possible solutions to these situations.

Singapore scientists intend to treat wastewater using electricity. What is their vision?


Discovery from the National University of Singapore can solve the problem of eliminating dangerous elements in wastewater coming from the...

10 countries that are proud because of the cleanest water in the world


On the Earth there are several countries that are extremely aware on the cleanliness of their water resources. Lets take their approach as a...

Container-sized wastewater treatment plant: Smart solution for treatment of small volumes of wastewater


Read about which wastewater treatment options are currently available for small businesses.

Planet Earth pays too much for cheap apparel. Clothes can in fact also be colored ecologically


It is striking that up to 20% of industrial water pollution in China comes from dyeing or coloring textiles.

Reconstruction of the WWTP for Volkswagen Bratislava: How the potential of bacteria can be used?


Volkswagen Bratislava needed to expand the capacity of the biological part of WWTP. Read about how we did it.

Farmers are fighting global drought. The crop is being grown on sewage from the toilets


From 2014, approximately 28% of the water used for irrigation in Cyprus comes from local wastewater treatment plants.

How we saved tens of thousands of euros in the Russian brewery by replacing worn-out elements of the wastewater treatment plant


What amount of money did we help to save one brewery in Russia, where we rebuilt their wastewater treatment plant?

Crisis in the capital of the Republic of South Africa


The Day Zero Drinking Water Day is set on April 12, 2018. And what then?

This is the 9 most bizarre colored rivers and lakes of our planet


The bizarre coloring of water is many times only the initial degree of serious pollution.

We are buying millions of plastic bottles every single hour. Most of them end up in landfills and in the oceans.


According to the Clean Air Council, only 2.5 million used plastic bottles are discarded every hour in the United States. If we realize that time...

From sewerage to the brewery: Danish brewery uses human urine to make its beer


Do not worry, no hygiene or food standards have been violated in this case.

Take advantage of what falls for free from the sky. Retaining rainwater will help the planet and you also.


By retaining rainwater we are able to save up to 40% of the annual cost for drinking water we use. We help ourselves while helping our environment.

The Danube has a problem: It suffers from an increase in plastic and pharmaceutical waste


At present, 322 million tonnes more plastics are produced than in 1950. Even the tenth of this will end up as waste in the sea.

Managing director of Hydrotech: In Russia, they apply criteria for the quality of cleaned water so strict as I have never seen anywhere else in Europe


Nobody wants a product we produce but it is a necessity. This is how Dušan Vančo – veteran managing director of Hydrotech describes the product...

What if the water level drops significantly in Slovakia as a result of global warming?


Solution of this problem can be a Zero Liquid Discharge (ZLD) application.

Business can not be done just for a profit. It wouldn´t be enough.


The company is good when it produces profit. Is it enough, or should it bring something more?

Why do we keep the sheep? They relieve the corporate culture and the unused area of our land is mowed by them ecologically.


We have come up with 4 reasons why it pays off to keep the sheep in the company or in the area around the wastewater treatment plant.

How do the wastewater treatment plants (WWTPs) work?


Drinking water is a very precious commodity for almost half of the world. Have you ever wondered what is happening to wastewater after we flush it...

These water protection campaigns have a strong message for all of us


Their purpose is to draw attention to serious facts about the lack of water and its pollution, the protection of drinking water resources, but also...

Bizarre way of highlighting pollution issues: Taiwanese students made popsicles from polluted water


Polluted water is a huge problem nowadays. Look at how a couple of Taiwanese university studets pointed to this problem in an original but also...

Due to medicines and cosmetic goods we flush down the toilet, male fish are changing into hermaphrodites


Have you thought about where chemicals from cosmetic goods and medicines we normally use end up? The large part ends directly in the rivers.

The wastewater treatment plant in the Netherlands filters used toilet paper. It is used as building material


Did you know that Europeans consume up to 5 million tonnes of toilet paper per year? In the Netherlands they have found new use for it that is...

Toilet is not a bin! Here is a list of items you should put in your bin instead


By flushing unwanted waste in a toilet or washbasin, you can cause not only pipe leakage and subsequent flooding of the household. What you should...

Why we should start saving water as soon as possible


The planets drought is the most alarming situation nowadays. How we should treat our planet and how can we prevent the global warming to be even...

Water demand increase of 50 % estimated by 2030. We should focus more on wastewater treatment


The importance of wastewater treatment is growing. Most of the used water in the world is still not regulated, which causes major pollution.

Daily, we eat more water than we drink. Did you know it requires 15,000 litres of water to produce 1kg of meat?


If we want to keep clean water for future generations, we should also, change our eating habits. It’s important to think about the indirect...

8 important facts about drinking water we should bear in mind


Did you know that it takes on average 8 liters of drinking water to flash the toilet once? What else you did not know about water but it is very...