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Wastewater treatment and recycling in municipalities

Whether small villages, city districts or municipal facilities, such as schools or other public institutions. Our SBR wastewater treatment plants are located exactly there. Tailored to your municipal challenges. Flexible in operation. Safe in the effluent values and of course easily expandable. Our remote monitoring additionally supports operational safety. Even in urban areas with central access, our sewage treatment plants can help to relieve overloaded wastewater treatment plants and sewer systems.

AQUAMAX®: the optimal small wastewater treatment plant for every application

In this video you will learn everything about wastewater treatment systems for domestic wastewater. In cities, domestic, but also commercial and industrial wastewater is generally collected in the sewer system and treated centrally in a treatment plant. In rural areas, domestic wastewater disposal through a small wastewater treatment plant is often more economical than a central connection.
 
No matter whether multi-chamber pits or multi-tank systems, whether made of concrete or plastic, whether for individual or group solutions: The AQUAMAX® is the optimal small wastewater treatment plant for every area of application - effective, innovative and future-proof. Up to 99% cleaning performance in only 8 hours!

Practical Report University

Der Zauber von Indien

It is boiling hot. Relative humidity: practically 100 percent. I still detect the lead tasting dust of the road on my tongue as, on the first day in Chennai, originally called Madras, I cross over the road, in order to climb into the car which is meant to take me to my actual destination. I still detect the biting prickling in my nose as – hours later and 40 km further on – I leave my car again – in the middle of the tiny village of Kancheepuram. I want to go by foot for the last couple of hundred metres to the destination. I want to understand where I am. Frankly, I want, as with every journey, to take in the whole country, the whole gigantic sub-continent with over a billion people, all in one go. My two companions, Sanjib and Singaram from the Indian ATB partner, Mother Indus Aqua Solutions, leave me to it. Although their disbelieving glance tells me clearly: “Forget it!” 

The heat is killing. All of a sudden. And it multiplies in perception what should better be divided: the noise of countless mopeds, the stink of the piles of garbage which are piled at the edge of the road, the many naked feet, which – pathetic and maltreated – certainly have never possessed a pair of shoes to call their own.

On a building site I see Indian women dressed in colourful saris who, driven on by a foreman, balance on their heads heaps of sand, cement and brick, heavy as lead, up to the next issuer of orders. And already the next pile of garbage: in the hope of rich booty a herd of cows stick their nostrils into the evil morass. In the middle of this, again a colourful sari – this time searching for something or other. Here it seems many are searching. And be it only after good Karma. Incredible India. On we go. Several cows later and richer for several succinct sensual stimuli, a large white arched gateway, similar to that of the Maharadja Palace from the monumental spectacle “The Tiger from Eshnapur” or “The Indian Monument” suddenly appears from nowhere. The text written over the palace archway informs me, that I have arrived: the SRM Institute for Science and Technology. And: that India combines all opposites in itself, that here the paradise can lie directly alongside purgatory. “For every single revelation which one meets concerning this gigantic and complicated country, the opposite can always also apply”, so says Joan Robinson from the University of Cambridge about this phenomenon. 

Behind the archway begins what the western world actually only knows under the synonym “Bangalore”: the intelligence of India. Enormously motivated young people, mostly from the middle class – but nevertheless amounting to between 200 or 300 million people – studying at the 160 universities, 30 university equivalent establishments and 10 institutions of national significance, help to create the Indian boom. In this university, for example, there are faculties for all forms of natural science, engineering and economics. And: medicine. No wonder that the first AQUAMAX® wastewater treatment plant in India was, of all things, installed here. Ultimately, education and environmental awareness go together, they say. “This is the wrong way”, is the response as I ask on the campus which way leads to the wastewater treatment plant. In his best Indian English which, however, is barely made for my ear, an old man explains to me in a complicated manner that I must go around outside: back through the white archway, then right, next road right again and then straight on. The road turns out to be a sand path, the sand path to be a trap: never tread into an Indian puddle, it can be a metre deep. And the trousers ruined up to the hip. On the left, once again a building site with toiling women; on the right, again mountains of garbage, this time with children playing in it. Behind a group of simple huts, cobbled together out of wooden pegs and dried palm leaves. As I learned later, here live the building workers with their families.
In front of a multi-story building shell at the end of the sand path I recognised my companions who were waving in panic. Apparently I had taken longer than I should have. My wish to get to learn India in one go had somewhat deepened the wrinkles in their faces and had dulled the expression in their eyes. However, still friendly, “Do you like India?” “Yes, I do. It’s incredible.” Outside the monsoon season, that is between January and September, the water supplies in this region regularly come to a standstill. Precipitation and high temperatures here often allow more than just the plant world to collapse. The SRM University, a private institute with – for Indian conditions – not in- significant study fees, wanted to be protected against this and, even in dry periods, did not want to be without gorgeous displays of flowers and luscious green lawns. Only: practicable concepts for this are rare, worldwide.

The company entrusted with the task, Mother Indus Aqua Solutions, from Chennai, was nevertheless, successful: 

in 2006, in collaboration with ATB, the company erected a pilot plant on the campus of the university, which was to have model character as a solution to India’s water problem. The plant, an AQUAMAX® XXLS1-600, daily treats up to 90 cubic metres of wastewater which, following treatment, is held temporarily in an intermediate tank with a volume of ca. 60 cubic metres. An AQUAMAX® BLUE UV disinfection system using
a throughflow volume of 10 cubic metres per hour disinfects this temporarily stored water continuously in circulating operation. If the water is now taken for the watering of the comprehensive garden and green areas, it is again disinfected during output. A concept which adds up, as both the daily practice and also continuous examination of the discharge values by independent laboratories prove.

In the Hindu Kapaleeshwarar temple, the theme of India's water plays a major role: It is believed to be the original source of life and ultimately brings souls to the place of everlasting life. Somewhere in between, the handling of water appears to be more pragmatic: Indians cook and wash them - selves only with water. And drink it. However, considerably less than the largest part of the remaining world. The per head consumption of drinking water here lies at about 25 litres per day. In comparison: a United States American requires ca. 380 litres and a German, for all that, still 126 litres per day. 

But the economic boom does not really indulge the Indians with this small amount: 

The groundwater is sinking rapidly with the industrialisation. Wells are drying out and what remains of the precious moisture is often certainly no longer precious as it is extremely loaded and polluted. Inter alia, polluted through the fact that over 80% of the population have to carry out their most important business without access to sanitary facilities. 800 million people! In addition, surveys show that approximately only a fifth of the total wastewater – at least in cities of upwards of 50,000 inhabitants – is collected in sewer systems and is fed to some sort of wastewater treatment. Some sort! The visit to a municipal wastewater treatment plant is frightening: Circa 370 million people in this country have no access to “safe” water, was reported in India Today not so long ago. Now I also know why.

Certainly, there is a lot to be done! But a start has been made: responsible people in the whole country are aware and beginning to act; government offices and authorities have noticed the AQUAMAX® with downstream UV disinfection, the broad decentralisation of wastewater treatment is being discussed, the reuse of wastewater appears to be ecologically and economically wise.

The university project at a glance

Owner: SRM Institute for Science and Technology 

Project management & Installation: MOTHER INDUS AQUA SOLUTIONS, Chennai/Indien 

Plant technology: ATB Umwelttechnologien GmbH

Plant size: AQUAMAX® XXLS1-600 for 600 PT or 90 m3/day AQUAMAX® BLUE UV disinfection for 10 m3/h

Commissioning: 2006

Required treatment performance: COD < 100 mg/l / BOD5 < 30 mg/l / SS < 30 mg/l

Effluent values: COD < 48 mg/l / BOD5 < 6 mg/l / SS < 20 mg/l

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