Wastewater "gets beautiful" with ultrasound treatment
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:10 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:36 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:15 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:05 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 10:51 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:42 AM
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Web Content Article · written-by LUCIA ALGISI on-date Oct 18, 2022 11:01 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 18, 2022 11:17 AM
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 14, 2022 10:38 AM
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Web Content Article · written-by LUCIA ALGISI on-date Oct 14, 2022 9:15 AM
SI Sustainable management of water resources Climate change, population growth and increasing exploitation of water resources are progressively deteriorating the natural hydrogeological...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Oct 14, 2022 9:13 AM
SI Transition to a Circular Economy The current model of linear growth, on which the global economy is based, involves the exploitation and loss of natural and economic resources, generating...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 28, 2022 2:26 PM
We have been confirmed as one of the companies most committed to promoting diversity, inclusion and people development. This has been certified once again by Refinitiv’s “Diversity & Inclusion...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 28, 2022 2:11 PM
We have been confirmed as one of the companies most committed to promoting diversity, inclusion and people development. This has been certified once again by Refinitiv’s “Diversity & Inclusion...
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Web Content Article · written-by Davide Donnarumma on-date Sep 15, 2022 5:08 PM
2022-09-28 In the international ranking of Refinitiv’s 2022 “Diversity & Inclusion Index”, the Group is included in the TOP10 globally, becoming the world’s leading multi-utility and the top...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 27, 2022 4:48 PM
2022-09-28 These two Emilia-Romagna companies have signed a three-year agreement to launch circular economy initiatives and boost sorted waste collection and recovery CIRFOOD, a leading Italian...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Aug 31, 2023 10:33 AM
Gruppo Hera is resuming its in-person environmental education programs for schools. Teachers can now sign up for free projects focused on environmental education and scientific dissemination. The...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 16, 2022 4:23 PM
SI The Hera Group, as part of its implementation of procedures and mechanisms for managing and controlling tax risk (Tax Control Framework), has defined and formalised its own Tax Strategy. The...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 15, 2022 5:20 PM
No Smart working After the launching of the first pilot project in 2017, smart working was gradually extended to the corporate population until reaching over 1,500 people in 2019. The experience we...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Aug 31, 2023 10:31 AM
Human resources are one of the key elements for the growth and development of a company and the territories in which it operates. The Hera Group knows this well, and with more than 9,000 employees,...
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Web Content Article · written-by Palvi Andrea Tonziello on-date Sep 12, 2022 11:53 AM
No Our Crisis Management model Our Crisis Management policy establishes the guidelines and operational processes for the management of crisis events. In line with the best practices of the sector,...
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The ultrasound hydrolysis system, installed in the Forlì treatment plant, makes the life cycle of wastewater sludge circular. The result: less sludge to dispose of, and more biogas produced.
Wastewater is all the water that, after having been used in domestic, agricultural, and industrial activities, must be treated before being returned to the environment.
This water contains a solid part – sludge – which is removed during treatment. But, in addition to giving a new life to wastewater, can we also make the sludge life cycle circular, by reducing the amount to be disposed of?
Back in 2017, we started research to answer these questions, and, once again, we decided to invest in new technologies to lighten the impact on the environment and be more virtuous. In November 2019, our efforts became a reality, thanks to the ultrasound sludge hydrolysis system, installed at the Forlì treatment plant.
In this system, part of the sludge from the wastewater treatment process is subjected to sound waves. The waves, in contact with the liquid matrix to be treated, biodegrade more volatile solids, increasing biogas production, and reducing the final dry matter in the sludge. All this makes it possible to significantly reduce the volume of sludge to be disposed of and opens up new scenarios for the use of the biogas obtained thanks to the ultrasound system.
During 2020 the initial results will be reported and we look forward to sharing the successes of this new adventure with you.
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