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Reflui lattieri-caseari: come e perché riutilizzarli

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EcologiaNormativeTecnologiaimpianto in acciao

Il settore lattiero-caseario è uno dei consumatori maggiori di risorse idriche nell’industria alimentare. Ne consegue una grande quantità di scarti e reflui che, nonostante siano ricchi di contenuti organici, contengono molte sostanze inquinanti (detergenti) e prima di poter essere smaltiti o riutilizzati, devono essere sottoposti a una serie di trattamenti.

Secondo gli ultimi dati dell’Unione Europea, ogni anno vengono prodotte circa 155 milioni di tonnellate di latte e, per ogni litro di latte prodotto, si hanno 2,5 litri di acque reflue.

Poiché le acque reflue lattiero-casearie contengono sia residui organici, sia detergenti, il Decreto Legislativo n152/06 associa questi reflui con quelli provenienti dal settore industriale, di conseguenza, la depurazione e il trattamento sono simili.

Innanzitutto, grazie alla loro composizione in gran parte organica, i reflui lattiero-caseari vengono trattati per recuperare le sostanze nutritive da riusare in campo agricolo o zootecnico. Le principali sostanze nutritive presenti sono due:

  • il latticello, liquido di scarto che si crea dalla separazione della panna dal latte e dopo aver ottenuto il burro;
  • il siero, liquido torbido color verde-giallastro, derivante dalla separazione della cagliata e dalla coagulazione del latte.

Il siero, a differenza del latticello, può subire due tipologie di trattamento:

  • biologico, per recuperare il lattosio e convertire gli agenti inquinanti in energia rinnovabile;
  • chimico-fisico, per recuperare le proteine grazie ad agenti coagulanti come sodio e sali di ferro.

Il trattamento dei reflui di questo settore è una vera e propria risorsa, poiché permette non solo di ridurre gli sprechi, ma si dimostra anche una soluzione alternativa valida per la produzione di energia rinnovabile. Infine, permette di reimmettere sul mercato scarti di vario tipo, creando quindi un’economia circolare, e garantire un risparmio per quanto riguarda i costi di smaltimento.

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Dairy wastewater: how to reuse them and why

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  3. Dairy wastewater: how to reuse…
EnvironmentLegislationTechnologysteel plant

The dairy sector is one of the largest consumers of water resources in the food industry. This results in a large amount of waste and wastewater which, despite being rich in organic content, contain many pollutants (detergents) and must undergo a series of treatments before they can be disposed of or reused.

According to the latest data from the European Union, about 155 million tons of milk are produced each year and, for every liter of milk produced, there are 2.5 liters of waste water.

Since dairy wastewater contains both organic residues and detergents, the Legislative Decree n.152 / 06 associates these wastewater with those coming from the industrial sector, consequently, purification and treatment are similar.

First of all, thanks to their largely organic composition, dairy wastewater is treated to recover the nutrients to be reused in agriculture or livestock. The main nutrients present are two:

  • buttermilk, liquid waste created by separating the cream from the milk and after obtaining the butter;
  • whey, a cloudy yellowish-green liquid resulting from the separation of the curd and the coagulation of the milk.

Unlike buttermilk, whey can undergo two types of treatment:

  • biological, to recover lactose and convert pollutants into renewable energy;
  • chemical-physical, to recover proteins thanks to coagulating agents such as sodium and iron salts.

The treatment of wastewater from this sector is a real resource, since it not only allows to reduce waste, but also proves to be a valid alternative solution for the production of renewable energy. Finally, it allows various types of waste to be reintroduced onto the market, thus creating a circular economy, and guaranteeing savings in terms of disposal costs.

Kleanoo Editorial Staff
Kleanoo © 2025 — Reproduction prohibited
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Dairy wastewater: how to reuse them and why

You are here:
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  2. Écologie
  3. Dairy wastewater: how to reuse…
ÉcologieRèglementsTechnologieimpianto in acciao

The dairy sector is one of the largest consumers of water resources in the food industry. This results in a large amount of waste and wastewater which, despite being rich in organic content, contain many pollutants (detergents) and must undergo a series of treatments before they can be disposed of or reused.

According to the latest data from the European Union, about 155 million tons of milk are produced each year and, for every liter of milk produced, there are 2.5 liters of waste water.

Since dairy wastewater contains both organic residues and detergents, the Legislative Decree n.152 / 06 associates these wastewater with those coming from the industrial sector, consequently, purification and treatment are similar.

First of all, thanks to their largely organic composition, dairy wastewater is treated to recover the nutrients to be reused in agriculture or livestock. The main nutrients present are two:

  • buttermilk, liquid waste created by separating the cream from the milk and after obtaining the butter;
  • whey, a cloudy yellowish-green liquid resulting from the separation of the curd and the coagulation of the milk.

Unlike buttermilk, whey can undergo two types of treatment:

  • biological, to recover lactose and convert pollutants into renewable energy;
  • chemical-physical, to recover proteins thanks to coagulating agents such as sodium and iron salts.

The treatment of wastewater from this sector is a real resource, since it not only allows to reduce waste, but also proves to be a valid alternative solution for the production of renewable energy. Finally, it allows various types of waste to be reintroduced onto the market, thus creating a circular economy, and guaranteeing savings in terms of disposal costs.

Kleanoo Editorial Staff
Kleanoo © 2025 — Reproduction prohibited
Condividi questo articolo
Share on FacebookShare on Facebook Share on XShare on X Share on LinkedInShare on LinkedIn Share on WhatsAppShare on WhatsApp

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Dairy wastewater: how to reuse them and why

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  2. Ökologie
  3. Dairy wastewater: how to reuse…
ÖkologieTechnologieVorschriftenimpianto in acciao

The dairy sector is one of the largest consumers of water resources in the food industry. This results in a large amount of waste and wastewater which, despite being rich in organic content, contain many pollutants (detergents) and must undergo a series of treatments before they can be disposed of or reused.

According to the latest data from the European Union, about 155 million tons of milk are produced each year and, for every liter of milk produced, there are 2.5 liters of waste water.

Since dairy wastewater contains both organic residues and detergents, the Legislative Decree n.152 / 06 associates these wastewater with those coming from the industrial sector, consequently, purification and treatment are similar.

First of all, thanks to their largely organic composition, dairy wastewater is treated to recover the nutrients to be reused in agriculture or livestock. The main nutrients present are two:

  • buttermilk, liquid waste created by separating the cream from the milk and after obtaining the butter;
  • whey, a cloudy yellowish-green liquid resulting from the separation of the curd and the coagulation of the milk.

Unlike buttermilk, whey can undergo two types of treatment:

  • biological, to recover lactose and convert pollutants into renewable energy;
  • chemical-physical, to recover proteins thanks to coagulating agents such as sodium and iron salts.

The treatment of wastewater from this sector is a real resource, since it not only allows to reduce waste, but also proves to be a valid alternative solution for the production of renewable energy. Finally, it allows various types of waste to be reintroduced onto the market, thus creating a circular economy, and guaranteeing savings in terms of disposal costs.

Kleanoo Editorial Staff
Kleanoo © 2025 — Reproduction prohibited
Condividi questo articolo
Share on FacebookShare on Facebook Share on XShare on X Share on LinkedInShare on LinkedIn Share on WhatsAppShare on WhatsApp

Leggi anche

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26 July 2022
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Dairy wastewater: how to reuse them and why

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  2. Legislação
  3. Dairy wastewater: how to reuse…
LegislaçãoMeio Ambiente/SustentabilidadeTecnologiaimpianto in acciao

The dairy sector is one of the largest consumers of water resources in the food industry. This results in a large amount of waste and wastewater which, despite being rich in organic content, contain many pollutants (detergents) and must undergo a series of treatments before they can be disposed of or reused.

According to the latest data from the European Union, about 155 million tons of milk are produced each year and, for every liter of milk produced, there are 2.5 liters of waste water.

Since dairy wastewater contains both organic residues and detergents, the Legislative Decree n.152 / 06 associates these wastewater with those coming from the industrial sector, consequently, purification and treatment are similar.

First of all, thanks to their largely organic composition, dairy wastewater is treated to recover the nutrients to be reused in agriculture or livestock. The main nutrients present are two:

  • buttermilk, liquid waste created by separating the cream from the milk and after obtaining the butter;
  • whey, a cloudy yellowish-green liquid resulting from the separation of the curd and the coagulation of the milk.

Unlike buttermilk, whey can undergo two types of treatment:

  • biological, to recover lactose and convert pollutants into renewable energy;
  • chemical-physical, to recover proteins thanks to coagulating agents such as sodium and iron salts.

The treatment of wastewater from this sector is a real resource, since it not only allows to reduce waste, but also proves to be a valid alternative solution for the production of renewable energy. Finally, it allows various types of waste to be reintroduced onto the market, thus creating a circular economy, and guaranteeing savings in terms of disposal costs.

Kleanoo Editorial Staff
Kleanoo © 2025 — Reproduction prohibited
Condividi questo articolo
Share on FacebookShare on Facebook Share on XShare on X Share on LinkedInShare on LinkedIn Share on WhatsAppShare on WhatsApp

Leggi anche

trattamento acque reflue
Treat wastewater to produce green hydrogen
26 July 2022
impianto depurazione reflui
Digital solutions for the water cycle
12 July 2022
eeconic mercedes benz
IFAT 2022: Mercedes’ eEconic unveiled
28 June 2022
raccolta differenziata carta e cartone
India supports the development of technological solutions for waste management
21 June 2022
silos di acque reflue
Veritas returnes 99.6% of purified water to the environment
14 June 2022
irrigazione in agricoltura
Purified wastewater to fight drought
7 June 2022

Dairy wastewater: how to reuse them and why

You are here:
  1. Home
  2. Ecología
  3. Dairy wastewater: how to reuse…
EcologíaNormasTecnologíaimpianto in acciao

The dairy sector is one of the largest consumers of water resources in the food industry. This results in a large amount of waste and wastewater which, despite being rich in organic content, contain many pollutants (detergents) and must undergo a series of treatments before they can be disposed of or reused.

According to the latest data from the European Union, about 155 million tons of milk are produced each year and, for every liter of milk produced, there are 2.5 liters of waste water.

Since dairy wastewater contains both organic residues and detergents, the Legislative Decree n.152 / 06 associates these wastewater with those coming from the industrial sector, consequently, purification and treatment are similar.

First of all, thanks to their largely organic composition, dairy wastewater is treated to recover the nutrients to be reused in agriculture or livestock. The main nutrients present are two:

  • buttermilk, liquid waste created by separating the cream from the milk and after obtaining the butter;
  • whey, a cloudy yellowish-green liquid resulting from the separation of the curd and the coagulation of the milk.

Unlike buttermilk, whey can undergo two types of treatment:

  • biological, to recover lactose and convert pollutants into renewable energy;
  • chemical-physical, to recover proteins thanks to coagulating agents such as sodium and iron salts.

The treatment of wastewater from this sector is a real resource, since it not only allows to reduce waste, but also proves to be a valid alternative solution for the production of renewable energy. Finally, it allows various types of waste to be reintroduced onto the market, thus creating a circular economy, and guaranteeing savings in terms of disposal costs.

Kleanoo Editorial Staff
Kleanoo © 2025 — Reproduction prohibited
Condividi questo articolo
Share on FacebookShare on Facebook Share on XShare on X Share on LinkedInShare on LinkedIn Share on WhatsAppShare on WhatsApp

Leggi anche

trattamento acque reflue
Treat wastewater to produce green hydrogen
26 July 2022
impianto depurazione reflui
Digital solutions for the water cycle
12 July 2022
eeconic mercedes benz
IFAT 2022: Mercedes’ eEconic unveiled
28 June 2022
raccolta differenziata carta e cartone
India supports the development of technological solutions for waste management
21 June 2022
silos di acque reflue
Veritas returnes 99.6% of purified water to the environment
14 June 2022
irrigazione in agricoltura
Purified wastewater to fight drought
7 June 2022
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