Industrial Applications | Moinhos Ambiente

Industry is one of the largest consumers of water. Water is used in a wide variety of forms and in many different industrial activities, resulting in the need to comply with strict obligations, both in terms of water quality and in terms of its availability or quantity.

Often, the quality of water required for the industry is identical to that of human consumption, being able to admit more or less steps depending on its requirement.

The treatment of the produced effluents is also a challenge for the companies, and reuse must always be a point to be studied.

Although, in most cases, the produced effluents present pollutant loads that are much higher than domestic/urban effluents, the associated treatment technologies are similar.

To meet these needs, Moinhos Água e Ambiente develops and implements turn-key solutions, using the processes and technologies most appropriate to each industry:

  • Food industry
  • Textile industry
  • Chemical industry
  • Refineries and Petrochemicals
  • Fisheries

  • Food Industry
  • Textile Industry
  • Chemical Industry
  • Refineries and Petrochemicals
  • Fisheries

In the Food sector, Moinhos Group has worked in the most varied industries – dairy, meat, fish, fruit, cellars – in the implementation of the most varied systems:

  • Stations for pre-treatment and treatment of wastewater and stations and reuse.
  • Treatment plants to process water, using ozone, ultrafiltration and osmosis technology.
  • Water treatment of cooling towers and boilers.
  • Deodorization of condensed whey.
  • Fruit conservation through ozone technology.
  • Water treatment of fish vitrification vats.

In the first ten years of its existence, Moinhos Água e Ambiente concentrated its activity in the north of the country, at the time, strongly developed in the textile industry. In fact, there are numerous references of Moinhos in this industrial sector, in the field of water treatment necessary for the different processes and in the treatment of the respective wastewater. Moinhos Água e Ambiente was a pioneer in this industry in the development and implementation of ozone treatment technologies and solutions, both for the removal of the color characteristic of wastewater, replacing physical-chemical processes, and for its reuse for the industrial process .

In the textile sector, the following technologies are highlighted:

  • Selective separation of effluents for reuse of less contaminated water.
  • Pretreatment of effluents for discharge in municipal water mains:
    • Equalization.
    • Recirculation pump / hydro-injectors /neutralization with CO2.
  • Effluent treatment plants and reuse.
  • Biological treatment processes.
  • Oxidation with ozone.
  • Process water treatment:
    • Pre-oxidation with ozone.
    • Physical-chemical processes.
    • Filtration in sand / anthracite / activated carbon.
    • Final disinfection.
    • Decalcifiers.

Moinhos Água e Ambiente has important work carried out at the level of the chemical industry, and other industries, namely plastics, metal-mechanics or scrap metal. In these industries, treatment plants with the most varied systems are implemented, namely:

  • Physical-chemical treatments, followed by flotation or conventional/lamellar decantation.
  • Biological treatments.

Moinhos Água e Ambiente has been developing important projects in refineries in Portugal, namely at the level of:

  • Surface and bottom scraper system implemented in API tank.
  • CO2 neutralization system, through dissolution electrodes and hydro-injectors.
  • Coagulation-flocculation systems.
  • DAF (Dissolved Air Flotation) system for separating oily matter from liquid effluents.
  • Extraction system of oily matter resulting from flotation, by bridge with surface scraper, circular and reciprocating.
  • Oxidation system of sulfides and phenolic compounds, through the dissolution of oxygen and atmospheric air by electro-pumps and double-injected hydro-injectors.
  • Biological treatment systems for effluents.

Replacement waters in marine fish farms and recirculation waters in closed fish farms should be of high quality in order to maintain all biological masses healthy and with good levels of growth.

Moinhos Água e Ambiente has specific technology for this area, which combines oxidation/cracking by ozone and the extraction of particulate matter through skim.

The process unfolds in a MAOZONEtech reactor adapted for this specific purpose, where the way the ozone is applied makes all the difference. Each system is designed according to the flow rate of water to be treated, the dose of ozone to be applied and the need for air to be introduced to process the skimming.

Moinhos Água e Ambiente also designs and manufactures specific oxygen dissolution systems, adapted to the physical conditions of each particular case and according to the needs.

Moinhos counts on numerous references, in this sector, with the following purposes:

  • Oxidation of Nitrites.
  • Craking/removal of dissolved organic matter.
  • Skimming/Flotation of suspended matter.
  • Water clarification.
  • Disinfection.
  • Oxygenation.

Our projects


Moinhos Água e Ambiente

Your partner in technologies and solutions for water treatment.

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