News
Micr’Eau distributor of GEH in Chile
As part of its arsenic treatment needs, Micr’Eau Chile imports and stocks several dozen tons of GEH filter media in Santiago and northern Chile to serve its mining and water concession customers.
This GEH product is required for the treatment of arsenic-contaminated drinking water, but also for industrial water and contaminated soil.
Micr’Eau has been a leader in these sectors in France and Chile for over a decade.
A turnkey project to measure and flare biogas in Chile
At the end of 2022, the Micr’Eau group delivered and installed a turnkey package including a 1500 Nm3/h Hofstetter flare and a biogas measuring container (by Endress Hauser) on the Yesca landfill (Rancagua region near Santiago de Chile) for the Veolia Chile group, International leader in urban solid waste management.
You can visit the project in 3D version here and discover each component of our supply. Micr’Eau worked on this project with its Chilean subsidiary which carried out the local part (civil engineering, electricity, assembly of skid flaring and measurement) in less than 5 months.
After-Sales Service for anaerobic digestion plants
For 20 years, Micr’Eau has been building and installing gasometers and biogas flares (more than 100 references in France and internationally).
With this experience, it is also at the head of about twenty audit, technical assistance, maintenance of flaring and biogas storage units in France, Benelux and South America with the largest companies in the world: SIAAP in Paris, AySA in Buenos Aires but also with major operators in the world of water and waste such as Veolia, Suez, Vinci, Urbaser.
Do not hesitate to contact us to assist you in your approach to safety or upgrading on your methanization sites of sludge from wastewater treatment plants or biogas production on landfill or waste recovery sites
Our activities in the sale of filter media for drinking water
The Micr’Eau group has experience in more than one hundred arsenic treatment plant construction and maintenance sites carried out over the past fifteen years in France, Europe and South America.
We have deployed the Arsepur process adsorption filtration to capture arsenic using filter media such as GEH or Bayoxide, but also have developed service activities around the evacuation of saturated media and the installation of new media in France as in Chile with major accounts such as Saur, the SDEA or Aguas Andinas.
We are also available to smaller entities (communities) through our local networks of installers and regional partners. Finally, we ensure the supply of other filter media: activated alumina, mangagran and pyrolox for the treatment of fluorine, iron and manganese from our stocks in the Paris region and northern Chile.
In 2022, we supplied more than 300 T of media to our ten regular customers in drinking water, mineral water or industry.
Our activities in the mining sector in Chile
The Micr’Eau group has two subsidiaries in Chile, one linked to the construction of its drinking water and biogas units, Micr’Eau-AEC, and a second company, ABM, linked to services and in particular to mining companies.
As part of these consulting and support missions, ABM is currently carrying out an audit for the Canadian company Teck, copper producer on the Quebrada Blanca 2 site at 4500 m altitude in northern Chile (near the Bolivian border) to improve the operation and maintenance of the drinking water treatment unit supplying the camp of more than 5000 miners.
Other studies and technical and logistical support projects are being set up, in particular with the companies Cobre y Metales (catodo verde project) and the lithium group SQM near Antofagasta.
Micr’Eau obtains the label of the Axelera competitiveness cluster
Micr’Eau has just been labeled within the Axelera competitiveness pole, one of the largest in France (based in Lyon); it brings together several hundred companies (large groups, mid-caps and SMEs) whose activities are chemicals and the environment as well as the desire to expand internationally.
Our ambition by joining this cluster is to promote the development of our biogas activities in France and internationally, particularly in the field of gas treatment from landfills.
Through the CH4 booster technology development project (enrichment of landfill biogas with CH4), Micr’Eau applied for an Inov 10 program funded by BPI and Ademe, supported by Axelera’s technological experts, including IFP ENR and Suez.
Mic’Eau awarded a FASEP low-carbon project
Micr’Eau associated with H2SYS, a specialist in green hydrogen (autonomous electric generator) is one of the 6 winners of the FASEP Low Carbon call for projects. Its €500,000 project for the French part will take place in northern Chile with ENAMI, under the Ministry of Mines, to promote green energy among medium-sized mines. Locally, Micr’Eau will make its Franco-Chilean teams and its partners Cobre y Metales.
The Micr’Eau teams welcomed the Minister in charge of Foreign Trade, Mr. Olivier Becht at the company’s premises to discuss this project.
Series of biogas modernization and after-sales contracts in France and Chile
Micr’Eau and its Chilean subsidiaries AEC and ABM are carrying out several biogas projects at the end of 2022 with its loyal customers Urbaser (European leader in the treatment of household waste by methanization), Veolia Haut de France, Tereos (world leader in sugar), Aguas Andinas (Veolia Water)
These operations concern the complete renovation of gasometers, flares or after-sales service and expertise contracts at the request of its Franco-Chilean customers.
The Micr’Eau group thus confirms its expertise in the value chain of the production and operation of the biogas sector and can therefore strengthen its qualified technicians and engineers in our engineering, maintenance and operation of biomethane units. Above Trebal/Mapocho site (Santiago de Chile: WWTP of 4 million inhabitants operated by the Veolia group)
Andes Bio Medio wins contract with mining group Teck
ABM (Andes Bio Medio) wins a technical expertise contract with the Canadian mining group Teck in Chile on the Quebrada Blanca 2 site
On this copper mine where the largest mining investment in South America of the decade was made ($ 5 billion) to extract and produce copper at 4500m altitude, the Canadian group Teck has entrusted an expertise on water to ABM our subsidiary services in Chile to determine the best possible maintenance on its drinking water units (150 m3 / h including iron / manganese treatment, arsenic treatment and reverse osmosis followed by remineralization).
Thanks to our geographical location in the north of the country (Antofagasta region), ABM is ideally placed to serve its mining customers (Lithium, Copper). Above is the mining camp of its Chilean partner Cobre y Metales from where ABM operates.
Micr’Eau wins the tender for the modernisation of the biogas flares at the Talagante wastewater treatment plant in Chile
Micr’Eau-AEC wins the tender launched by Aguas Andinas for the modernization of the biogas flaring line of the Talagante wastewater treatment plant (250,000 eq Hab); this file includes the installation of a new generation flare and the safety of the existing line. This turnkey project of about 180,000 euros represents 4 to 5 months of construction for our Franco-Chilean teams.
Micr’Eau carries out the factory inspection of its largest flare project with its partner Hofstetter
In the coming weeks, Micr’Eau is due to deliver an important project for the Veolia group in Chile: the supply of a flare and a measurement line for gases entering the combustion sector such as CH4 and CO2 in order to benefit from the Kyoto Protocol tariff, reserved for developing countries.
This project of more than 6 months carried out between the France, the Netherlands and Chile represents a value of several hundred hours of engineering and manufacturing follow-up.
Above is the base of the flare and its biogas compressors in the plant control phase, before its departure to Chile for the waste treatment and storage unit in the Rancagua region (500,000 inhabitants served operated by Veolia’s waste subsidiary)
Cluses: a new biogas storage operation on a digester for the Suez group
Micr’Eau completes the installation of a gasometer on the digestion unit of the Cluses wastewater treatment plant in the Alps, managed by the Suez group. This is the second project this year for this type of work after the construction site in the east in Benfeld.
The great advantage of this storage technology is the economy of civil engineering and the reduced footprint for the builder of the wastewater treatment plant. Our teams have already installed a dozen of these storage units around the France for urban, industrial and agricultural sites.
ABM wins a technology competition in arsenic treatment
ABM, our services subsidiary in Chile wins a major R&D tender with ANID on arsenic treatment applications in the environmental sector.
This technological competition launched with a hundred Chilean SMEs allowed our company Andes Bio Medio to be selected among fifteen winners to develop its know-how in arsenic treatment applied to different sectors of the environment:
drinking water, wastewater and treatment of contaminated soils.
With a budget of about 150,000 euros, we will eventually be able to deploy pilots for our water or mining concession customers to better treat their water or waste needs. Above the arsenic station of Antofagasta, one of the potential sites of our experiment
A new gasometer for the Suez Group
Veolia Chile entrusts Micr’Eau with a €630,000 biogas treatment contract in Rancagua
This will involve measuring and burning excess biogas (CH4 and CO2) from household waste operated by Veolia at one of the largest landfills in Chile (300 to 400,000 inhabitants near Santiago).
This project will be carried out on the basis of the know-how of our long-standing partner Hofstetter, one of the technological precursors on the Kyoto Protocol to reduce greenhouse gas emissions.
Above 3D view of the future project
Supply of filtering media for water treatment
Micr’Eau has delivered several tens of tons of filtering media to its French and international customers over the past two months, such as:
- 20 T of GEH to treat arsenic in Chile
- 4T of Bayoxide E33 to eliminate arsenic for an agri-food manufacturer in France
- 10 T of Mangagran to treat iron and manganese in Tunisia
- 10 T of activated alumina at the SAURgroup in France for its drinking water units.
Installation of 2 gasholders for Suez in Benfeld
Micr’Eau’s teams carried out turnkey installation of two Sattler DMGS TM gasometers on post digesters as part of the modernization of the wastewater treatment plant financed by the SDEA in Alsace.
Arsenic treatment in the Atacama Desert
Micr’Eau, holder of a €621,000 FASEP project co-financed by DG Treasury in Chile, is currently on a mission to the Salar de Atacama to install two drinking water treatment units eliminating arsenic. These stations located in Toconao and Socaire will discharge 400 and 200m3/d respectively and will be able to treat up to 250 ppb of arsenic.
Terzeo: a first in arsenic decontamination on polluted soils
Micr’Eau, with its experience in arsenic treatment by adsorption filtration, has just signed a contract to clean up arsenic-contaminated soils with Terzeo (a subsidiary of the Clamens construction and waste group).
This ambitious project should make it possible to clean up an industrial zone in Ile de France and to continue the treatment of arsenic in a second phase concerning the industrial effluents of the same customer.
Did you know this? Micr’Eau can maintain your biogas works in France and abroad
Lille les Marquette Plant
Micr’Eau offers its services in terms of management of storage units and biogas flaring both on the brands it distributes in France and internationally such as Sattler and Hofstetter; but also it also ensures the follow-up and repair of equipment of colleagues who have disappeared from the market such as BSDV and VSO.
This is evidenced by its maintenance and operation contracts with Veolia in Brussels or Lille; or with Suez in Santiago de Chile, Versailles or Toulouse. Our French or Chilean teams (with AEC and ABM) are at your service and in a very short time to give you assistance on these biogas works so much in demand.
Micr’Eau supplies 28 T of GEH at one of Chile’s largest arsenic treatment plants
Micr’Eau has won with the water operator ESVAL (Valparaiso region) a public call for the supply of filtering media for arsenic treatment and the associated service (removal of the saturated media Bayoxide; installation of the new GEH and the filter underlay).
This contract will be executed during the November-December period with the support of our two Chilean subsidiaries AEC and ABM, dedicated to construction and environmental services.
The Punta Piedra station treats 7200m3/d of drinking water to supply the Serena and Coquimbo, two cities located 500 km north of Santiago de Chile.
Micr’Eau installs 6 biogas flares with a flow of 3600 Nm3/h at SIAAP (Paris) for Suez France
As part of the largest biomethane recovery market in France (+€200 million market), Micr’Eau participated this autumn in the installation of 6 Hofstetter flares with a 3600 Nm3/h biogas burning capacity. This delivery of key equipment for the biogas sector designed by the Suez group on behalf of SIAAP on the Achères wastewater treatment plant (8 million equivalent inhabitants) is part of the services provided by our company in France and abroad.
Latin America: a good year for gasholders
Micr’Eau had a successful year internationally in Latin America thanks to its sales of gasholders in Chile, Argentina and Mexico.
The first series of 3 gasholders is being installed in Buenos Aires for the AYSA water board (+5000 people).
The next ones will follow this autumn with Mapocho/Aguas Andinas to equip the capital Santiago de Chile, and in Mexico with Suez from Mexico City to Chihuahua

Micr’Eau deploys in the segment of gas holders and flares in the industrial sector
- Pronal (compact gasometer in container for an industrial sector resulting from R&D)
- Smurfit Kappa (dismantling of an Easter storer, followed by a mobile unit and a gasometer in container)
- Tereos (design and supply of a flare for a sugar site located in the Hauts de France)

Micreau completes the renovation of the 5000m3 gasometer for GRT GAZ in Alfortville

Micr’Eau, leader in France on specialty filtering media
Each in 3 different areas: hospital waters, municipal waters and mineral waters. In total about thirty tons of media GEH (iron oxide) and Actiguard (activated alumina) delivered this summer.
Micr’Eau cooperates with the CNRS
Micreau, thanks to the support of the “Find an Expert” service of the CNRS, has signed a technical cooperation agreement with the Institute of Chemistry of Clermont-Ferrand, a research laboratory of the CNRS and the University Clermont Auvergne and Sigma Clermont, to characterize the adsorption power of filter media applied in the elimination of arsenic.
With a very important tooling and a strong competence in the field of adsorbent media, this laboratory should allow Micreau to strengthen its technological knowledge in this market segment applied to drinking water but also to industrial and mining effluents.
To learn more about this collaboration, watch the joint video between the leader of Micreau and Mr. Claude Forano, professor at the University clermont Auvergne, which was presented on June 25, 2021 by the team of the “Find an Expert” service of the CNRS as part of the event “Connexion Days” organized by the LAB’O village by CA , crédit Agricole Centre Loire, the technopole and the metropolis of Orléans.
Micr’Eau wins new biogas projects
Micr’Eau starts biggest arsenic contract in Santiago, Chile
Micr’Eau has started a GEH media change project in Quilicura, one of Chile’s largest drinking water stations (540m3/h) treating arsenic.
Supply of filter media in France and internationally
In the first half of the year, it delivered more than 50 tons of media on the French market and in Chile to its customers such as Saur, Air Eau Système , SDEA (67), RLV (63) in the arsenic market as well as that of iron and manganese or fluorine.
In Chile, despite the Covid crisis, a 40-foot container for 20 tons of GEH is expected in the coming weeks to supply its municipal and industrial customers such as Wes Chile, the San Pedro d'Atacama RP Or Toconao and Chile's private water dealers.
Biogaz Mexico and Argentina
Micr'Eau as part of its international development has secured more than 350,000 euros in contracts in Latin America with a contract for Suez de Mexico for the Chihuahua treatment plant where it will supply a gasometer that stores 2650 m3 of biogas; as well as for the main Buenos Aires station of Barros Sur Oeste for 3 gasometers of 1400m3 of capacity.
These projects are being manufactured in Europe and will be delivered this spring by our teams.
FASEP in Chile
Micr'Eau launched its FASEP project in Chile this winter to bring all its technical expertise on the ability of isolated sites in the arsenic-contaminated Antofagasta region, such as below in Toconao and Socaire at an altitude of 3,500m; In addition, in this project Micr'Eau will develop services to take over saturated media to regenerate them and give them a second life, thus contributing to the improvement of the environmental environment on soil pollution and thus bringing an operating economy to the indigenous communities it will manage in the Salar of Atacama. This project is planned to take place in the year 2021 and will occupy a dozen people in France and Chile. As a reminder, this project is financed by France to the tune of 521,000 euros as part of the programme to relaunch SMEs from the environment sector.
A mega contract for Micr’Eau in Chile
This project is established for 3 years and concerns 5 adsorption filtration treatment plants in the capital operated by Aguas Andinas: Quilicura antigua y nueva, San Antonio, Lampa, lo Pinto.
With the support of its Chilean mining services partner, Cobre Y metales (80 people), Micr’Eau and its subsidiary AEC will have to manage the change of more than 300 T of GEH-type adsorbant media saturated with arsenic during drinking water filtration. This new mega-reference is in addition to the 80 installations already followed by the group around the world.
Micr’Eau benefits from recovery plan
Micr’Eau distributes GEH filter media in Chile
Fasep Chile Signing Ceremony
The project will be to build two arsenic processing units and a saturated media regeneration centre to serve industrial and municipal customers in northern Chile.
This signing ceremony was held at the French Ambassador’s house in Santiago in the presence of the Economic Mission and the elected representatives of the Northern Region as well as the President of the Micr’Eau group Pascal Guasp

A 5000m3 turnkey gasometer project for GRT Gas
Cooperation with Eramet in Argentina at the Salta mining site
Biogas: Micr’Eau’s know-how is exported to Argentina
Assembly of 2 gasometers for Veolia in Ariège
Fasep project in Chile for arsenated waste in the Antofagasta region
Micr’Eau is entrusted with the provision of filter media for the treatment of arsenic by SAUR
5 .5 Tons of media made in Germany specifically for the SAUR group which manages one of the largest parks of water treatment plants eliminating arsenic.
Here is the new challenge of Micr’Eau, which for the sixth time in recent years supplies saUR with filter media throughout the French territory as:
- Eastern France
- Sologne
- Center (Creuse)


Micr’Eau wins the tender for the maintenance of the 5 flares at the Achères site operated by SIAAP
This tender won for 4 years confirms the logic of our company to deploy in the supply, installation and monitoring of flares after the gain of 6 new flares of 3600 Nm3/h awarded by the Suez group in 2019 to the Hofstetter-Micreau group for its Biogas sector on the same site. Achères is as a reminder the largest sewage treatment plant in Europe (8 Million Equivalent Inhabitants)
Micr’Eau opens its capital
Bioshell research and development program in partnership with ESCOM
A study for the supply of 2 gasometers for Suez Benfeld
Suez entrusts Micr’Eau with a preliminary study to supply two Sattler brand flexible gasometers for the Alsatian Benfeld project
Micr’Eau, with its nearly 20 years of experience with all the technical solutions developed with the Sattler group in the field of biogas storage, is entrusted by Suez France (Strasbourg agency) with detail studies of the installation of two gasometers on post digesters as part of the contract of work won by this group on behalf of the SDEA.
The objective is to size two stockers with a total volume of nearly 1000 m3 of biogas produced by the methanization of sludge from the treatment of wastewater from the Benfeld desure plant (67).
This study will result in the completion of these biogas storage works from 2021 before being injected into the grid.
Micr’Eau installs two Sattler biogas storage facilities in Brussels south
With these two units and those it manages in maintenance in Brussels North on behalf of Veolia, Micr’Eau owns all the units storing biogas in the Belgian capital.
Chile: the Micr’Eau group sets out again to conquer construction and services markets in the water and arsenic sector
After having participated in several contracts for the construction of drinking water stations in the mining (Teck Bechtel north Chile) and urban (Sembcorp / Santiago de Chile) fields totaling more than 10 million euros, Pascal Guasp and his Franco Chilean teams are now setting out to conquer markets for the operation and maintenance of water treatment units with their local partners: Cobre y Metales and Molambiente, two Chilean SMEs employing more than 200 people in the mining and community services sector .
This targets markets previously won in construction as well as industrial customers in northern Chile made up of world leaders such as Codelco (in copper) and SQM (in lithium).
Micr’Eau sets up a pilot arsenic treatment unit by GEH
As part of its distribution contract with the company Wasser Chemie, the company Micr’Eau set up in August 2020 an arsenic treatment unit in thermal waters (temperature 34 degrees) using its filter Arsepur and the GEH media produced by its partner in Germany. This standardized unit is intended to equip any community or industry having concerns about contamination with arsenic, selenium, antimony etc …
Contact us for any order of GEH in big bag of 800kg or bag of 25 KG
Micr’Eau delivers Bayoxide E33 in France to treat arsenic
This summer, Micr’Eau urgently supplied the SDEA (Syndicat des Eaux d’Alsace et de Moselle) with Bayoxide E33, an iron hydroxide approved for the treatment of arsenic in drinking water in France in order to comply with health standards set at 10 micrograms per liter for one of the 400 municipalities managed by this intercommunal syndicate.
For nearly 15 years, the Micr’Eau group has distributed several hundred tonnes of this product for around fifty customers in France and on all continents.
Consult us if necessary for a quotation in 25 kg bag or 750 kg big bag.