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MEMCO is a company based in Monterrey, Nuevo Leon, with more than 18 years in the field of solutions for water treatment. Today, we have offices in Los Cabos, Baja California Sur. Furthermore, our vision is to expand our company in Latin America. In MEMCO, we can say that we consider fundamental elements of our business management quality, service and the environment as a priority in each of our projects.




MEMCO is a Mexican company oriented towards management  of integrated water cycles, we manage the supply of solutions and innovation to all types of industry requiring water resources, we always work based on effective engineering at competitive costs and environmental awareness, we meet the needs each project our clients.




MEMCO will be a company recognized worldwide for our better use of technological processes in the pre-treatment, process water, recovery and post treatment of all types of water, our goal is the satisfaction of our customers focused on environmental responsibility and good management of water resources.


Our team of engineers with expertise and experience in the manufacture sales and after-sale in all types of plants for different industry sectors, gives us the confidence to position ourselves as leaders in design engineering for water treatment.


Values are an essential part within our company, they motivate us to achieve our vision and do the job with the highest quality and professionalism possible. In MEMCO, we look for a team committed and inspired to deliver the best of their talent so that we become leaders in water treatment.

We are leaders in using new technologies for water treatment.

Leaders in desalination of sea water in Mexico.

We are highly committed to quality in the process.

Our team is constantly thinking on innovation through each proyect.

Efficiency in the process gives us the quality in the projects.

We care about conducting an excellent environmental management.

Security and trust on our service.

Our human talent is highly qualified for their activities.

Seriousness, commitment and compliance in each project.


MEMCO addresses the complete customer satisfaction. In addition to manufacture and install equipment, provide training and ongoing training to operators to achieve optimal and successful utilization of our plants. We have maintenance policies supervised by our Support and Services Department in order to keep your plant in excellent condition. We keep in stock spare parts and consumables to respond immediately to any need.


The diversity of clients we have are products of the quality of our work , the constant effort with the highest standards of quality and service.





Water purification is the removal of contaminants from raw water to produce drinking water for human consumption or industrial use. Water filtration by means of a sand filter is use to remove suspended solids from water. The filtration media consists in silica sand, anthracite, gravel. An activated carbon filter reduces organic materials and other contaminants than can cause taste and odor problems in water. Final disinfection is made by using chlorine dosing, ozone or UV light.












Microfiltration is a physical filtration process where water is passed through a pore size membrane to separate suspended solids and microorganism. The typical particle size used for microfiltration ranges from about 0.1 to 10 μm. This process is used generally as a pretreatment of reverse osmosis systems.









Reverse osmosis is the process of forcing water from a region of high solute concentration through a semi permeable membrane to a region of low solute concentration by applying a pressure in excess of osmotic pressure. RO membranes are made of a thin film composite polyamide and rejects contaminants based on their charge and size. This water technology is capable of removing up to 99% of the dissolved solids, colloids, organics, bacteria (particles larger than 0.0001 microns. RO works with a high pressure pump, the more concentrated is the feed water the more pressure is required in the system.










Biological wastewater treatment is the conversion of biodegradable waste products from domestic, municipal or industrial sources by biological means. The treatment process consists of the following stages: Primary Treatment – It is the first stage of the treatment and is designed to remove solid objects, suspended and floating solids from raw water. Secondary (Biological) Treatment - Removes the dissolved organic matter that escapes primary treatment. This is achieved by microbes consuming the organic matter as food, and converting it to carbon dioxide, water, and energy. Tertiary Treatment - Can remove more than 99% of all the impurities from sewage, producing an effluent of almost drinking-water quality.









Reverse Osmosis is the most widely practiced desalination technology. In this technology seawater is forced against semipermeable membranes under high pressure (>700 psi). As the water permeates through the membrane the 99.5% of the dissolved salt is removed. SWRO systems are designed to keep down energy consumption using high efficient pumps, low energy membranes and energy recovery systems such as Pressure Exchanger and Turbine.









Ultrafiltration is a membrane filtration which retain suspended solids, solutes of high molecular weight, colloids, bacteria and viruses. UF membranes have a pore size between 1 - 100 nm. There are 4 configurations of UF membranes: spiral wound, plate and frame, tubular and hollow fiber. UF reduces the silt density index and removes particles that can foul reverse osmosis membranes and is frequently used to pretreat surface water, seawater and biologically treated municipal water upstream reverse osmosis.










Electrodeionization is a water purification technology that utilizes electricity to removes residual salts and ionizable aqueous species and produces up to 18 MOhm-cm resistivity water for applications including Power Generation, Pharmaceutical and Microelectronics. In this process water is passed between a positive electrode and a negative electrode. Semi permeable ion exchange membranes separate the positive and negative ions creating deionized water. EDI operates chemical free which eliminates expensive and hazardous chemicals used in ion exchange resin regenerations. EDI modules are usually used as a post treatment of RO water.







Membrane Bioreactor process is a combination of biological wastewater treatment and membrane filtration and is used for municipal and industrial wastewater treatment. Biodegradable pollution is reduced using bacteria and microorganisms. Following biological treatment, the activated-sludge is separated from the treated water by a microfiltration membrane. Membranes can be flat sheet or hollow fiber. There are two configurations: internal-submerged and external-sidestream. MBR can produce a high quality effluent to be discharged to drain, water source or to be reclaimed for irrigation.








Ion Exchange Demineralization is the process of removing mineral salts from water by using ion exchange resins. Ion exchange resins are small plastic beads that are composed of organic polymer changes and attracts charged ions. Eventually, when the resins beads are exhausted is needed to be regenerated with acid/alkaline solutions. Ion exchange produces ultrapure water.








Nanofiltration is a membrane based filtration using 1 to 10 nm pore size membranes. NF technology is used as a softening (polyvalent cation removal) in surface water and ground water. The feed pressure to NF systems generally is lower than RO systems because uses bigger pore size membranes. Typical applications of NF systems are softening, heavy metal removal and salt reduction in low dissolves solids brackish water.








Physicochemical treatment of wastewater focuses on the separation of colloidal particles, heavy metals, oil and fat and floating parts by adding coagulants and flocculants chemicals. Coagulant causes the destabilization of contaminants by the reduction of surface charges responsible of particle repulsions. Flocculants produces the agglomeration of particles that will settled and a clarified effluent is obtained.











Degasification consists in forcing air up-flow over a thin film or small drops of down-flow water. This procedure allow gases such as carbon dioxide and hydrogen sulfide to escape to the moving stream of air. The system has three main components: a packed tower, a blower and a sump. The tower is filled with a large surface area packing that breaks up the falling column of water into a thin film and small drops. The blower forces a stream of air upflow through the water and out through the vent pipe. The sump receives the degasified water and stores it for a few minutes before it is pumped to the point of use.









  • Design, Engineering and Manufacturing of water treatment systems, and recovery of effluent and industrial discharges.
  • Membrane sale, pumping equipment, instrumentation.
  • Policy maintenance and operation of water treatment systems.
  • Rent of stationary and mobile equipment.
  •  Technical advice on operation and chemical cleaning and pre-treatment.
  • Dosing of chemicals and consumables: cartridges, connectors, covers, etc..
  • Instrumentation Equipment.



Phone: (81) 1090.8754, (81) 1090.8774
Puerto Progreso 109-A

Col. La Fe.

San Nicolás de los Garza, Nuevo León

C.P. 66477. México



Cellphone: (624) 174.1735

All rights reserved. MEMCO S.A. DE C.V. 2023

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