Water 4 All

Innovative Water and Energy Management

Water 4 All makes efficient water and energy management possible anywhere in the world — through innovative water treatment, wastewater treatment, biogas production, and the energy solutions that tie them together.

We take a systems-based, sustainability-driven approach to designing, building, and maintaining the critical water, wastewater, and energy infrastructure that safeguards both the planet's ecological balance and the quality of life in the communities we serve.

Water

From water treatment to wastewater reuse

We design and deliver drinking water, industrial water, and wastewater treatment technologies — from initial water preparation to the reuse of treated wastewater — backed by focused water management consulting.

Wastewater

Industrial wastewater treatment

We turn industrial wastewater into cleaner water: by analyzing the composition of the raw wastewater, we design physical, chemical, biological, and fourth-stage treatment technologies tailored to discharge limits and target water quality standards.

Energy

Lower energy demand, greater energy self-sufficiency

We analyze and optimize the energy consumption of water and wastewater treatment facilities, then increase their energy self-sufficiency through solar, hydro, and biogas-based on-site generation — for sustainable, cost-effective operation.

Biogas

Electricity and heat from organic waste and wastewater

We generate biogas from sewage sludge and agricultural and food-industry by-products, then convert it into electricity, heat, or biomethane by designing and building the digesters and biogas utilization systems that make these possible.

Our Businesses

We provide comprehensive services across water, wastewater, energy, and biogas.

Water

We design and implement drinking water, industrial water and wastewater treatment technologies — from water pre-treatment to the reuse of treated wastewater — complemented by dedicated water industry consulting.

01

Water pre-treatment and purification

We design, permit and build industrial and drinking water treatment technologies — from chemical clarification and biological treatment to reverse osmosis and the removal of micropollutants, including pharmaceutical residues via photo-oxidation technology. Where needed, we also take on service and maintenance, ensuring reliable long-term operation.

02

Reuse of treated wastewater

We favor using treated or less contaminated wastewater over drinking-water-grade sources to meet industrial and other water demands, tailored to each production process's specific water quality needs. The recovered water can be returned to irrigation, industrial processes, or even recreational watercourses — reducing water footprint.

03

Consulting

We provide end-to-end water industry consulting, from needs assessment through technological concepts to permitting and operation. Our goal is always a sustainable solution tailored to the specific site.

Wastewater

We turn industrial and municipal wastewater into cleaner water: analysing the composition of raw wastewater and designing physical, chemical, biological and fourth-stage treatment technologies around applicable discharge limits.

01

Industrial wastewater treatment

We design combined wastewater treatment solutions for the food, paper, pharmaceutical and chemical industries, powered by our in-house ContiSeq™ technology. We provide end-to-end service, from consulting to operation.

02

Fourth-stage wastewater treatment

Since 2016 we've developed our own AOP-based photo-oxidation technology with ELTE and MTA, effectively removing pharmaceutical residues. Our team is equipped to detect contaminants at microgram levels.

03

Consulting

We provide end-to-end wastewater consulting, from concept design through technological planning to permitting and operation. We always develop a sustainable solution tailored to the specific site.

Energy

We analyse and optimise the energy consumption of water and wastewater treatment facilities, then increase plants' energy self-sufficiency through solar, hydro and biogas-based in-house energy production — for sustainable, cost-effective operation.

01

Energy savings at wastewater treatment plants

We achieve significant energy savings at existing wastewater plants through technological modernization and equipment upgrades, optimising the most energy-intensive aerobic stage with our own mathematical model-based control algorithm. For larger investments, we build integrated energy-saving solutions around our in-house ContiSeq™ technology.

02

Energy production at wastewater treatment plants

We harness water's kinetic energy, solar panels and biogas alike to boost plants' energy self-sufficiency. Our in-house software adapts and optimises island-mode energy production to each plant's specific consumption.

03

Consulting

We provide end-to-end consulting, from assessing energy consumption to developing energy-saving and -production concepts. We always look for the most cost-effective, site-specific solution.

Biogas

We produce biogas from wastewater sludge, agricultural and food industry by-products, converting it into electricity and heat, or biomethane — through the design and construction of digesters and biogas utilisation systems.

01

Biogas from waste and organic by-products

We produce and purify biogas from agricultural and food industry by-products using our in-house InwaFerm digestion and two-stage BiogInwa purification technologies. The purified gas can become electricity, heat, or biomethane.

02

Biogas from wastewater

We have long experience in anaerobic reactor treatment of high-organic-content wastewater from the food, paper, pharma and chemical industries. We handle everything from reactor design to construction and servicing.

03

Biomethane

We convert purified biogas into biomethane and feed it directly into the gas grid, securing all required certificates including ISCC. A trusted partner handles sales across multiple countries.

04

Consulting

We provide end-to-end biogas consulting, from concept design through technological planning to permitting and operation. We always develop a sustainable solution tailored to the specific site.

Our Solutions

Innovative Solutions

Browse our range and discover leading-edge technologies for water, energy, and biogas treatment. Every solution is backed by decades of industry experience.

Our Results and Featured Projects

What we conceive as a systemtakes shape in real, operating facilities.The figures and projects below arethe tangible results of that mindset.

As of August 2026Completed projects
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Featured Projects

Water

Nyíregyháza Ipari Park8,000 m³/dayGreywater reuse
Mercedes-Benz Hungary1,200 m³/dayWater pre-treatment and treatment
Akasztó2,400 m³/dayWater pre-treatment and treatment

Energy

Kisköre>20%Energy savings
Alföldvíz>30%Energy savings
Alföldvíz>30%Energy savings

Biogas

Kaposvár3,000 Nm³/dayBiogas plant
Seini4,160 Nm³/dayBiogas plant
EDF-Démász10,000 Nm³/dayBiogas plant

Wastewater

Hungrana7,800 m³/dayIndustrial wastewater treatment plant
MOL – TVK7,200 m³/dayIndustrial wastewater treatment technology
Hamburger Hungária19,200 m³/dayIndustrial wastewater treatment plant

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