Anox Kaldnes

Name

Anox Kaldnes

Legal name

Veolia Water Technologies AB – AnoxKaldnes

Website

https://anoxkaldnes.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Biological Wastewater Treatment Technology

NAICS

Chemical Manufacturing (325)

SIC

Miscellaneous Chemical Products (2890)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industry

Water Treatment & Process Specialty Chemicals (IMAEABAN)

Keywords

• Biological wastewater treatment
• Moving bed biofilm reactor
• Municipal water treatment
• Industrial wastewater solutions
• Biofilm carrier technology

Headquarters

HQ city

Lund

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Water Treatment Equipment and Systems: Design, supply, and implementation of biological wastewater treatment systems including MBBR reactors, carriers, and associated equipment
2. Laboratory and Testing Services: Accredited laboratory services including biodegradation testing, toxicity testing, biological activity testing, and diagnostic microscopy for wastewater characterization
3. Education and Training: Courses on microbiology and wastewater treatment including basic courses (900+ participants), advanced troubleshooting courses, and customized on-site training
4. Process Support Services: Specialist process support including troubleshooting, optimization, preventive support through service contracts for MBBR facilities
5. Pilot Testing Equipment Rental: Pilot equipment rental combined with on-site startup assistance, process monitoring and remote support

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

AnoxKaldnes designs, supplies, and supports biological wastewater treatment systems built around its proprietary Moving Bed Biofilm Reactor (MBBR) technology. Its offerings include a family of MBBR-based products (AnoxKaldnes MBBR, Cella, ANITA Mox, Anoxthane, BAS, Biostyr Duo, eXeno, Hybas, Tracer, Z-MBBR) that use plastic biofilm carriers for municipal and industrial water purification. The company complements these products with accredited laboratory testing, on-site pilot rentals, specialist process support contracts, and operator/engineer training, delivered globally via the Veolia Water Technologies network.

Product overview

Anox Kaldnes is a world-leading provider of biological water purification solutions for industries and municipalities, offering a comprehensive portfolio of MBBR-based technologies and related services. The core technology platform centers on Moving Bed Biofilm Reactor (MBBR) systems, with specialized variants including Cella™ (renewable biomass biofilm), ANITA™ Mox (deammonification), Anoxthane™ (anaerobic), Hybas™ (IFAS hybrid), Z-MBBR (controlled biofilm thickness), Tracer™ (complex compounds), and Biostyr™ Duo (combined BAF-MBBR). Supporting services include laboratory testing, pilot studies, education/training, and specialist process support across municipal and industrial applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Cella™ Breakthrough biofilm technology leveraging MBBR principles with a new support material made from renewable biomass. All-in-one biological solution for treatment of carbon, nitrogen, and phosphorus with minimal energy consumption and compact footprint, applicable to municipal wastewater treatment.
• ANITA™ Mox Single-stage deammonification process based on MBBR technology that removes more than 90% of ammonia and 75-85% of total nitrogen through partial nitritation/anammox, without external carbon source and with reduced air requirements (up to 60% lower oxygen demand vs. conventional nitrification-denitrification).
• Anoxthane™ Anaerobic MBBR technology enabling treatment of wastewater with varying COD and TSS levels. Uses AnoxK™Z carriers with controlled anaerobic biofilm growth for robust, temperature-tolerant biological treatment.
• BAS™ Biofilm Activated Sludge process combining MBBR and conventional activated sludge in an optimized configuration. Protects and enhances biological treatment by reducing organic material, minimizing sludge production, and improving settling properties.
• Biostyr™ Duo Combination of aerated biological filter (BAF) and MBBR technologies. Achieves simultaneous biological treatment and suspended solids removal in one step with the most compact footprint for carbon and nitrogen removal.
• eXeno™ MBBR-based biological wastewater treatment technology for removing micropollutants such as pharmaceuticals and industrial chemicals. Enables longer sludge retention time so slow-growing microorganisms can break down difficult compounds.
• Hybas™ IFAS (Integrated Fixed Film Activated Sludge) solution combining MBBR carriers with activated sludge for compact organic material and nitrogen removal. Enables cost-effective upgrade of existing activated sludge processes.
• AnoxKaldnes™ MBBR Moving Bed Biofilm Reactor technology where biofilm grows on suspended carriers. Compact and robust biological wastewater treatment used across municipal and industrial markets for aerobic, anoxic, and anaerobic processes.
• Tracer™ Family of specialized MBBR solutions for biological treatment of complex compounds in industrial wastewater, including glycols, cyanides, and selenium. Removes harmful substances that are difficult to treat biologically.
• Z-MBBR MBBR carriers with controlled biofilm thickness using AnoxK™Z-200 and AnoxK™Z-400 carriers. Enables predefined biofilm thickness of 200 and 400 µm respectively for specialized applications requiring high stability and performance.
• Laboratory Services Accredited laboratory services including biological batch tests, continuous bench-scale simulations, and microbial diagnostics for developing, optimizing, and troubleshooting biological wastewater treatment processes.
• Pilot Tests On-site performance testing demonstrating process and equipment performance at customer installations. Includes pilot equipment rental with startup assistance and remote process monitoring support.
• Education and Training Courses in microbiology and wastewater treatment for operators and engineers, including basic and advanced levels, customized on-site training, and microscope-based biological troubleshooting courses (e.g., Basic Microbiology course priced at 23,500 SEK per participant).
• Specialist Process Support Expert support for troubleshooting and optimization of biological treatment processes, including operational data evaluation, extended analysis programs, diagnostic microscopy, and biological batch testing, delivered via service contracts for MBBR facilities.

Quantifiable outcome

• 1,200+ treatment plants installed worldwide
• +4 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Kruger A/ScoreStrategic or Co-development Partner · 6 May 2024Danish water and wastewater treatment specialist that collaborated with AnoxKaldnes to develop and implement the world-first Cella technology at Fors A/S Svinninge plant. Joint development partnership combining Kruger's plant expertise with AnoxKaldnes' biological treatment technology.
• Fors A/ScoreStrategic or Co-development PartnerDanish utility company serving Holbæk, Lejre, and Roskilde municipalities with approximately 200,000 customers. First to deploy Cella technology at Svinninge wastewater treatment plant, demonstrating innovative biofilm technology.
• NCCcoreImplementation/ SI/ Consulting PartnerLeading Nordic construction company contracted for execution and implementation of Käppala WWTP expansion. Utilizing complex project expertise for construction and implementation of the world's largest MBBR system.
• Danish Technical University (DTU)minorOthersAcademic research collaboration for biological wastewater treatment development
• Lund Technical University (LTH)minorOthersAcademic research collaboration, ties to Lund University where the company originated
• Aalborg UniversityminorOthersAcademic research collaboration for biological wastewater treatment development
• Aarhus UniversityminorOthersAcademic research collaboration for biological wastewater treatment development
• University of QueenslandminorOthersAcademic research collaboration for biological wastewater treatment development
• University of OttawaminorOthersAcademic research collaboration for biological wastewater treatment development
• University of Rio de Janeiro (UFRJ)minorOthersAcademic research collaboration for biological wastewater treatment development
• MiDAS (Microbial Database for Activated Sludge)minorOthersCollaboration with Danish wastewater treatment plants, consultants, and Aalborg University to characterize important microorganisms in treatment plants. Extended to Sweden through AnoxKaldnes for improved process understanding and troubleshooting.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Ovivo: Canadian-headquartered designer and supplier of water and wastewater treatment systems, including biological and membrane solutions for municipal and industrial customers. Overlaps with AnoxKaldnes on biological process equipment and project delivery to utilities and industries.
• Paques: Dutch biotechnology company providing biological water and gas treatment systems, including ANAMMOX-based and biofilm reactor solutions for municipal and industrial customers. Shares the high-end biological wastewater treatment niche with AnoxKaldnes.
• Aqua-Aerobic Systems: US-based manufacturer of biological and cloth-media filtration systems for municipal and industrial wastewater, including aerobic and anoxic treatment processes. Directly competes with AnoxKaldnes on biological treatment solutions, particularly in North American tenders.
• Organica Water: Hungarian-origin specialist in fixed-film biological wastewater treatment, including MBBR and IFAS variants, plus food-chain bioreactors. Competes head-to-head with AnoxKaldnes for municipal and industrial biofilm retrofit projects globally.

Broad incumbents

• Xylem: Global water technology major offering biological treatment (Sanitaire), advanced aeration, and MBR/MF systems via its Xylem and Evoqua portfolios. Competes broadly with AnoxKaldnes for municipal and industrial wastewater tenders, though without AnoxKaldnes' pure-play MBBR specialization.
• Veolia Environnement: Parent group and broader environmental-services competitor. Beyond AnoxKaldnes' specialty MBBR niche, Veolia operates large-scale municipal concessions and competing in-house biological treatment technologies, shaping the competitive context and channel access for AnoxKaldnes.
• SUEZ Water Technologies & Solutions: France-based water services and technology incumbent operating municipal and industrial water/wastewater treatment assets and supplying treatment systems. Overlaps with AnoxKaldnes on biological treatment and project execution, though much broader in scope and footprint.
• Degrémont (SUEZ): SUEZ's water-treatment engineering brand building municipal and industrial treatment plants, including biological and tertiary nutrient-removal stages. Competes for the same large municipal EPC tenders that AnoxKaldnes targets via Käppala-style projects.

Emerging players

• Fluence Corporation: Provider of decentralized and packaged water and wastewater treatment plants using MBR and biological technologies. Targets small-to-mid municipal and industrial customers; intersects with AnoxKaldnes where biological treatment is needed at smaller scale.

Others

• Biothane (Veolia): Veolia sister company specializing in anaerobic and industrial wastewater treatment solutions. A group-level ecosystem peer rather than a direct competitor; positioned as a complementary industrial- wastewater brand within the same Veolia network as AnoxKaldnes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@anoxkaldnes
• LinkedInlinkedin.com/company/anoxkaldnes

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Anox Kaldnes