Veolia Water Technologies

About Veolia Water Technologies

Veolia Water Technologies (dba Kruger), provides a complete range of innovative technologies and solutions to the municipal market to include water, wastewater and biosolids treatment and smart water digital services.

Combined sewer overflow contains particulate and soluble wastes from domestic sewage, industrial, and commercial wastewaters. These waste products include suspended solids, bacteria, viruses, nutrients, toxic pollutants, oil, and grease and debris, posing significant risks to receiving water quality, public health, and aquatic life.

Stormwater CSO

Kruger applies its ACTIFLO® process for high rate ballasted clarification and removal of total suspended solids and particulate biochemical oxygen demand materials during wet weather conditions. The Actiflo® effluent typically achieves higher than 90% removal, making flows easily disinfected with UV or chlorination. The Actiflo® process can be used in parallel with a conventional water treatment plant or at a satellite facility within the collection system. Offering unlimited treatment capacity, the Actiflo® process allows the elimination of overflows. Process trains can be used for primary and/or tertiary treatment during dry weather flows. The effectiveness of Actiflo® in treating wet weather flows has been proven at facilities around the world.

Biological Treatment Solutions

BIOACTIFLO™ is a process designed for treatment of stormwater and reduction of its soluble BOD. In periods of heavy rainfall, water flows entering a treatment plant may exceed its full wet weather capacity thereby preventing it from attaining the discharge quality standards required by local legislation. BioActiflo™ has been specifically designed to address this issue and provide additional biological treatment when the need arises.

It involves a biological treatment - in a pre-contact tank, polluted water (BOD) is treated by activated sludge - followed by a high-performance secondary clarification: Actiflo®. This solution helps to cut down phosphorus, 60 to 80% of soluble BOD, and 85 to 90% of total BOD. It equally helps to maintain the integrity of the main treatment plant while avoiding sludge overflows.

Kruger offers many biological solutions to help systems comply with nitrogen and phosphorus limits that are compact, robust, resource efficient, and easy-to-operate. From basic nitrification to enhanced nutrient removal, Kruger has the most comprehensive line of innovative biological treatment solutions:

BIOSTYR® BAF is a simple and innovative wastewater treatment process in a compact structure with a small footprint. Biostyr® is able to eliminate all organic (COD and BOD), nitrogenous (N-NH4 and N-NO3) and particulate compounds (TSS). The modular design of Biostyr® makes it a suitable in cases of variable load as part of the cells can be stopped and restarted quickly. Biostyr® is based on the use of light floating filling material, Biostyrene™ which consists of polystyrene beads. These beads are blocked under the ceiling of the concrete structure (the cell) which is fitted with nozzles to allow the treated water to flow out.

ANOXKALDNES™ IFAS moving bed biofilm reactor (MBBR) technology utilizes engineered biofilm carriers to provide compact and efficient wastewater treatment. In municipal wastewater, MBBR is used for BOD removal, nitrification, deammonification, and for denitrification. The MBBR carriers support a robust population of biofilm to provide treatment. They are retained in the reactor with the use of stainless steel media retention screens. Mixing of anoxic reactors is done by top-entry or submersible mixers, depending on the application. Aeration of oxic zones is accomplished using stainless steel air grids.

Kruger is a leading supplier of OXIDATION DITCH TECHNOLOGIES and offers some of the most advanced activated sludge treatment processes on the market today. Kruger's Double Ditch (D-Ditch) produces exceptional effluent quality of BOD and TSS less than 10 mg/L and NH₃-N less than 1 mg/L without the use of secondary settling tanks. Utilizing Kruger's PID technology, the D-Ditch mode of operation alternates between aerobic (nitrification) and settling phases. The D-Ditch is easily expanded and upgraded for increased nitrogen removal and capacity by either adding another ditch and operating as a Triple Ditch or adding secondary clarifiers and operating as a BIO-DENITRO™ process.

The ANITA™ MOX processes - MBBR (Moving Bed Biofilm Reactor) and Hybas (Integrated Fixed Film Activated Sludge) are single-stage deammonification technologies where greater than 90% of ammonia and 75-85% of total nitrogen can be removed. The processes accomplish this removal without the addition of an external carbon source and with considerably less energy in comparison to conventional nitrification-denitrification.


Kruger's biosolids treatment technologies focus on performance enhancement, renewable energy, beneficial reuse, and minimization.

Kruger's BIOCON™ SLUDGE DRYER operates at low temperatures allowing the process to utilize a variety of waste heat sources.

ECRUSOR™ acts as digestor preparation turning waste facilities into resource energy.

HYDREX™ chemicals for mitigating struvite accumulation.

PFAS Removal

PFAS is water-soluble and can be prevalent in ground waters, surface water, wastewater treatment plant discharges, and biosolids. Per- and Polyfluorinated-Alkyl Substances (PFAS) are a class of anthropogenic chemicals containing fluorinated carbons with a charged functional group (carboxylic acid or sulfonic acid) that is resistant to degradation.

If your current treatment plant only requires a polishing step to reduce PFAS concentrations, Kruger offers cost-effective standard solutions such as activated carbon pressure filters and ion exchange systems to accomplish this. If your water source has other areas of concern in addition to PFAS such as hardness, nitrates, perchlorate, organics, or turbidity, Kruger can provide a complete system for your total treatment needs.

With a collection of small flow (1 gpm or less) carbon and ion exchange column testing skids, Kruger can quickly provide a testing skid along with PFAS removal carbon and resin media to help determine the most cost-effective treatment approach.

Kruger can also deploy mobile treatment units to maintain water production while source water management and treatment technology evaluations are conducted.


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