Engineered biological treatment systems

Warden Biomedia filter products (like Biopebble, Bioball 220, Biomarble 310 and Bioflow 800) are high-surface-area plastic media designed to host bacteria for water treatment. The media is designed to be a permanent, non-clogging alternative to traditional materials like gravel or slag, with improved removal of pollutants

Submerged Aerated Filters consists of a series of cells containing buoyant media retained by a screen with air distribution fed from a blower. Because there is no limitation on air flow through the media, it is possible to use media with higher surface area per unit volume than in trickling filters. Bioball and Biomarble media have proved highly

Colloide solutions for effluent treatment are determined by site-specific factors including: existing plant size / capacity / condition; raw water quality; required final quality of treated effluent; space available; etc. Activated sludge treatment uses microorganisms cultivated in the treatment process to break down organic matter into carbon

Colloide manufacture and install submerged membrane bioreactors. The MBRs are the most technically advanced products in their field, giving unparalleled performance in wastewater treatment. Colloide's submerged membrane bioreactor can be installed as part of a new-build plant and integrated to upgrade existing plants, giving an excellent quality

Puriflo's membrane bioreactors feature submerged aerated media, offering high performance with low electrical running costs and minimal maintenance. They are manufactured with flat-sheet membranes and are designed specifically for each application. Services include installation and commissioning

Puriflo has wide experience with activated sludge treatment systems for treating industrial effluent. The treatment consists of an aeration tank in which a bacterial culture is given oxygen by aeration, enabling it to consume the organic content of the effluent or sewage. After treatment in the aeration tank, the flow passes to a settlement tank

Puriflo specialises in the design of submerged aerated media plant for treating waste water in food processing industries. Submerged aerated media plant can deal with much higher loadings per cubic metre of tank volume than an activated sludge plant. No daily checks are required on the mixed liquor solids volume. Submerged aerated media plant uses

Biopebble, Biopipe+ and Bioflo+ biological filter media are designed for use in Recirculation Aquaculture Systems (RAS). Warden Biomedia's uniquely-designed media provides a large protected surface area for biofilm development and optimal conditions for bacteria culture growth. RAS are designed to recirculate the water from fish farming tanks

The AnoxKaldnes™ MBBR (moving bed biofilm reactor) is a biological wastewater treatment where an active biofilm grows on small specially-designed plastic carriers that are kept suspended in the reactor. The AnoxKaldnes™ MBBR technology allows a flexible reactor design, and can be used to upgrade existing plants and biological processes

The AnoxKaldnes™ Hybas™ hybrid process combines AnoxKaldnes™ MBBR biofilm technology and an activated sludge process in the same tank. The Hybas™ hybrid process is suitable for nitrogen removal from municipal wastewater and for some industrial applications. High nitrification is achieved with a reduced suspended sludge age

The media used in trickling filters needs a high surface area but must have a sufficiently open structure not to restrict the natural draft air flow. Traditional filters used blast furnace slag but modern plastic media like Biofil and Bioball provide a much higher surface area per unit volume of media with a low air side pressure drop. This makes

Puriflo has wide experience in building sequential batch reactors, a form of activated sludge treatment in which both aeration and settling take place in the same tank. The process can only be applied in cases where the flow to the plant is suitable or where it is possible to discharge a large volume in a short time. It is possible, by the

Phragmifiltre® is a reedbed technology that provides complete treatment of macerated or raw sewage in a single wetland system, with no pre-settlement and little or no power requirement. The system can treat raw non-settled sewage from 20 to 5,000 PE achieving removal efficiencies of 92% COD, 97% BOD5, and 97% suspended solids

ANITA™ Mox is a moving bed biofilm reactor (MBBR) for treating high-ammonia effluents. The system removes ammonia from effluent before it is recycled back into the digester for further treatment or discharged in the environment. Compact and flexible process, easily adaptable for upgrading of existing plants; alternative to building new biological

Membrane Bio Reactors (MBR) from MSE Systems combine activated sludge treatment with a membrane liquid-solid separation process. The system uses low pressure Micro Filtration (MF) or Ultra-Filtration (UF) membranes, eliminating the need for clarification and tertiary filtration. MBRs are suitable for municipal and industrial wastewater treatment

Biostyr™ biofilters combine a biological reactor and a physical filter in a single structure for the removal of organic, nitrogenous and particulate pollution in the treatment of municipal and industrial wastewater. Biostyr™ biofilters are available in several configurations for carbon removal, nitrification, nitrification / denitrification, and post-denitrification, and have a modular structure

Integrated fixed film activated sludge (IFAS) process combines biofilm technology and the conventional activated sludge (AS) treatment. IFAS technology is compact, cost effective and retains high biomass concentration in the reactor. This process uses suspended a suspended buoyant media, usually made of polypropylene (PP) or high density

In moving bed biofilm reactors the buoyant media is free to move within an aerated reaction chamber. The MBBR integrated fixed film activated sludge (IFAS) is essentially an activated sludge suspended growth process but with the biomass fixed to the media. It can perform all the same process variations such as nitrification, denitrification and

AnMBR LE™ is a low-rate, completely mixed anaerobic reactor combined with a low energy UF membrane separation system for treating highly concentrated organic wastewater. Designed for high COD removal and biogas recovery, it retains all solids, tolerates high TSS, salinity, and fats, and operates with low energy use and simplified pre-treatment

Nijhuis offers several types of biological treatment system: nijhuis batch biological plant is specifically designed to match the production cycle in a production plant. The whole process takes place in a single tank. The flexibility of the batch system is enormous. in a continuous system the treatment plant is continuously fed and the sludge is

HYRATE biofilter open-top containment structures are available in square, rectangular, circular or polygonal shapes. They are made from galvanised mild steel and installed on civil engineering structures. HYRATE biofilter containment structures are suitable for use in effluent and wastewater treatment plants. Containment shell sizes in basic

TITAN MBR™ (Membrane Bioreactor) Flat-Plate Membranes (MF) maintain high permeability and flux rates even at peak-day rates. They stack within a fully submerged module inside the aeration zone. Transmembrane pressure created by gravity drives the flow through the membranes. Clean water discharges while blocked solids remain in the aeration zone

Aquabio AMBR LE™ is a low energy membrane bioreactor system for industrial wastewater treatment, designed for compact installation and reduced energy use. Intermittent back flushing controls membrane fouling, while variable speed pumps adjust energy use to match plant demand. Cross flow ultrafiltration membranes remove suspended solids, producing

Moving Bed Bioreactor (MBBR) is a biological treatment system for industrial effluent, using free-floating, high–surface area media to support dense microbial growth and treat dissolved organics and ammonia in compact tanks. Designed for sites with variable loads or limited space, it delivers stable COD and BOD removal without sludge recycling