Cantex Technology

SeProAB ®

Sequential Progressive Anaerobic and
Aerobic Bio-Reactor

SeProAB is a highly efficient technology best suited for aerobic and anaerobic wastewater treatment. The system consists of baffle/isolated aeration tanks used for stage-wise treatment, which helps remove maximum BOD load in each stage up to a cumulative 97%. SeProAB ensures reduced sludge generation during the process

How SeProAB works?

Cantex’s STP design, which uses SeProAB technology, is designed to occupy a smaller footprint area and save up to 50% of electricity consumption. The design incorporates cylindrical-shaped PE carriers that add to the aerated or non-aerated basin to support biofilm growth. The biomass grows primarily on the protected surface of the inside of the carriers. Air agitation or mixers continuously circulate the carriers, while the perforated core inside the reactor keeps the biofilm carrier inside the tank.

Benefits of SeProAB ®

Reduced
Cost

SeProAB technology saves about 60% of the construction cost for STP systems

Lower
Sludge

In the SeProAB technology, sufficient growth of microbes ensures progressive reduction of pollutants and sludge

Power
Efficient

Power consumption is less than 50% of any conventional STP technology

Minimum
Running Time

The minimum running time can be as low as 8 hours a day

Latest
Bio Enzyme

Uses the latest Bio-Enzyme (Enzobak) technology for Sludge reduction

Faster
Installation

Faster installation and commissioning

Plant
Stabilisation

Plant stabilization within five days from any worst condition of sewage infection

Odourless
Operation

Our Treatments have Odourless operations

Advanced
Design

SeProAB uses Advanced Design and Technology

Low Sludge
Generation

SeProAB is a progressive system, and the aeration-mixing process maintains the biofilm thickness

Cantex Technology

Conventional

Conventional technology for water
and wastewater treatment

Cantex employs a traditional multi-stage water treatment process, including coagulation, sedimentation, filtration, and disinfection. This approach, widely used since the early 20th century, ensures the delivery of clean, potable water.

About Conventional
water treatment

Conventional wastewater treatment is a multi-step process that uses physical, chemical, and biological methods to remove solids, organic matter, and nutrients from wastewater. The degree of treatment can vary, with higher levels offering more on thorough purification.

Coagulation

The coagulation process is a crucial step in water treatment plants. It involves adding iron or aluminium salts, like aluminium sulphate, ferric sulphate, ferric chloride, or polymers, to the water to remove organic compounds and suspended particles. The coagulant is mixed with the water rapidly to ensure even distribution. This process effectively eliminates many organic compounds, such as dissolved organic material (NOM) or dissolved organic carbon (DOC), and can also remove suspended particles, including inorganic precipitates like iron.

Filtration

The second step in a conventional water treatment system is filtration, which removes particulate matter from water by forcing the water to pass through porous media. The filtration system consists of filters with varying sizes of pores, usually made of sand, gravel, and charcoal. The type of particles removed from water during filtration depends on the size of the filters. Slow sand filtration removes bacteria, protozoa, and viruses effectively, but it is still advisable to use disinfectants as a precautionary measure. On the other hand, rapid sand filtration removes suspended particles that may have bacteria attached. However, it cannot remove bacteria, protozoa, or viruses from the water.

Conventional wastewater treatment follows a multi-stage process: preliminary, primary, secondary, tertiary, and advanced. Disinfection is often the final step to eliminate pathogens. The biofiltration process can be simplified as:

Pollutants + Microorganisms + Oxygen → Biomass + Clean Water + Carbon dioxide

Cantex Technology

Odour control systems

The Cantex Odour Control System is an ecological and economic wastewater odour-control system for a healthier environment. Odours emanating from wastewater treatment plants are due to sulphur compounds, ammonia, and volatile organic compounds (VOCs). The first steps to mitigate these odours include containment and ventilation, followed by either chemical or biological treatment.

Cantex solutions effectively address odour issues in wastewater plants, making them more pleasant for staff to work in and for nearby communities to live in. Foul odours are a common challenge in wastewater treatment, including in industries like food and beverage processing and pharmaceutical production. Exceeding the permissible odour limits may result in authorities taking appropriate action. Cantex Odour Control System uses negative pressure and a deodorisation treatment (biofiltration) to collect polluted air. The system can achieve very high filtration rates (500m³/m²/h) with treatment loads that can exceed 50g/h/m³ of medial, and oxidises malodorous substances (organic or inorganic) into inorganic and odourless compounds.

Negative Pressure
& Biofilteration

Cantex Odour Control System uses negative pressure and a deodorisation treatment (biofiltration) to collect polluted air.

Very High
filteration rates

The system can achieve very high filtration rates (500m³/m²/h) with treatment loads that can exceed 50g/h/m³

Low Maintenance
Cost

Cantex is one of the most affordable odour-removal solutions and it is also very easy to use. It requires low maintenance and low reagent input, and is available in a wide range of flows.

Cantex Technology

VOC Filters - Air

Volatile Organic Compounds

Volatile Organic Compounds (or VOCs) represent some of the most prolific air quality hazards. Volatile Organic Compounds (VOCs) are primarily chemicals comprising carbon that can evaporate into the air at room temperature. Although some VOCs, like those producing the pleasant scent of citrus and pine, are harmless, others can be harmful to humans when exposed to them for an extended period.

Studies indicate that prolonged exposure to high levels of toxic VOC molecules can cause health problems like headaches, nausea, liver damage, and respiratory irritation. Individuals with asthma or chemical sensitivity are particularly vulnerable.

When products release gases and particulate matter previously trapped in solid or liquid form, a process called off-gassing occurs, resulting in VOCs. Off-gassed substances are often carcinogenic or can react with other air components to form known carcinogens. VOCs can also enter the water supply as a result of human activity. Improperly disposed volatile organic compounds can leach into the ground and migrate from aquifers to lakes and reservoirs.

Trihalomethane

Trihalomethane is the most common VOC found in water and is a by-product of water disinfection.

Perchloroethylene

Perchloroethylene (PCE) is another by-product of solvents used in dry cleaning and as a degreaser at industrial sites.

Methyl tert-butyl Ether

Methyl tert-butyl Ether (MTBE) is a fuel additive that can contaminate groundwater and soil.