Biological treatment
Biological decontamination is a frequently used technique for the removal of dissolved organic contamination from water. There are two different versions of biological decontamination, namely aerobic and anaerobic decontamination. Aerobic decontamination is characterised by the treatment of waste water by aeration with oxygen. Anaerobic decontamination makes use of bacteria to treat the waste water oxygen-free.
Wazutec advises its customers to pre-treat the waste water using ELFLOX ® technology. A combination of ELFLOX® and biological decontamination offers many advantages. A major reduction in oxygen use due to pre-separation of contamination and the simplified conversion of chemical oxygen demand (COD) are significant benefits.
The average reduction in COD due to the use of ELFLOX® as a pre-treatment may amount to 40-80%. Furthermore, the average reduction in nitrogen is around 30%. Industrial waste water flows of an organic nature, with COD values of up to 70,000 mg per litre continue to be simple to treat in anaerobic pellet reactors as a result. Early phosphate reduction and H2S reduction during the anaerobic processes are additional benefits of this method. Difficult to remove COD can be removed prior to or following biological treatment, in order to achieve the desired effluent values. Wazutec is also happy to work with you in this area to achieve the best possible solution.
Biological decontamination applications
In recent years, Wazutec Watertreatment has designed both aerobic and anaerobic decontamination processes for local authorities and industry. The biological treatment method is determined according to environmental factors. These are strongly dependent on the continent on which the installation is to be built. Other factors which influence the choice of the technique to be applied are local availability of materials, the prevailing temperatures and the skills of local employees. Based on this situation, active sludge installations, MBR, SBR, EGSB, CWD, and derivatives of these installations are also used.
In recent years, Wazutec Watertreatment has designed both aerobic and anaerobic decontamination processes for local authorities and industry. The biological treatment method is determined according to environmental factors. These are strongly dependent on the continent on which the installation is to be built. Other factors which influence the choice of the technique to be applied are local availability of materials, the prevailing temperatures and the skills of local employees. Based on this situation, active sludge installations, MBR, SBR, EGSB, CWD, and derivatives of these installations are also used.
Biological treatment applies to:
Phenols, Chlorobenzenes, Naphtha, EDTA compounds, Butanol, Bromopropane and other easily converted compounds such as Alcohols, formaldehydes and methyl sulphates.
For biologically treatable waste water flows, Wazutec leases custom-made trial installations. The trial installation is developed once laboratory tests have been carried out for the optimum design. Interested in the options of biological treatment or trial installations?