Ozonator

Ozonator

In recent years, sophisticated needs for advanced sewage treatment have been increasing for recycling sewage treatment water. Ozonation as part of advanced sewage treatment is assumed to be extremely effective for decolourization, disinfection, deodorization, and reduction of COD because of its strong oxidizing capability. Green Aqua offers an originally developed ozonation system that achieves low running cost and space saving using a highly efficient ozoniser of completely new concept to meet these needs. Ozone is very helpful in the tertiary treatment of the sewage. After the primary treatment which mainly consists of formation of colloidal particles and removal of these along with suspended solids. The secondary treatment is normally a bio–reactor where oxidation takes place with the help of aerobic bacteria. The water still has to be disinfected and chlorine which has been used hitherto is the least desirable chemical today. This is replaced by ozone with added advantage of giving further reduction of colour, odour while disinfecting at the same time. Ozone is also used for the reduction of BOD (biological oxygen demand) and COD (chemical oxygen demand). However, the primary function of using ozone in the tertiary treatment is to disinfect. A minimal dose of ozone does this job better than high dosage of chlorine. The ozone treated water is considered safe to dispose of. In fact, in most of the cases, the ozone treated sewage water is recycled for various uses like gardening, cooling tower water requirement and also for toilet flushing in many housing colonies.