How and why combine chemical and biological processes for wastewater treatment

Abstract
Oxidation processes for water treatment have show their worthiness in the field of toxic compounds elimination. However, total mineralisation through this means is very expensive. On the other hand biological treatments are really cheap and reliable, but there are substances, however, which they are unable to deal with. A combination of both kinds of processes would mean a cheaper option for total organics degradation from a toxic wastewater.