PROCESS AND APPARATUS FOR NITRIFYING WATER IN CLOSED SYSTEM HATCHERIES OF PENAEID AND NON PENAEID PRAWNS

摘要

A process and apparatus for nitrifying water in closed system hatcheries of penaeid and non penaeid prawns which comprises in a first step of treating water with an ammonia oxidizing consortia to convert the ammonium present in water of the hatchery system to NO2 and in a second step of nitride oxidizing with a nitride oxidizing consortia for converting NO2 into NO3 .