METHOD AND APPARATUS FOR DETECTION OF TOXIC SUBSTANCES IN WASTE WATER SUPPLYING A BIOLOGICAL TREATMENT STATION

摘要

RESIDUAL WATER TO BE MONITORED IS COMBINED IN A REACTOR 1 CONTINUOUSLY SUPPLIED BY ACTIVATED SLUDGE FROM THE BIOLOGICAL TREATMENT STATION; A CONSTANT SUPPLY OF OXYGEN IS MADE IN THE REACTOR, AND THE OXYGEN CONTENT DISSOLVED IN THE REACTOR IS MEASURED IN ORDER TO AUTOMATICALLY REGULATE THE FLOW OF INTAKE WATER IN THE REACTOR ACCORDING TO THE MEASURED VALUE OF THE OXY CONTENT TO MAINTAIN SUBSTANTIALLY CONSTANT THE LOAD APPLIED TO THE REACTOR; THE TOXICITY ALARM IS TRIGGERED IN THE EVENT OF AN ABNORMAL REDUCTION IN BREATHING WHEN THE FLOW OF INTAKE OF WASTE WATER IS AT A MAXIMUM.