What are various technologies available for biological treatment of sewage? Is it possible to meet the standards set for safe disposal of treated sewage?
Both aerobic as well as anaerobic technologies can treat the sewage biologically by selecting suitable bacteria. These technologies can be further grouped into attached growth where bacteria are grown on the support media and suspended growth type where bacteria are grown in the effluent itself. In Ion Exchange I Ltd., we generally employ aerobic technologies such as are C-Fix, C-Tech, NGSTP, C-mem, etc. It is surely possible to treat the sewage efficiently to meet disposal standards.
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