Sankara Eye Hospital – Revamping of ASP to MBR STP (150 KLD)
Hospital effluent contains pathogenic microorganisms, pharmaceuticals that have been partially metabolized, and other heavy metals and toxic chemical compounds. Since hospital sewage/wastewater consists of various potentially hazardous components, they will cause many risks to humans and the environment by polluting surface and groundwater.
- Using the conventional method, sludge settling was not effective. Owing to that, sludge floats to the surface thus escaping to decanting tank
- This sludge in decanting tank makes filter media in the filter vessels get clogged often resulting in frequent backwashes and even filter media replacement
- This even leads to more functioning filter feed pumps, thereby increasing the power required.
- Being a continuous process, and over functioning of sewage pumps, sludge removal time gets lesser thus leading to accumulation of sludge in settling tank. This often leads to frequent tank cleaning procedures.
- Final treated water quality was less
- Since treated water quality was not up to the level, it was not re-used for flushing / gardening
- Instead of individual sludge settling tank, being combined aeration, settling and decanting in a single tank, most of the sludge will be settled before treated water is taken out.
- No filter vessels will be required in this method of STP
- With the MBR method, the functioning time of almost all electro-mechanical equipment was reduced, thereby reducing overall power consumption.
- With membranes as a filtering medium, only membrane cleaning is required.
- Treated water quality was improved in a dramatic way
- Power Saving Method
- More idle time for electro-mechanical equipment
- Much better-treated water quality
- Re-use of treated water for gardening & flushing