I am researching the industrial wastewater treatment with a capacity of 16 m3/hr wastewater treatment plant.
Type of industry: Laundry
Mode of treatment: Primary clarifier, Aeration tank; secondary clarifier.
Please let me know how to develop MLSS in aeration tank during start-up of the plant using existing activated sludge from other industry as inoculum. Thank you in advance.
Process startup of activated sludge (AS) systems will be proceed quickly problems (excessive foaming, ...) when the sufficient seed sludge from a well performing AS system running on similar wastewater (laundry) would be used. The 2nd best option would be from an AS system on municipal sewage which also includes laundry. The 3rd option would be a mix from various AS sources. The last option would be from an AS system on completely different wastewater such as latex (natural rubber) in which case the process startup could take a long time with excessive foaming and sludge washout. In all AS startup cases, please add sufficient nutrients N and P as well as micronutrients after equalization and pH correction.
whatever activated seed sludge you use try to gradually increase the % of wastewater intended for treatment in your case laundry wastewater to avoid any shock loading to biomass.
Dear Nur Layli Wirman ,
Thank you for your appreciation. It's my pleasure to help you.
The other critical parameter in AS startup would be the specific activity of the microbes measured in aerobic systems as SOUR = OUR / MLVSS with OUR = oxygen uptake rate (measured with DO meter over time in stirred beaker) and MLVSS = volatile (organic) fraction of MLSS.
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