Mycoremediation is bioremediation process by fungi and their enzymes present in It due to their ligninolytic or lignocellulolytic activity they secreate the enzyme to degrade or scavenge the environmental organic & inorganic compound to the simplest and absorbable form. In case of Pleurotus ostreatus (OM mushroom ) hypha shows the microfiltration & iron binding magnetism property to eat and entrap into their interwoven hypha, when attached with substrate they from a biofilm or biofilter like layered porous structure (permeable) easy to filter the polluted water to its optimum level. when the hypha is in growing stage or active stage, show multiplicatory bioremedial effect to purify the impure water leads to change in physicochemical properties like colour, odour pH , acidity, alkalinity, hardness, tds, conductivity or excessive metal like iron. Etc The term "infiltration" refers to the process of water moving in all directions into the soil. or utilized are included in the process of drip irrigation maintained the equal regulation of water The maximum rate at which water is absorbed into the soil or substrate in case of Macro fungus OM mushroom play a maximum filtration rate by its multiplicatory hypha like structure. OM mushroom shows hairy or hypha cottony filter sheet like structure able to entrap iron particles very closely & digest it, specificity for iron uptake or digestion shows the mycorrhizal bed forming by 10 units to check the filtration rate at the treatment giving per day at on consecutive days results shows increasing of iron uptake or digestion by the Pleurotous mycorrhiza is more in 1day<2day<3day<4day<5day<6day because of increase in the activity of iron particle digestion & growth of fungal hypha or vice versa , maximum the growth of hypha greater the iron uptake greater the growth of Pleurotous ostreatus by drip irrigation method created by the conventional system arrangement to maintained the flow of water to initiate the mushroom growth then spray method ,with respect of each days or initiated growth , increase in Iron digestion & total dissolved solids gives solution of contamination water, at maximum extent by digesting un absorbable metallic ion to absorbable form to get colorless odorless or tasteless water without any change in there purity level (purification after filtration through mycorrhizal bed or unit) of contaminated water .