day 6 water sampling station & water treatment plant

Basically, what we have seen is what kuala muda’s group has seen today. So, just to add a bit what is not mentioned, there is a gadget called sensION 5, looks the same as sensION1 used to test for PH is used to test for conductivity (free ion) of the sample. It has to be less than 1000micro⁵/cm of unit only considered to be normal.

turbidimeter:- less than 5ntu is safe to drink

sensION5( Ph indicator):-6.5- 9.5 is normal

sensION5(conductivity indicator):- less than 1000 is normal

colorimeter: at least >0.2

Some pictures of the water treatment plant in batu 5 SIK:-

intake of river water into SINGLE DROP AERATOR as seen in the pic above, followed by lime dosing at the upper level before flowing down to a lower level as seen in the pic below.
water seen in the pic above will flow into a compartment in which aluminium, chlorine& fluorine dosing is done. (aluminium has been replaced by pac18 in this water plant, alum is no more used; chlorine& fluorine is added alternately.)

pic above: fluorine chamber leading to water treatment system

pic above:- chlorine chamber channeling into water treatment system

pic above:- alum mixing tank which is no more operating.

pic above:- hydrated lyme mixing machine

pic above:- pac18 which has taken over the role of aluminium sulphate. (according to the infoman la)


pic above:- baffle flocculators/ Lovo sedimentation tanks( in a zig zag manner), pile of dirt is seen trapped in one of the channel, due to the effect of pac18.
filter tanks(4 of them) which recieve water from the lovo sedimentation tanks. underneath this water is a 4 layer sand filter which filter the water. after the water is done with chlorine dosing and lime dosing again, the water is either stored in 1. backwash tank 2. p'glas G.L storage tank for distribution(4 of them) or 3. directed to chemical dosing.

what to do with the dirt trapped in the 4 layer sand filter? it is done by backwash pump which pump the water back to the 4 layer sand filter from the backwash tank in an opposite direction. see the bubble in the pic above? the effect of backwash at a rate of 620metercube/hr for 8 minutes. but before this, the sand filter is shakened by the effect of the "penghembus udara" in order to loosen the dirt trapped in the filter.

pic above:- the backwash valve is closed to let the dirt flow into a passage channeling the waste back to the river again. itu dia Si niti closing the valve. Macho....

the dirt is cleared bit by bit.....

wait....

wait,wait.....

okay, now the dirt is cleared. after the filter is dried up, make sure there isnt any mud ball, otherwise it has to be MANUALLY dug out upon the commencement of the next filtration.

PICTURES OF THE DAY

i know!.... but according to puan PPKP, somebody suddenly disappear after washing his sampan near this place . so we still dun know if it's a safe place to go...