Hi guys ,
I know in SolidWorks, Solid Edge and now I work in NX. but I want to improve in CATIA. I know basic catia and if you anyone of you suggest me some tutorials web site or where I can download free version student or something like that any kind of Catia to practice it will be good ...
yes I found how to obtain 3 kg , but I saw one post they said : you can get DAF design on Solid loading rate too :
Calculation process is it same as for hydraulic loading rate like :
Solving for the tank area, A = Flow/solid loading rate
Design loading rate = Q/A , Design loading rate...
Yes, it is, I mess all this with numbers. (sorry)
So Flow is 50 m3/hr
Flow Q = 25 m3 /hr
Recycle Flow = 25 m3 / hr
_______________________________
Total Flow through unit = 50 m3/ hr
TSS = 120 mg/L
Efficiency factor, f = 0.5
Recycle Temperature T = 10 – 12 C
Hydraulic loading rate = 10 m3/...
IN CONTACT ZONE : detention time : Volume/Flow : 50/25 = 2 min
IN SEPARATION ZONE : detention time : (volume of separation zone)/(volumetric flow rate through separation zone.) Is that this : 50/25 = 2, ( 60min /2 = 30 min
If I have from this calculation (if it is correct) 30 min detention...
IN CONTACT ZONE : detention time : Volume/Flow - 50/25 = 2 min
IN SEPARATION ZONE : detention time :(volume of separation zone)/(volumetric flow rate through separation zone.) Is that this : 50/25 = 2, ( 60min /2 = 30 min
what is maximum velocity volume inside the tank
Here on picture is...
Hi ashtree
What is difference between conventional and high rate DAF design -
Is it conventional DAF without Lamells packs?, and is it DAF with Lamella packs - related to high rate DAF ?
When you say water rise rates ( vertical linear velocity ) is that related to contact zone or in...
if I use detention time : 20 min ( in separation zone - am I right)
and detention time in contact zone : V/Q = in my case : 50/25 = 2 min.
How do I measure time for detention time to obtain 10 - 20 min , is there any possibility to find that as I am face to face with DAF system and every day...
There are some solids but not in way to clog Lamella packs, they will be in some low percentage . I will know clearly what is percentage of solids after I collect samples of material for testing.
do you have fb or some other contact where we can talk private? and also you will have benefits of...
There will not be heavy solids
detention time : I don't know what is,
water rise rates : I can say it is 10 m/hr
but I don't know exactly how do I measure all this parameters, or get direct from commisioning engineer as they will not say (of course)
I am now on site this days .
How do I...
Hi ashtree and other guys ,
I put this parameters from previous your suggestion here , and here is my DAF -Sketch.
Thank you ashtree for powerpoint, I am trying to understand all, and here is something what I need to know exsctly :
From Powerpoint you attached file, do I need calculate...
how do I find HYDRAULIC LOADING RATE ,
this hydraulic loading rate : 10, was from - drinking water for conventional rate DAF it is 10-15 cubic m per sq m-h
with this input parameters what I have, and from your informations ( thanks so much, I respect that) , can I obtain hydraulic loading...
Now I have this
Influent flow ratio = 25 m3/hr
Recycle flow ratio = 25 m3/hr
Total flow through unit 50m3/hr
recycle temperature = 10-12 C
Influent TSS = 120 mg/L , 2305 lb/day
Efficiency factor , f = 0.5
Design loading rate = 10 m
Solving for the tank area, A = 5m2
Loading per Area = 1.78...
hi Ashtree ,
The Commissioning Engineers are there but they will not give any informations.
This your answer are very good and helps me to think about air bubble more and what parametres influence on design.
Just put anything what you think is important, as your informations are welcome and...
Thanks ashtree for this answer ,
How I can measure particle density and look at bubble sizing and rise rates.
I will going next week on trial unit on training of DAF product , should I ask commisioning Engineer for this and ask him how to measure this to get some assumptions on this for...
