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Hi ashtree, Thank you for the detailed reply. Are you referring vacuum truck as a hydro-vac truck? I was talking to filter manufactured, they said filter media can be put it back in the filter. They generally pump into dewatering bags and put it back in the filter. I can not figure out how...

Hello, At our Water Treatment plant, we do have three filters- due media (Sand + Anthracite), each has four cells ( 15' X 15'). All tanks are due for structural inspection for corrosion. Also, there are few welds failed at the bottom of the tanks. To fix the tank's weld, all media requires to...

Hello. In our WTP , we have 13 HACH flow through turbidity meters. All are about to end of life. We estimated that all turbidity meters waste around 50m3 into sewer. I am looking for advice on if there is way to plumb device or insert type device available to stop wasting water. Thank you. R

Hello, Our water treatment plant has three filter. Plant design to pump back wash water from clear well after chlorine injection. Thus, plant had de chlor sytem prior to discharge to over land channel. My question - if we pull filter water without chlorine, what would be pro and cons? What...

Hello, Recently i moved to an organization. where they practice overland garden hose connection from neighbour property to supply the potable water in event of service connection failure. I do see deficiency in this practice. I was talking to other municipalties, they have simillar...

Thank you all . This is what I like about this group. After so many hours I spend on Google, I could not find SHC 40 PVC plug. Thank You to JedClampett. Good Day... NP

Thank you all for quick reply. HotRod10, I have place the request to Sika. Would you share other manufactures name? I also approached Chem-Cret pipe plug product. looks promising but don't sure it is the reliable solution. thanks R

Hello, At our waster water treatment plant- in the filter tank, we have 4" and 6" PVC drain pipe penetration in the 8" thick concrete wall. PVC sleeves embedded in the concrete wall. Any suggestion to plug the PVC pipe penetration? process environments is secondary effluent. See attached...

Hello, We found the leak on 600mm watermain connect from underground wells to water reservoir. We do not know how big is the leak. and because it is on main we donot have more than a day to keep ground open. for that reason, we bought repair clamp and coupler in case. my question in this...

Hi bimr, Thank you for reply, we have alkaline stabilization process where we mix the LKD and CKD(by product of cement plant). in past, SSO processed to this process, in result, final product was compromised. not having larger enough quantity of SSO, digestion would not be feasible. I read...

Hi, Exiting BNR WWTP has design capacity 14,000m3/d ADF. At plant we do see total daily flow 12000m3/day. There is no future potential to increase the flow which lead to increase the loading. Currently, the town collect around 2000 ton SSO (food waste). I am looking for the idea for how to...

Thank you Ashtree and Bimr: Intent here is energy saving and better nutrient removal. Influent : BOD/PH/TSS/TP/Dissolved Orth/TAN = 167/ 7.6 / 165/ 3.6/2.2 /12.9 Effluent : BOD/CBOD/ph/TSS/TP/Dis Orth/TAN/TKN/No2+No3/TN = 2/3/7.5/2.5/.11/0.04/0.5/1.02/5.21/6.15 Bio reactor arrangement is...

Hello, WE do have BNR process at the plant. influent flow varies from 7000m3/d to 13000m3/d. One of the operation brought up idea of changing on cell of bio reactor to swing zone as plant has significant season variation. I have been searching to good case study to identify the favourable...

Hi Bimr, Yes. We do have double wall tank for diesel tank. Owner forcing us Water Act which say 100m clearance require. However it do not specify distance with double wall tank. That's why I asked question to forum to get more information from real scenario and solution to that. Regards...

Hello, Thank you in advance fro your time. This is case in Federal land of Canada, We have water wells supplying water to Town for few decades. As part of disaster mitigation funding we are proposing to installed Diesel genset to supply power in emergency situations to water wells. Federal...

Hi Bimr, Thanks. I will do that. I checked the company website and they have replace filter media to disc filter. Any suggestion on any new WWTP filtration technology coming in market. Thanks again, Regards, Rakesh Savani

Hello, It is dual media travelling bridge filter by US filter. Capacity 1.8MGD. Top layer 8" Anthracite coal 1.0-1.1 effective size and bottom layer 8" fine sand effective 0.55-0.65mm. I am in Alberta. I could not find anyone who have been running this type of filter for long time. This...

Hello, Bimr, we have levelled and started filter last week. With in a day filter media moved to centre. Please advice if there are in firm on this subject or technology to do comparison for future upgrade. Thanks

Yes Manufacture of filter no longer in market. that's why I approach group. Thanks for your time Regards, Rakesh

Thank you Bimr, We replaced media last year. But still we have media migration issues with in filter and loosing media. Engineering firm involved during the study prior to work in 2012 and they recommended replacement of media. We did replace the medial but there is still issues. During the...