Updated - Invitation to Bid - IRAQ-LITB-018-2020-9159942 - Purchase and Delivery of Two Reverse Osmosis water treatment units to Kawergosk Refugee camp, Erbil governorate
Dear Sir/Madam,
Kindly find attached the revised LITB bid form for the subject tender for your consideration.
Please note that the closing date has been changed in the attached bid form to 4th August 2020 as mentioned in my previous message.
Regards,
UNICEF Iraq Supply team
------------------------------------------------------------------------------------------------------------------
Dear Sir/Madam,
Kindly find below the answer to queries that were raised by vendors for your information. Also, note that the closing date has been extended to 4th August 2020.
1.- There is not indication about pump from well to RO treatment unit. So, we consider this pump will be not included in offer. Yes , the pump is not included/required in this bid
2.- In the invitation to BID is indicated: “Frame+encasement cabinet (water and weatherproof container), Rugged, 304 stainless steel”. Can we offer each unit inside a marine container with Air conditioning with hot/cold system? Frame will be rugged and made of AISI304 stainless steel. you can offer for both , the one we requested in the bid and another option for the one you proposed
3.- In the solicitation document is indicated: “Permeate conductivity Range 5”. We consider product water will be with quality required for drinking water. But we do not understand the meaning of “range 5”. There are specific parameters or limits required for product water? Permeate conductivity Range 0.05 µS/cm-200 µS/cm
4.- In the invitation to BID is requested duplex stainless steel for high-pressure tubing. We consider this type of stainless steel is for sea water and not for water from well. Considering the lab test results, included in the solicitation document, of the water to be treated we consider not necessary this type of stainless steel. Can we offer AISI316 stainless steel for high-pressure tubing? You can offer for both , the one we requested in the bid and another option for the one you proposed
5.- It is requested a multimedia sand filter with capacity of 20 m3/h. We consider there is an error in the capacity of the filter. Filter will be the first step of the treatment unit, so the capacity have to be the same that the reverse osmosis feed water. We consider a flow of about 30 m3/h. Do we offer a filter with capacity of 30 m3/h? total Production per Hour (permeate flow rate) for the RO unit is: 20m³/hr , regarding the filter it should have a capacity to help the RO to produce 20 m3/hr, so the filters can have a capacity of about 30 m3/hr-each
Besides that, it is requested filter with Filling material Quartz sand. After to analyse lab test results included in the solicitation document, we consider filter can be filling with zeolite. Can we offer filling zeolite? Yes , zeolite as filling material for the multimedia filter can be offered
6.- Permeate conductivity Range 5. What is the definition of the very and what are the measurement / scientific units for it? The output product water Electrical Conductivity of the RO plant which we can offer will be <200 uS/cm. please do let me know if that is acceptable. Yes, Permeate conductivity Range 0.05 µS/cm-200 µS/cm
7. Do you have water analysis report for the raw water (borehole water)? Yes, find the highlighted figures in the attached file
8. Can you advise the treated water quality criteria; Iraqi standards for drinking water and WHO standards for drinking water
9. For scope of supply, do we need to include feed water pump to draw source water from the borewell? Or we can just specify the required feedwater pressure and flowrate? You are not requested to include feed water pump, you can just specify the required feedwater pressure and flowrate
10. Inside the ITB document, page 4 of 27, it is mentioned “6 – Duplex stainless steel high pressure tubing”, we believe this is unnecessary for typical underground water. You can offer for both , the one we requested in the bid and another option for the one you proposed
11. Ro membrane is specified as “American and western European origin of made”, we want to check whether Japan origin is acceptable? Yes you can offer both origin, American and western European origin of made and Japan origin
12. membranes 5 – 6 years lifetime warranty” is specified in the tender specs, but this is impossible from RO membrane manufacturer and it also depends on the operating conditions. Is it okay to propose standard material defect warranty for 1 year? This is a factory warranty for 5-6 years lifetime, and you can add a reservation that you are not responsible for any damages caused by poor operation.
13. For delivery, what is the required scope and INCO-TERM requirement? Do you also have a lead time requirement for this project?
14. Multimedia Sand Filter capacity 20 m3/hr, which means the inlet of RO unit is 20m3/h. Usually the water production rate of the RO is 75%, means RO production per hour should be 15m3/h. Which is contradiction with the technical specification of of "Production per Hour (permeate flow rate): 20m³/hr", please kindly clarify the requirements; total Production per Hour (permeate flow rate) for the RO unit is: 20m³/hr , regarding the filter it should have a capacity to help the RO to produce 20 m3/hr, so the filters can have a capacity of about 30 m3/hr-each
15. Please kindly clarify where we can discharge the concentrated water produced by RO (25% of the inlet, about 5m3/h) ? This is the responsibility of the operator (Directorate of Water)
16. Cartridge filter requests "Duplex stainless-steel high pressure tubing", please kindly clarify the SS304 is acceptable? You can offer for both , the one we requested in the bid and another option for the one you proposed
17. Please clarify if the RO unit will be installed in a Container? It should be offered with the container
18. Please kindly clarify is it necessary for vendors to provide the "feed pump" for the RO system? if yes, please indicate the water source location and how far the pump from the water source; no, not required, you can just specify the required feedwater pressure and flowrate
19. Please kindly clarify how to collect the production water from RO system, is there any production tank or sink? This is already available in the site, not required In this bid
20. installation , O& M will be done by the concerned water directorate"
Please clarify if vendors only supply the RO systems to site, there will no installation and commissioning from supplier? Yes, vendors only requested supply and transportation the RO systems to the site
21. SPECIAL NOTES: Local Invitation to bid (LITB),
Please kindly clarify if international bidders can participate in this project; over to Supply section to clarify
22. Please kindly extent the close date to 04.08.2020; Accepted. The closing date has been extended to 4th of August 2020.
23. - What are the capacity of Deep Well Pumps.? Are they able to feed Cartridge & Multi-Media Filters directly.? the capacity of Deep Well Pumps 50 m3/hr
24. We did not see any words about the Storage Tanks. How do you assume to regulate the Well Water, Softened Water & RO Water.? We have those available in the site already
Can you prefer any storage capacities.? No need in this bid
25. Is there any Booster Pump System to feed the RO Water to Refugee Camp.? yes
26. Can you explain require "Dolomite Column" ? Because generally RO water is not preferred to serve directly for drinking. The purpose is to provide drinking water
27. What is your comment about assembling full system in a container or on a skid, with international transportation sizes.? RO Continer that could be shipped
28. Do you advice any special kind of chlorination method.? Tablet (Granul) Bottle / Liquid Dosing / Gas Dosing etc. Liquid Dosing
29. Do you advice any By-Pass connections against any obstruction or maintenance necessity.? no
30. The requirement is provision and transportation of the units to the refugee camp in Erbil.
Please reconfirm that the requirement is calling for supply and transportation without installation? Yes, it’s only provision (supply) and transportation of the Unit, the installation is not required.
31. Please advise if the required capacity of each unit is 20m3 per hour, which means 200,000 liter for 10 hours of operation, or 20m3 per day for 10 hours operation? The required capacity is 20M3/hr.
32. Please kindly confirm that the requested capacity is 20m3/hour instead of 20m3/day. Yes requested capacity is 20m3/hour
33. In tender documents it is mentioned (# Technology: High energy-efficient Reverse-Osmosis (RO)) and (- Low Pressure High elimination). We believe there is discrepancy between these two statements. Please clarify. No discrepancy, RO unit High energy-efficient, Membrane is Low Pressure High elimination
34. The temperature is shown in two different places in the tender documents: (# Max/Min. Supply Water Temperature: Max 37°C (110°F) / Min 2°C.) and (-Max/Min operating temperature:50/2 c). Please advise which range to take into consideration. (# Max/Min. Supply Water Temperature for the RO unit : Max 37°C (110°F) / Min 2°C, while Max/Min operating temperature for membrane is 50/2 c
35. Since the water source is from wells, minimum water temperature can’t reach 2˚C? Please clarify design temperatures that we should take into consideration (minimum and maximum design temperatures) Max 37°C (110°F) / Min 2°C
36. Please confirm requested TDS of permeate water and clarify the usage of permeate water. requested TDS of permeate water is to be always in the range of Iraqi standards for drinking water and WHO standards for drinking water, the usage of permeate water is for drinking
Regards,
UNICEF Iraq Supply team
-----------------------------------
Dear Sir/Madam,
Kindly find below answer to question that was raised by vendor for your information. Also, the attached water lab test for your information.
- Question: The permeate water TDS analysis is not stated in the bid document. If this data is not available, and this water will be used for refugees camp, we can use the permeate TDS value of 100 to 120ppm. Please advise.
Answer: The sault reduction rate is specified in the specifications
- Question: The control system is not clearly stated in the bid document. We can provide MCC, PLC and HMI system for easy operation. The water package will be fully automated. Please advise.
Answer: Yes, let them offer the MCC, PLC and HMI system, kindly circulate this with all other bidders
--------------------------------------------------------
Dear Sir / Madam,
United Nations Children’s Fund (UNICEF) hereby solicits the Bid for the subject requirements; in this connection, please refer to the attached Invitation to Bid documents.
- IRAQ-LITB-018-2020- 9159942 – Bid Form Must be filled out, stamped and returned
If you are interested in participating in this IRAQ-LITB-018-2020- 9159942, you are kindly requested to submit your offer electronically on or before the indicated closing date/time
28.07.2020, 12:00 PM local time) to the following email address
ONLY:
irqtender@unicef.org
Note: Please submit your offers in two separate emails. The first email with catalogs and pictures. The second email is the financial offer. Companies sending only one email may be disqualified.
Regards,
UNICEF Iraq Supply team