Water supply system for high elevated community, source is 500m below
Published on by kabindra pudasaini, Program Manager at WaterAid in Technology
I am looking for any low cost technology for designing a water supply scheme for an elevated location, where water source is about 500m down, Stream source, discharge is sufficient but thinking we have to install pumping (many stages).
Electric cable is around 700m far from the community (Marginalized) for installation of Transformer and Cable connection cost may be high.
Source is North face , shadow zone, not sure can use solar power for pumping. There is not any alternative source for upper part for gravitational flow ( this is the top elevation) , there is 150 HH.
Any one have experience of Designing such WSS?
With best regards,
Kabindra Pudasaini
Water Management Expert
Taxonomy
- Pumping System Design
- Community Supply
- Water Supply Design
- Rural Area Water Supply
- Pumps
- Solar Water Pumping
24 Answers
-
In addition to our suggestion and questions addressing your project "pumping water to 500 Meter" from some time ago, we would like to inform you, that we could identify these days by chance a special piston-based pump that is activated by the water from the source (creek or river e.g.) from which the water to be pumped to the user is extracted. No other kind of energy is necessary !
An very old, but interesting technology developed in Germany and realised about 300 times, some still in operation. The pump needs to be designed strictly adapted to the case, so a meticulous assessment is absolut necessary. We could support such work. Our contact: dr.peters.consulting@t-online.de
-
Please provide more details like location, Discharge required, level difference from the source to the service reservoir. Then may be I can help.
1 Comment
-
Dear Amitava, thank you for you suggestion, it is hill area of Nepal, Eastern part of Nepal , source is 250m below and water has to lifted and collection on the reservoirs and has to supply 57 household. Per person 110 l/d , Stream water so no problem on discharge
-
-
The total head required will be static 500 m plus friction head. Latter has to be calculated. You will be requiring two stage pumping. Kirloskar Pumps can do this job. You can send the details for calculation and selection of pumps.
Rajendrakumar V Saraf
1 Comment
-
thank you Rajendra
-
-
Just have a google on "hydraulic ram" https://en.wikipedia.org/wiki/Hydraulic_ram . No need for electricity. And see if some of these suits you. Also pretty DIY. Can pump up to more than 1000m.
-
Dear Kabindra,
It is an interesting project!
If the flow is 75 m3/d, I think that one of the solutions is that you use 1 to 3 inches steel pipe (depending on the daily operation time), more than 60 schedule (depending onthe calculation), and 2 to 3 pumping steps.
I am designing a similar solution for a bigger system (60 km; H -
Dear Kabindra,
Assuming you find a way of elevating the water to the higher elevation and need a cheap low maintenance way of treating it, you may wish to consider the ClariWash filtration system which can be built in a workshop from drawings with reasonable quality control. See website www.waterreach.co.uk. Suitability will depend on local details.
Kind regards
Nigel Heeler
WaterReach - Founder
2 Comments
-
Hi Kabindra WaterReach website gives the concept but I will need to send you detailed drawing depending on your exact flows and water quality. WaterReach is a not for profit co. If interested leave message on website with your email. Thank Nigel
-
wow great, I will go on water reach
-
-
Sir,
Its quiet a problem you/they have.....you may think about using the stream to generate some power or if enough "fall" the ram pump.....however as written already...rainwater harvest at HH level is just the most economically and sustainable.....
Good luck
Theo Haiti
1 Comment
-
Dear Haiti, I aggree the Rainwater harvesting is one option, but the main challenges is individual storage tank, the community is very poor community
-
-
if there is no viable alternative to lifting water 500+ m, then the objective should be to get the required energy as inexpensively as possible and to minimize the amount of water needed. the fact that the source is north facing does not eliminate the potential for using solar energy, the facilities for which can be placed elsewhere. a reservoir above the town will allow the maximization of pumping when energy is available and cheap.
1 Comment
-
Thank you appricaited
-
-
Assuming each household will use about 500 liters per day, you need about 75 m3/day. It would be interesting to know what their current water source is - are they carrying water from the proposed source, or is there a closer spring that is insufficient, or are they collecting rainwater. An option is always to carry out a detailed rainwater collection programme such that each household has sufficient storage to carry them over the dry months during a 1:10 year drought. If the rainfall or roof area is insufficient, consider designing household storage to provide at least 100 liters per day for drinking and cooking. This would reduce the requirements for the high cost pumped supply. A grey water recycling system could also be considered to further reduce the need for pumped water. Ultimately though you will need to pump some of the water. Because of the very high head it is advisable to pump in stages (say 3 to 5), and power from the available electric cable may be the most economical and sustainable solution.
1 Comment
-
thank you for better alternative and the community has traditional spout and which source is reducing and almost dry up 3-4 dry month
-
-
Sir.
I have had to deal with similar situations previously.
The biggest problem is that new property developments overseas are very often totally uncontrolled! There seems to be a simple expectation that the responsible water utility has a duty to provide a water supply to any property.
This is partially true - But there are guidelines regarding 'reasonable' conditions.
To provide a potable water supply to high elevations, WILL require infrastructure reinforcement. This will generally involve pumps, new, often larger diameter mains, service reservoirs and additional water treatment. i.e. Capital Cost!
Who pays for this?
Harsh, but simple.... Build a property where a potable water supply is not currently available, then be prepared to pay for it.
In the UK this is called an Infrastructure charge, which is commonly levied against all new properties.
Water Utilities World-Wide, are cash poor. They cannot continue to supply a quality product unless properly funded.
1 Comment
-
Yes, thank you for sharing your experience
-
-
Dear Sir
On my opinion you can harvest rain water and keep in concrete tank of PE tank 2-5 m3. But if you want to pump the water from the reservoir which be very far and you need pump station may be 10 stations of pump and using solar power system and you can use hydroturbine when you flow the rain water in this village as well. Seem like you construct the new reservoir ehich close to your villadge us the best choice.
AGGIE
Energy and Environment Consultant
BKK Thailand
-
Dai,
Please share location details at servicesenvirochem@gmail.com
We have an innovative solution specially designed for Nepal.
To design the Water Supply System we require only city name for which we are designing the system and distance from any nearby major city in Nepal.
-
Dear Kavindra,
When you say 500 m down, I take it as a level difference between source and point of delivery. The maximum pressure on pipe will be 50 kgf/sqcm. + the head due to frictional losses. You should have given the desired discharge (liters per second or so). We have designed many water supply schemes, highest with 200 + meters total head; but your case seems to be unique. For the desired 'low cost' solution, you should break the rising main in several stages. Please give the length of the pipeline, which should be more than 500 meters. You can further interact on east5star@gmail.com
-
@Kabindra Pudasaini Would a hydraulic ram pump be an option? 500 m is probably too much?
-
500 m is equivalent to 50 bar net operating pressure, so theoretically one well designed and manufactured pump could do this job. But you need to specify the exact volume of water to be pumped, e. g. in m³/day to cover the daily demand, or as peek value in m³/h. Is there treated wastewater available at this location ? Could allow to address a pressure exchange system. with very low electrical energy demand. But as "each case is different", what I call the "golden rule of chemical engineering", more details are necessary, including the questions "voltage at the near grid ?", "who pays ?" and "are there funds for consultancy support ?".
-
You still need several pumping stages and energy source for pumping. So my suggestion is look for alternative energy such as wind or solar. I assume hydroelectric energy is not feasible in your area.
Related to shadow zone, first you need to make a further feasibilty study to justify whether the area is applicable for solar power or not since nowadays there are many method for optimizing solar power.
One more thing, you also need to measure the height for elevated water tank if you want to distribute by gravity to reduce electricity usage.
Hope this helps.
-
Archimedes Prinzip in several steps
-
Intake structure + pump through pressure filter - CWR - Single stage high lift pumping - to Service Reservoir at topmost level - Chlorination- Distribution network supply by gravity
-
Have to know desired pumping rate into a pressure vessel. A well company can do all this
-
Rain water can be harvested and stored directly in storage tanks. This water is potable after first rain and can be used for drinking purpose also. At height the sufficient velocity of air found, so you can use wind energy and also solar energy source.When perennial reliable and safe source is not available, pipeline from distant sources can be laid. This bulk water is available from river, pond, dam, bore wells or storage tank itself, where water is available. Water from source is treated at village level and even at household level, if needed. If bulk water available from the distant source is treated and potable, then further treatment may not be required at village level.
-
Gravitational water source found. Supplies for 2MM people for 100 years. Perfect natural barriers to allow water reserves. If interested let me know.
-
Well, much information is not there such as pipe sizing and flow per second, but with that I would suggest using a solar-driven 500 hp pump. The only company I know with that is a pre-packaged system is Worldwater & Solar Power (NJ). - Scott Sklar, President, The Stella Group, Ltd, and Adjunct Prof at The George Washington University (DC)
-
More info please. 1. GPS. 2. population. 3. all waste produced. Answer to follow!
1 Comment
-
Colleagues.
Sorry to be blunt, but this is not a technically difficult problem to resolve.
The point you all seem to be missing, is that there is a huge capital cost involved to resolve the problem.
Where does the money come from to fund ANY of the solutions proposed?
Lots of solutions, but how are you to fund them?
-
-
Hi Tyas,
Ganga Cleaning & rejuvenation program is taken care by National Mission Of Cleaning Ganga under Ministry of Water Resources. Address is given below you may write them to get the name of correct person who's in-charge of data control to provide you appropriate data before & after treatment:
NATIONAL MISSION FOR CLEAN GANGA
(Ministry of Water Resources,River Development & Ganga Rejuvenation)
1st Floor, Major Dhyan Chand National Stadium, India Gate, New Delhi - 110002
Telephone : +91-011-23072900-901
Email : csractivity@nmcg.nic.in; admn.nmcg@nic.in
Please surf the link below:
This report is prepared by Central Pollution Control Board in 2013. You may get substantial data about condition of Ganga River before treatment started.
It's a huge project and divided into many segments. My company in India is involved in this mission also and doing many projects related to Bioremediation of open drains discharging contaminants in the river.
If you require my help please do write to me at mamta.tomar@gmail.com
1 Comment
-
MAMTA TOMAR thank you so much for your help, Madam. I send you an email to ask further information and i attached a questionnaire on the email to you. Have you received my email?
-